2026-05-27T00:31:24Z https://ejournal.undip.ac.id/index.php/index/oai

oai:ojs.ejournal.undip.ac.id:article/29259 2020-12-16T21:04:21Z presipitasi:RSA

Identifikasi dan Informasi Teknologi Penanggulangan Logam Berat pada Lokasi Pengembangan Padi Organik di Kabupaten Batang Identification and Information of Metals Control Technology at Organic Rice Development Locations in Batang Regency Hindarwati, Yulis Purbalisa, Wahyu Sukarjo, Sukarjo Ilmu Lingkungan logam berat; padi organik; teknologi remediasi Environmental Science metal; organic rice; remediation technology Meningkatnya permintaan pasar akan konsumsi beras organik berkorelasi dengan peningkatan kawasan pengembangan padi organik. Identifikasi ini bertujuan untuk mengetahui kandungan logam berat sebelum pengembangan dilaksanakan dan alternatif teknologi dapat diterapkan. Survei dilakukan pada hamparan lahan berteras di kawasan pengembangan padi organik Jawa Tengah di Desa Getas, Kecamatan Bawang, Kabupaten Batang. Pengambilan sampel tanah pada hamparan berteras dibagi berdasarkan aliran air pengairan atau ketinggian tempat yaitu lahan sawah bagian : atas, atas-tengah, tengah, tengah-bawah, dan bawah. Contoh tanah diambil secara zig-zag pada kedalaman 0-20 dan 20-40 cm dimana masing-masing posisi diambil 8 titik tunggal dan dikompositkan. Contoh tanah diujikan untuk mengetahui kandungan logam berat Pb, Cd, dan Cu. Berdasarkan hasil pengujian terdapat logam pada hamparan di setiap bagian kedalaman. Pada kedalaman tanah 0-20 cm mengandung logam Pb, Cd dan Cu masing-masing sebesar 24,62; 1,70; 25,07 mg/kg, dan pada kedalaman tanah 20-40 cm mengandung 25,00; 1,72 dan 25,96 mg/kg. Batas kritis logam Pb, Cd dan Cu dalam tanah berturut-turut 100-400 ; 3,3 dan 50-140 mg/kg. Teknologi yang dapat diterapkan dalam meminimalisir logam berat dengan menambahkan bahan organik dan biochar kedalam tanah dan  melakukan fitoremediasi menggunakan tanaman air pada pintu masuk air. Increasing market demand for organic rice consumption correlates with increasing organic rice development area. Identifications aim to determine residual content of metals before development conducted and alternatives implemented technology. Survey conducted on a stretch of terraced land in Central Java organic rice development area in Getas Village, Bawang District, Batang Regency. Soil samples were taken in terraced based on irrigation water flow or height place, namely: upper, upper-middle, middle, middle bottom, and lower. Soil samples were taken zigzag in 0-20 and 20-40 cm depth, where each position was taken 8 single points and composite. Soil samples were tested to determine the content of heavy metals Pb, Cd, and Cu. Based on test results, metals are found on each depth. In 0-20 cm depth the soil contains Pb, Cd and Cu respectively of 24.62; 1.70; 25.07 mg/kg, and in 20-40 cm depth containing 25.0 ; 1.72 and 25.96 mg/kg. Critical limits of Pb, Cd, and Cu metals in soils are 100-400; 3,3 and 50-140 mg/kg, respectively. Implemented technology in minimizing metals by adding organic material and biochar to soil and phytoremediation using water plants at the entrance of water. Universitas Diponegoro - 2020-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29259 10.14710/presipitasi.v17i2.113-120 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 113-120 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 113-120 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29259/pdf_1 Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/71723 2025-12-13T04:17:17Z presipitasi:RCS

Comparing K-Means and K-Medoids for Industrial Air Pollution Analysis in Central Java Putri, Rani Rachma Astining Fajri, Roifah Suhardono, Sapta Candraningtyas, Callista Fabiola Septiariva, Iva Yenis Environmental Science; Environmental Engineering; Algorithms Air polution; clustering; data mining; k-means; k-medoids Air is a fundamental necessity for all living beings, especially humans. However, human activities whether intentional or unintentional can degrade air quality through pollution. This study compares the performance of the K-Means and K-Medoids clustering algorithms in analyzing the air pollution load from the industrial sector in Central Java in 2021. Using a quantitative approach and R Studio software, the analysis focuses on SO₂ and NO₂ pollution data obtained from the official Central Java BPS website. The results indicate that the K-Medoids algorithm with the silhouette method yields the most optimal clustering performance, with the lowest Davies-Bouldin Index (DBI) value of 0.6201437 and 10 distinct clusters. Notably, Cluster 1 comprises districts with the highest industrial air pollution burden such as Banjarnegara Regency, which recorded 14,472 industries and NO₂ and SO₂ concentrations of 20 μg/m³ and 6 μg/m³, respectively. These findings demonstrate that clustering algorithms not only help reveal spatial pollution patterns but also provide critical insights for prioritizing targeted mitigation efforts and informing environmental policy-making in industrially active regions. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/71723 10.14710/presipitasi.v22i3.852-864 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 852-864 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 852-864 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/71723/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46639 2023-01-04T02:30:50Z presipitasi:RCS

Sensitivity Analysis on Soil and Water Assesment Tool (SWAT) Model at Brantas Watershed, East Java Indonesia Sujarwo, Mohamad Wawan Indarto, Indarto Mandala, Marga hydrological modeling; environmental engineering; Catchment Hydrology Sensitivity; analysis; SWAT-CUP; SUFI; brantas; east java Brantas Watershed and its tributaries (approximately 14,103 km2) are essential in supplying water for About 30% of the East Java province population. Management of water resources in this watershed has become a challenging issue. The modelling processes' conformity and results to mimic the existing hydrological processes are still in question. This study aims to analyze sensitive parameters of the SWAT (Soil & Water Assessment Tool) model on the significant watershed. The input model is climate and spatial (DEM, soil layer, LULC) data. The observes the hydrological processes monthly and annually from the model result. Next, Sensitivity analysis using the SWAT-CUP tool and SUFI algorithm shows 18 sensitive parameters. The nine (9) parameters have a more than 50% sensitivity level. The four (4) correlated to the soil layer's runoff generation and water movement. Then, eight (8) parameters are related to baseflow calculation. Simulation results illustrate the strong effect of climate change (especially rainfall) on water yield and sedimentation. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46639 10.14710/presipitasi.v19i3.498-509 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 498-509 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 498-509 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46639/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11009 2016-05-05T01:28:38Z presipitasi:RVA

IDENTIFIKASI KELAS AIR DAN PENENTUAN DAYA TAMPUNG BEBAN CEMARAN BOD SUNGAI DENGAN MODEL QUAL2E (STUDI KASUS SUNGAI SERAYU, JAWA TENGAH) Nugraha, Winardi Dwi Environmental Engineering Serayu river, BOD, water contaminant, water quality, water class, maximum debit . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11009 10.14710/presipitasi.v5i2.31-41 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 31-41 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 31-41 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11009/8693

oai:ojs.ejournal.undip.ac.id:article/62183 2025-05-18T20:37:10Z presipitasi:RCS

Analysis of Carbon Monoxide on Transportation Along the Eastern Crossroad of Jambi M.Das, Amsori Adriansyah, Endi Viareco, Hariestya Sufra, Rifqi Suzana, Asih Herawati, Peppy Environmental Engineering Air quality assessment; carbon monoxide; traffic emissions The Eastern Crossroad is one of the national roads that connect the city of Jambi with other cities, districts, and provinces, resulting in relatively heavy traffic and frequent congestion on this road. This has led to the concentration of carbon monoxide (CO), which can result in a decline in ambient air quality. The research used a quantitative descriptive approach aimed at depicting the ambient air quality of CO on Mendalo Darat Road, which is part of Eastern Crossroad. The research revealed the highest vehicle density of 17,954 units in the morning on Tuesday, with the highest emission rate of 114,290 µg/m.s, and the lowest density on Sunday morning with 6,568 units and an emission rate of 44,207 µg/m.s. The highest accumulation of CO emission levels occurred on Tuesday evening, reaching 38,536.44 µg/Nm3. Overall, the ambient air quality of CO on Mendalo Darat Road tends to exceed the quality standards. The accumulation of increased CO emissions correlates closely with the road's national status, increased vehicle density due to high community activity, changes in the day's status (working day), and road conditions with traffic signal devices. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62183 10.14710/presipitasi.v21i2.527-542 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 527-542 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 527-542 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62183/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/34351 2022-02-16T03:29:41Z presipitasi:RSA

Improvement of Soil Chemichal Properties using Corn Cob Biochar (BTJ) Setiani, Vivin Priastuti, Ulvi Yuniarta, Dwi Pradevi Waste water treatment biochar; soil; C-organic; chemical contents Corn waste is a solid waste that is still limited in use. One of the efforts that can be made to increase the use-value of maize waste is to convert it into biochar. Corn cobs are a component of corn that can be processed into biochar and can improve soil quality. This study aims to analyze the ability of corn waste biochar (in terms of chemical content and gas emissions) in improving soil quality. Primary data were collected by measuring C element using gravimetric method, N element using kjeldahl method, P element using oslen method, K (NH4O AC pH 7), pH using potentiometric, and CO2 emissions from biochar. Biochar is made by burning corn cobs at 500 oC without oxygen for 2 hours. Chemical content measurement of corn cob biochar, known as biochar tongkol jagung (BTJ) and soil, was carried out for eight weeks. The chemical elements of the mixture of biochar and soil at week 8 include C-Organic (0.7%), Total N (0.1%), P2O5 (10.6 ppm), K2O (0.28 me), pH (6.19), and CO2 emissions (6.64 mg CO2/day). Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34351 10.14710/presipitasi.v18i1.1-9 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 1-9 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 1-9 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34351/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/34351/6850 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/34351/6851 Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/81514 2026-04-01T01:40:47Z presipitasi:RVA

Thermal Characterization and Heat Conductivity of Palm Kernel Shell-Based Briquettes Tarigan, Enda Rasilta Rahmansyah, Abdul Azis Khatami, Muhammad Fisika Material Biomass briquettes; heat conductivity; renewable solid fuel; palm kernel shell; thermal properties Palm kernel shell (PKS), a major by-product of the palm oil industry, has emerged as a promising sustainable feedstock for solid biofuel briquettes. This study presents a systematic review of PKS briquettes, emphasizing their thermal properties, briquetting technologies, pretreatment methods, environmental and economic impacts, and future prospects. A PRISMA-based methodology was applied to ensure transparent identification, screening, and synthesis of relevant peer-reviewed studies on PKS briquette production and performance. The review indicates that PKS briquettes generally possess high calorific value, substantial fixed carbon content, and competitive combustion performance compared with other biomass fuels. Advances in densification techniques and pretreatment processes have improved fuel quality, durability, and energy efficiency. Despite these strengths, several research gaps persist. Standardized data on thermal conductivity and heat transfer remain limited, and comparative assessments with conventional fuels such as coal and firewood are insufficient. Moreover, inconsistencies in experimental conditions hinder cross-study evaluation, while emissions characteristics and large-scale industrial feasibility are underreported. By consolidating current findings and identifying critical knowledge gaps, this review offers a structured foundation for future research and informed policymaking, supporting the integration of PKS briquettes into sustainable energy and circular economy strategies in palm oil–producing regions. Universitas Diponegoro 2026-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/81514 10.14710/presipitasi.v0i0.%p Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Article in Press 2026 (For Upcoming Issue) Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Article in Press 2026 (For Upcoming Issue) 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/81514/pdf Copyright (c) 2026 Enda Rasilta Tarigan, Abdul Azis Rahmansyah, Muhammad Khatami http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/71646 2025-12-13T04:17:17Z presipitasi:RCS

Isotope Analysis of 18O and 2H: A Coastal Confined Aquifer Case Study Nugraheni, Vania Salsabila Anabel Santi, Narulita Putranto, Thomas Triadi Marin, Jenian Hidayatillah, Ahmad Syauqi hidrogeologi, geologi, geologi lingkungan Chemical and physical characteristics; d-excess, drought; Semarang groundwater; stable isotopes In 2023, groundwater quality in Semarang declined due to excessive extraction, leading to land subsidence and reduced groundwater availability. Prolonged dry seasons caused drought in ten villages across five sub-districts. This study aims to investigate geological conditions, groundwater flow patterns, and the spatial distribution of pH, TDS, hardness, electrical conductivity, and major ions (Na⁺, Ca²⁺, Cl⁻, and HCO₃⁻). Additionally, it seeks to interpret groundwater evolution through Gibbs diagram analysis and identify groundwater origins using stable isotopes (¹⁸O and ²H). The methodology involves stable isotope analysis to trace groundwater sources and evaluate d-excess values, which are linked to drought conditions and recharge mechanisms. Water chemistry analysis was performed to characterize ion concentrations, while the Gibbs diagram was used to identify the dominant geochemical processes influencing groundwater. The study area comprises claystone, marl, sandstone, volcanic breccia, and alluvium, with 60 sampling points spanning Upper and Lower Semarang. Water types identified include NaHCO₃, NaCl, CaHCO₃, MgHCO₃, and NaSO₄. NaHCO₃ was the most common, followed by NaCl and CaHCO₃. Isotope analysis revealed several points with d-excess <10 (e.g., SB-10L, SB-20L, SA-4, SA-8, SA-29), indicating groundwater recharge from modern rainfall, typically characterized by d-excess values >10.  Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/71646 10.14710/presipitasi.v22i3.909-921 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 909-921 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 909-921 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/71646/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/51441 2023-04-08T21:36:46Z presipitasi:RCS

Determination of Quality and Trophic Status of Cibabat Lake, Cimahi City Wardhani, Eka Nopiyani, Tri Rizki Handiani, Dian Noor Teknik Lingkungan Lake; pollutant index; water quality status; trophic status; hypereutrophic; potential pollutant load In Cimahi City, the river water is heavily polluted, and well water is not suitable for drinking water, so to anticipate the lack of clean water, the Environmental Service is planning to revitalize one of the ponds, namely the Cibabat Lake. This study’s purpose is to determine the reservoir’s condition based on water quality and trophic status. The method used for calculating water quality status is the Pollutant Index, which refers to the Decree of the Minister of Environment Number 115 of 2003 with results is 8,450, and will be 8,751 in 2022, with the water quality classified status as moderately polluted. Meanwhile, the method to assess trophic status uses the Carlson Trophic State Index (TSI) method by taking air samples for the parameters Total Nitrogen, Total Phosphate, Chlorophyll-a, and brightness which is included in the hypereutrophic category. The Cibabat Reservoir has been polluted by domestic waste based on the calculation of the potential pollutant load such as BOD, COD, TSS, Total Phosphate and Total Nitrogen in the border area is 2,219,600; 3,051,950; 2,108,620; 11,623; and 108,206 kg/day, respectively. DTA area is 1,886.660: 2,594.158; 1,792.327; 9,905; 91.975 kg/day, respectively. This is influenced by the increasing population each year. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51441 10.14710/presipitasi.v20i1.114-125 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 114-125 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 114-125 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51441/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/16029 2020-04-17T11:35:02Z presipitasi:RSA

Potensi Chlorella Sp. untuk Menyisihkan COD dan Nitrat dalam Limbah Cair Tahu Istirokhatun, Titik Aulia, Mustika Utomo, Sudarno Teknik Lingkungan Chlorella sp., tofu-processing wastewater, COD, nitrate In order to examine the potential use of tofu-processing wastewater as growth media for microalgae, this research was conducted by cultivating microalgae in varying concentrations. The type of microalga selected in the experiment was Chlorella sp. due to its high reproductive rate. The ability of Chlorella sp. in removing the levels of COD and nitrate contained in the tofu liquid waste were also investigated. This study examined the microalgae growth rate, microalgae cell abundance values, reduced organic levels of COD and nitrate of Chlorella sp which cultivated in tofu wastewater medium. The optimum growth of Chlorella sp was found at 30% v/v of tofu wastewater which reduce COD and nitrate up to 77.40% and 30.03% respectively. From this study, we concluded that tofu-processing wastewater is effective to use as microalgae growth media and at the same time, effective to eliminate COD and nitrate. Universitas Diponegoro 2017-11-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16029 10.14710/presipitasi.v14i2.88-96 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 88-96 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 88-96 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16029/pdf Copyright (c) 2017 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/64778 2025-05-18T20:39:07Z presipitasi:RCS

Domestic Wastewater Treatment to Control River Pollution in Sungai Pinang, Samarinda, East Kalimantan Suhartono, Eko Erlena, Erlena Sekartaji, Hapsari Lintang Putera, Gusti Muhammad Perdana Thalib, Iskandar Syauqiah, Isna Hafifah, Ifa Trang, Ha Thi Thu Kesehatan Lingkungan, Teknik Lingkungan, Rekayasa Ilmu Lingkunga, Ilmu Lingkungan Domestic wastewater; filtration; treatment engineering; water pollution Filtration is a method for controlling water pollution. This study aimed to engineer a filtration system using a combination of Melaleuca cajuputi (galam) wood charcoal and zeolite to process domestic wastewater. The research focused on domestic wastewater from Sungai Pinang Village, Samarinda, East Kalimantan, an area with significant water pollution issues. The samples were divided into three groups, each containing zeolite and galam wood charcoal in different ratios: Group 1 (1:1), Group 2 (1:2), and Group 3 (2:1). Each sample was exposed to contact times of 30, 60, and 90 minutes. Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Ammonia (NH3), and pH were measured for each treatment group at each contact time. Results showed that prolonged contact with the filtration method significantly reduced all parameters except pH (P<0.05). Each treatment combination did not significantly reduce all parameters except pH (P>0.05). Group 2 was found to be the most effective in improving water quality. In conclusion, this study demonstrates that the filtration method can reduce pollutant levels, with the combination of galam wood charcoal and zeolite in a 2:1 ratio being the most effective. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64778 10.14710/presipitasi.v21i3.869-878 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 869-878 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 869-878 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64778/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/41430 2022-02-19T00:21:43Z presipitasi:RCS

Feasibility Study of Mernek Milik Kita Program (MERLITA) using Social Return on Investment (SROI) Method Suryani, Retno Ikhlas, Nurani Environmental Economic impact assessment; MERLITA; SROI; community development The MERLITA (Mernek Milik Kita) program is a community development program for PT Pertamina (Persero) Fuel Terminal Maos Cilacap, which was carried out in Mernek Village, Maos District, Cilacap Regency. This program aims to increase the income of farmers and farm laborers by changing the function of planting rice for consumption into superior seeds. In addition, it also encourages environmentally friendly and sustainable agricultural practices because these seeds can reduce the use of urea which can reduce greenhouse gas emissions. The MERLITA program has a significant impact on economic and environmental development in Mernek Village, the community around Mernek village feels the impact. Therefore, in this paper, the results of the Impact Assessment of the program using the SROI method will be given. The measurement results obtained the value of the SROI ratio of 1.34, indicating that every 1 rupiah invested has an impact value of Rp. 1.34. This situation proves that the MERLITA Program is still feasible to be conducted and still positively impacting Mernek Village economy. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/41430 10.14710/presipitasi.v18i3.367-376 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 367-376 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 367-376 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/41430/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10992 2016-05-04T21:57:18Z presipitasi:RVA

PENGARUH KEPADATAN KENDARAAN BERMOTOR DAN ANGIN TERHADAP KONSENTRASI TIMBAL (Pb) PADA DAUN ANGSANA (Pterocarpus indicus) DAN MAHONI (Swietenia macrophylia) DI MUSIM KEMARAU Huboyo, Haryono Setiyo Sumiyati, Sri Environmental Engineering lead concentration, angsana leaf, mahagony leaf, vehicle capacity, wind velocity . Universitas Diponegoro 2009-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10992 10.14710/presipitasi.v6i1.1-5 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 1-5 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 1-5 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10992/8677

oai:ojs.ejournal.undip.ac.id:article/54413 2024-06-14T22:00:52Z presipitasi:RCS

Planning a Waste Processing Site with the 3r Plus Principle in Kapur Village, Sungai Raya District, Kubu Raya Regency Andriyani, Yenni Fitrianingsih, Yulisa Purnaini, Rizki Teknik Lingkungan Selotif method; waste management system; temporary waste disposal 3r plus Kapur Village is located in Sungai Raya District, Kubu Raya Regency. The existing condition of waste management has not been implemented properly due to the lack of waste management facilities, namely temporary waste disposal and other communal waste containers, so efforts are needed to handle the waste management system, by planning temporary waste disposal 3R plus. The aim of planning is to know, analyse existing condition of management waste, generation size, density, waste composition and planning the 3R temporary waste disposal design. The research method is sampling generation, density and composition of waste according to SNI-19-3964-1994, conducting interviews and questionnaires to obtain selected locations. The resulting waste generation is 0.35 kg/person/day. The density of domestic source waste is 142.09 kg/m3, while the largest density of non-domestic source waste is produced from restaurants at 113.32 kg/m3. The composition of domestic waste is dominated by organic waste with a percentage of 49.3%, while non-domestic waste is dominated by paper waste with a percentage of 30.60%. This 3R plus temporary waste disposal planning requires land of 1,112.3 m2. The planned waste management is is processing organic waste into composting using the hollow brick method, while inorganic waste in the form of plastics and bottles is processed into handicraft products. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54413 10.14710/presipitasi.v20i3.545-559 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 545-559 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 545-559 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54413/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/22857 2020-04-17T11:37:59Z presipitasi:RSA

Pengaruh Penambahan Gula Pasir Terhadap Kualitas Makanan Kelinci dari Limbah Sayuran Pasar dengan Teknologi Fermentasi Sutrisno, Endro Hadiwidodo, Mochtar Handayani, Dwi Siwi Wardhana, Irawan Wisnu Sabrina, Azzura Teknik Lingkungan Limbah sayuran pasar, gula pasir, makanan kelinci, teknologi fermentasi Sampah merupakan masalah yang paling umum ditemui di Indonesia.  Peningkatan jumlah penduduk di Indonesia yang semakin meningkat menyebabkan meningkatnya jumlah sampah yang dihasilkan dan berdampak buruk bagi lingkungan. Berkembangnya Kota Semarang mengakibatkan jumlah penduduk di Kota Semarang meningkat disertai dengan peningkatan konsumsi masyarakat. Masyarakat di Kota Semarang dalam memenuhi kebutuhan konsumsi harian salah satunya dilakukan di pasar. Dengan meningkatnya tingkat konsumsi masyarakat di pasar mengakibatkan jumlah limbah padat organik pasar-pasar di Kota Semarang khususnya limbah sayuran ikut meningkat. Pemanfaatan limbah sayuran pasar biasanya dijadikan pupuk. Selain dimanfaatkan menjadi pupuk, limbah sayuran pasar dapat juga dijadikan pakan ternak yaitu pakan kelinci. Jika diolah menjadi pakan kelinci, sampah tersebut tidak hanya menjadi sebuah produk saja tetapi dari hasil pakan yang dikonsumsi oleh kelinci tersebut menghasilkan daging dengan kualitas yang baik serta menghasilkan pupuk organik hasil dari kotoran kelinci. Pemanfaatan limbah sayuran pasar ini dilakukan dengan pengolahan limbah sayuran pasar menjadi pakan kelinci dengan penambahan gula pasir sebagai sumber energi. Pengolahan limbah sayuran pasar menjadi pakan kelinci dilakukan dengan teknologi fermentasi. Proses fermentasi dilakukan selama 7 hari.   Universitas Diponegoro 2019-06-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22857 10.14710/presipitasi.v16i1.16-23 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 16-23 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 16-23 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22857/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/68001 2025-12-04T00:06:42Z presipitasi:RSA

Innovative Pyrolysis Reactor for Liquid Smoke, Activated Carbon, and Limestone Production Naswir, Muhammad Lestari, Intan Jalius, Jalius Natalia, Desfaur Wibowo, Yudha Gusti Teknik Lingkungan; ilmu Lingkungan 3-in-1 pyrolysis reactor; activated carbon; liquid smoke; limestone; innovative pyrolysis This study presents the development and application of an innovative 3-in-1 nanotechnology pyrolysis reactor designed to simultaneously produce liquid smoke, activated carbon, and limestone from locally sourced raw materials in Jambi Province, Indonesia. The multifunctional reactor combines three production processes, which are traditionally performed separately, into a single, efficient unit, addressing both economic and environmental challenges. Coal serves as the primary heat source and material for activated carbon, whereas shell waste is calcined to produce limestone. The reactor operates at temperatures exceeding 550°C to ensure optimal conversion, with a glass wool insulator replacing clay to enhance thermal efficiency. The liquid smoke undergoes further distillation to achieve purification, while residual activated carbon is chemically activated with H₃PO₄ to enhance its adsorption capacity. The experimental results demonstrate that this reactor can produce high-quality products with minimal resource wastage. This 3-in-1 pyrolysis reactor represents a sustainable, cost-effective solution for resource-limited settings, with broad potential for application in waste-to-product conversion, environmental remediation, and rural development. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/68001 10.14710/presipitasi.v22i2.360-379 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 360-379 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 360-379 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/68001/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/45940 2022-12-14T20:16:03Z presipitasi:RCS

Hazardous Solid Waste Management in Universitas Diponegoro: Planning Towards Environmental Sustainability Sumiyati, Sri Ramadan, Bimastyaji Surya Budihardjo, Mochamad Arief Al-Hafidz, Aufa Rahma Muhammad Salman, Haekal Awliya Wirawan, Rizal Adi Teknik Lingkungan Environmental sustainability; hazardous solid waste; Universitas Diponegoro; waste management system Universitas Diponegoro has a role in contributing to considerable numbers of hazardous solid waste from academic activities as it is the largest university in Central Java Province, Indonesia. Therefore, improper hazardous solid waste will cause potential disease for humans and pollute the environment. For this reason, proper hazardous solid waste management is urgently needed. This research aims to design hazardous solid waste management for Universitas Diponegoro as a pilot testing study. The research used questionnaires, surveys, in-depth interviews, and observations to construct an appropriate hazardous waste management system. The result showed that hazardous solid waste in Universitas Diponegoro came from 5 sources: education, office, laboratory, supporting facilities, and Pleburan Campus. The estimation of hazardous solid waste produced by the Universitas Diponegoro in 2021 is as much as 100.4 kg/day. The hazardous waste characteristics are toxic, corrosive, flammable, and infectious. In the hazardous management planning that was developed, the design of the waste transportation and storage system at the waste station in the Tembalang and Pleburan campuses has a total investment and operation cost of Rp 6,259,841,999 for 10 years of operation. This design is hoped to enhance the campus's achievement in sustainability efforts. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45940 10.14710/presipitasi.v19i1.148-157 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 148-157 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 148-157 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45940/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10968 2016-05-05T04:32:12Z presipitasi:RVA

PENGARUH POROSITAS DAN PERMEABILITAS TANAH SERTA JARAK TANGKI SEPTIK TERHADAP KONSENTRASI BAKTERI ESCHERICHIA COLI DALAM AIR TANAH DANGKAL DI WILAYAH PESISIR (STUDI KASUS: PESISIR SEMARANG UTARA) Wardhana, Irawan Wisnu Zaman, Badrus Environmental Engineering Porosity, permeability, ground water, Escherichia Coli bacteria . Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10968 10.14710/presipitasi.v4i1.23-29 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 23-29 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 23-29 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10968/8659

oai:ojs.ejournal.undip.ac.id:article/54840 2025-05-18T20:36:13Z presipitasi:RSA

Biogas Purification using Modified Red Mud Adsorbent with a Study of the Length of the Adsorbent Column Ivontianti, Wivina Diah Putri, Gayu Ika Rakasiwi, Rinjani Ratih Khairi, Syahrul Rezeki, Sri Sulastri, Aini Teknik Kimia; Kimia Lingkungan; Rekayasa Lingkungan Adsorbent; biogas; dealumination; purification; red mud This study used red mud as an adsorbent for biogas purification. However, red mud had to undergo dealumination and calcination processes before being used as an adsorbent. Several acids, including 1 M HCl and 1M H2SO4, were employed in the red mud dealumination process, which was then analysed by XRF and GSA instruments. The results show that the best type of acid for the dealumination process was HCl with a Si/Al ratio, total pore volume, surface area and pore radius of 1.697; 67,081 m2/g; 0.1624 cm3/g; 48.4242 Å. The biogas purification process was carried out using red mud adsorbent dealuminated with HCl by varying the length of the adsorbent column, such as 10, 20 and 30 cm, and the contact time of 5, 10, 15 and 20 min. The optimum column length variation was 30 cm. The results obtained for this variation were a decrease in CO2 content of 292742.30 ppm with an efficiency of 19.08%. The increase in CH4 was 378232.69 ppm with a percentage increase of 240.28%. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54840 10.14710/presipitasi.v21i1.70-79 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 70-79 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 70-79 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54840/xml Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46896 2024-06-09T01:59:39Z presipitasi:RSA

Effect of Fly Ash Variation and Heating Temperature on Physical Properties, Chemical Composition, Phase Structure, and Morphology in Making Red Brick Rajiman, Rajiman Amin, Muhammad Sudibyo, Sudibyo Suprihatin, Suprihatin Rufaidah, Fahda ilmu lingkungan Clay; fly ash; physical test; characterization Red brick is a building material that can be used as a construction material. Red bricks are made of pure clay or mixed materials. This study aimed to determine the effect of fly ash and heating temperature variations on physical properties (compressive strength, density, porosity, and absorption), chemical composition, phase structure, and morphology in brick making. The addition of fly ash by 10%, 20%, 30%, 40%, and 50% of the composition of the material is 750 grams. The red bricks were printed with a size of 5 x 5 x 5 cm3, heated at 700°C and 800°C for 2 hours, and soaked for 24 hours. Physical tests include compressive strength test, density test, porosity test, and absorption test, as well as red brick characterization, namely XRF, XRD, and SEM-EDS. Red brick with sample A10 at a temperature of 700°C has the highest compressive strength value of 3.68 Mpa, while red brick with sample A10 at a temperature of 800 °C has the highest compressive strength value of 4.17 Mpa. Characterization shows that the phases formed in red brick are quartz (SiO2), hematite (Fe2O3), and anorthite (Al2O3). Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46896 10.14710/presipitasi.v19i2.373-383 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 373-383 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 373-383 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46896/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11000 2016-05-04T22:19:13Z presipitasi:RVA

PENENTUAN FAKTOR EMISI TOTAL SUSPENDED PARTICULATE (TSP) DARI PEMBAKARAN SAMPAH DOMESTIK SECARA TERBUKA DI KELURAHAN TEMBALANG METESEH DAN BULUSAN KECAMATAN TEMBALANG - SEMARANG Sutrisno, Endro Wardhana, Irawan Wisnu Environmental Engineering Open burning, TSP emission factor, Tembalang Subdistrict-Semarang . Universitas Diponegoro 2009-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11000 10.14710/presipitasi.v6i1.47-51 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 47-51 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 47-51 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11000/8684

oai:ojs.ejournal.undip.ac.id:article/59893 2025-05-18T20:37:10Z presipitasi:RCS

Water Quality Identification and Analysis of Saguling Reservoir, West Bandung Regency Maranata, Dhoni Asmaranto, Runi Sudaryanti, Sri Hidrologi, Ilmi Lingkungan Water quality; saguling reservoir; storet method The Saguling Reservoir in West Bandung Regency is crucial for local water supply and biodiversity. However, water quality has significantly declined due to human activities, environmental changes, and poor waste management. This degradation jeopardizes the reservoir's clean water supply and the ecological health of surrounding communities. This research used the STORET (Storage and Retrieval) method to assess water quality through purposive sampling in the most affected zones, analyzing physical, chemical, and biological parameters at multiple depths. Key indicators, such as dissolved oxygen, nutrient concentrations, and heavy metal presence, were measured. Results show severe water quality deterioration, especially in deeper sections with less sunlight and aeration. Elevated nitrate and phosphate levels, mainly from agricultural runoff and residential waste, exceeded environmental safety standards. Toxic heavy metals like lead and mercury were also detected, posing serious risks to aquatic life and human health. The study highlights that deeper water zones are critically impacted by pollutants, stressing the need for better regulatory frameworks and waste management. Immediate strategic interventions are crucial to restore and protect the Saguling Reservoir's water quality for future generations. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59893 10.14710/presipitasi.v21i2.433-445 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 433-445 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 433-445 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59893/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/34306 2020-12-16T21:40:32Z presipitasi:RSA

Compost Solid-phase Microbial Fuel Cell (CSMFC) Performance using Graphene and Graphite as Electrodes Putri, Soraya Annisa Confera, Akbar Nugroho Syafrudin, Syafrudin Ramadan, Bimastyaji Surya Environmental Engineering Compost Solid-phase Microbial Fuel Cell (CSMFC); Graphene; Graphite Organic waste is a type of waste produced by many sector, which need to managed appropriately. During its development, composting is one of the organic waste management efforts that is often be applied, Another alternative organic waste management in the form of Microbial Fuel Cell (MFC) has emerged. Several researchers conducted studies on MFC performance which was influenced by many factors, especially the electrode which contributes to the electron transfer process. This study has a concern about energy optimization through CSMFC technology using different electrode’s material. Electrode materials from Graphene and Graphit has good electro-conductivity and has a large surface area, making it suitable for bacteria to adhere. The sampled reactors are consists of two types of electrodes  in the form of graphite and graphene. Each materials has anode and cathode ratio of 1:1, 2:1, and 3:1. The samples measured into three kinds, which called a mature compost measurement, electrochemical measurement, and biochemical measurement. Some collected sampling data were then processed and analyzed statistically using SPSS software. The processed and analyzed data included the calculation of power density, total N, C/N ratio, and moisture content. Any data like voltage (V) and electric current (I) are needed to obtain a power density. The highest average voltage, current, power and power density are produced by the N3 reactor (graphene 3:1) that is 269 x 10-3 V, 163 x 10-6 A, 56 x 10-6 Watt and 1.914 x 10-3 W / m2. There is no significant effect of variations in the type of electrode (graphite and graphene) on CSMFC performances. Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34306 10.14710/presipitasi.v17i3.324-333 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 324-333 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 324-333 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34306/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/80008 2026-04-21T07:44:25Z presipitasi:RSA

Anthropogenic and Natural Drivers of Land Subsidence Wahyudi, Rochmad Kismartini, Kismartini Budihardjo, Mochamad Arief Puspita, Annisa Sila Ammar, Marah Anthropogenic drivers; coastal subsidence; coastal vulnerability; land deformation; natural processes This review is the first attempt to integrate natural and anthropogenic drivers of coastal subsidence, the evolution of monitoring techniques, and geo-environmental impacts, with a focus on coupled human-environment systems. This review compares traditional geodetic techniques (levelling, GNSS) with other satellite and geophysical methods (InSAR, LiDAR, microgravity, and seismic survey) and assesses subsidence monitoring under different geo-environmental conditions. Empirical evidence from the northern coastline of Java, in particular Semarang, shows that subsidence has occurred at an annual rate of 2–10 + cm, which is directly linked to groundwater exploitation, alteration of land use, and coastal construction, which exacerbates tidal flooding, coastal recession, saltwater encroachment, ecosystem destruction, infrastructure deterioration, and social impacts. The findings suggest that subsidence is a unique geophysical phenomenon and not a result of anthropogenic interactions with natural systems involving water, land use, coasts, and public administration frameworks. This type of integration is essential for improved risk assessment, resilience, and sustainable development. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/80008 10.14710/presipitasi.v23i1.115-129 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 115-129 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 115-129 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/80008/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/1483 2015-11-13T10:02:18Z presipitasi:RVA

MODEL CEMARAN SENG (Zn) DI PERAIRAN SUNGAI DENGAN METODE UPWIND DAN METODE QUICKEST BERDASARKAN PEMBAGANAN ABBOT-IONESCHU (Studi Kasus : Kaligarang Semarang) Zaman, Badrus Syafrudin, Syafrudin Environmental Engineering; Environment Kali Garang, Seng (Zn), Pembaganan Abbot-Ioneschu, Upwind, Quickest Kali  Garang  kondisinya  sangat  dipengaruhi  oleh  lingkungan  sekitar  sungai.  Kali  Garang  juga mempunyai fungsi sebagai buangan limbah industri yang terdapat di sekitar bantaran sungai. Seng (Zn) adalah salah satu polutan logam berat yang terdapat di Kali Garang. Untuk mengetahui besarnya cemaran  dan  cara  yang  lebih  sederhana  dalam  proses  pemantauan  dapat  dilakukan  dengan membuat model cemaran di perairan sungai tersebut. Penelitian model cemaran ini menggunakan model matematis dengan metode Upwind dan metode Quickest berdasarkan pembaganan Abbot-Ioneschu, kemudian diaplikasikan ke dalam software Delphi 6. Hasil dari penelitian yang dilakukan pada  saat  pengukuran  di  sepanjang  Kali  Garang,  diketahui  bahwa  kandungan  Zn  di  lokasi  KG1 (Jembatan Pramuka) sebesar 0,715 – 0,806 mg/l, KG2 (Jembatan Tinjomoyo) sebesar 0,611 – 0,911 mg/l,  dan  KG3  (Jembatan  Tugu  Suharto)  sebesar  0,826  –  1,420  mg/l.  Sedangkan  hasil  metode Upwind untuk rentang waktu t = 0 – 18 jam mempunyai konsentrasi Zn sebesar 0,561 – 1,495 mg/l dengan nilai kesalahan terhadap data pengukuran masing-masing sebesar 0 % dan hasil metode Quickest untuk rentang waktu t = 0 – 18 jam mempunyai konsentrasi Zn sebesar 0,611 – 1,356 mg/l dengan nilai kesalahan terhadap data pengukuran masing-masing sebesar 0 %. Universitas Diponegoro 2010-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1483 10.14710/presipitasi.v7i2.77-82 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 2 (2010): Vol 7, No 2 (2010); 77-82 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 2 (2010): Vol 7, No 2 (2010); 77-82 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1483/1244

oai:ojs.ejournal.undip.ac.id:article/49463 2023-04-08T21:36:46Z presipitasi:RSA

Compost Quality of Compost Process Grass Waste with Composting Bin Method Setiani, Vivin Nindyapuspa, Ayu Nurbiyanti, Rizki Alifiya Teknik Pengolahan Limbah Compost; grass waste; banana leaf waste; cotton waste The increasing of organic waste can increase environmental pollution. This can be overcome by doing aerobic composting of organic waste. This was because the method includes a simple composting method in its application. The aim of this study is to analyze the quality of compost from grass waste. In this study, composting of grass waste, banana leaf waste and cotton waste has been carried out aerobically with the waste composting method. The compost material consisted of 76% grass waste, 12% banana leaf waste and 12% cotton waste with the addition of EM4 0, 10 and 50 mL/Kg doses of compost material. Monitoring of quality compost consist of temperature, pH, moisture content, C/N ratio, phosphor and potassium. Analysis of compost quality in this study refers to SNI 19-7030-2004. The results showed that the quality of compost without the addition of EM4 was the best compost quality of all the variables in this study. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49463 10.14710/presipitasi.v20i1.11-20 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 11-20 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 11-20 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49463/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/49463/11754 Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/14714 2020-04-17T11:33:48Z presipitasi:RSA

KARAKTERISTIK BRIKET DARI KOMPOSIT SAMPAH BUAH, SAMPAH PLASTIK HIGH DENSITY POLYETHYLENE (HDPE) DAN TEMPURUNG KELAPA SEBAGAI BAHAN BAKAR ALTERNATIF DI RUMAH TANGGA Ruslinda, Yenni Husna, Fitratul Nabila, Arum Teknik Lingkungan alternative fuels, briquettes, coconut shell, fruit waste, HDPE plastic waste This study aims to examine the characteristics of briquettes from fruit waste, HDPE plastic waste, and coconut shell composite, as an alternative fuel. Characteristic tests include physical characteristics (density and compressive strength), chemical characteristics (moisture, volatile content, fixed carbon, ash content, calorific value), and cost calculation for making briquettes. Physical characteristics tests obtained that density is between 0.60 to 0.89 g/cm3 and compressive strength is between 0.88 to 6.87 kg/cm2. Chemical characteristics tests found that water content 5.73 - 9.06%; volatile content 70.02 - 79.92%; fixed carbon 12.39 - 18.41%; ash content of 1.47 - 4.86%, and calorific value 4549 - 7213 cal/g. Cost for making briquettes range between 0.56 to 0.86 rupiahs/kcal. Except for compressive strength parameter, other parameters are in the standard range of biobriquettes quality according to Permen ESDM No. 047 Tahun 2006. Optimum briquette found in this research is a mixture of 20% fruit waste, 20% of plastic waste HDPE, and 60% coconut shell. Briquettes made as a mixture of those three raw material with that composition is optimum as an alternative fuel, because it produces higher calorific value and lower cost.  Universitas Diponegoro 2017-05-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14714 10.14710/presipitasi.v14i1.5-14 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 5-14 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 5-14 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14714/11216 Copyright (c) 2017 Jurnal  Presipitasi  :  Media  Komunikasi  dan  Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/63081 2025-12-04T00:06:38Z presipitasi:RCS

Value-Added Analysis of Used Cooking Oil Recycling as a Base Material for Floor Cleaning Soap: A Case Study of Putra Abadi MSMEs in Pagalaram City, South Sumatra Pratiwi, Vania Maharani Rizky Matin, Hashfi Hawali Abdul Setyono, Prabang Environmental Science; Environmental Engineering Added value; recycling; used cooking oil; floor cleaning soap Used cooking oil disposed directly to the ground by Putra Abadi MSMEs can threaten the surrounding environment. It is necessary to manage used cooking oil by reprocessing it into another form that can be useful, namely by processing it into floor cleaning soap to overcome these problems. The purpose of this study was to determine the suitability of the content of floor cleaning soap made from used cooking oil from the production process of Putra Abadi MSMEs with SNI Floor Cleaning Soap and to determine the added value of floor cleaning soap made from used cooking oil from the production process of Putra Abadi MSMEs in terms of economy and ecology. The method used is the experimental making of floor cleaning soap with analysis of floor cleaning soap content test data referring to SNI 1842: 2019. Analysis of ecological added value is explained descriptively by considering abiotic, biotic, and cultural components; Economic feasibility analysis is carried out by calculating B/C and PBP. The results of this study indicate that variation 4 is the variation with the best composition that meets the SNI 1842: 2019 non-disinfectant category and is economically viable. Manufacturing these products provides ecological benefits, including reducing environmental pollution, restoring aquatic and soil biota habitats, and encouraging sustainable behaviour patterns. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63081 10.14710/presipitasi.v22i1.287-300 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 287-300 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 287-300 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63081/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/38339 2022-02-16T03:26:18Z presipitasi:RSA

Home Biogas Production using Homemade Bio-activator with Chicken Manure Surianto, Heru Raharjo, Slamet Wulandari, Suci Teknik Lingkungan Biogas, digester, food waste, homemade activator, chicken manure The previous experiment was obtained that homemade activator is the best activator to produce biogas by using food waste consist of vegetable, fruit and rice waste.  The current research is carried out by adding chicken manure as a co-activator. Chicken manure content rich in nitrogen can be significantly enhance biogas production. This study is expected to increase the biogas production. There are two processes conducted at the laboratory scale, batch and semi-continuous process. The batch process aim to activate bacteria. The ratio set at food waste/chicken manure, 2 : 1 of digester #1, 3 : 1 of digester #2, 4 : 1 of digester #3 and digester control using food waste only. Stage two aims to produce biogas by adding food waste for 6 days periodically.  The ratio is set at food waste/water, 1 : 2. The highest biogas yielded is digester 2 with a cumulative volume biogas 120.77 liters consist of 71.01% CH4, 26% CO2, 2.9% O2 and 0.088% H2S. The potential of methane gas produced is 0.87 kWh and methane volume per TS and VS at around 18.72 L/kg and 34.68 L/kg, respectively. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/38339 10.14710/presipitasi.v18i2.271-281 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 271-281 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 271-281 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/38339/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/9093 2020-04-17T11:31:50Z presipitasi:RVA

ANALISIS KESESUAIAN PENGGUNAAN LAHAN PADA DAERAH RAWAN TANAH LONGSOR DI KABUPATEN TEGAL Gilang Rupaka, Anggun Prima Suharyanto, Suharyanto Sudarno, Sudarno Environmental Engineering; Environment Landslide,GIS, Land Suitability, Tegal. The frequency of landslides in Tegal regency increasing every year. The distribution area arealso more widespread, especially in districts Jatinegara, Bojong and Bumijawa. These regions has ahilly topography profile with a height ranging from 400 - 1200 meters above sea level. The landslide’sfactors that use as the parameters in this study are rainfall, slope, soil type, depth of soil solum andland use. Suitability of land use based on the level of vulnerability to landslides associated with thelevel of capacity and vulnerability, because the area that not conform based on these factors are theresidential area.The method used to calculate and analyze the landslide-prone area in this study are with thehelp of GIS. The software were used to analyze consist of ArcGIS 10, ER Mapper 7.0 and Basemap.Satellite images digitized with ArcGIS to produce maps of land use. Then the land-use maps overlaidwith maps of slope, soil type maps, rainfall maps and depth of solum. Predefined values for eachparameter were then summed and classified based on assessment standards. The landslidesusceptibility map is then used to analyze the suitability of land in landslide-prone areas in Tegalregency. The level of capacity and vulnerability to disasters in areas prone to landslides obtained byinterview in the form of a questionnaire.Subdistrict Jatinegara, Bojong and Bumijawa has an area of 25.000 hectares, 37,81% of thearea that included in the "Landslide Prone" category, while the 59.82% of the area goes into the"Pretty-Prone Landslide" category. Conversion of forest land into agricultural production into is the oneof the factors that aggravate the landslide that happened. Villagers who live in landslide-prone areasdo not have the awareness that cutting down trees and intensive agriculture are causing landslidesthat in their area, in addition to soil type and slope factors that dominant. Vulnerability and capacity tolandslides in the region included in the low category. Factors that influence are economic level,education level, living conditions and the condition of the access road.  Universitas Diponegoro 2015-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9093 10.14710/presipitasi.v12i2.52-56 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 12, No 2 (2015): September 2015; 52-56 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 12, No 2 (2015): September 2015; 52-56 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9093/7364

oai:ojs.ejournal.undip.ac.id:article/55721 2023-08-18T02:24:32Z presipitasi:RCS

A Mapping Outcome Method Using Social Return on Investment (SROI) to Assess the Impacts of Program: A Case Study in Setunak Island Suryani, Retno Budi Susilo, Nugroho Desta, Ode Arinal Silfiana, Andriani Wulansari, Rina Sila Puspita, Annisa SROI; climate change; Setunak Island Climate change as a global phenomenon is inevitable, including in Indonesia. Its impacts include rising sea levels, expanding coral bleaching, and declining coastal ecosystems, particularly mangrove forests and coral reefs.  Many research explores the characteristics of vulnerability to climate change in coastal cities and seeks feasible adaptation options for these cities with method used involved surveys of residents, interviews with experts, and statistical analysis and modeling. Although efforts have been made to prevent climate change, there is still a lack of research that explores the broader impacts of these efforts. In this regard, few studies have measured the social, economic, or environmental value that arises from these efforts. This study aims to evaluate, measure, and assess the impacts that have occurred as a result of the implementation of the program from environmental, economic, welfare, and social perspectives comprehensively. The result show that the SROI study results indicate that the Pulau Tahan program has positive economic, social, and environmental impacts. However, the on-field study also found a less positive fact regarding the availability of crab seedlings. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55721 10.14710/presipitasi.v20i2.378-389 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 378-389 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 378-389 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55721/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20801 2020-04-17T11:37:02Z presipitasi:RSA

ANALISIS FLUKTUASI PEMAKAIAN AIR PDAM TIRTA MOEDAL KOTA SEMARANG WILAYAH STUDI DMA TEJOSARI DAN MEGA BUKIT MAS Prasasti, Riski Adyan Samudro, Ganjar Teknik Lingkungan fluktuasi pemakaian air; sistem penyediaan air minum Setiap wilayah memiliki pemakaian air yang berbeda-beda pada setiap jam dan hari sebagai fluktuasi pemakaian air. Dengan pemakaian air yang berbeda-beda, maka sistem penyediaan air membutuhkan suplai air yang berbeda pula, sesuai dengan fluktuasi pemakaian air tiap wilayah. Dengan mengetahui fluktuasi pemakaian air, maka operasi sistem penyediaan air minum dapat direncanakan untuk memenuhi kebutuhan air. Penelitian ini bertujuan untuk merencanakan operasional sistem penyediaan air secara efisien berdasarkan fluktuasi pemakaian air. Dalam penelitian ini, wilayah kajian adalah DMA Tejosari dan Mega Bukit Mas, PDAM Tirta Moedal Kota Semarang Cabang Semarang Selatan. Pengambilan data didapatkan dari pembacaan meter induk di wilayah studi selama tujuh hari. Hasil penelitian ini didapatkan bahwa jam puncak penggunaan air berada pada jam pertama air mengalir, dengan faktor jam puncak secara berturut-turut adalah 1,64 dan 1,68. Sedangkan untuk faktor harian maksimum kedua DMA sebesar 1,25. Selain untuk mengetahui faktor jam puncak dan harian maksimum, pembacaan meter induk juga bertujuan untuk mengetahui volume reservoir yang dibutuhkan yaitu sebesar 628,25 m3  untuk DMA Tejosari. Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20801 10.14710/presipitasi.v15i2.106-113 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 106-113 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 106-113 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20801/14088 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/67603 2025-12-04T00:06:38Z presipitasi:RCS

Urban-Rural Innovation of the ABCD-based Mangunharjo Mandiri Sejahtera (MAMISERA) Program by Pertamina AFT Ahmad Yani Respati, Iklima Nur Riyadi, Agus Suprihatiningsih, Suprihatiningsih Putra, Muhammad Rinaldy Winastu, Hadna Trie Urban-rural; corporate social responsibility; mamisera The MAMISERA program by PT Pertamina Patra Niaga AFT Ahmad Yani in Mangunharjo Village addresses environmental and economic issues using the Asset-Based Community Development (ABCD) approach. Since 2020, it has focused on fish farming, production units, savings and loans, and waste processing. The program enhances local assets, including natural and human resources. Economically, the Trengginas Jaya Abadi cooperative, managed by 14 members, boosts income through milkfish product management. Environmentally, it converts milkfish waste into organic fertilizer and fish feed, reducing waste by 150 kg/year. Mangrove planting improves the marine ecosystem, cutting CO2 emissions by 0.0057 tons/year, while LPG-fueled feed machines reduce emissions by 0.00468 tons/year. This program integrates urban-rural synergy for sustainable development.  Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67603 10.14710/presipitasi.v22i1.247-259 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 247-259 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 247-259 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67603/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/41886 2022-12-14T20:16:03Z presipitasi:RSA

Performance of Electrocoagulation Process for Microplastic Fibre Removal from Laundry Wastewater Wulandari, Marita Setyorini, Intan Dwi Wahyu Handayani, Anggie Melinda Ariani, Ismi Khairunnissa Zulfikar, Ainun Teknik Lingkungan Electrocoagulation; microplastics; removal Laundry wastewater contains not only detergent but also contains fabric fibres and threads. Microplastic fibres have been discovered as a potential source of microplastic fibres in synthetic clothing washed in the environment. To reduce microplastic concentration in wastewater, many approaches have been developed. Electrocoagulation is one of them. Using both synthetic microplastics and laundry wastewater samples, this study examined the performance of electrocoagulation methods to remove microplastics. The flocculation and deposition mechanisms remove microplastic fibre. This research was set up by using a reactor with a volume of 1 L, 60 V of voltage and 60 minutes of contact time. Electrical current of 5A and 10A was applied to remove microplastic fibres during electrocoagulation (EC). The removal efficiency of polyester fibre was 55-68 per cent for 60 minutes with a current of 5A and 42-85 per cent for 60 minutes with a current of 10A. Polyamide fibre removal efficiency in 60 minutes is 53 per cent to 74 per cent at 5A current and 57 per cent to 72 per cent at 10A current. According to this study, it can be concluded that EC can remove microplastic fibre from laundry effluent. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/41886 10.14710/presipitasi.v19i1.34-43 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 34-43 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 34-43 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/41886/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10960 2016-05-04T09:08:33Z presipitasi:RVA

UJI PEMBUATAN BIOGAS DARI KOTORAN GAJAH DENGAN VARIASI PENAMBAHAN URINE GAJAH DAN AIR Hardyanti, Nurandani Sutrisno, Endro Environmental Engineering elephant manure, elephant urine, starter, biogas, calorie value Biogas was a gas produced from biological activities in anaerobic fermentation processes and as  a renewable  energy.  This  research  was  to  find  out  the  effect  between  elephant  manure, elephant urine, water and starter to reduce biogas production and calorie value. This research is divided  into  three groups  based  on  the  raw  material,  i.e.,  elephant  manure,  elephant  urine, water  and  starter  as independent  variabels.  Observation  is  consisted  of  biogas  production volume and calorie value. This result showed that in 21 days, elephant manure mixtured with elephant urine with ratios of 1:2  was the best material to produce biogas, that was 60,800 ml of biogas and 5345.39 cal/liters of calorie value. Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10960 10.14710/presipitasi.v3i2.73-77 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 73-77 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 73-77 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10960/8650

oai:ojs.ejournal.undip.ac.id:article/58131 2025-05-18T20:36:13Z presipitasi:RCS

Life Cycle Assessment to Compare the Environmental of Food Waste Management System in Semarang City Qadar, Syahrul Al Budihardjo, Mochamad Arief Priyambada, Ika Bagus Teknik lingkungan; Ilmu lingkungan; Teknik penyehatan Food waste; life cycle assessment; semarang; sustainable development goals 1.3 billion tons of the food produced for human consumption is wasted in the food supply chain as a result of a number of issues. A high proportion of food waste occurs during consumption, primarily influenced by consumer behavior. In Semarang City, Black Soldier Fly, incineration, and composting are alternatives to food waste management. This research aims to analyze alternative food waste management methods that yield reusable resources and materials because currently unknown which method has the smallest environmental impact. Life Cycle Assessment method can be used to examine the environmental impact of the food waste management system from every phase 1 ton food waste analyze. BSF has proven superior to composting, incineration and landfilling methods in analyzes of potential environmental impacts that reduce 90% environmental impact. Landfills cover a large area and the effect of global warming is significant until of 1.704E+03 CO2-eq, this issue needs more attention in the management of the generated CH4. Incineration needs to make advances in the method such as producing new resources and emissions so that can be reused because incineration impact eutrophication potential until 2.438E+00 . For reasons environmental concerns, efficient food waste management is crucial to realizing the Sustainable Development Goals. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58131 10.14710/presipitasi.v21i1.154-164 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 154-164 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 154-164 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58131/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/25426 2020-08-30T22:28:29Z presipitasi:RSA

Pengolahan Limbah Ikan Menjadi Biodiesel dengan Radiasi Mikrogelombang Processing Fish Waste Into Biodiesel Using Microwave Radiation Purwaningrum, Shintawati Dyah Sukaryo, Sukaryo Teknik Kimia proses; limbah ikan; biodiesel; microwave Teknik Lingkungan processing, fish waste, biodiesel, microwave Limbah ikan diketahui masih mengandung minyak dalam jumlah yang cukup besar, sehingga perlu dilakukan pengolahan menjadi sesuatu yang lebih bermanfaat, salah satunya biodiesel. Langkah pertama dalam pembuatan biodiesel yaitu pengambilan minyak dari limbah ikan dengan cara pengukusan, kemudian dianalisa kadar asam lemak bebas. Proses dilanjutkan dengan esterifikasi karena nilai FFA diatas 1%, dengan waktu reaksi 15 menit dan daya microwave sebesar 450 watt. Reaksi esterifikasi dan transesterifikasi berlangsung di dalam microwave yang dimodifikasi. Penelitian ini menggunakan variabel bebas berupa variasi daya mikrogelombang (microwave) 300, 450, 600 dan 800 watt dan perbandingan banyaknya minyak dengan pelarut methanol 1:6, 1:12, 1:18, 1:24. Rendemen tertinggi diperoleh pada variable perbandingan reaktan 1:18 dan daya microwave 600 watt sebesar 97%, sedangkan rendemen terendah ditemukan pada variable 1:6 dengan daya gelombang microwave 300 watt sebesar 88%. GC-MS digunakan untuk mengetahui apakah terbentuk metil ester pada biodiesel atau tidak. Metil ester yang terkandung berupa asam stearat dengan luas area sebesar 21%. Analisis karakteristik biodiesel densitas sebesar 863 kg/m3, viskositas 3,12 mm2/s, angka setana sebesar 55,72. Dari beberapa uji karakteristik biodiesel limbah ikan masuk dalam syarat biodiesel Standar Nasional Indonesia. Pengujian kadar air menunjukkan angka yang masih tinggi di atas batas yang ditetapkan SNI yaitu sebesar 0,80 %. The fish waste contains a lot of oil, so there needs to be a way to treat fish waste to be more useful. One way that can be done is to process it into biodiesel. Biodiesel production begins with taking oil from fish waste by steaming, fish waste oil was analyzed for free fatty acid levels, and obtained by 1.8%. The process was continued with esterification because the FFA value was above 1%, with a reaction time of 15 minutes and a 450watt microwave power. The esterification and transesterification process were carried out in a modified microwave. This study uses a variable change in the form of micro-wave (microwave) power variations of 300, 450, 600 and 800 watts and the ratio of moles of oil to methanol 1: 6, 1:12, 1:18, 1:24. The highest yield obtained by Biodiesel in reactant ratio 1:18 variable and 600 watt microwave power by 97%, while the lowest yield in variable 1: 6 with 300 watt microwave wave power by 88%. Biodiesel from fish waste produced was analyzed using GC-MS to determine the formation of methyl esters. The methyl esters contained in the form of stearic acid with an area of 21%. Analysis of the characteristics of biodiesel density was 863 kg/m3, viscosity was 3.12 mm2/s, cetane number was 55.72. From several characteristics test of biodiesel, fish waste is included in the biodiesel requirements of the Indonesian National Standard. Testing the water content is still high above the limit set by SNI biodiesel which is equal to 0.80%. Universitas Diponegoro 2020-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/25426 10.14710/presipitasi.v17i1.38-43 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 38-43 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 38-43 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/25426/pdf_1 Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/72812 2025-12-13T04:17:17Z presipitasi:RCS

Analysis of Soil Fertility and Sustainability of Shallot Intensive Farming Nugraha, Septian Hadi Suryaningtyas, Dyah Tjahyandari Hariyadi, Hariyadi Natural Resource and Environmental Management Sciences Fertility evaluation; multi-aspect sustainability analysis; rapid appraisal for farming; sustainability analysis Larangan District is one of the shallot-producing areas that the government prioritizes for agricultural intensification. The high intensity of agriculture in Larangan District causes soil fertility and sustainability disparities. This research evaluates soil fertility and the sustainability of shallot farming intensification activities in Larangan District, Brebes Regency. Soil fertility evaluation used two different approaches: Base Cation Saturation Ratio (BCSR), which referred to Koppitke & Menzies research in 2007 and assessment through a combination of soil chemical properties, as referred to Soil Research Center of Indonesia. Sustainability analysis was carried out using the Rapid Appraisal for Farming (RAP-Farm) approach with a multi-aspect sustainability analysis method, with a total of 6 aspects (ecological, economic, social, institutional, technological, and logistics, and infrastructure) with 36 factors. The results of the research show that Larangan District has a moderate soil fertility status, with a nutrient unbalance from cation ratio analysis. Sustainability status shows a less sustainable status with aspects that have values below the limit, namely ecology, economics, and technology. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/72812 10.14710/presipitasi.v22i3.766-781 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 766-781 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 766-781 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/72812/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10982 2016-05-21T15:44:06Z presipitasi:RVA

STUDI EVALUASI INSTALASI PENGOLAHAN AIR BERSIH UNTUK KEBUTUHAN DOMESTIK DAN NON DOMESTIK (STUDI KASUS PERUSAHAAN TEKSTIL BAWEN KABUPATEN SEMARANG) Hardyanti, Nurandani Fitri, Nurmeta Diana Environmental Engineering water, pH, hardness, manganese, Apac Inti Corpora company Water  was  the  fundamental  needs  for  industrial  in  every  production  process  and  all  the activities. Apac  Inti  Corpora  company  was  the  textile  industrial  with  production  process  are spinning  and weaving.  It  usually  required  water  with  high  quality  such  as  lowest  pH  and hardness. They needed high quality water by water treatment plant. They treated ground water that contained manganese and iron to fulfill domestic needs by aerasi and filtrasi with filter sand. They  treated  water  from  Bade  river  and Sarana  Tirta  Ungaran  to  fulfill  non  domestic  needs. Water  from  Bade  river  contained  highest colour  and  turbidity  and  processed  with  screening, coagulation, flokulalation, sedimentation and filtration. To eliminate content of hardness, these water continued to treat by  softener unit. Softener  unit will degrade kesadahan less than 5 ppm CaCO 3 . Quality of treated water has been fulfilled Permenkes RI No.907/MENKES/SK/VII/2002, except colour content from Bade river. Universitas Diponegoro 2006-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10982 10.14710/presipitasi.v1i1.37-42 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 37-42 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 37-42 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10982/8673

oai:ojs.ejournal.undip.ac.id:article/59644 2025-05-18T20:36:13Z presipitasi:RCS

Identifying Factors Influencing Sanitation Condition in Homes within Jatisari Urban Village, Semarang City Herawati, Lutfyana Wijayanti, Yuni public health, enviromental, and residential environment Knowledge; attitudes; income; education; home sanitation The condition of the sanitation environment within households is a crucial aspect of community health, ensuring the adoption of behaviors conducive to cleanliness and well-being. Inadequate sanitation conditions within homes pose risks and facilitate the transmission of various diseases. This research aims to explore factors associated with household sanitation conditions, including knowledge, attitudes, income, and education. The study employs an observational analytics approach, utilizing a cross-sectional design. The sample comprises 95 respondents, with research instruments including questionnaires and observational sheets. Data analysis involves both univariate and bivariate analyses, utilizing chi-square tests. Univariate analysis reveals that 42 respondents (44.2%) possess good knowledge, 48 (50.5%) exhibit positive attitudes, 54 (56.8%) have higher education levels, and 53 (55.8%) earn less than Rp. 3,060,000. Moreover, 80 respondents (84.2%) have adequate sanitation conditions at home. Bivariate analysis demonstrates significant relationships between knowledge (p = 0.000), attitude (p = 0.022), income (p = 0.019), education (p = 0.018), and household sanitation conditions. The findings suggest that enhancing awareness and promoting hygiene practices among the residents of Jatisari Village, Semarang City, can mitigate disease transmission and improve overall community health. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59644 10.14710/presipitasi.v21i1.290-299 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 290-299 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 290-299 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59644/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/32075 2020-12-16T21:32:48Z presipitasi:RSA

Bioremediasi Limbah Cair Industri Tahu Menggunakan Larutan EM4 secara Anaerob-Aerob Bioremediation of Tofu Industrial Wastewater Using Anaerobic-Aerobic Solution of EM4 Deffy, Trisca Nilandita, Widya Munfarida, Ida Teknik Lingkungan Limbah Cair Tahu, EM4, Sistem Anaerob-Aeorb Environmental Engineering Tofu wastewater, EM4, anaerob-aerob system Penelitian ini menggunakan proses pengolahan bioremediasi dengan sistem anaerob-aerob dengan mencampurkan limbah cair tahu dan larutan EM4 ke dalam reaktor. Variasi larutan EM4 yang akan digunakan dalam penelitian ini adalah konsentrasi 1/20 dengan konsentrasi dan waktu detensi 1/10. Penelitian ini dilakukan selama 8 hari. Hasil penelitian menunjukkan bahwa larutan EM4 mampu menurunkan BOD, COD, dan TSS dengan menggunakan variasi konsentrasi dan waktu detensi. Penurunan kadar BOD, COD, dan TSS yang paling signifikan terjadi pada hari ke-8. Kadar BOD untuk reaktor pertama pada konsentrasi 1/10 dengan efisiensi penyisihan 48,98% dan reaktor kedua dengan efisiensi penyisihan 48,98%. Untuk konsentrasi 1/20 efisiensi penyisihan adalah 37,33% dan pada reaktor kedua efisiensi penyisihan adalah 37,34%. Kadar COD reaktor pertama pada konsentrasi 1/10 dengan efisiensi penyisihan 61,82% dan reakotor kedua dengan efisiensi penyisihan 62,10%. Untuk konsentrasi 1/20 efisiensi penyisihan adalah 30,39% dan pada reaktor kedua efisiensi penyisihan adalah 34,98%. Kadar TSS reaktor pertama pada konsentrasi 1/20 dengan efisiensi penyisihan 41,17% dan pada reaktor kedua efisiensi penyisihan 43,59%. Pada konsentrasi 1/20 efisiensi penyisihan kadar TSS pada reaktor pertama 1,02% dan pada reaktor kedua efisiensi penyisihan 5,10%. Bioremediasi dengan menggunakan larutan EM4 dapat digunakan untuk menurunkan kadar BOD, COD, dan TSS limbah cair tahu yang sesuai dengan baku mutu yang berlaku. This research using a bioremediation treatment process with anaerobic-aerobic system by mixing tofu liquid waste and EM4 solution into the reactor. The variation of EM4 solution that will be used in this research is 1/20 of concentration with 1/10 of concentration and detention time. This research was conducted for 8 days. The result showed that EM4 solution was able to reduce BOD, COD, and TSS by usinng variations in concentration and detention time. The most significant decrease in BOD, COD, adn TSS levels occured on the 8 day. BOD levels for the first reactor at a concentration of 1/10 with a removal efficiency of 48,98% and a second reactor with  removal efficiency of 48,98%. For the 1/20 concentration the removal efficiency was 37,33% and in second reactor the removal efficiency was 37,34%. COD levels for the first reactor at a concentration of 1/10 with a removal efficiency of 61,82% and a second reacotor with removal efficiency of 62,10%. For the 1/20 concentration the removal efficiency was 30,39% an in second reactor the removal efficiency was 34,98%. TSS levels for the first reactor at a concentration 1/20 with removal efficiency of 41,17% and in the second reactor the removal efficiency of 43,59%. At 1/20 concentration the removal efficiency of TSS levels was 1,02% in the first reactor and in the second reactor the removal efficiancy was 5,10%. Bioremediation using EM4 solution can be used to reduce levels of BOD, COD, and TSS of tofu liquid waste according to the applicable quality standards Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/32075 10.14710/presipitasi.v17i3.233-241 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 233-241 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 233-241 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/32075/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/77208 2026-04-21T07:44:25Z presipitasi:RCS

Long-Term Rainfall and Temperature Trends in East Java Under Climate Change Pujiastuti, Ratih Suharyanto, Suharyanto Wulandari, Dyah Ari Nuramini, Tika Morena Teknik Sipil; Sumber Daya Air Climate change; Mann-Kendall; rainfall ; temperature At present, climate change is a global issue affecting the entire world, including tropical countries such as Indonesia. Previous studies have indicated that changes in these conditions have grave impacts on hydrological disasters. Therefore, the pattern of climate change needs to be analyzed for the feasibility of adaptation and mitigation in the future. This present study developed analyses into the trend in temperature variation over East Java both on an annual and daily time scale. Observation data within a long period from 1985 to 2023 was used for comprehensive results. Methods applied include linear regression, the Man-Kendall test, and Sen's Slope test. The new finding that emerged for the temperature variable was that the increase in temperature went over the global and national averages and consistently showed a significant increasing trend across the study area. However, the rainfall variable revealed different results in highlands, where the rainfall intensity decreased-in SDII and R100, inversely proportional to coastal areas. It means that climate change does not occur uniformly everywhere but varies spatially. These findings raise a case for climate change mapping to formulate appropriate adaptation and mitigation strategies. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/77208 10.14710/presipitasi.v23i1.272-284 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 272-284 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 272-284 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/77208/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/56165 2023-08-18T02:24:32Z presipitasi:RCS

The Impact of Mountain Semeru's Eruption on Groundwater Resources in the Rejali Watershed in 2021 Qurotulayun, Aulia Agustin Haribowo, Riyanto Sambah, Abu Bakar Environment; water quality; eruption Mount Semeru is an active volcano and the highest on the island of Java with an altitude of 3726 meters above sea level (masl). The last major activity of Mount Semeru which occurred on 04 December 2021, there was an eruption or Hot Cloud Fall (GAP). According to the Centre for Volcanology and Geological Hazard Mitigation (PVMBG, 2021), the GAP in this incident was directed towards the southeast of Mount Semeru, namely Curah Kobokan with a glide distance of up to 11 km. The area affected by GAP is a small part of Malang Regency and Lumajang Regency. The purpose of this study is to analyze the quality of groundwater resources in the Rejali watershed after the eruption of Mount Semeru in 2021. This type of research is quantitative research. All data obtained is processed using the Pollution Index (IP) method listed in the Decree of the Minister of Environment Number: 115 of 2003 concerning Guidelines for Determining Water Quality Status. The groundwater quality parameters used are pH, BOD, DO, TDS, Fe, Mn, TSS, and COD. The results of this study are, the pollution index value in segments 1-3 is moderately polluted, and in segments 4-5 is lightly polluted. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56165 10.14710/presipitasi.v20i2.481-493 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 481-493 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 481-493 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56165/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/48090 2023-01-04T02:30:50Z presipitasi:RSA

Comparison between Calibration and Addition Method of Lead and Chromium Total Testing in Textile Industrial Wastewater using AAS Sean, Ayunda Hartati, Etih Marganingrum, Dyah Teknik Lingkungan AAS, addition method; calibration method; textile industry Most of the wastewater from the textile industry in Indonesia has a negative impact on the environment and society. The wastewater contains heavy metals such as lead (Pb) and total chromium (Cr-Tot) from the coloring process. Pb and Cr-Tot parameters testing usually use Atomic Absorption Spectrophotometer (AAS). The purpose of this study was to compare between the calibration and the addition method to test the metal parameters of Pb and Cr-Tot contained in wastewater of textile industry of PT. X. Calibration method is often use for heavy metal concentration test than addition method. However calibration method is not frequently used for low concentration while addition method can be used for that. The difference between two methods is in the procedure. The concentrations of Pb and Cr-Tot using calibration method were 0.058 mg/L and 0.018 mg/L, respectively. Meanwhile, the concentrations of Pb and Cr-Tot using the addition method were 1.1419 mg/L and 1.1036 mg/L, respectively. Based on this research, the addition method gives a relatively better value and fulfills the interval requirements in the AAS readings for low Pb metal concentrations. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48090 10.14710/presipitasi.v19i3.651-658 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 651-658 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 651-658 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48090/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11118 2020-04-17T11:32:47Z presipitasi:RVA

KUALITAS UDARA DALAM RUANG DI DAERAH PARKIR BASEMENT DAN PARKIR UPPERGROUND (STUDI KASUS DI SUPERMARKET SEMARANG) Huboyo, Haryono Setiyo Istirokhatun, Titik Sutrisno, Endro Environmental Engineering air pollutants, enclosed building, parking, weekdays, weekend Ever increasing building growth in urban areas is limited by land availability. Lack of space in this area lead to build high rise building rather landed building. In this type of building, parking area  is  built  in  the  basement  and  or upperground  inside  the  building.  Within  this  enclosed space,  indoor  air quality  might  a  problem.  This  study  focus  to  compare  emerged pollutants between  basement  parking  area  and  upperground  parking  area in  supermarket  building.  The dust  sampler,  the  impinger  and  the  CO monitor  were  used  to  measure  TSP,  NO 2   and  CO concentrations respectively  in  these  areas  during  supermarket  operations.  In  the basement area,  in  particular,  the  TSP  concentrations  tend  to  exceeds  300 µg/m 3   mainly  at  weekend period. While for NO 2  and CO concentrations still meet the air quality standard. Based on these findings it seems the main source of pollutants was derived from dust resuspension. Thus, the mitigation measures to reduce this dust resuspension should be emphasized in order to prevent air quality deterioration in the basement parking area. Universitas Diponegoro 2016-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11118 10.14710/presipitasi.v13i1.8-12 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 1 (2016): Maret 2016; 8-12 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 1 (2016): Maret 2016; 8-12 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11118/8750

oai:ojs.ejournal.undip.ac.id:article/58392 2025-05-18T20:39:07Z presipitasi:RSA

Effect of Blue Light Color on Zn (II) and Cu (II) Metal Biosorption Using Tetraselmis chuii Microalgae Dewi, Tanti Utami Utami Setiawan, Adhi Dzulfikar, Muhammad Hanif Putri, Desita Ramadona Syah Gunawan, Karina Larasati Prianto, Haekal Irfan Titan Firnandi, Rahmad Direct release of inorganic compounds Cu (II) and Zn (II) into water bodies can disrupt ecosystems. Using microalgae biosorbent Tetraselmis chuii (T. chuii) is a promising approach for removing these metals from wastewater. This study investigated the effect of blue light on the absorption of Cu (II) and Zn (II) by analyzing the contact time and initial concentration. Statistical analysis (MANOVA) revealed differences in the biosorption process due to the contact time and Cu (II) concentration (P <0.05). The results showed that the most effective Cu (II) removal occurred with a 60-minute contact time at a concentration of 5 mg/L, achieving a 67.07% removal rate. Zn (II) removal was also efficient under blue light conditions with a 60-minute contact time at the same concentration, yielding a 56.23% removal rate. Additionally, this process led to a substantial reduction in microalgae T. chuii cell density, by 76% for Cu (II) and 89.2% for Zn(II). Characterization analyses using Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy confirmed the presence of functional groups in T. chuii microalgae, which are crucial for the biosorption process. This study underscores the potential of microalgae as effective biosorbents for mitigating inorganic compound pollution in wastewater.  Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58392 10.14710/presipitasi.v21i3.670-680 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 670-680 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 670-680 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58392/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/36673 2022-02-16T03:26:18Z presipitasi:RSA

Electrochemical Peroxidation Method for Reduction of Chemical Oxygen Demand (COD) Carbofuran in Furadan 3GR Pesticides Wahyuni, Ayu Sri Suhartana, Suhartana Bima, Damar Nurwahyu Teknik Kimia Carbofuran; COD; Electrochemical Peroxidation; Furadan 3GR Carbofuran is a pollutant compound derived from the pesticide Furadan 3GR which is widely used in agriculture. Various methods of carbofuran degradation have been carried out, one of which is the conventional electrochemical method. This study used an electrochemical peroxidation process to degrade Carbofuran in the pesticide Furadan 3GR. This study aims to determine the optimum conditions (time, Na2SO4 concentration, and volume addition of H2O2) for electrochemical peroxidation and to compare the effectiveness of electrochemical and electrochemical peroxidation methods by measuring the parameter of carbofuran COD reduction. The significance of the electrochemical peroxidation method and the conventional electrochemical method was compared as a preliminary test. The COD reduction of Carbofuran using traditional electrochemical methods and electrochemical peroxidation was 45.76% and 88.70%, respectively. Batch carbofuran electrochemical peroxidation process was accomplished to ascertain the optimum conditions under various operation times, the concentration of Na2SO4, and the additional volume of H2O2. The largest COD reduction of 93.78% was obtained at 10 minutes, 75 mM Na2SO4, and 2 mL H2O2. The UV-Vis spectrophotometric absorption of Carbofuran at a wavelength of 274 nm was significantly reduced from 1.377 to 0.131 at optimum conditions. The IR spectrum measurement results indicate a reduction in absorbance for the N-H group (3383 cm-1) and the C=O group (1643 cm-1) at optimum conditions. Overall, the electrochemical peroxidation process proved to be an appropriate technique for COD reduction of Carbofuran in Furadan 3GR pesticides. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36673 10.14710/presipitasi.v18i2.181-191 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 181-191 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 181-191 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36673/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4930 2013-05-14T23:42:20Z presipitasi:RVA

SAMPAH UNTUK ENERGI: KELAYAKAN PEMANFAATAN LIMBAH ORGANIK DARI KANTIN DI LINGKUNGAN UNDIP BAGI PRODUKSI ENERGI DENGAN MENGGUNAKAN REAKTOR BIOGAS SKALA RUMAH TANGGA Wardana, Irawan Wisnu Junaidi, Junaidi Environmental Engineering, Environment limbah kantin, biogas, rumen Harga minyak yang melonjak mempengaruhi aktifitas perekonomian dunia termasuk Indonesia, hal tersebut mendorong pemerintah untuk mengembangkan energi terbarukan termasuk diantaranya biogas. Limbah-limbah kantin memiliki potensi untuk menjadi sumber energi terbarukan, yaitu biogas. Limbah sisa makanan dan aktifitas dapur dalam jumlah yang cukup dari kantin di lingkungan fakultas teknik dikumpulkan, dilakukan perlakuan seperti penghalusan dan homogenisasi, lalu tahap memasukkan substrat beserta ekstrak rumen sapi sebagai sumber bakteri anaerob kedalam batch reactor dengan penambahan air sebagai variasi. Dari hasil penelitian diperoleh kesimpulan, bahwa penambahan air mempengaruhi jumlah gas yang dihasilkan. Diketahui bahwa limbah yang ditambahkan air sebanyak 64 ml, mampu menghasilkan  volume gas lebih banyak dibanding yang lainnya. Umur produksi gas mampu menghasilkan gas hingga hari ke 19. Dalam penelitian didapatkan adanya penurunan dan peningkatan produksi gas. Hal ini disebabkan adanya tahap pembentukan gas yang terjadi, mulai dari tahap hidrolisis, acidogenesis, asetogenesis, dan metanogenesis. Universitas Diponegoro 2012-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4930 10.14710/presipitasi.v9i2.79-83 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 2 (2012): Vol 9, No 2 (2012); 79-83 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 2 (2012): Vol 9, No 2 (2012); 79-83 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4930/4467

oai:ojs.ejournal.undip.ac.id:article/52395 2023-08-18T02:24:32Z presipitasi:RSA

Determination of Optimum Conditions for Synthesis of Methyl Ester from Bleached Crude Palm Oil Using Sn-Zeolite and Red Mud Catalysts Amelyanti, Esi Usman, Thamrin Rahmalia, Winda Biodiesel; bleached crude palm oil; methyl aster; red mud; Sn-zeolite Methyl esters synthesis from bleached crude palm oil (BCPO) containing 0.36 and 20.86% of free fatty acids using Sn-zeolite and red mud has been done. This study aims to determine the esterification, transesterification, and transesterification-esterification simultaneous reactions optimum conditions when using Sn-zeolite, red mud, and Sn-zeolite-red mud mixture catalysts. The X-ray diffraction and Fourier transform infrared analysis results show that Sn has been impregnated on zeolite, indicated by cassiterite and Sn-O-Sn vibrational peaks in Sn-zeolite. The main component of red mud is NaCO3, indicated by analcite and carbonate peaks. Thin-layer chromatography results in the transesterification showed that red mud catalyst could totally convert triglycerides from BCPO to methyl ester when 5% catalyst, 3 hours, and CPO:methanol mole ratio 1:20 were used. In esterification, Sn-zeolite can synthesize methyl ester from low-quality CPO when using CPO:methanol mole ratio 1:20 for 3 hours, however, the conversion was not total. In the transesterification-esterification simultaneous, the conversion was also not total which the best reaction conditions at mixing Sn-zeolite:red mud 1.5:1 (w/w), 7% catalyst, and CPO:methanol mole ratio 1:20 for 3 hours. This study shows that esterification and transesterification processes can be carried out simultaneously at a particular mass ratio of Sn-zeolite and red mud. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52395 10.14710/presipitasi.v20i2.267-279 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 267-279 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 267-279 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52395/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20776 2020-04-17T11:36:19Z presipitasi:RSA

EVALUASI KINERJA INSTALASI PENGOLAHAN AIR MINUM (IPAM) KARANGPILANG I PDAM SURYA SEMBADA KOTA SURABAYA SECARA KUANTITATIF Bhaskoro, R. Gagak Eko Ramadhan, Tutut Eko Teknik Lingkungan IPAM; Kualitas Air; Evaluasi IPAM Karangpilang I  merupakan salah satu instalasi pengolahan air yang di miliki PDAM Kota Surabaya yang melayani kebutuhan air bersih di Kota Surabaya dengan kapasitas 1.450 L/det. Supaya IPAM tetap dapat beroperasi secara optimal, maka diperlukan evaluasi terhadap IPAM ini. Penelitian bertujuan untuk : 1) Mengukur kinerja tiap-tiap unit Instalasi Pengolahan Air Minum (IPAM) Karangpilang I Kota Surabaya; 2) Membandingkan kualitas air produksi yang dihasilkan oleh IPAM Karangpilang I dengan standar PERMENKES No.492 2010; 3) Menganalisa hasil evaluasi IPAM Karangpilang I. Evaluasi IPAM dilakukan dengan observasi, wawancara, studi literatur, praktik lapangan. Hasil yang diperoleh dari penelitian ini adalah Kinerja setiap unit operasi belum berjalan secara optimal, yaitu pada unit Koagulasi, Sedimentasi, Filtrasi. Kualitas air produksi IPAM Karangpilang I sesuai dengan dengan Permenkes No 492 tahun 2010 tentang Kualitas Air. Berdasarkan hasil evaluasi secara keseluruhan instalasi IPAM Karangpilang I pada saat eksisting sudah dapat mengolah air dengan baik  sehingga air yang diolah dapat memenuhi baku mutu air. Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20776 10.14710/presipitasi.v15i2.62-68 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 62-68 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 62-68 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20776/14078 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/66304 2025-12-04T00:06:38Z presipitasi:RVA

Impact of Green Building Implementation on Health and Well-being of Building Users in Indonesia Lendra, Lendra Jesica, Jesica Febrianty, Ruliana Civil Engineering; Construction Management Environmental health; green building; systematic literature review; well-being This research conducts a systematic literature review, adopting the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, to examine the impact of green building implementation on health and well-being of users in Indonesia. The aim is to systematically categorize and analyze both the positive and negative effects of green building practices on occupants while identifying specific challenges that influence occupant comfort and safety. After analyzing articles from 2018 to 2023, a total of 15 papers were identified as primary resources for this study. The research found that green buildings have both positive and negative impacts. Positive impacts include minimal air pollution, good natural lighting, cool natural ventilation, and reduced noise disturbance. There are negative impacts such as insufficient natural lighting and ventilation in some areas, high noise levels, and security issues. This research provides insights for improving green building concepts to better support public health and occupational safety. By considering these impacts, future building environments can be designed to be healthier and more conducive to promoting public health and well-being. Future research should address operational challenges by exploring hybrid systems that integrate natural and artificial elements for consistent comfort, along with innovative solutions for noise and wildlife control. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66304 10.14710/presipitasi.v22i1.1-14 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 1-14 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 1-14 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66304/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/66304/17446 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/66304/17827 Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42819 2022-02-19T00:21:43Z presipitasi:RSA

Analysis of Occupational Noise in Association with Blood Pressure Among Workers at Geothermal Power Plant Muhyidin, Muhyidin Nasri, Sjahrul Meizar Occupational Safety and Health; Environmental Health and Work Safety blood pressure; geothermal power plant; hypertension; occupational noise The purpose of this study will analyze noise intensity at a geothermal power plant and its association with employees’ blood pressure and risk of hypertension. A cross-sectional survey using questionnaire as primary data; noise dosimeter, body mass index and blood pressure measurement records as secondary data. Total 101 workers participated by purposive sampling based on a similar exposure group (SEG). Mann-Whitney & χ2 test analysis was applied to examine the association of dependent variables and independent variables. Noise intensity was measured from the noise dose result during 8 working hours. Subjects with noise dose >80 dBA had higher levels of SBP / systolic blood pressure (119.1±11.2 mmHg) and DBP / diastolic blood pressure (75.6±5.3) than subjects with noise dose ≤80 dBA (SBP: 117.9±6.6 mmHg, DBP: 75.0±5.1). The hypertension prevalence was 7.9% at participants with noise dose >80 dBA and 2.6% in noise dose ≤80 dBA. The odds ratio (OR) of noise dose >80 dBA (OR = 3.190, 95% CI = 0.358-28.394), and smoking (OR = 2.469, 95% CI = 0.416-14.645). Noise intensity was not associated with SBP (p-value = 0.664), DBP (p-value = 0.538), and hypertension (p-value = 0.405). This study was the pioneer in the geothermal industry with noise dosimetry measurement. Further comprehensive studies need to be conducted to confirm the association between noise intensity and blood pressure and the risk of hypertension. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42819 10.14710/presipitasi.v18i3.504-511 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 504-511 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 504-511 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42819/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10951 2016-05-04T09:08:33Z presipitasi:RVA

MODEL NUMERIK 2-D (LATERAL & LONGITUDINAL) SEBARAN POLUTAN CADMIUM(Cd) DI MUARA SUNGAI (STUDI KASUS: MUARA SUNGAI BABON, SEMARANG) Zaman, Badrus Syafrudin, Syafrudin Environmental Engineering Cadmium, Pollutant spread, Estuarine, Numerical model, Finite difference Estuary of River Babon very influenced by condition around its drainage basin. estuary of River Babon  also have  function  as  a  channel  of  waste  disposal  from  Terboyo  Industrial  Park, Semarang ( KITS). Cadmium ( Cd) as one of heavy metal pollutant and conservative element will certainly spread at estuarine. Based on research at the time of measurement, known that by the  content  of  Cd  at  estuary of  river  Babon  equal  to  (  0,009  -  0,017)  mg  /  l,  where  the concentration have exceeded the Quality of Water Go out to sea for the Biota of Go out to sea that  is  equal  to  0.001  mg  /  l  (Kep Men LH  No.  51  tahun  2004).    Study  about  disseminating polutan  at  estuarine  can  be  conducted  by using  model    because  by  using  model  can  be knowable  how  disseminating  polutan  accurately, quickly  and  cheap  so  that  picture  from  the model can be made basis for furthermore management. Model developed with numerical 2-D model ( lateral & longitude). Model developed by using equation on the basis of hydrodynamics process  and  conservative  transpor  polutan.  The  equation  finished  by numerik  by  using differential method ( finite difference). The result from developed model for the time of t = 1 hour obtained value with 3.028% mistake from field data. Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10951 10.14710/presipitasi.v3i2.1-8 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 1-8 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 1-8 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10951/8642

oai:ojs.ejournal.undip.ac.id:article/56555 2024-06-14T22:00:52Z presipitasi:RCS

Hotspot Distribution Analysis as Forest and Land Fire Indicators in the New National Capital City (IKN) Kumalawati, Rosalina Yuliarti, Astinana Raharjo, Jany Tri Rijanta, Rijanta Susanti, Ari Saputra, Erlis Wahyu Budiman, Puput Aris Pratomo, Rahmat Hendra Murliawan, Karnanto Putra Danarto, Wisnu Anastasia Muhtar, Ghinia Nurita Anggraini, Rizki Geography; Remote Sensing; Environment science, Pollution, Hotspot distribution; S-NPP VIIRS; indicators; forest; land fires. East Kalimantan Province is planned as the new national capital city (IKN). Forest and land fires occur regularly every year and their frequency is increasing, especially during the dry season. This research uses secondary data, namely hotspot data. Hotspot data was obtained from the results of the 2012-2022 S-NPP VIIRS image recording. Data analysis in this study used descriptive and statistical analysis. The results of processing and analysis of the distribution of hotspots are overlaid with administrative maps so that the distribution of hotspots in each district in the study area can be identified. The results of the study show that hotspots distribution from the 2012-2022 S-NPP VIIRS image recording in East Kalimantan Province is varies quite a bit in each district. The highest hotspots distribution is in Kutai Kartanegara Regency and the lowest is in Mahakam Ulu and Penajam Paser Utara Regency. The higher number of hotspots is the higher incidence for forest and land fires. The distribution of hotspots needs to be known because it can be a form of early detection and fire mitigation so that the negative impact of fires can be minimized. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56555 10.14710/presipitasi.v20i3.691-703 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 691-703 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 691-703 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56555/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/23731 2020-08-30T23:24:01Z presipitasi:RSA

The Use of Nano-Bio Coagulant from Rice Snail (Pila Ampullacea) Shells to Reduce COD, Turbidity, and TSS of Pharmaceutical Industry Wastewater Penggunaan Nano-bio Koagulan dari Cangkang Keong Sawah (Pila ampullacea) untuk Menurunkan COD, Kekeruhan, dan TSS Limbah Cair Industri Farmasi Hadiwidodo, Mochtar Ainurrofiq, Mohammad Naffah Purwono, Purwono Oktiawan, Wiharyanto Teknik Lingkungan nano biokoagulan, Pila Ampullacea, pharmaceutical wastewater, coagulation, flocculation Teknik Lingkungan nano-bio coagulant, Pila ampullacea, pharmaceutical waste water, coagulation, flocculation Salah satu industry farmasi di Semarang, Jawa Tengah menggunakan koagulan Poly Alumunium Chloride (PAC) untuk mengolah limbah cair. Penggunaan PAC atas dasar kelayakan biaya dan efektivitas pengolahan. Apabila ditinjau dari aspek lingkungan, penggunaan koagulan sintetik dalam jumlah besar akan menimbulkan limbah lumpur yang sulit didegradasi, dan mampu mengubah tingkat keasaman air dan tanah disekitarnya, sehingga berdampak buruk bagi lingkungan. Pada penelitian ini kitosan digunakan sebagai nano bio koagulan untuk mengolah limbah cair industri farmasi. Variasi dosis nano bio koagulan dan kecepatan pengadukan dilakukan untuk mengevaluasi efisiensi penyisihan parameter Chemical Oxygen Demand (COD), kekeruhan, dan Total Suspended Solid (TSS), limbah. Nani bio koagulan dibuat dari Cangkang keong Sawah (Pila Ampullacea) dan ukuran biokoagulan dibuat skala  nano partikel dengan harapan mampu meningkatkan efektifitas penyisihan. Metode persiapan berupa deproteinasi, demineralisasi dan deasetilasi. Proses nano partikel menggunakan alat HEM, ukuran partikel diuji menggunakan SEM dan uji gugus fungsi menggunakan FTIR. Hasil penelitian menunjukkan bahwa kitosan memiliki warna coklat abu-abu, ukuran partikel serbuk nano, kadar air 5,34 %, kadar abu 1,14 % dan derajat deasetil 25,27 %. Efisiensi penyisihan TSS yang tinggi sebesar 55,19 %, kekeruhan 64,73 % dan COD 55,63 %. Dosis yang optimum sebesar 200 mg/L dengan kecepatan pengadukan cepat 150 rpm. Nano biokoagulan kitosan paling efektif untuk menyisihkan kekeruhan dibandingkan dengan COD dan TSS limbah cair indutri farmasi. One of the pharmaceutical industry in Semarang, Central Java uses the coagulant Poly Aluminum Chloride (PAC) to treat wastewater. The use of PAC on the basis of the feasibility of cost and processing effectiveness. When viewed from an environmental aspect, the use of synthetic coagulants in large quantities will cause sludge waste that is difficult to degrade, and is able to change the acidity of the surrounding water and soil, thus adversely affecting the environment. In this study, chitosan was used as a nano-bio coagulant to treat pharmaceutical industry wastewater. Dose variations of nano-bio coagulant and mixing rate were carried out to evaluate the efficiency of removal of parameters of Chemical Oxygen Demand (COD), turbidity, and Total Suspended Solid (TSS) of waste. Nano-bio coagulant is made from rice field snail shells (Pila Ampullacea), and the size of the bio coagulant is made of nanoscale particles with the hope of being able to increase the effectiveness of allowance. Preparation methods include deproteination, demineralization, and deacetylation. Nanoparticle process using HEM tool, particle size was tested using SEM and functional group test using FTIR. The results showed that chitosan had a gray-brown color, nanopowder particle size, the water content of 5.34%, 1.14% ash content, and 25.27% deacetyl degree high TSS removal efficiency of 55.19%, the turbidity of 64.73% and COD of 55.63%. The optimum dose is 200 mg / L with a fast mixing speed of 150 rpm. Nano the most effective chitosan bio coagulant for removing turbidity compared to TSS and COD Universitas Diponegoro 2019-11-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/23731 10.14710/presipitasi.v16i3.133-139 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 133-139 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 133-139 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/23731/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/70594 2025-12-04T00:06:42Z presipitasi:RVA

Corporate Responsibility for Water Disclosure in Improving Environmental Transparency: A Case Study of ASEAN Countries Putri, Tiara Tirta Andrissa Wahyuningrum, Indah Fajarini Sri Solikhah, Badingatus Accounting; Environmental Disclosure; Sustainability Reporting Corporate governance; CSR committee; profitability; company size; water disclosure This study analyzes water disclosures by leading ASEAN manufacturing firms regarding corporate social responsibility (CSR). The ASEAN region faces considerable environmental challenges, especially in managing water resources, which are increasingly critical owing to the rapid growth of manufacturing sector companies. Purposive sampling was used to analyze 176 secondary data units from sustainability and annual reports of companies listed on the stock exchanges of Indonesia, Malaysia, Singapore, Thailand, and the Philippines between 2020 and 2023. The variables studied include gender diversity, board meeting frequency, government ownership, profitability, and company size. The results show that only gender diversity significantly affects the exposure to water. Moderation regression analysis indicates that the CSR Committee strengthens the influence of company size but weakens the influence of other variables. This study makes a theoretical contribution by offering actual data on the intricate function of the CSR Committee in reducing the impact of corporate governance traits on water disclosure. The practical implication is that companies can improve the effectiveness of CSR committees, and the government can formulate policies that encourage sustainable water management through good corporate governance. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70594 10.14710/presipitasi.v22i2.633-646 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 633-646 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 633-646 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70594/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46743 2023-03-29T21:11:54Z presipitasi:RCS

Planning of Conventional Air Emission Reduction Strategy from the Transportation, Domestic, and Solid Waste Sector in Salatiga City Samadikun, Budi Prasetyo Hardyanti, Nurandani Wijayanti, Dea Sa'adah, Zumrotus Conventional air emission; reduction strategy; transportation; domestic; solid waste In 2020 Salatiga City has a population of 192,322 people with a population growth rate of 1.18%. The increase in population causes an increase in consumption needs, waste generation, and the number of vehicles due to increased population mobility. The purpose of this plan is to take an inventory of conventional air emissions in the transportation, domestic, and waste sectors and to plan strategies to reduce conventional air emissions in Salatiga City. The transportation sector emissions inventory is calculated using the Tier 2 method, while the domestic and solid waste sectors are calculated by multiplying activity data by emission factors. In the calculation of the capacity, the box model method is used and the SWOT analysis is used to determine the emission control strategy. The results of the inventory of conventional air emissions in the transportation sector for SOx are 121.06 tons/year, NOx is 2,615.51 tons/year, CO is 18,040.89 tons/year, and PM10 is 299.66 tons/year. Meanwhile for the domestic sector, SOx is 0 kg/year, NOx is 14,755.53 kg/year, CO is 4,070.86 kg/year, and PM10 is 190,326 kg/year. Then from the solid waste sector, SOx emissions were 3,653,071.85 g/year, NOx was 21,918,429.85 g/year, CO was 306,858.017.94 g/year, and PM10 was 219,184,298.53 g/year. . The results of the capacity calculation show that the City of Salatiga can still accommodate conventional air emissions for SOx, NOx, CO, and PM10. However, a reduction strategy is still needed to control air pollution. The strategic plan used is an increase in green open space by 20%, the development of an Intelligent Transportation System, emission testing of private vehicles, the substitution of LPG with biogas from organic waste and livestock manure, as well as community development for waste reduction and optimization of waste facilities. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46743 10.14710/presipitasi.v19i2.262-270 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 262-270 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 262-270 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46743/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/57209 2025-05-18T20:36:13Z presipitasi:RCS

Analysis of Solid Medical Waste Management at X Hospital, West Sumatra Israr, Puti Shakila Audhisa Mawaddah, Nurul Alam, Firdha Cahya Teknik Lingkungan; Pengelolaan Limbah dan Kualitas Udara Management; generation; solid medical waste; hospital X Hospital is one of the referral hospitals for handling COVID-19 patients, with 2,347 positive confirmed cases on November 12, 2021, which caused an increase in solid medical waste in 2022. Because solid medical waste has hazardous characteristics, there's an urgency to give more attention to potential risks. The impact can be reduced through proper waste management, starting with the waste stack. This study aims to identify sources and characteristics, waste stack, and implementation of solid medical waste management at X Hospital. This study uses quantitative and qualitative descriptive analysis, primary and secondary data collection, observation, interviews, and measurement of solid medical waste by SNI-19-3964-1994. The results found that solid medical waste originates with three characteristics of waste, the average stack generated is 56.53 kg/day, and the correlation between patients and solid medical waste obtained a Spearman rank correlation (r) value of 0.851 with a very strong correlation. Implementing solid medical waste management at X Hospital refers to applicable regulations with a percentage of good 80%. Sorting decomposing 82.5%, container 76%, collection 73%, storage 85%, and external transportation 100%. However, several indicators must be improved to comply with applicable regulations, especially minimization, container, collection, and storage. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57209 10.14710/presipitasi.v21i1.210-222 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 210-222 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 210-222 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57209/xml Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/30907 2020-12-16T21:04:21Z presipitasi:RSA

Dinamika Karbon dan Mikroba dalam Tanah pada Perlakuan Biochar Kompos Plus Carbon and Microbial Dynamics in Soil on Biochar Compost Plus Treatment Purbalisa, Wahyu Zulaehah, Ina Paputri, Dolty Melyga W. Wahyuni, Sri Ilmu Lingkungan karbon tanah; mikroba; dinamika Environmental Science soil carbon; microbes; dynamics Karbon dan mikroba dalam tanah mengalami fluktuasi dari waktu ke waktu disebabkan oleh berbagai hal. Penelitian ini bertujuan untuk mengetahui dinamika karbon dan mikroba dalam tanah pada perlakuan biochar-kompos plus. “Plus” disini mewakili penggunaan biochar-kompos dengan nano biochar dan adanya pengayaan terhadap mikroba konsorsia. Penelitian dilakukan di rumah kasa menggunakan rancangan acak lengkap dengan 3 ulangan dengan perlakuan sebagai berikut : kontrol/tanpa pupuk organik (P0), kompos (P1), biochar-kompos 1:4 (P2), nano biochar-kompos 1 : 4 (P3), nano biochar-kompos + mikroba konsorsia (P4), kompos + mikroba konsorsia (P5) dan  biochar-kompos + mikroba konsorsia (P6) dengan dosis masing-masing 2,5 ton/ha. Biochar berasal dari tongkol jagung. Aplikasi biochar kompos plus dilakukan sebelum tanam. Parameter yang diamati yaitu karbon tanah (C-organik), dan kemasaman tanah (pH) pada 7 HSA, 37 HSA dan setelah panen serta total populasi mikroba tanah pada 2 HSA dan setelah panen. Karbon tanah diukur menggunakan metode Walkey and Black diukur dengan spektrofotometer, pH tanah menggunakan rasio tanah : air = 1 : 5 dan diukur dengan pH-meter, total populasi mikroba menggunakan metode Total Plate Counting (TPC). Hasil penelitian menunjukkan karbon dan populasi mikroba tanah mengalami penurunan dari waktu ke waktu, kecuali untuk populasi mikroba pada perlakuan kompos tunggal. Carbon and microbes in the soil fluctuated from time to time due to various things. This study aims to determine the dynamics of carbon and microbes in the soil in the treatment of biochar-compost. In addition to the use of biochar-compost, this research also uses nano biochar and enrichment with microbial consortia. The study was conducted at the screen house using a complete randomized design with three replications with following treatments: control / without organic fertilizer (P0), compost (P1), biochar-compost 1: 4 (P2), nano-biochar-compost 1: 4 (P3 ), biochar-compost + microbial consortia (P4), compost + microbial consortia (P5) and biochar-compost + microbial consortia (P6) with a dose of 2.5 tons/ha respectively. Biochar comes from corncobs. Compost biochar plus application was made before planting.  Parameters observed were soil carbon (C-organic), soil acidity (pH) at 7 DAA, 37 DAA and after harvest, and the total soil microbial population at 2 DAA and after harvest. Soil carbon was measured using Walkey and Black method measured by spectrophotometer, soil pH using a soil: water ratio = 1: 5 and measured by a pH meter, the total microbial population using Total Plate Counting (TPC) method. The results showed carbon and soil microbial populations decreased over time, except for microbial communities in a single compost treatment. Universitas Diponegoro 2020-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/30907 10.14710/jis.%v.%i.%Y.%p Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 138-143 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 138-143 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/30907/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/75558 2025-12-13T04:17:17Z presipitasi:RSA

Effect of Floating Plants on Constructed Wetland Microbial Fuel Cell Treating Domestic Wastewater Wahyuni, Afrinda Dwi Yuniarto, Adhi Arliyani, Isni Min, Booki Bioelectricity production; constructed wetland–microbial fuel cell; phytoremediation Sustainable domestic wastewater treatment is urgently needed amid water scarcity and rising energy demands. The Constructed Wetland–Microbial Fuel Cell (CW-MFC) system integrates phytoremediation and bioelectricity production by electroactive microorganisms, yet previous studies rarely compared the synergistic effects of different plant species within this system, limiting its optimization. This study evaluated CW-MFC performance using three plant configurations (Pistia stratiotes, Eichhornia crassipes, and their combination) integrated with Lactobacillus plantarum at two concentrations (2×10⁸ CFU/mL and 5×10⁸ CFU/mL). The reactors were operated for 18 days under identical hydraulic conditions to assess BOD, COD, ammonia, and TSS removal efficiencies and power density generation. Results showed that Eichhornia crassipes achieved the highest pollutant removal efficiencies with COD reduction up to 82%, while the system with 2×10⁸ CFU/mL bacterial concentration produced the highest power density of approximately 1032 mW/m². Interestingly, lower bacterial concentrations yielded higher power outputs, possibly due to reduced microbial competition for electron transfer sites, enhancing electroactive bacteria performance. In conclusion, integrating Eichhornia crassipes with L. plantarum at 2×10⁸ CFU/mL optimizes both pollutant removal and bioelectricity production, confirming CW-MFC as an environmentally friendly technology with potential for sustainable wastewater treatment and renewable energy generation.  Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/75558 10.14710/presipitasi.v22i3.980-992 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 980-992 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 980-992 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/75558/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46643 2023-01-04T02:30:50Z presipitasi:RCS

Soil Quality Index Mapping Using GIS and Sentinel-2 Image in Jember, East Java Sari, Putri Tunjung Indarto, Indarto Mandala, Marga ilmu lingkungan Soil degradation; soil quality index; mapping; irrigated paddy Soil is a solid mineral and organic matter from weathering rocks over the years. The current condition shows many productive lands that are of low quality. Soil quality must be a top priority in land management efforts to support the sustainability of ecology. This study proposes to soil quality index (SQI) assessment of paddy fields in Jember Regency, Indonesia, using the principal component analysis (PCA) method based on spatial data. The research procedure consists of (1) making land units, (2) soil sampling, (3) laboratory analysis, (4) principal component analysis (PCA), (5) assessment of soil quality index (SQI), and (6) Thiessen polygon analysis. The correlation results show the average correlation value < 0.5 (not significant). The soil quality is determined by three main components: total P, silt fraction, and clay fraction. The results of the soil quality analysis showed that 68,888 Ha was in the very low-quality category, and 39,948 Ha was in the low-quality category. Meanwhile, paddy fields included in the medium category are only 3,513 Ha. The addition of organic matter can improve the quality of paddy fields. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46643 10.14710/presipitasi.v19i3.566-577 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 566-577 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 566-577 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46643/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11014 2016-05-05T01:28:38Z presipitasi:RVA

EVALUASI DAN OPTIMALISASI INSTALASI PENGOLAHAN LUMPUR TINJA KABUPATEN KARANGANYAR Oktiawan, Wiharyanto Nugraha, Winardi Dwi Environmental Engineering Septage treatment facility, septage, management system, optimalization . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11014 10.14710/presipitasi.v5i2.68-75 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 68-75 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 68-75 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11014/8698

oai:ojs.ejournal.undip.ac.id:article/63672 2025-05-18T20:37:10Z presipitasi:RCS

Green Hospital Implementation in Dr. Cipto Mangunkusumo National Central Public Hospital Dzikriyati, Nadiva Raharjo, Mursid Nurjazuli, Nurjazuli Subagyo, Baji Hashim, Jamal Hisham Enviromental Health Green hospital; water; energy; regulation; waste; environmental health Every day, hospitals carry out various health services and administrative activities constantly, so therefore hospitals are expected to reduce negative impacts on the environment by creating green hospitals. Green hospitals are hospitals that are designed, built, renovated, operated, and maintained by considering health and environmental development principles. This research used qualitative and quantitative methods. The qualitative method used is a case study method in the form of in-depth exploration from various perspectives related to the uniqueness of the green hospital system based on evidence obtained at the research location.  The quantitative method was carried out using a descriptive method in the form of simple statistics to describe the extent of green hospital achievements at Cipto Mangunkusumo General Hospital. The types of data collected are primary data from observation and in-depth interviews and secondary data from document review results. Implementation of green hospital in RSUPN Dr. Cipto Mangunkusumo, from 93 indicators 84,9% or 79 indicators are accomplished in RSUPN Dr. Cipto Mangunkusumo. The indicators with the most presentation are location and landscape, hopitals’ structure, Water efficiency, food processing, and air quality with 100% percentage. And the indicator with the least presentation are energy efficiency with 64,3% percentage.  Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63672 10.14710/presipitasi.v21i2.598-608 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 598-608 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 598-608 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63672/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/36086 2022-02-16T03:29:41Z presipitasi:RSA

Biofilm Formation and Bio Corrosion of Carbon Steel in Diesel-Biodiesel Storage Tank Ramadhani, Aida Nur Harimawan, Ardiyan Devianto, Hary Chemical Engineering bacillus megaterium, biocorrosion, biodiesel, biofilm, blended fuel Biodiesel is potential to blend with petroleum diesel as an alternative blended fuel. Biodiesel is usually stored in carbon steel storage tank which easily corroded by microorganisms. Microorganisms can use blended fuels as carbon source and water from biodiesel which is hygroscopic for growth and metabolism. Thus, degradation of fuel may occur and lead to biocorrosion by microorganisms such as Bacillus megaterium. This research was conducted to determine the effect of biodiesel concentration of blended fuel on biofilm formation and biocorrosion by Bacillus megaterium. The experiments were carried out by immersing carbon steel specimens in immersion medium for 21 days with variation of biodiesel concentration (B0, B20, B30, and B100). Biofilms that form on the metal surface cause areas with non-uniform oxygen concentrations and form anodic/cathodic conditions, raised to potential differences and biocorrosion occurred. The average corrosion rates were 0,035 ± 0,03; 0,533 ± 0,33; 0,642 ± 0,28; 0,109 ± 0,04 mm/year achieved by B0, B20, B30 and B100 respectively. These rates increased when compared to the control medium. Microorganism activity also caused damage to the metal surface by forming pitting corrosion on B30 and B100. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36086 10.14710/presipitasi.v18i1.45-55 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 45-55 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 45-55 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36086/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4807 2013-05-14T23:21:12Z presipitasi:RVA

MODEL PERENCANAAN DAN PENGELOLAAN LINGKUNGAN BERBASIS MASYARAKAT KASUS : BENTANGLAHAN KAWASAN TEMBALANG SEMARANG Samadikun, Budi Prasetyo Sudibyakto, Sudibyakto Setiawan, Bakti Rijanta, Rijanta Environmental Engineering; Environment model, guidance, prediction, simple One of mayor requirement in environmental system planning and management is to predict the condition  in  the  future.  Model  can  be  used  to  simplified  the  prediction  and  arrangement  of anything.  There  are  four  steps  as  a  guidance  for  making  a  model,  i.e.:  model  formulation, parameter identification, parameter estimation, and model validation. The result being expected after applying those four steps is a good model that consistent with study objective, simple, and applicable. Universitas Diponegoro 2012-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4807 10.14710/presipitasi.v9i1.17-20 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 1 (2012): Vol 9, No 1 (2012); 17-20 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 1 (2012): Vol 9, No 1 (2012); 17-20 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4807/4357

oai:ojs.ejournal.undip.ac.id:article/52113 2023-04-08T21:36:46Z presipitasi:RSA

Inventories of Methane Emission for Enteric and Decomposition Gasses from Cattle Manure and Its Mitigation Strategies Devitriano, Dodi Syarifuddin, Hutwan Jalius, Jalius Wibowo, Yudha Gusti Ilmu Lingkungan; Teknik Lingkungan Methane emission; global warming; climate change; dairy cattle emission Livestock is a significant contributor to global methane (CH4) emissions, accounting for 18% to 51% of total emissions worldwide. The purpose of this study is to estimate the CH4 emissions from livestock in Jambi Province, using the Tier-1 method recommended by the Intergovernmental Panel on Climate Change (IPCC). The results show that CH4 emissions range from 7,464,728 to 7,833,349 tons per year, with feces management contributing 160,261 to 166,667 tons per year, and buffalo enteric emissions contributing 2,511,135 to 2,616,185 tons per year. These findings highlight the significant impact of the livestock sector in Jambi Province on global warming. Moreover, this study presents a brief overview of mitigation strategies that can be implemented to reduce CH4 emissions from the livestock sector. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52113 10.14710/presipitasi.v20i1.196-207 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 196-207 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 196-207 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52113/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/16385 2020-04-17T11:35:17Z presipitasi:RSA

Efektivitas Teknik Biofiltrasi Dengan Media Sarang Tawon Terhadap Penurunan Kadar Nitrogen Total Limbah Cair Sali, Gea Paramudhita Suprabawati, Anggi Purwanto, Yuli Kimia; lingkungan chemistry; environment Berdasarkan regulasi PERMEN LH No. 5 Tahun 2014 Lampiran XLVII yang mengatur bahwa setiap limbah cair industri harus memenuhi baku mutu yang dipersyaratkan, maka telah dilakukan penelitian dalam upaya untuk memperoleh suatu sistem pengolahan air limbah yang cukup sederhana yang dapat diterapkan di industri-industri kecil. Penelitian dilaksanakan dengan melakukan pengolahan limbah yang mengandung nitrat (NO3), nitrit (NO2), dan ammonia (NH3)  dengan menerapkan sistem nitrifikasi biologis yang menggunakan reaktor biofilter tercelup menggunakan media sarang tawon. Pemilihan sistem ini karena telah diketahui cara biologis adalah cara yang paling ekonomis dan reaktor biofilter tercelup merupakan sistem yang mudah dioperasikan dengan hasil yang cukup maksimal. Hasil penelitian diperoleh efektivitas penurunan kadar nitrit (NO2) sebesar 97,23%, kadar ammonia (NH3) sebesar 85,80%, kadar N-total sebesar 43,65% dan kenaikan kadar nitrat (NO3) sebesar 21,92%, dengan waktu tinggal optimal selama 6-7 hari. Hal ini terjadi karena adanya bakteri pengurai yang melekat pada media sarang tawon yang dapat merombak senyawa-senyawa nitrogen. Universitas Diponegoro 2018-03-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16385 10.14710/presipitasi.v15i1.1-6 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 1-6 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 1-6 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16385/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/16385/1863 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/62004 2025-12-04T00:06:38Z presipitasi:RSA

Eco Literacy in Z Generation Regarding Waste Management as a Critical Dimension of Sustainable Urban Green Space Purwono, Purwono Setiyaningrum, Ika Feni Silviani, Wahyu Dian Fatmawati, Puput Yosi Adji, Diva Permata ilmu lingkungan Urban green space; volunteer; internet literacy; waste management Green spaces will only be adequately maintained with the active support of residents. Eco-literacy in the Z generation is essential in encouraging the behavior of those who care about the environment. The research was conducted using quantitative methods by sending questionnaires to Z-generation respondents. The questionnaire uses Likert scale including indicators scientific integration, program sustainability, internet literacy, the importance of waste management, concerns about waste, and volunteers. The majority of Z generation agrees that scientific integration educates them about environmental challenges and waste management. Concerning programmed sustainability, they are neutral about waste management programmed in schools. They appreciate environmental issues and try to educate the people using the internet. They feel good waste management will affect the environment, agree that Z generation is concerned about waste, and volunteer extensively for the environment.  Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62004 10.14710/presipitasi.v22i1.59-68 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 59-68 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 59-68 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62004/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/40978 2022-02-19T00:21:43Z presipitasi:RSA

The Use of Lumbricus Rubellus Earthworm Effect in Composting Process of Musa Paradisiaca L. Peel Waste Siswanto, Vely Kukinul Setiani, Vivin Nindyapuspa, Ayu Kurniawati, Ummi Fadlilah Kamilah, Mutiara Mayang Teknik Lingkungan Environmental Engineering Conventional organic waste composting is one of the processing of organic waste that produces fertilizer. However, the conventional composting process for organic waste lasts 1-3 months. Vermicomposting is composting that lasts a short time, and in addition, vermicomposting produces compost and worms with a high selling value. So, in this study, Musa Paradisiaca L (MPL) peel and sawdust waste were composted using the vermicomposting method into compost. The primary data in this study consisted of monitoring the C/N ratio, temperature, pH, moisture content, texture, the particle size of compost for 3 weeks of the composting process. Testing the analysis of the effect of using Lumbricus Rubellus (LR) earthworms in the composting process of MPL peel waste and sawdust by using LR earthworms. The study results showed that LR worms had no effect on temperature, pH, water content, and C/N ratio during the composting process of MPL peel waste but did affect the texture, particle size, and product of compost weight. pH, moisture content, and temperature of compos with adding LR earthworms and without LR worms was 7, less than 50%, 27-29 0C, respectively.  The C/N ratio of compost that uses LR earthworms was 28, while the C/N ratio of composting that uses LR earthworms was 33. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/40978 10.14710/presipitasi.v18i3.423-432 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 423-432 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 423-432 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/40978/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/40978/9112 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/40978/9113 Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10942 2016-05-03T20:04:31Z presipitasi:RVA

STUDI PENGELOLAAN LIMBAH PABRIK GULA (STUDI KASUS PABRIK GULA PT. KEBON AGUNG DI TRANGKIL PATI) Syafrudin, Syafrudin Astuti, Arieyanti Dwi Environmental Engineering solid waste, composting process, biostarnio activator Solid waste from sugar cane which are familiar to call “blotong” and “ketel” dust is potentially to compost. In the composting process, biostarnio activator is added to increase the composting process. The composting process take + 22 days to produce mature compost and the product has been met the SNI 19 7030-2004, which are N 1,37%;  P 2 O 5  1,81%; K 2 O 2,22%; Fe 0,49%; Ca 2,56%; MgO 0,53%; Mn 0,03%; pH 7,1; Zn 80,99 ppm; Cu 44,01 ppm; C organic 16,48%; C/N ratio 12,03 %. Universitas Diponegoro 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10942 10.14710/presipitasi.v2i1.25-27 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 25-27 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 25-27 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10942/8633

oai:ojs.ejournal.undip.ac.id:article/56216 2024-06-14T22:00:52Z presipitasi:RCS

Analysis of Community-Based Waste Management through Waste Bank in Tinjomoyo Urban Village, Semarang City, Central Java Anam, Sarful Siwiendrayanti, Arum Waste, waste bank, landfill, waste management Waste is a problem that, until now, has been difficult for the Indonesian government to solve. The emergence of waste banks can make people aware of the need to manage waste properly. The community eventually became more educated about managing and sorting household waste. The household waste consists of used cardboard, used plastic drink bottles, used shoes, and other used items. If waste banks exist in a community and whether they have an impact on that community or other "aspects" is a question unto itself. This study aims to see the impact of waste banks on the community and help local governments realize effective waste bank management. The type of research used in this study is observational-descriptive research. In addition, interviews were also conducted with waste bank administrators, and questionnaires were distributed to waste bank customers. The data was analysed with simple quantitative descriptive. The results of this study reveal the underlying aspects of the establishment of a waste bank in Tinjomoyo Urban Village and the impact of the waste bank on the surrounding community, especially on waste bank customers. As a result, some people feel a positive impact from the waste bank in Tinjomoyo Urban Village. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56216 10.14710/presipitasi.v20i3.590-601 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 590-601 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 590-601 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56216/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/24658 2020-04-17T11:39:00Z presipitasi:RVA

Simple Technology to Convert Coconut Shell Waste into Biochar; A Green Leap Towards Achieving Environmental Sustainability Wibowo, Yudha Gusti Ramadan, Bimastyaji Surya Andriansyah, Muhammad Environmental Studies Coconut shell, biochar, environment, environmental sustainability. Pyrolysis is a technology to convert biomass into high-value product such as biochar. Biochar is a bio-based material as well as char that can maintain soil, water and air quality. Biochar can produced by all of plant parts and generated directly from pyrolysis for a few hours in a certain temperature. The quality of biochar production is highly dependent on the pyrolysis temperature, heating rate, particle size, type, and composition of feedstock and reactor conditions. Several study inform that biochar produced by high temperature such as furnace. Application of biochar in soil can solve contaminated soil from pollutants such as toxic metals contamination, low pH issues and degradable soil caused by industrial activities. Therefore, the application of biochar in water ecosystem can solve some problems such as reduce toxic metals content in wastewater. Biochar known can give significant impact to reduce global warming through the reduction of greenhouse gas emissions and the sequestering of atmospheric carbon into soil. This condition is a problem for several areas especially rural area in developing countries. This paper will describe clearly how to produce biochar use simple technology. Thus, this paper will provide useful information for reducing environmental problems especially on rural areas. Universitas Diponegoro 2019-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24658 10.14710/presipitasi.v16i2.58-64 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 58-64 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 58-64 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24658/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/69810 2025-12-04T00:06:42Z presipitasi:RCS

Evaluating Household Solid Waste Sampling: Is an Eight-Day Consecutive Method Necessary? A Preliminary Study Pratama, Mochamad Adhiraga Wahyuningsih, Ni Putu Sri Putri, Naila Syafiya Municipal waste; sampling method; days required; data experiment Household solid waste sampling is a critical part of solid waste management planning, as the results determine the design of the required infrastructure. However, the method suggested by the Indonesian national standard requires time and high costs, as it must be carried out for eight consecutive days. Hence, it is necessary to evaluate this requirement and design a more efficient sampling design without compromising the results. The study conducted solid waste sampling for 16 consecutive days from 31 middle-income households in Jakarta, the Capital City of Indonesia, resulting in a pool of 16 consecutive daily averages of solid waste generation per capita data. From this pool, we generated: (1) solid waste generation per capita from eight consecutive days, (2) six consecutive days, (3) four consecutive days, and (4) eight non-consecutive days data. The results showed that the average of solid waste generation per capita for datasets (1), (2), (3), and (4) are 0.505 (± 0.022) kg/day/cap, 0.495 (± 0.044) kg/day/cap, 0.501 (± 0.035) kg/day/cap, and 0.492 (± 0.02) kg/day/cap consecutively, indicating the same estimates of solid waste generation per capita can be achieved by four scenarios. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69810 10.14710/presipitasi.v22i2.497-509 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 497-509 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 497-509 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69810/pdf_1 Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/45979 2022-12-14T20:16:03Z presipitasi:RCS

Measuring the Effect of Kampong AMOI Program on Sustainability Factors using Social Return on Investment Method: A Case Study of Riding Panjang Village, Bangka Barat Suryani, Retno Silfiana, Andriani Lathifah, Nurul Ikhlas, Nurani Kampong AMOI; social impact assessment; SROI; sustainability The Kampong AMOI (Integrated Agro-Independent) Program is a community empowerment program carried out by PT Timah Tbk Metallurgical Unit Muntok. This community empowerment was carried out in Riding Panjang Village, Merawang District, Bangka Regency, Air Putih Village, Tanjung Village, Muntok District, and West Bangka Regency. This program integrates three activities, namely nursery perennials, composting, and broiler cultivation. The Kampong AMOI program has a significant impact on the economic and environmental development of the three villages. Therefore, in this paper, the results of the program impact will be analyzed using the evaluative social return on investment (SROI) method. This study aims to comprehensively evaluate, measure, and calculate the impacts of the program's implementation from the environmental, economic, welfare, and social aspects. The Kampong AMOI Community Empowerment Program (Integrated Agro-Independent Village) results have an SROI value of 2.518. This result shows that every IDR 1 invested has a benefit or impact value of IDR 2.518. This result also concludes that the Kampong AMOI program is reasonable to be conducted in Riding Panjang Village, Air Putih Village, and Tanjung Village. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45979 10.14710/presipitasi.v19i1.190-198 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 190-198 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 190-198 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45979/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10973 2016-05-05T04:32:12Z presipitasi:RVA

POLA PENYEBARAN LIMPASAN LOGAM LINDI TPA JATIBARANG PADA AIR SUNGAI KREO Oktiawan, Wiharyanto Priyambada, Ika Bagus Environmental Engineering Leachate, heavy metal, Fe, Mn, Cr, exposure assesment . Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10973 10.14710/presipitasi.v4i1.56-61 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 56-61 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 56-61 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10973/8664

oai:ojs.ejournal.undip.ac.id:article/73060 2025-12-13T04:17:17Z presipitasi:RCS

Mapping the Potential of Organic Waste as a Bioconversion Substrate for Black Soldier Fly Larvae (BSFL) in Surabaya City and Sidoarjo Regency Fitriana, Aulia Rodlia Bagastyo, Arseto Yekti Warmadewanthi, IDAA Hanh, Dang Vu Bich Ursada, Riang Teknik Lingkungan; ilmu Lingkungan; Rekayasa Ilmu Lingkungan; Teknik Penyehatan Bakery waste; bioconversion; Black Soldier Fly; market waste; rejected products Waste management remains a critical challenge in Indonesia, particularly in urban areas. Bioconversion using Black Soldier Fly Larvae (BSFL) presents a sustainable solution for transforming organic waste into high-value biomass rich in protein and fat. The objective of this study was to investigate the potential utilization of organic waste from markets, bakeries, and rejected products from the food and beverage (F&B) industry (specifically creamer and milk), as BSFL substrates, while mapping the existing bioconversion sites. Data was collected through interviews, observations, and field measurements. Primary data included location details, technical specifications, implementation constraints, and BSFL bioconversion sites. Waste composition was analyzed via Loud Count Analysis during a 4-day sampling period. This research was conducted in Surabaya City and its surroundings. The results indicate that market waste mostly consists of dark green vegetables (26.5%), other vegetables (64.1%), and year-round fruits (53.9%). Furthermore, the daily average rejected bread is 2.6-2.7 kg. Rejected foods and beverages include creamers, liquids, and sweetened condensed milk. The facility processes 16.16 tons/day of substrate potential, producing 44.61 tons fresh larvae and 53.85 tons frass, with profits of IDR 58.1-969.6 million. The findings demonstrate significant potential for utilizing local organic waste as BSFL substrates in the study area. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/73060 10.14710/presipitasi.v22i3.865-880 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 865-880 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 865-880 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/73060/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46683 2023-03-29T21:11:54Z presipitasi:RSA

Environmental Performance with Firm Size as an Intervening Variable Hidayah, Retnoningrum Wahyuningrum, Indah Fajarini Sri Suryandari, Dhini Suryarini, Trisni Yanto, Heri Dinassari, Rahayu Rahayu, Rita Fakultas Ekonomi; manajemen lingkungan; Kinerja Lingkungan Audit committee; firm size; environmental performance; type of industry Environmental performance is significant in today's era. However, the high operational activity of the company has harmed the environment. This study examines the type of industry (TI) and the audit committee (AC) on environmental performance (EP). In addition, this paper uses firm size (FS) as an intervention.  The research uses 198 units of analysis. The results show that the audit committee and firm size affected environmental performance. The type of industry and audit committee affect the firm size. Furthermore, firm size can mediate the relationship of the audit committee to environmental performance. However, the type of industry does not affect environmental performance. Therefore, firm size cannot mediate the relationship between the type of industry and environmental performance. Therefore, the company has to enhance the audit committee's role. Furthermore, the government should enforce regulations related to environmental performance, especially Law No. 32 of 2009 concerning the Protection and Management of the Environment, that all forms of environmental pollution carried out by individuals, corporations or officials can be subject to criminal sanctions. This study has limitations, only focusing on companies listed in the PROPER ranking. Future research could use all companies in many sectors for better interpretation.  Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46683 10.14710/presipitasi.v19i2.363-372 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 363-372 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 363-372 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46683/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11005 2016-05-05T01:28:38Z presipitasi:RVA

ANALISIS SEBARANG KEBISINGAN FASILITAS UTILITY PT. PERTAMINA (PERSERO) UP-VI BALONGAN INDRAMAYU Huboyo, Haryono Setiyo Environmental Engineering PT. Pertamina, Balongan, noise, SLM, facility unit . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11005 10.14710/presipitasi.v5i2.1-7 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 1-7 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 1-7 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11005/8689

oai:ojs.ejournal.undip.ac.id:article/62869 2025-05-18T20:37:10Z presipitasi:RCS

Environmental Performance of Ammonia Production in Indonesia using Life Cycle Assessment Approach Zen, Muhammad Rizky Putra, Agus Adi Napitupulu, Michelle Maria Magdalena Noviarini, Chairunnisa Ardyansyah, Fano Alfian Prautama, Cahaya Teknik Lingkungan; Ilmu Lingkungan; Teknik Kimia Ammonia production; carbon capture utilization and storage; environmental performance; life cycle assessment; sensitivity analysis Ammonia is a fundamental component in fertilizer and chemical manufacturing processes around the world, but its production is a significant contributor to CO2 emissions in chemical industry. Implementation of carbon capture utilization and storage (CCUS) offers an alternative decarbonisation strategy to mitigate CO2 emissions in ammonia production. This study assesses the environmental performance of ammonia production through life cycle assessment (LCA) methodology. Environmental impacts are calculated using openLCA software with various impact assessment methods, including CML IA Baseline, Impact 2002+, Recipe 2016 Midpoint (H), and AWARE. The study scope encompasses the cradle-to-grave analysis, from the extraction of raw materials and transportation to ammonia production, main processes, distribution, and consumer product consumption, with a declared unit of 1-kg ammonia product. Our findings showed that CO2 removal and Power Plant in core processes in the core process as the most significant contributors to Global Warming Potential. Therefore, sensitivity analysis was conducted by reducing CO2 emission by 10% and 70% through CCUS implementation. The results showed that the CCUS implementation could reduce Global Warming Potential by up to 43%. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62869 10.14710/presipitasi.v21i2.480-491 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 480-491 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 480-491 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62869/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/34066 2022-02-16T03:29:41Z presipitasi:RSA

Estimation of Domestic Waste Volume as A Sustainable Waste Management Efforts In Mataram City Azmiyati, Uzlifatul Rancak, Gendewa Tunas Teknik Lingkungan domestic waste, forecast, management, volume In this research, the problem formulation is based on the central issues in sustainable domestic waste management. In domestic waste management, information is needed regarding the existing volume and the projected volume of domestic waste in the next ten years. This study's objectives are (1) to determine the volume of domestic waste in Mataram, (2) to project the volume of domestic waste in the next ten years in the city of Mataram. Based on the data analysis results, it is found that the generation of domestic waste in Mataram City in units of weight is 0.4 kg/person/day, while the amount of domestic waste generation in Mataram City in volume units is 0.0020 m3/day. The composition of domestic waste in Mataram City is dominated by wet organic waste at 64%, followed by dry organic waste, non-medical hazardous waste, and plastic packaging, which have the same percentage, namely 6%. The type of waste with the least amount is metal and hazardous medical waste, only 1%. The projected population growth for the City of Mataram has increased with an average growth per year of 1.99%. An increase followed this in the projected waste generation. In 2020 the population is 496,401 people with a waste generation of 1,005 m3/year. Meanwhile, in 2029 the total population of 583,571 people will generate 1,182 m3/year of waste. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34066 10.14710/presipitasi.v18i1.131-140 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 131-140 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 131-140 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34066/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/34066/6747 Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/78406 2026-04-21T07:44:25Z presipitasi:RSA

Environmental Impact of Energy Diversification Using Refuse-Derived Fuel in Cement Industry Firdausi, Eyda Abdul Matin, Hashfi Hawali Rachmawati, Siti Wahyono, Yoyon Purwono, Purwono Budiyono, Budiyono Kencanawardhani, Larasati Gumilang Ilmu Lingkungan; Badan Riset Inovasi Nasional (BRIN); Teknik Kima; Perencanaan Kota Clinker; LCA; refuse-derived fuel Processing municipal solid waste into refuse-derived fuel (RDF) is an alternative solution to the waste problem. This study determined the potential environmental impact of Sleman RDF as an energy diversification agent in the cement industry using life cycle assessment (LCA). The boundary system of this study is gate-to-grave, with a functional unit of co-firing energy requirements for the production of 1 metric ton of clinker. Two clinker co-firing scenarios were developed, involving a combination of coal and alternative fuels. The results showed that the production of 1 metric ton of clinker requires a large amount of resources and contributes significantly to climate change, ecosystem toxicity, and human toxicity. Co-firing clinker in the alternative scenario successfully reduced the potential environmental impact by 14% with a thermal substitution rate of 20%. The findings of this study indicate that RDF is effective in reducing dependence on fossil fuels and lowering emissions and the potential environmental impact. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78406 10.14710/presipitasi.v23i1.175-187 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 175-187 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 175-187 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78406/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/79755 2025-12-13T04:17:17Z presipitasi:RSA

Integrated Management of Scope 3 Emissions in the Steel Supply Chain Dasgupta, Raktim Ghosh, Sadhan Kumar Mukhopadhyay, Arup Ranjan Dolui, Biswanath Circular economy; electric arc furnace; environmental value stream mapping; scope 3 emissions; steel industry Scope 3 emissions constitute the largest and most difficult-to-manage component of the carbon footprint of the steel industry; however, they remain underexplored owing to fragmented data systems and the absence of holistic analytical approaches. This study presents an integrated, real-data-driven framework for quantifying and reducing Scope 3 emissions in a medium-scale steel supply chain in West Bengal, India. Primary operational data were collected from upstream suppliers, midstream manufacturing operations, and downstream distributors using transport logs, meter-based energy records, scrap inspection sheets, on-site walk-throughs, and structured stakeholder interviews. Environmental Value Stream Mapping (EVSM) coupled with life-cycle emission accounting was applied to six process stages (UP1, UP2, MS1, MS2, DS1, and DS2), revealing the Electric Arc Furnace (MS1) as the dominant hotspot, contributing more than 90% of the total Scope 3 emissions. Circularity metrics, namely the Scrap Quality Index (SQI) and Material Circularity Index (MCI), demonstrated that higher scrap quality and increased recycled content can significantly decrease upstream embodied emissions. A cooperative game-theoretic model quantified abatement opportunities for suppliers, the manufacturer, and distributors, showing that full coalition formation {U, M, D} generated the highest net payoff (₹1.89 million). Shapley value allocation confirmed the manufacturer as the major beneficiary (97.6%), with proportionate gains assigned to suppliers and distributors. The results highlight that collaborative governance, enhanced circularity, optimized logistics, and renewable energy integration, particularly solar-based electricity substitution, collectively offer a high-impact pathway for Scope 3 decarbonization. The proposed multi-method framework provides a transparent, equitable, and industry-ready decision support system for accelerating low-carbon transitions in the Indian steel sector.  Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79755 10.14710/presipitasi.v22i3.1039-1050 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 1039-1050 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 1039-1050 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79755/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/49781 2023-04-08T21:36:46Z presipitasi:RCS

Potential of Heavy Metal Pollution (Cd) in the Kapuas Kecil River Purnaini, Rizki Saziati, Ochih teknik lingkungan Cadmium; pollution; kapuas kecil river The Kapuas Kecil River is a river that becomes the lifeblood of the people of Pontianak in supporting their lives. It is raw water source for Municipal Waterworks, industry, fisheries, agriculture, animal husbandry, tourism, and transportation. The variety of activities carried out on the banks of the Kapuas Kecil River contributed to the occurrence of pollution by heavy metals such as Cd. Currently, the Kapuas Kecil River flow is already crowded with industrial shipbuilding activities, which are one of the contributors to Cd metal pollution in the waters. This study aims to identify the source of Cd pollutants and determine the concentration of Cd in the Kapuas Kecil River. Sampling was carried out in October at four sampling points at low tide, then compared with the allowable Cd concentration according to PP 22/2021 which is 0.01 mg/L, and the status of water quality was determined by the pollutant index method. Based on the results of the study, the Cd concentration was still below the quality standard with a value of >0.001 mg/L, and the water quality status met the quality standard. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49781 10.14710/presipitasi.v20i1.77-84 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 77-84 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 77-84 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49781/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/14720 2020-04-17T11:34:28Z presipitasi:RSA

PENENTUAN FORMULA PENAMBAHAN VOLUME AIR KONSTAN PADA PENGOMPOSAN SAMPAH DAUN Samudro, Ganjar Sumiyati, Sri Ratna, Dian Asri Puspa Hastuti, Sindi Martina Kurnia, Vaneza Citra Hadiwidodo, Mochtar Teknik Lingkungan formula, volume air konstan, pengomposan sampah daun Penambahan volume air pada pengomposan sampah daun masih dilakukan secara manual, membutuhkan waktu yang banyak, dan tenaga kerja yang besar. Tujuan penentuan ini dimaksudkan untuk mendapatkan formula penambahan volume air konstan pada pengomposan sampah daun secara kontinyu. Metode penelitian diawali dengan observasi penelitian hubungan waktu terhadap kadar air berdasarkan variasi kadar air yang diinginkan 50% dan 60% sebagai kadar air optimum dalam proses pengomposan, kemudian dilanjutkan analisis kuantitatif deskriptif dalam penentuan formula. Formula penambahan volume air konstan pengomposan sampah daun sebagai berikut: debit input (mL/L/hari): y = 1,764e0,048x, volume air (mL/L): y = 10,01e0,049x, dan volume air (%):y = -0,698x + 61,09. Universitas Diponegoro 2017-05-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14720 10.14710/presipitasi.v14i1.41-44 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 41-44 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 41-44 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14720/11222 Copyright (c) 2017 Jurnal  Presipitasi  :  Media  Komunikasi  dan  Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/65542 2025-05-18T20:39:07Z presipitasi:RSA

Material Flow and Economic Analysis of Wantilan Recycling Center Promoting Circular Economy Principles Satori, Mohamad Hindersah, Hilwati Burhanudin, Hani Januarita, Ratna Purnamasari, Pupung Hernawati, Riza Patricia, Vinda Maharani Miftahadi, Machmuddin Fitra Ilmu Lingkungan Recycling, circular economy, zero waste system, waste management Waste is increasingly recognized not just as an environmental challenge but also as an economic opportunity, particularly in developing countries like Indonesia where it can help alleviate employment shortages. This study explores the dual role of waste as both a tradable commodity driven by industrial demands for raw materials, including primary substances, additives, and Refuse Derived Fuel (RDF), and as a means of reducing environmental impact. This phenomenon is important and interesting because it can have a positive impact both in terms of reducing waste, saving natural resources, and as an economic opportunity for society. This study aims to examine the potential of waste that can be utilized as a resource on the one hand and reduce the potential for pollution on the other. The study used the Material Flow Analysis (MFA) method with the Circular Economy principle and used an action research approach to redesign the waste processing system. The results of this study indicate that the current system only manages 34% of the total waste generation and only 4% can be reused with sales of IDR 97.9 million per year. With the development of a new system, the waste managed is 60% with the economic potential generated of 1.08 billion per year. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/65542 10.14710/presipitasi.v21i3.722-733 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 722-733 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 722-733 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/65542/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/40465 2022-02-16T03:26:18Z presipitasi:RCS

Selecting Plant Types to Control Air Pollution and Developing Software to Plan Green Open Space in the Urban Area Yulfiah, Yulfiah Azzahro, Fiona Pissera, Rosa Canina Teknik Lingkungan air pollution, green open space, software The decrease in air quality becomes one of the development impacts that must be controlled deliberately. Planting trees is crucial for reducing the total number of dust and gas pollutants as it can restrain air pollution through absorption and adsorption. This research aimed at (a) determining the most appropriate types of plants for controlling air pollution and (b) developing software to plan the need for Green Open Space (GOS) in the urban city. The criteria of assessment for measuring the ability of a plant to absorb pollutant gas consisted of: (a) the density level of tree-crown, (b) plant combination, (c) thickness level of leaf, (d) the total number of leaves, and (e) plant distance. Meanwhile, the criteria for assessing the ability of the plant to adsorb dust particles comprised: (a) the roughness of leaf surface structure, (b) leaf width, (c) density level of tree-crown, (d) texture of stem skin surface, and (e) density level of the twig. The results of the research demonstrated that plants of Angsana (Pterocarpus indicus), Kihujan (Samanea saman), and Acacia (Acacia auriculiformis) were very appropriate for absorbing pollutant gas. Meanwhile, the good plants for adsorbing dust particles involved Angsana, Kihujan, Acacia, Tanjung (Mimusops elengi), Kersen (Mutingia calabura), Ketapang (Terminalia cattapa), and red Dadap (Erythrina crista-galli) by the level of adsorption ability around 65-75%. The successfully developed software could present suitability between Green Open Space (GOS) calculated manually and the one counted by software. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/40465 10.14710/presipitasi.v18i2.329-337 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 329-337 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 329-337 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/40465/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/9098 2020-04-17T11:32:18Z presipitasi:RVA

STRATEGI PRODUKSI PUPUK ORGANIK CAIR KOMERSIAL DARI LIMBAH RUMAH POTONG HEWAN (RPH) SEMARANG Oktiawan, Wiharyanto Sarminingsih, Anik Purwono, Purwono Afandi, Mahfud Environmental Engineering; Environment Pupuk Organik Cair, Limbah Rumen, Limbah Garam, Magnesium. Limbah Rumah Pemotongan Hewan (RPH) Kota Semarang yang didominasi oleh rumen sapijika tidak diolah dapat menyebabkan ketidaknyamanan pada manusia dan kerusakan lingkungan.Dampak negatif dari limbah adalah proses pembuangan dan pembersihannya memerlukan biayaserta efeknya dapat mencemari lingkungan. Hal ini mendorong adanya inovasi dan pengembanganteknologi pengolahan air limbah yang murah dan mudah operasional dan pemeliharaannya sertabiaya yang sedikit. Upaya meningkatkan keuntungan akan keberadaan limbah dilakukan caramengolah limbah menjadi produk yang bermanfaat dan bernilai jual. Keuntungan yang bisa diperolehdari proses pengolahan limbah tersebut menjadi biogas, bioenergi, dan pupuk. Pupuk yangmengandung magnesium yang tinggi yang beredar di pasaran biasanya berbentuk granul/ serbuk.Apabila tanaman mengalami kekurangan magnesium maka akan menyebabkan kuningnya daun danmenghambat proses fotosintesis yang terjadi di daun.Penambahan limbah garam pada penelitian ini diharapkan dapat meningkatkan kandunganunsur hara makro C,N,P,K, dan Mg, tidak mencemari lingkungan, tidak merusak struktur tanah, sertamudah dalam pengaplikasiannya. Variasi rasio serat kasar dengan cairan rumen bertujuan untukmengetahui kandungan paling optimum,antara lain: 100:0 ,75:25 , 50:50 , 25:75 , 0:100 (seratkasar:cairan rumen). Hasil penelitian menunjukan bahwa penambahan limbah garam tidakmempengaruhi terhadap kandungan unsur hara C-Organik dan Nitrogen, sedangkan pada kandunganFospor, Kalium, dan Magnesium memiliki pengaruh dari penambahan limbah garam. Kandunganunsur hara makro paling optimum yaitu C-Organik pada fermentor B1 sebesar 1,44%, Ntotal padafermentor B2 sebesar 0,73%, Fospor (P2O5) pada fermentor B3 sebesar 2,243%, Kalium padafermentor B3 sebesar 13,05, dan Mg pada fermentor B3 sebesar 26,82%. Meskipun demikian, pupukorganik cair ini belum memenuhi persyaratan teknis Permentan No.70/Permentan/SR.140/10/2011tentang pupuk organik, pupuk hayati dan pembenah tanah Universitas Diponegoro 2015-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9098 10.14710/presipitasi.v12i2.86-94 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 12, No 2 (2015): September 2015; 86-94 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 12, No 2 (2015): September 2015; 86-94 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9098/7369

oai:ojs.ejournal.undip.ac.id:article/56177 2023-08-18T02:24:32Z presipitasi:RCS

Air Quality Study in Mijen District, Semarang City in 2022 Cahyaningrum, Ristiyani Wijayanti, Yuni tenik lingkungan Air pollution; air quality; ambient air The higher the air pollution in an area, the more it can have a negative impact on human health status if inhaled continuously, especially in the respiratory system. This study used secondary data obtained from the Environment and Forestry Service. The data was analyzed using a descriptive method by comparing data collected in the field with ambient air quality standards based on Government Regulation Number 22 of 2021 concerning the Implementation of Environmental Protection and Management to determine air quality conditions in Mijen District, Semarang City. The impact resulting from air pollution can interfere with the health of living things and damage the ecosystem environment. Human health will be disrupted due to polluted air, which can lead to diseases such as ARI, heart disease, and even lung cancer, which is very dangerous. For this reason, it is necessary to conduct research on air quality to prevent air pollution that exceeds ambient air quality standards, which can cause health problems for the community in Mijen District. Based on research on the analysis of air quality parameter measurement results in Mijen District, Semarang City, it can be concluded that all air quality parameters do not exceed quality standards. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56177 10.14710/presipitasi.v20i2.428-438 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 428-438 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 428-438 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56177/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/21022 2020-04-17T11:37:47Z presipitasi:RSA

KAJIAN PERUBAHAN TATAGUNA LAHAN TERHADAP TINGKAT BAHAYA EROSI DI DAS DENGKENG Sarminingsih, Anik Teknik Lingkungan tataguna lahan; erosi; sedimentasi Daerah Aliran Sungai (DAS) Dengkeng merupakan salah satu Sub DAS Bengawan Solo Hulu, yang sebagian besar wilayahnya berada di kabupaten Klaten Jawa Tengah.DAS Dengkeng terindikasi sebagai salah satu DAS kritis dengan potensi rawan banjir cukup besar.Salah satu penyebab banjir adalah sungai yang semakin dangkal akibat erosi dan sedimentasi.Penelitian ini dilakukan untuk mengevaluasi perubahan tataguna lahan terhadap tingkat bahaya erosi.Prediksi Erosi didasarkan pada penelitian Wischmeier dan Smith yang menyajikan Persamaan Universal Soil Loss (USLE).Jumlah sedimen yang diangkut di sungai dengan mengalikan tingkat erosi dengan rasio pengiriman sedimen (SDR).Potensi erosi dan sedimentasi mengacu pada penggunaan lahan yang berbeda, yaitu 1990, 2000 dan 2011. Secara umum di DAS Dengkeng telah terjadi peningkatan rata-rata tingkat erosi dari 70.60  ton / ha / tahun pada tahun 1999 menjadi 76.82 ton / ha / tahun. 2011atau jika diklasifikasikan berdasarkan tingkat bahaya erosi dengan solum tanah dangkal, maka TBE tergolongsedang menuju ke berat.Peningkatan laju erosi tidak terlampu signifikan karena mayoritas penggunaan lahan adalah sawah.TBE yang tergolong berat berada pada wilayah lahan kering dengan kelerengan curam. Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/21022 10.14710/presipitasi.v15i2.158-164 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 158-164 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 158-164 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/21022/14168 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/68292 2025-12-04T00:06:42Z presipitasi:RSA

CuO-CeO₂ Photocatalysis for the Degradation of Remazol Textile Dyes Rositasari, Putri Redita Pramesti, Thineza Ardhea Rachmanto, Tuhu Agung Amalia, Aussie Photocatalysis; CuO-CeO₂; textile dye degradation; Remazol Turquoise Blue; Remazol Brilliant Red. Water pollution, particularly from textile industry waste, has become an increasingly significant environmental issue. Textile waste, especially synthetic dyes, contributes substantially to water pollution because of its complex structure and low biodegradability. Dyes such as Remazol Brilliant Red and Remazol Turquoise Blue, which are commonly used in the textile industry, are stable, toxic, and difficult to degrade biologically. One promising approach to address this issue is photocatalysis using photocatalysts such as CuO and CeO₂, which possess high degradation capabilities for organic contaminants. This study explored the effectiveness of CuO-CeO₂-based photocatalysts in degrading Remazol Turquoise Blue and Remazol Brilliant Red dyes. Photocatalysts were synthesized with varying CuO-CeO₂ concentrations, and degradation tests were conducted using UV light to observe dye degradation. The results show that the CuO-CeO₂ photocatalysts at a concentration of 25% achieved the highest degradation efficiency, with nearly 41.5% removal of Remazol Turquoise Blue and 26.1% removal of Remazol Brilliant Red after 120 min. Increasing the photocatalyst concentration increases the number of active sites, accelerating the degradation process. However, there is a limitation at very high concentrations because of the potential for catalyst particle agglomeration. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/68292 10.14710/presipitasi.v22i2.420-431 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 420-431 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 420-431 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/68292/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/68292/18263 Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42978 2022-12-14T20:16:03Z presipitasi:RSA

Study of Desiccation Crack Behavior of Fly Ash - Bentonite (FAB) Composite in Landfill Liner System Yohana, Eflita Syafrudin, Syafrudin Budihardjo, Mochamad Arief Ramadan, Bimastyaji Surya Lantasi, Ayudya Izzati Dyah Muhammad, Fadel Iqbal Humaira, Natasya Ghinna Teknik Lingkungan bentonite, fly ash, permeability, water content The addition of bentonite to fly ash can lower the permeability coefficient of the composite landfill liner. Also, the montmorillonite bentonite can bind quite a lot of water molecules during the hydration process. In this study, the effect of mixture, water content, and salinity on the desiccation cracking phenomenon in the bentonite - fly ash mixture as a landfill liner system was investigated by conducting tests such as desiccation test, water content test, and standard proctor and permeability test. The variation in bentonite levels: 0%, 15%, 20%,25% and 25% + 1 N NH4Cl solution. The result shows that the appropriate mixture is fly ash + 15% bentonite with permeability of 4,065 x 10-7. The mixture complies with local regulations where the permeability coefficient of the bottom layer of the landfill should be less than 10–6 cm/s and have a low cracking value (CIF). Furthermore, the addition of saline solution to the composite can rise the value of the optimum moisture content. However, saline conditions can decrease the value of CIF drastically Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42978 10.14710/presipitasi.v19i1.68-77 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 68-77 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 68-77 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42978/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10965 2016-05-05T04:32:12Z presipitasi:RVA

PEMETAAN SPASIAL SEBAGAI DASAR ANALISIS KONDISI HEWAN MAKROBENTOS AKIBAT BUANGAN AIR LIMBAH PLTU-PLTGU (STUDI KASUS: PLTU-PLTGU TAMBAK LOROK, SEMARANG) Zaman, Badrus Huboyo, Haryono Setiyo Environmental Engineering Thermal Pollution, Temperature, Zoomacrobenthos, Diversity Index, Similarity Index, Maping . Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10965 10.14710/presipitasi.v4i1.1-8 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 1-8 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 1-8 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10965/8656

oai:ojs.ejournal.undip.ac.id:article/58394 2025-05-18T20:36:13Z presipitasi:RCS

Determination of Reservoir Ecosystem Status in Cimahi City Govenrment Office Wardhani, Eka Kusnadi, Faza Kamilah Irmansyah, Athaya Zahrani Handiani, Dian Noor Ecosystem status; hypereutrophic; pollution index; trophic status Cimahi City continues to try to repair the damaged reservoir to function optimally as a raw water reservoir. This effort requires identifying the status of the reservoir ecosystem by assessing three standard criteria: aquatic, boundary, and terrestrial quality status. Two methods were carried out: field observation and laboratory research. The field observations are observations and interviews, determining the water sampling point and water sampling, and aerial photography for mapping surveys. The parameters of chlorophyll-A, algae, total nitrogen, and total phosphate were analyzed for the laboratory research. Based on research, the status of aquatic is in the threatened-destruction category because trophic level includes hyper-eutrophic, moderately polluted water quality, low biodiversity, and loss of food webs. The quality of the boundary ecosystem is in the damaged category because >25% of the area of the boundary is a settlement, and there is the disposal of domestic waste that enters the reservoir through canals. The quality of terrestrial ecosystems is in the threatened-damaged category because the land vegetation in the water catchment area is low, and there is an average annual siltation of ≥2% of the depth of the reservoir. It was concluded that management must be carried out in the water catchment area. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58394 10.14710/presipitasi.v21i1.144-153 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 144-153 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 144-153 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58394/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/29197 2020-08-30T22:28:29Z presipitasi:RSA

Hazardous and Toxic Waste Management in Bhayangkara Hospital Tk. I Raden Said Sukanto Pengelolaan Limbah Padat Bahan Berbahaya dan Beracun (B3) Medis RS Bhayangkara Tk. I Raden Said Sukanto Clarisca, Vio Alma Samadikun, Budi Prasetyo Teknik Lingkungan limbah B3; pengelolaan limbah B3; RS Bhayangkara Tk. I Raden Said Sukanto Teknik Lingkungan hazardous and toxic waste; hazardous and toxic waste management; Bhayangkara Tk. I Raden Said Sukanto Hospital The hospital is one of the objects that has a major role in contributing medical waste,  where the waste is classified as hazardous and toxic waste. Medical waste that not treated properly will bring nosocomial disease to humans and pollute the environment. For this reason, waste management is very needed. Medical waste produced by Bhayangkara Hospital Tk. I Raden Said Sukanto came from patient care rooms and medical support rooms. The amount of medical hazardous and toxic waste generated in January 2020 was 16.866 kg which included infectious, pharmaceutical, chemical and sharps waste. Medical hazardous and toxic solid waste management in Bhayangkara Tk. I Raden Said Sukanto Hospital includes reduction, packaging, symbol and labeling, storage, transportation, and processing. Bhayangkara Tk. I Raden Said Sukanto Hospital is guided by government regulations that forced in Indonesia. However, there was still some discrepancies between the existing conditions and regulations caused by the lack of adequate Human Resources. Rumah sakit adalah suatu objek yang memiliki peranan besar dalam menyumbang limbah medis, di mana limbah tersebut digolongkan sebagai limbah bahan berbahaya dan beracun (B3). Limbah B3 tersebut apabila tidak diolah dengan tepat akan membawa penyakit nosokomial bagi manusia dan membahayakan lingkungan. Untuk itu sangat diperlukan upaya pengelolaan limbah. Limbah medis yang dihasilkan oleh RS Bhayangkara Tk. I Raden Said Sukanto berasal dari ruang-ruang perawatan pasien dan ruangan penunjang medis. Hasil yang diperoleh yaitu jumlah timbulan limbah B3 medis pada Bulan Januari 2020 adalah 16.866 kg yang meliputi limbah infeksius, farmasi, kimia, dan benda tajam. RS Bhayangkara Tk. I Raden Said Sukanto telah melakukan upaya pengelolaan terhadap limbah B3 medis yang dihasilkannya dengan berpedoman pada peraturan pemerintah yang berlaku di Indonesia. Upaya tersebut terdiri atas kegiatan pengurangan, pewadahan, pelabelan dan simbol, penyimpanan, pengangkutan, dan pengolahan. Namun, pada kenyataannya masih terdapat beberapa ketidaksesuaian antara kondisi lapangan dengan peraturan. Hal ini dikarenakan minimnya sumber daya manusia yang memadai. Universitas Diponegoro 2020-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29197 10.14710/presipitasi.v17i1.75-84 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 75-84 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 75-84 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29197/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46520 2023-03-29T21:11:54Z presipitasi:RSA

Depth Profiles of Dissolved Oxygen (DO) and Hydrogen Sulfide (H2S) Concentration in a Tropical Freshwater Reservoir Wardhani, Eka Sugiarti, Zulfah Ananda Teknik Lingkungan Floating net cages; positive heterograde; Jatiluhur reservoir This study aims to determine the profile of dissolved oxygen and H2S based on depth in the Jatiluhur Reservoir related to fish culture in floating net cages. The scope of this research is focused on the location of floating net cage cultivation. Dissolved oxygen distribution is classified as a positive heterograde type where dissolved oxygen levels higher in the metalimnion layer due to the photosynthesis process that occurs effectively by aquatic plants and phytoplankton. Jatiluhur Reservoir shows signs of organic pollution, with BOD5 and COD levels exceeding the quality standard. This organic substance comes from the waste of floating net cages. BOD5 and COD values that exceed the quality standard result in increased oxygen consumption during the decomposition process; therefore, a hypoxic layer occurs. This occurrence can cause water conditions to become anoxic, producing H2S gas. The H2S value in the Jatiluhur Reservoir was observed to exceed 0.002 mg/L and showed an increase in the metalimnion layer. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46520 10.14710/presipitasi.v19i2.316-329 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 316-329 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 316-329 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46520/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/46520/10961 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10996 2016-05-04T22:05:53Z presipitasi:RVA

STUDI PENGEMBANGAN TEKNIS TPA JERUKLEGI KOTA CILACAP JAWA TENGAH DENGAN SISTEM SANITARY LANDFILL Wardhana, Irawan Wisnu Environmental Engineering Design, Jeruklegi, landfill, sanitary, Cilacap . Universitas Diponegoro 2009-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10996 10.14710/presipitasi.v6i1.19-27 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 19-27 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 19-27 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10996/8680

oai:ojs.ejournal.undip.ac.id:article/60912 2025-05-18T20:37:10Z presipitasi:RCS

Groundwater Potential of the Jakarta Groundwater Basin using the Darcy Equation Method Priyono, Imsak Aditya Respati Putranto, Thomas Triadi Setiawan, Taat Teknik Geologi; Hidrogeologi Groundwater; Jakarta groundwater basin; potential; quantity; quality The annual increase in population leads to a growing demand for water. To control groundwater utilization in a directed manner is to extract groundwater according to groundwater potential. The research aims to analyze the groundwater potential in the Jakarta Groundwater Basin in terms of quantity and quality. The method used is primary data analysis by determining quantity potential using the Darcy equation method with additional calculations of groundwater volume and quality potential based on drinking water quality standards from the Republic of Indonesia Minister of Health Regulation no. 2 of 2023 and WHO of 2022. The dynamic potential for unconfined aquifers ranges from 2,663–1,372,901 m³/year, while for confined aquifers range from 184,991–1,895,288 m³/year. The static potential for unconfined aquifers ranges from 266,852–3,252,654 m³, while for confined aquifers ranges from 1,317,862–30,620,266 m³. Based on groundwater quality standards for drinking water from the Minister of Health and WHO for the parameters pH, TDS, Na⁺, Cl⁻, SO₄²⁻ and NO₃⁻, there are 15 samples from 53 samples of unconfined aquifer and 36 samples from 75 samples of confined aquifer that meet standards. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/60912 10.14710/presipitasi.v21i2.404-418 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 404-418 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 404-418 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/60912/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/33440 2020-12-16T21:32:59Z presipitasi:RSA

Analisis Kebutuhan Bak Penampung Lumpur IPA sebagai Upaya Pengendalian Dampak Lingkungan Drying Bed Volume Design Analysis for Reducing Environmental Impact of WTP Residuals Sari, Deasy Ambar Kamulyan, Budi Triatmodjo, Bambang Teknik Lingkungan; Pengolahan Air Minum; Residu IPA residu lumpur; IPA; SDB; kebutuhan volume Environmental Engineering; Drinking Water Treatment; IPA residue sludge residual, WTP, SDB, volume design Bak pengering lumpur atau Sand Drying Bed (SDB) digunakan untuk mengendalikan potensi dampak lingkungan akibat residu lumpur IPA. Pedoman SNI yang ada saat ini belum cukup mudah diterapkan oleh perencana dalam menentukan volume kebutuhan bak SDB, dikaitkan dengan kapasitas IPA dan kondisi air baku. Penelitian ini kemudian bertujuan untuk menganalisis produksi lumpur dari suatu IPA yang berguna sebagai referensi dalam penetapan dimensi SDB. Penelitian dilakukan pada unit IPA di D.I Yogyakarta yang menggunakan air baku Sungai Progo, yaitu IPA Pajangan (kapasitas 50 liter/detik) dan IPA Kartamantul-Sistem Bantar (kapasitas 400 liter/detik). Produksi lumpur dianalisis berdasarkan data kekeruhan air baku, simulasi fluktuasi kadar TSS (Total Suspended Solid) air baku dan dosis bahan koagulan, serta uji massa jenis lumpur kering dan uji imhoff residu dari IPA. Berdasarkan penelitian diperoleh hasil bahwa lumpur kering yang dihasilkan dari IPA Pajangan diperkirakan mencapai 244,55 m3/tahundari total volume air kurasan residu lumpur sebesar 43.158,52 m3/tahun(atau 2,365 m3/hari residu lumpur untuk tiap liter produksi air baku). Sementara lumpur kering dari IPA Kartamantul mencapai 1.550,49 m3/tahundari total volume air kurasan residu lumpur sebesar 273.635,22 m3/tahun (atau 1,874 m3/hari residu lumpur untuk tiap liter produksi air baku). Produksi lumpur yang cukup besar ini menyebabkan volume bak SDB kedepan perlu direncanakan dengan lebih baik. Sand Drying Bed (SDB) is designed for reducing the potential environmental impact caused by Water Treatment Plants – WTP residuals. Currently, the technical document of SNI (Indonesian National Standard) is still difficult to be applied by the engineer in determining required SDB’s volume based on WTP’s capacity and raw water conditions. The purpose of this research is to analyze WTP’s sludge production for designing SDB’s volume. The research was taken place at Pajangan WTP (50 l/s capacity) and Bantar System of Kartamantul WTP (400 l/s capacity) in Yogyakarta Special Province, which use Progo River as raw water source. The data used in the analysis is raw water turbidity compilation data, TSS (Total Suspended Solid) fluctuations rate of raw water, coagulant dosage used, specific gravity range of dried sludge and imhoff settling ratio based on laboratory tests. The results obtained show that one-year production of dry sludge on Pajangan WTP Unit is estimated to reach 244.55 m3/year from the total number of WTP residual (water and sludge) produced of around 43,158.52 m3/year. Meanwhile, the dry sludge produced on Kartamantul WTP Unit is estimated to reach 1,550.49 m3/year from the total number of WTP residual produced of around 273,635.22 m3/year. Then, each of Pajangan and Kartamantul WTP unit produced about 2.365 m3/day and 1.874 m3/day sludge for every 1 liter/second of raw water. This large amount of sludge leads the SDB has to be better designed. Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33440 10.14710/presipitasi.v17i3.284-294 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 284-294 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 284-294 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33440/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/77620 2026-04-21T07:44:25Z presipitasi:RCS

Starbo-AFE Compost and Volcanic Ash Improve Coffea liberica Growth in Tropical Peat Soils Maryani, Anis Tatik Armando, Yunta Gombang Aswandi, Aswandi Sarman, Sarman Tawakkal, Irfan Environmental Science Chlorophyll; Coffea liberica ; compost; peat soil; vegetative growth; volcanic ash Coffee liberica is an economically important yet under-researched coffee species in Indonesia. This study evaluated the individual and combined effects of Starbo-AFE compost and volcanic ash on vegetative growth and physiological performance of C. liberica in Jambi, Indonesia. A two-factor factorial experiment arranged in a randomized complete block design tested three compost rates (0, 250, and 500 g plant⁻¹) and three volcanic ash rates (0, 250, and 500 g plant⁻¹) with three replications. Measured variables included leaf area, primary branch diameter, number of fruiting branches, chlorophyll content, and soil chemical properties. Starbo-AFE compost significantly increased leaf area and branch diameter (p < 0.05), with the highest values at 500 g plant⁻¹, increasing by 54.6% and 17.5%, respectively, compared with the control. Volcanic ash alone showed no short-term effect; however, its combination with compost resulted in the highest chlorophyll content, indicating a synergistic response. Compost improved soil total N and organic carbon, while volcanic ash enhanced potassium availability and potential pH buffering. Overall, applying 500 g Starbo-AFE compost per plant effectively promotes early vegetative growth of C. liberica on peat soils, with volcanic ash contributing to longer-term soil fertility improvement. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/77620 10.14710/presipitasi.v23i1.321-338 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 321-338 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 321-338 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/77620/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/1457 2012-03-29T04:45:01Z presipitasi:RVA

PENGARUH TANAMAN RUMPUT BEBEK (Lemna minor) TERHADAP PENURUNAN BOD DAN COD LIMBAH CAIR DOMESTIK Endro, Sutrisno Sri, Sumiyati Environmental Engineering; Environment Domestic wastewater, BOD, COD, duckweed (Lemna minor) Domestic wastewater coming from household activities is an environmental problem that needs to be taken  seriously.  For  it.  appropriate  alternative  treatment  is  needed,  both  in  terms  of  economic efficiency and the environment. As one attempts to solve is to take advantage of duckweed plants as a medium  to  improve  the  quality  of  the  leachate  is  biologically  or  as  bioakumulator  substance  - contaminants. This study aims to determine the effectiveness (efficiency) of duckweed plants (Lemna minor) in a decreasing concentration of BOD and COD of domestic wastewater. The method used is based  on  laboratory  analysis  of  BOD  and  COD  concentration  in  wastewater  samples.  The  process was  performed  under  a  batch  system  by  varying  the  concentration  of  waste  (20%,  25%,  33%  and 50%)  and  residence  time  in  reactor  (0,5,10,15,20)  days.  The  result  of  such  treatment  from  day  0  to day 20, there is the highest efficiency in treatment for BOD 78.26% at concentrations of 50% and the COD is 71.15% at a concentration of 20%. Universitas Diponegoro 2012-02-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1457 10.14710/presipitasi.v7i1.42-47 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 42-47 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 42-47 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1457/1222

oai:ojs.ejournal.undip.ac.id:article/50688 2023-01-04T02:30:50Z presipitasi:RCS

Waste Collection and Transport Optimization of Pemalang District Service Area, Pemalang Regency Anisa, Adranandini Noor Hadiwidodo, Mochtar Sudarno, Sudarno Sumiyati, Sri Waste Management Waste management; rotation; transportation; optimization This study was prepared with the aim to plan the optimum transportation system in Pemalang sub-district based on traffic conditions in accordance with the desired target. The method used in this planning uses GIS-based applications, namely network analyst and google map. The operational cost of the vehicle in this planning is calculated by the PCI (Pacific Consultant International) method. Based on existing conditions, the operational costs of vehicles incurred reached Rp2,361,445,231.21 while in optimization conditions the operational costs incurred became more efficient at Rp2,913,093,684.31. The optimum time of transportation is done at 05.00 – 12.00 to avoid peak traffic hours at 13.00 – 17.00 with a vehicle travel speed of 47.42 km/h. Addition of freight after optimization so that it becomes 50 freight/day and the addition of containers to 9 containers. It was obtained for 2021 - 2025 as many as 17 containers as well as the addition of freight as many as 15 freight, and 6 fleets of armroll truck carriers. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50688 10.14710/presipitasi.v19i3.687-700 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 687-700 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 687-700 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50688/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/12486 2020-04-17T11:33:18Z presipitasi:RSA

REVITALISASI SISTEM PENGELOLAAN SAMPAH TERPADU DI KELURAHAN PUDAKPAYUNG SEMARANG Samadikun, Budi Prasetyo Hadiwidodo, Mochtar Jusihdani, Atiya Nurul Environmental Engineering revitalization, operational, institutional, community participation, Pudakpayung. This study focused on the existing condition of waste management in Pudakpayung Village Semarang and revitalization efforts on the operational aspects, institutional, and community participation, due to the lack of optimization waste management process in the region. By using the survey method, it is known that the placing and sorting process in existing condition have individual place pattern but have not done the sorting activity which is not entirely discarded inWaste Processing Unit Pudakpayung, with collecting periodization in 2 days and 3 times ritation. Waste Processing Unit Pudakpayung only serve 5 RW in the Pudakpayung Village, and partly Gedawang Village area. Universitas Diponegoro 2016-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/12486 10.14710/presipitasi.v13i2.66-74 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 2 (2016): September 2016; 66-74 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 2 (2016): September 2016; 66-74 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/12486/9427 Copyright (c) 2016 Jurnal Presipitasi https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/60818 2025-05-18T20:39:07Z presipitasi:RCS

Identification of Heavy Metal Concentration in Citarum River Water Using the Heavy Metal Pollution Index Method Wardhani, Eka Wulan, Diana Rahayuning Velda, Nazla Amaliyah Nugraha, Willy Cahya Rohman, Oman Irmansyah, Athaya Zahrani Environmental Engineering Citarum; heavy metal; pollution index The Citarum River is the largest and longest river in West Java Province. The basin in that location has influenced by human activities and the industrial sector. One of the hazardous pollutants contained in industrial wastewater is heavy metals. This study aims to identify the content of dissolved heavy metals (Fe, Cd, Cr, Cu, Hg, Pb, and Zn) in Citarum River water, Purwakarta Regency, at three observation points, namely Jatiluhur Reservoir Outlet, Cilalawak Bridge, and Cilele Bridge. The Atomic Absorption Spectrophotometry Method is used to analyze the dissolved heavy metals. Determination the level of metal contamination using the Heavy Metal Pollution Index (HPI) method. The study results that three metals exceeded the standard based on Government Regulation 22 of 2021 Class II, namely Fe, Hg, and Zn. Fe metal in the range between 0.277-1.179 mg/L, Hg metal between 0.011-0.100 mg/L, and Zn metal between 0.017-0.074 mg/L. HPI analysis showed that at three points in both sampling periods, it indicated that heavy metals highly polluted river water because the results obtained exceeded the HPI pollutant index, which was > 100. The biggest contribution of dissolved heavy metals in the Citarum River water body was dominated by the Hg parameter Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/60818 10.14710/presipitasi.v21i3.812-824 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 812-824 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 812-824 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/60818/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/38260 2022-02-16T03:26:18Z presipitasi:RCS

Optimization of Waste Management at the Purwosari Material Recovery Facility (MRF) Mijen District, Semarang City Sarminingsih, Anik Nugraha, Winardi Dwi Karmilia, Alya Environmental Engineering Material recovery facility, optimization, Semarang City, waste management Semarang City is working on constructing a Material Recovery Facility (MRF) in various urban villages to reduce the waste that enters the Jatibarang Landfill. However, the construction of MRF is not optimal. MRF Purwosari still functions as a container without waste processing. By projecting waste generation for the next ten years, the results of optimization planning are processing waste into RDF, redesigning MRF covering an area of 1,571 m2 with an investment cost of IDR 1,602,837,997 and an operational cost of IDR 307,741/ton/day. The NPV value was Rp.4,836,965, EIRR 12%, and BCR value of 1.81. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/38260 10.14710/presipitasi.v18i2.231-240 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 231-240 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 231-240 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/38260/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/7224 2014-08-27T02:54:19Z presipitasi:RVA

TIMBULAN DAN KOMPOSISI SAMPAH DI KAWASAN PERKANTORAN DAN WISMA (Studi Kasus: Werdhapura Village Center, Kota Denpasar, Provinsi Bali) Wardiha, Made W. Putri, Pradwi S.A. Setyawati, Lya M. Muhajirin, Muhajirin Environmental Engineering Environmental Engineering ABSTRAK Sampah merupakan salah satu masalah yang potensial di Provinsi Bali. Salah satu sumber sampah di kawasan perkotaan terutama Denpasar adalah perkantoran dan wisma. Werdhapura Village Center merupakan salah satu kawasan perkantoran dan wisma  di Kota Denpasar. Manajemen Werdhapura belum  memiliki  pengelolaan  sampah  yang  terintegrasi.  Oleh  karena  itu,  perlu  dibuat  suatu  rencana pengelolaan  sampah  yang  dimulai  dengan  melakukan  penelitian  mengenai  timbulan  dan  komposisi sampah.  Tujuan  dari  penelitian  ini  adalah  untuk  mengetahui  timbulan  dan  komposisi  sampah  di Werdhapura  dan  memperkirakan  jumlah  sampah  yang  berpotensi  untuk  dikelola.  Penelitian  dimulai dengan  survey  dan  wawancara  mengenai  sumber  sampah  dan  kondisi  eksisting  dari  pengelolaan sampah  di  Werdhapura.  Survey  dilakukan  dengan  meninjau  fasilitas  tempat  sampah,  tempat penampungan  sementara,  dan  sumber-sumber  sampah,  sedangan  wawancara  dilakukan  terhadap manajemen  Werdhapura.  Timbulan  dan  komposisi  sampah dihitung  dengan  metode  SNI  19-3964-1995. Hasil penelitian menunjukkan bahwa volume timbulan sampah sekitar 4,6 m3/hari dan beratnya sekitar 302,3 kg/hari.  Komposisi sampah (% berat) yang terbanyak adalah sisa makanan (26,43%), kertas (18,55%), residu (14,64%), dan sampah organik (10,93%). Sekitar 47,51% dari total sampah di Werdhapura berpotensi untuk didaur ulang yaitu sampah organik, sisa makanan, dan sampah kering. Kata kunci: komposisi, perkantoran dan wisma, sampah, timbulan Universitas Diponegoro 2014-03-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/7224 10.14710/presipitasi.v10i1.7-17 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 10, No 1 (2013): Vol. 10 No. 1 (2013); 7-17 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 10, No 1 (2013): Vol. 10 No. 1 (2013); 7-17 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/7224/5892

oai:ojs.ejournal.undip.ac.id:article/52822 2023-08-18T02:24:32Z presipitasi:RCS

Vegetation Density Analysis in Padalarang Bandung Regency Using NDVI Method on Landsat 8 Satellite Widyaningtyas, Ratna Ambarwati Kusuma Dewi, Mini Shofa Azizia, Maulyda Hawali Abdul Matin, Hashfi Environmental Science; Environmental Engineering Vegetation density; NDVI; landsat 8 satellite; Padalarang Bandung Vegetation is an important component in an ecosystem. Padalarang Sub-District is a sub-district in West Bandung Regency with the smallest area but the most densely populated among other sub-districts in West Bandung, with a density of 3,478 people km2. The purpose of this research is to analyze the level of vegetation density using the Normalized Difference Vegetation Index (NDVI) technique as a consideration, especially for the government regarding development program arrangements. The method used was Landsat 8 image interpretation with NDVI, and the results will be classified according to the classification of vegetation density used. As a result, the density of vegetation has decreased from 2013 to 2021, area of non-vegetation and sparse vegetation land indicates, increasing by 5.3% and 4.51%, respectively. In the classification of fairly dense, dense, and very dense vegetation, density decreased by 4.39%, 4.86%, and 0.55%, respectively, which has resulted in reduced green areas becoming built-up areas along with the development of the number and mobility of the population. It is necessary to increase the amount of vegetation and stipulate development regulations that take into account the existence of vegetation as a support for ecological functions. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52822 10.14710/presipitasi.v20i2.326-333 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 326-333 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 326-333 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52822/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20790 2020-04-17T11:36:58Z presipitasi:RSA

PENENTUAN VARIASI RASIO C/N OPTIMUM SAMPAH CAMPURAN (DEDAUNAN DAN SISA MAKANAN) TERHADAP KINERJA COMPOST SOLID PHASE MICROBIAL FUEL CELLS (CSMFC) Lucitawati, Erika Rezagama, Arya Samudro, Ganjar Teknik Lingkungan rasio C/N, kinerja CSMFC Rasio C/N merupakan salah satu faktor penting pada proses pengomposan dan produksi listrik dalam compost solid phase microbial fuel cells (CSMFC). Rasio C/N menggambarkan nutrisi yang tersedia bagi mikroorganisme dalam CSMFC. Besarnya nilai rasio C/N yang terdapat dalam substrat yang digunakan mempengaruhi kinerja CSMFC. Penelitian ini bertujuan untuk menentukan nilai rasio C/N yang optimum terhadap kinerja CSMFC. Variasi nilai rasio C/N yang digunakan yaitu 30:1, 40:1 dan 50:1. Kadar air diatur pada 60 %. Penelitian dilakukan secara batch selama 23 hari. Parameter yang diujikan berupa suhu, pH, kadar C Organik, N total, P total, K total, rasio C/N, power density, dan Coulombic efficiency. Hasil penelitian menunjukkan bahwa kinerja CSMFC yang optimum terdapat dalam reaktor dengan rasio C/N 30:1 dengan nilai suhu, pH, kadar C Organik, N total, P total, K total, power density, dan Coulombic efficiency secara berturut-turut sebesar 7,1, 27,5 OC, 20,31%, 1,63%, 0,19%, 0,21%, 12,47, 48,02 mW/m2 dan 0,19%. Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20790 10.14710/presipitasi.v15i2.100-105 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 100-105 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 100-105 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20790/14087 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/68404 2025-12-04T00:06:38Z presipitasi:RSA

Application of Anaerobic Aerobic Biofilter Systems for Reducing Organic Matter in Cracker-Wastewater Treatment Abdulgani, Hamdani Hadiyanto, Hadiyanto Sudarno, Sudarno Fadhil, Muhammad Biofilter; anaerobic aerobic system; wastewater treatment; industrial wastewater Wastewater treatment using traditional systems is considered expensive because it requires considerable energy and installation. The current study assessed the existence of a combination process that can reduce costs and is easy to operate. This study evaluates the performance of an anaerobic-aerobic biofilter system to treat industrial wastewater from cracker production. The combination of anaerobic and aerobic biofilters can significantly reduce Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD), which are important parameters for wastewater quality. Sampling was carried out on the influent channel of the fish cracker industry. Sampling uses the SNI 6989.59:2008 regulation in the form of a wastewater test sampling method. The results showed that the biofilter achieved BOD removal of up to 84.90% and COD reduction of more than 89.02% when operated with an extended Hydraulic Retention Time (HRT) of up to 24 h. The results also showed that in wastewater treatment, HRT optimization should be considered for maximum pollutant removal, as shorter retention times proved less effective in reducing COD and BOD organic loads. These findings suggest that anaerobic-aerobic biofilter systems are viable and scalable solutions for industries seeking efficient and environmentally friendly wastewater treatment options. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/68404 10.14710/presipitasi.v22i1.109-123 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 109-123 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 109-123 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/68404/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/44396 2022-02-19T00:21:43Z presipitasi:RSA

STEM-Blended Learning Regarding Earthquake Disaster: Prospective Teachers Perception Ardianto, Didit Rubini, Bibin Pursitasari, Indarini Dwi Rachman, Indriyani STEM education; blended learning; environmental disaster This study aims to determine student teacher perceptions of the implementation of STEM-Blended learning. The subjects involved in this study consisted of 25 4th semester students in the elementary school teacher program. The instruments used include closed questionnaires and open questionnaires. The results showed that students gave a positive attitude towards scientific and engineering practices in the lecture process. In addition, they are also very motivated to create a prototype design that integrates STEM Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/44396 10.14710/presipitasi.v18i3.556-563 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 556-563 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 556-563 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/44396/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10956 2016-05-04T09:08:33Z presipitasi:RVA

ANALISIS SEBARAN TEMPERATUR DAN SALINITAS AIR LIMBAH PLTU-PLTGU BERDASARKAN SISTEM PEMETAAAN SPASIAL (STUDI KASUS : PLTU-PLTGU TAMBAK LOROK SEMARANG) Huboyo, Haryono Setiyo Zaman, Badrus Environmental Engineering wastewater, temperature, salinity, dissolved oxygen Heat wastewater emitted by power plant near seashore will be dispersed to bulk seawater by stream.  The main  effects  generated  by  this  elevated  streams  is  deteriorating  of  benthic  and aquatic life productivity. Further impact is subjected to depleting dissolved oxygen and seawater salinity content. By means of spatial mapping, the pattern of temperature distribution would be revealed and its impact  could be predicted  by then. Measurements of 14 purposive sampling spots were conducted in the early morning, noon and afternoon within Tambak Lorok Port pond. Control  measurements  also  were  taken  in  the East  side  and  West  side  of  the  pond. Temperature distribution observed from the early morning through the afternoon exhibited the same pattern with dissolved oxygen distribution as well as stream pattern. Turbidity distribution accumulated  in  the  East  side,  mixed  with  domestic  waste  stream carrying  large  amount suspended  solids.  Salinity  distribution  showed  a  little  bit  different  pattern with  temperature distribution  considering  that  salinity  pattern  was  affected  by  incoming  streams from  bulk seawater in the Northwest and Northeast of the pond. Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10956 10.14710/presipitasi.v3i2.40-45 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 40-45 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 40-45 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10956/8646

oai:ojs.ejournal.undip.ac.id:article/58560 2024-06-14T22:00:52Z presipitasi:RSA

Analysis of Exhaust Gas Emission of Motor Vehicles with Variations of Fuel Types Suryati, Isra Indrawan, Ivan Samuel Lubis, Jonathan Tanjung, Munir Setyowaty, Lies Teknik Lingkungan Carbon monoxide; EFI system; emission; fuel; hydrocarbon The discrepancy between the use of vehicle fuel types and the vehicle's technical specifications is expected to affect exhaust emissions. This study aims to examine the effect of using four types of fuel with different octane number specifications on two four-wheeled motor vehicles with an EFI fuel delivery system on exhaust gas emission parameters of carbon monoxide (CO), hydrocarbon (HC), carbon dioxide (CO2) and non-emitting gases Oxygen (O2). With a quantitative experimental approach method using the Automotive Emission Analyzer and simple linear regression analysis, the results showed that the use of variations with octane numbers RON 98, RON 92, RON 90, and RON 88 fuels at the same time as variations in engine speed (1000 – 3000) RPM showed an effect on concentration. HC and CO emissions decreased with each increase in the octane number of fuel, RON 92 fuel with the lowest average CO / HC (0.0013% / 0.46 ppm) and RON 98 with the lowest average CO / HC (0.0026% / 0 ppm). The use of RON 92 fuel is more effective and inexpensive to apply to vehicles with an EFI fuel delivery system (with compression of 1:10/10.2) compared to RON 98 fuel which emits higher CO and HC emissions at low engine speed (1000 -1500) RPM. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58560 10.14710/presipitasi.v20i3.755-764 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 755-764 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 755-764 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58560/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/26800 2020-08-30T23:24:24Z presipitasi:RSA

Analisis Willingness to Participate dari Masyarakat Pesisir Laut dalam Pengelolaan Sampah (Studi Kasus: Kelurahan Pulau Pari, Kabupaten Kepulauan Seribu) Analysis of Willingness to Participate from the Coastal Communities in Waste Management (Case Study: Pulau Pari Village, Kepulauan Seribu District) Chaerul, Mochammad Laksana, Winda Teknik Lingkungan willingness to participate, municipal solid waste management, coast, marine debris Teknik Lingkungan willingness to participate, municipal solid waste management, coast, marine debris Nowdays, marine debris becomes a major concern globally from many parties. Predicted source contributes to marine debris is settlement located at the coast. While facing several constraints, a municipal solid waste (MSW) management developed by community and local authority, especially taking consideration to keep a tourist attractive. Often, MSW management was applied without any consideration to the willingness of the community as a waste generator. The paper aims to find the willingness to participate related to MSW management from community at the coast with a case study of Pulau Pari Village of Kepulauan Seribu Regency. There were 6 criteria developed in the study namely: community habits, willingness to participate, community identification, environmental concern, social norms, and community perceptions, with the assessment to each subcriteria using likert scale 1-5 from 27 respondents. Subsequently, subcriterion of the participation related to MSW management were preferably chosen by respondent from each criterion. For example, from criterion of community habits the two subcriterion were dominantly chosen namely: pariticipate to provide waste storage (21%) and waste collection and directly sold by themselves (20%). Result of the willingness to participate could be used to determine a system or technology related to MSW management so that it may more sustained, especially to reduce the quantity of waste dumped to the sea. Nowdays, marine debris becomes a major concern globally from many parties. Predicted source contributes to marine debris is settlement located at the coast. While facing several constraints, a municipal solid waste (MSW) management developed by community and local authority, especially taking consideration to keep a tourist attractive. Often, MSW management was applied without any consideration to the willingness of the community as a waste generator. The paper aims to find the willingness to participate related to MSW management from community at the coast with a case study of Pulau Pari Village of Kepulauan Seribu Regency. There were 6 criteria developed in the study namely: community habits, willingness to participate, community identification, environmental concern, social norms, and community perceptions, with the assessment to each subcriteria using likert scale 1-5 from 27 respondents. Subsequently, subcriterion of the participation related to MSW management were preferably chosen by respondent from each criterion. For example, from criterion of community habits the two subcriterion were dominantly chosen namely: pariticipate to provide waste storage (21%) and waste collection and directly sold by themselves (20%). Result of the willingness to participate could be used to determine a system or technology related to MSW management so that it may more sustained, especially to reduce the quantity of waste dumped to the sea. Universitas Diponegoro 2019-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26800 10.14710/presipitasi.v16i3.160-171 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 160-171 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 160-171 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26800/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/26800/4479 Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/76373 2025-12-04T00:06:42Z presipitasi:RVA

Life Cycle Assessment and Material Flow Analysis Research on Electronic Waste in Asia: Trends, Gaps, and Insights Septiariva, Iva Yenis Suhardono, Sapta LCA; recycling; SLNA; e-waste management; waste management trends The term "electronic waste" or "e-waste" refers to a broad array of discarded electronic products and electrical appliances that have reached the end of their useful lives. These include computers, smartphones, televisions, and refrigerators. Over the past three years, the volume of e-waste has surged, from 24.9 million metric tons (MMT) in 2019 to 33 MMT in 2022, as reported by the United Nations in The Global E-Waste Monitor 2024. This increase is driven by the expansion of the electronics industry and the increased usage of electronic devices. Life Cycle Assessment (LCA) and Material Flow Analysis (MFA) are key methodologies used to assess the environmental impact and material flow of e-waste management, respectively. However, many MFAs fail to track the flow of secondary materials that are reused, recycled, and reduced in the new products. This study addresses these gaps by analyzing e-waste management trends in Asia using a systematic literature network analysis (SLNA). SLNA combines a systematic literature review (SLR) and bibliometric analysis (BA) to offer a comprehensive review from various perspectives. This study aims to identify underexplored topics and trends, provide insights that can shape future research directions, and inform government policies on e-waste management in Asia.  Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/76373 10.14710/presipitasi.v22i2.670-687 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 670-687 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 670-687 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/76373/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10978 2016-05-21T15:44:06Z presipitasi:RVA

PENGARUH WAKTU STABILISASI PADA SEQUENCING BATCH REACTOR AEROB TERHADAP PENURUNAN KARBON Sumiyati, Sri Environmental Engineering SBR Aerob, stabilization time, COD One  of  biological  wastewater  treatment  process    modification  Sequencing  Batch  Reactor by exploiting  period  of  stabilization  time  earn  to  lessen  capacities  of  total  aeration volume. Mechanism  that  happened  in  this  SBR  modification  same  as  that  happened  in Contact Stabilization.  There  was  existence  process  biosorption,  was  due  to  adsorption  of  the organic matter  onto  sludge  particels,  during  the  contact  period  (fill  -  react  time).This  research aim  to know  influence  of  stabilization  time  to  degradation  of  COD.  This  research,  used  SBR reactor with volume operate for 5 Liter with COD influent consentration 1139.2 mg/L. The variation of stabilization  time  :  3,  4,  5  and  6  hours  and  time  reacted  :  0,5  ;  1  ;  1,5  and  2  hours as independent  variables.  COD  effluent  concentration  as  depended  variable.Result  of research indicate that progressively time of stabilization and concentration COD (mg/L) will experience of efficiency  improvement.  Time  reacted  to  give  influence  the  happening  of  biosorption (the adsorption of organic matter onto sludge particel). The fenomena that happened is degradation of concentration COD will achieve maximum level at the total contact time 1,5 hour. Efficiency of optimum degradation COD become of variation  r/s = 1 : 6. Universitas Diponegoro 2006-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10978 10.14710/presipitasi.v1i1.13-18 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 13-18 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 13-18 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10978/8669

oai:ojs.ejournal.undip.ac.id:article/56890 2025-05-18T20:36:13Z presipitasi:RVA

Incorporating Inhibition Effects and Hydrolysis Biokinetics into the Mathematical Model of Anaerobic Fermentation Kurniawan, Allen Wirasembada, Yanuar Chandra Sibag, Mark L. Erizal, Erizal Arif, Chusnul Teknik Lingkungan Anaerobic fermentation; biokinetic; hydrolysis; inhibition; model Anaerobic digestion is a well-known biological treatment process. It uses less energy, consumes fewer nutrients, converts organic pollutants into methane gas, and produces a small quantity of biomass. The interactions among the various microbes in this complex biological system need to be better understood, and as a consequence, mathematical models need to be revised. This review discusses the principles of biokinetic models published in the literature on anaerobic fermentation as part of the anaerobic digestion process for waste-activated sludge. Biokinetic models for anaerobic fermentation have been developed to predict cell growth, substrate consumption, and gas production. This exploration delves into the incorporation of the hydrolysis stage, a multi-step process entailing the breakdown of carbohydrates, proteins, and lipids within existing biokinetic models. Because there is no single analytical method for accurately determining the biokinetics of anaerobic fermentation of waste-activated sludge incorporating hydrolysis parameters and inhibition effects are proposed to improve the estimated trends of process variables as a function of the design variables. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56890 10.14710/presipitasi.v21i1.26-40 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 26-40 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 26-40 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56890/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/27834 2020-12-16T21:32:40Z presipitasi:RSA

Pemetaan Lahan Sub-Optimal Berbasis Nilai NDVI Sentinel 2a: Studi Pendahuluan Mapping of Sub-Optimal Land Based on NDVI Sentinel 2a Value: Preliminary Study Indarto, Indarto Nadzirah, Rufiani Reksa Belagama, Hadrian remote sensing; land use land cover; change; agricultural; Sentinel 2A; NDVI; Klasifikasi; lahan-pertanian; sub-optimal; kering Remote sensing; land use land cover; change; agricultural sentinel 2A; NDVI; classification; dry-marginal; agricultural-land Normalized Difference Vegetation Index (NDVI) merupakan salah satu indeks vegetasi yang digunakan untuk menganalisis kerapatan vegetasi. Penelitian ini menyajikan potensi aplikasi NDVI untuk memetakan Lahan Sub-Optimal kering (LSO-kering). Penelitian dilakukan di bagian timur wilayah Kabupaten Situbondo yang mencakup tiga kecamatan, yaitu, Arjasa, Asembagus dan Jangkar. Citra Sentinel 2A rekaman tahun 2018 yang sudah terkoreksi dan 450 training area atau GCP (Ground Control Point) digunakan sebagai input utama. Wilayah tersebut merupakan daerah dengan karakteristik iklim yang khas, dimana musim kemarau lebih lama dibanding dengan musim penghujan. Analisis menggunakan tool  "plug-in SNAP" dan "QGIS". Prosedur penelitian mencakup: (1) inventarisasi data, (2) pra-processing data, (3) processing data dan (4) uji akurasi.  Klasifikasi NDVI dapat membedakan 6 kelas peruntukan yaitu : badan air, area pemukiman, LSO-kering, tegalan-sawah tadah hujan, sawah irigasi, hutan-perkebunan. Klasifikasi NDVI menghasilkan nilai Overall dan Kappa akurasi sebesar 66,9% dan 61,6%. Nilai akurasi yang didapat masih jauh dari standar klasifikasi, namun metode ini dapat menjadi pijakan penelitian selanjutnya terkait dengan indek citra yang dapat digunakan untuk identifikasi LSO-Kering. Normalised Difference Vegetation Index (NDVI) is one of the vegetation indices used to analyse vegetation density. This study presents the potential use of NDVI to map dry-marginal-agricultural land (Dry-MAL). The study conducted in the eastern part of Situbondo, which includes three districts, namely, Arjasa, Asembagus and Jangkar. Sentinel-2A (recorded in 2018) and 450 Control points (GCPs) are used as the primary input. The region is an area with distinctive climate characteristics, where the dry season is longer than the rainy season. Analysis using "SNAP plug-ins" and "QGIS". Research procedures include (1) data inventory, (2) data pre-processing, (3) data processing and (4) accuracy testing. The NDVI classification can distinguish six (6) classes of land-use, i.e., water bodies, residential areas, dry MAL, non-irrigated rural area, irrigated paddy fields, forest-plantations. The NDVI classification produces Overall and Kappa accuracy values =  66,9% and 61,6%. Although the overall and kappa accuracy is below the standard, however, the result will benefit for further research of index vegetation or soil more applied for the identification of Dry-MAL Universitas Diponegoro Universitas Jember 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/27834 10.14710/presipitasi.v17i3.194-204 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 194-204 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 194-204 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/27834/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/70347 2026-04-21T07:44:25Z presipitasi:RSA

Forecasting Renewable Energy Transition Using Error Correction Model: Addressing Environmental and Sustainable Development Nisa, Hoerun Rachmawatie, Dessy Ziat, Younes Wardani, Dyah Titis Kusuma Ekonomi Pembangunan, Pemodelan, Lingkungan Carbon emissions; FDI; GDP; renewable energy; tax revenue; urbanization In the context of global warming, the transition from fossil fuels to renewable energy is crucial for reducing carbon emissions and achieving sustainable development goals. From 1990 to 2022, this study examines new energy consumption in Indonesia and examines its relationship with GDP, foreign direct investment (FDI), urbanization, carbon emissions (CO2), the exchange rate, and subsidies received. An ECM was used to determine the short- and long-term impacts. In the short term, economic growth has a positive and significant effect on energy consumption; however, in the long term, the negative effect becomes more pronounced. Direct investment (FDI) has no significant effect on renewable energy consumption, creating a negative long-term trend. Urbanization has significant positive and negative dampening effects on new energy consumption in the long term, but no significant short-term effects. Energy consumption and carbon emissions have a significant negative effect. To solve construction and environmental challenges in Indonesia, it is necessary to increase the capacity of renewable energy sources. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70347 10.14710/presipitasi.v23i1.26-37 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 26-37 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 26-37 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70347/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/70347/19047 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/70347/20105 Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/51730 2023-08-18T02:24:32Z presipitasi:RCS

The Effect of the Makassar Tidak Rantasa (MTR) Policy on Environmental Cleanliness in Makassar City Sari, Inrinofita Suswanta, Suswanta Mustari, Nuryanti Policy; MTR; environment1al cleanliness This study aims to prove the research hypothesis regarding the Effect of Makassar Tidak Rantasa (MTR) Policy on Environmental Cleanliness in Makassar City. Measurement of Environmental Hygiene Variables is Communication, Resources, Bureaucratic Structure and Implementation. In this study researchers used quantitative descriptive methods with data sources from questionnaires through google form with 100 respondents, and data processing was carried out using SEM-PLS. The results showed that the R-Square value was 0.902. it can be concluded that the interpretation of Environmental Hygiene is 0.902%, where the R-Square structural model is identified in the strong / good category. Variables to measure the MTR Policy on Environmental Cleanliness are Implementation, Communication, Bureaucratic Sources, Resources. The four variables have a positive and significant effect on the MTR Policy on Environmental Cleanliness, which means that it is accepted with a P value of 0.000, 0.000, 0.039 and 0.035. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51730 10.14710/presipitasi.v20i2.461-470 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 461-470 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 461-470 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51730/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/48473 2023-01-04T02:30:50Z presipitasi:RCS

Affecting Factors of Generation and Weight Domestic Waste in Tanjung Karang Village Mataram City Widiyanti, Astrini Hadi, Taufikul Irvan, Moh. Teknik Lingkungan Urban waste; waste generation; the composition of waste; influencing factors, dummy variable multiple regression Tanjung Karang Village is a priority tourism destination. Strategic tourist destinations need to maintain environmental cleanliness to achieve sustainable waste management to create comfort and satisfaction for visitors. The purpose of this study is to analyze the generation, weight, composition of waste, and influencing factors. The method in this study is a field survey to measure the generation and weight of waste with 13 households sample for 8 days. Data analysis has analyzed the Kolmogorov Smirnov Normality Test and the Dummy Variable Multiple Regression Test. The waste generation in Tanjung Karang Village is 3 liters/person/day and the weight of waste is 0.5 kg/person/day. The composition of the most waste is 56% organic waste. 28% plastic. and the others are metal, B3 waste, paper, glass, and so on. The most widely used plastic waste is food packaging plastic, High Density (HD), and High Density Polyethylene (HDPE). Influencing factors the generation and weight of waste are type of house, number of occupants, land area, occupation, and income. The recommendation for waste management in Tanjung Karang Village is that 56% of organic waste can be processed by composting, ecoenzyme, and biopore holes. Plastic waste 18% can be reduced by using plastic converted into containers. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48473 10.14710/presipitasi.v19i3.607-625 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 607-625 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 607-625 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48473/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11101 2016-05-21T14:19:41Z presipitasi:RVA

ANALISIS PENENTUAN MUTU AIR BEBERAPA SUNGAI DI JAWA TENGAH DENGAN METODE STORET DAN INDEKS PENCEMARAN Huboyo, Haryono Setiyo Nugraha, Winardi Dwi Indah, Rahmah Environmental Engineering Water quality, STORET methods, Pollution Index Methods There  are  some  river  basin  in  Central  Java,  such  as  Gung  River  Basin, Serayu  River  Basin  and Garang River Basin. Many sector that are dependable on the river resources, while on the hand the quality of the river is decreasing because of the waste water pollutant produced by many human or industrial activities. Therefore, proposal study of water class determination can be done by 2 methods according  to  Environmental  Ministry  Decision  No.  115  year  2003 about  Water  Quality  Status Determination Handbook, which are STORET and Pollution Index (PI). Using those two methods will be determined the real water class through comparison between water quality parameter with defined standard according to PP No. 82 year 2001. The usage of these 2 methods often resulting in different output, because of the difference of equal weight from each parameter and the existence constanta of P at Pollution Index (PI) which not clear relevancy. Universitas Diponegoro 2009-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11101 10.14710/presipitasi.v6i2.1-6 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 2 (2009): Vol 6, No 2 (2009); 1-6 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 2 (2009): Vol 6, No 2 (2009); 1-6 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11101/8724

oai:ojs.ejournal.undip.ac.id:article/61218 2025-05-18T20:37:10Z presipitasi:RCS

Allometric equation of Paraserianthes falcataria (L.) and Anthocephalus cadamba Miq. for estimating carbon stocks Werdana, Kinanto Prabu Megantara, Erri Noviar Withaningsih, Susanti Saputra, Yudha Hadiyanto Eka Ilmu Lingkungan Environmental engineering; environment; environmental sciences, Carbon Coal mining can increase land degradation and deforestation, so efforts are needed to ensure land use in post-mining areas. Therefore, mining companies must carry out land reclamation to restore the important function of forests by planting sengon laut (Paraserianthes falcataria (L.)) and burflower tree (Anthocephalus cadamba Miq.). In contrast to mining, which produces emissions and carbon that contribute to global warming, land reclamation helps absorb carbon and produce oxygen for living things. Therefore, a study was carried out to estimate the carbon stocks from reclamation activities at PT. Indobara Borneo. A quantitative approach through Stratified Random Sampling was applied in this study. Carbon estimation is carried out using allometric equations. The allometric equation of Paraserianthes falcataria (L.) is Y = 0.028D2,695, while the allometric equation of Anthocephalus cadamba Miq. is Y = 0.035D2,600. The total carbon stocks for burflower tree plants are 84.51 tons/ha with a CO2 sink potential of 974.73 tons/Ha, while the total carbon stocks for sengon laut plants are 86.18 tons/ha with a CO2 sink potential of 1355.49 tons/ha. The value of CO₂ sink and carbon stock indicates that there are environmental services to restore and improve vegetation. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61218 10.14710/presipitasi.v21i2.609-621 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 609-621 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 609-621 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61218/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/37122 2022-02-16T03:29:41Z presipitasi:RSA

Coconut shell-based activated carbon preparation and its adsorption efficacy in reducing BOD from The Real Wastewater from Kitchen Restaurant (RWKR): Characteristics, Sorption Capacity, and Isotherm Model Yasdi, Yasdi Ussarvi, Dhea Rinaldi, Rinaldi Juita, Febri Cahyani, Shassy Endah Teknik Lingkungan wastewater, BOD, activated carbon, adsorption, isotherm model Real Wastewater from Kitchen Restaurant (RWKR) contains high concentrations of Biochemical Oxygen Demand (BOD) pollutants to pollute the environment. One of the processing alternatives to reduce BOD is the adsorption method using activated carbon from coconut shells. This study aims to determine coconut shell-activated carbon as an adsorbent for the adsorption of organic matter to reduce BOD in RWKR. The method begins with making adsorbents that are activated with activators on HCl 3 M, NaOH 3 M, and H3PO4 M, then a preliminary adsorption test is carried out to select the best activator on coconut shell activated carbon to reduce BOD in RWKR. Determining the optimum conditions for adsorption was carried out by varying pH 3, 4, 5, 6, 7, and 8. Variation of contact time with a stirring speed of 250 rpm, then determined the isotherm model. The remaining organic matter in the wastewater will be measured using a DO meter based on SNI 6989.72: 2009 concerning the method of testing for biochemical oxygen demand (BOD). The results showed that the appropriate activator for coconut shell activated carbon was H3PO4 3 M with an average percentage value of uptake of 89.690%. The adsorption process's optimum pH is at pH 3 with an absorption percentage value of 88.626%. The optimum contact time is at 10 minutes and the adsorption isotherm model used is the Freundlich isotherm with a regression value of R2 = 0.8864. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/37122 10.14710/presipitasi.v18i1.116-130 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 116-130 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 116-130 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/37122/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/37122/7828 Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4926 2013-05-14T23:16:29Z presipitasi:RVA

STUDI PENURUNAN KEKERUHAN DAN TOTAL SUSPENDED SOLIDS (TSS) DALAM BAK PENAMPUNG AIR HUJAN (PAH) MENGGUNAKAN REAKTOR GRAVITY ROUGHING FILTER (GRF) Samudro, Ganjar Rulian E, Raden Abadi e flowrate, detention time, GRF, turbidity, total suspended solids This research investigated the influence of flowrate and turbidity and total suspended solids level to detention time in GRF reactor. The difference of flowrate could produce the difference of turbidity and total suspended solids level at certainly detention time. The research objects were rain water in rain water reservoir and GRF on laboratory bench scale. The research concluded that optimum flowrate is 5 mL/s with 78% reduction efficiency of turbidity and 79%  reduction efficiency of total suspended solids level which was 100 minutes operating. Universitas Diponegoro 2011-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4926 10.14710/presipitasi.v8i1.14-20 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 8, No 1 (2011): Vol 8, No 1 (2011); 14-20 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 8, No 1 (2011): Vol 8, No 1 (2011); 14-20 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4926/4463

oai:ojs.ejournal.undip.ac.id:article/54294 2023-08-18T02:24:32Z presipitasi:RSA

Physical and Chemical Treatability Assessment for Food Industry Wastewater in Wastewater Treatment Plant Design Oktiawan, Wiharyanto Junaidi, Junaidi Raziani, Fadhila Teknik Lingkungan; ilmu Lingkungan; Rekayasa Ilmu Lingkungan Imhoff cone; jar test; rapid mixing; sedimentation; slow mixing; TSS Food industry wastewater has characteristics that contain high organic matter and suspended solids. Most of the methods used are physical and chemical treatment because these methods have high efficiency and effectivity. In designing a new wastewater treatment plant, the treatability assessment is essential to any consideration or reference in planning the treatment process to be implemented. This research aims to obtain treatability assessment results that will be used as consideration in planning treatment units in WWTP according to the characteristics of wastewater tested. The removal results of the sedimentation test with Imhoff Cone were able to remove 51.2% COD, 64.04% BOD, and 95.21% TSS with the optimum settling time of 40 minutes. The samples test continued to the rapid-slow mixing test using the jar test, resulting that by adding coagulant at the optimum dose of PAC 120 mg/L, it was capable to remove 68.21% of COD, 73.22% of BOD, and up to 98.07% of TSS at the end of the process. Based on the assessment results, the physical and chemical treatment can remove suspended solids pollutant parameters with high efficiency so it will be considered to be used in planning Wastewater Treatment Plants for this food industry. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54294 10.14710/presipitasi.v20i2.229-237 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 229-237 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 229-237 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54294/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/17984 2020-04-17T11:35:53Z presipitasi:RSA

Pemodelan Beban Pencemar Non-Point Source Sungai Premulung Segmen Kota Surakarta Rezagama, Arya N, Arief Laila A, Affifah Nadya Setiawati, Lia Teknik Lingkungan Nonpoint Source; Permodelan Beban Pencemar Sungai Premulung Kota Surakarta mendapatkan beban pencemaran dari sumber pencemaran tidak terpusat seperti limbah domestik dan limbah UKM limbah batik. Kualitas air sangat di pengaruhi oleh kondisi daerah aliran sungai di mana penelitian hubungan antara tata guna lahan dan kualitas sungai masih jarang di aplikasikan di Indonesia. Penelitian ini bertujuan untuk mengenalisa besaran beban pencemaran serta membandingkan secara spasial antara wilayah DAS premulung segmen Kota Surakarta. Survei kualitas air dilakukan dengan melakukan sampling 10 titik sepanjang sungai. Analisa spasial penggunaan lahan hasil dijitasi GIS citra Surakarta diolah dalam model BASIN-PLOAD. Berdasarkan hasil uji laboratorium nilai COD, Nitart, Fosfat maupun tembaga, hampir keseluruhan segmen sungai masih dibawah baku mutu Kelas IV menurut  PP no. 82 tahun 2001. Hasil model munjukkan penataan ruang memiliki korelasi yang sangat erat terhadap jumlah beban pencemaran yang masuk menuju sungai. Beban pencemar sumber bukan terpusat akan berhubungan lurus dengan luas wilayah dan area terbagun. Kelurahan Pajang Kecamatan Laweyan memempati urutan teratas dalam jumlah sumber pencemar dengan nilai 95 kg/tahun untuk CU, 1.097 kg/tahun untuk phosphat, 534 kg/tahun untuk nitrat dan 2.042 kg/tahun untuk COD kemudian diikuti Kelurahan Sondakan, Karangasem, dan Purwosari. Prioritas pengelolaan lingkungan Kota Surakarta dapat dibuat berdasarkan nilai beban pencemarannya. Universitas Diponegoro Dinas Lingkungan Hidup Kota Surakarta 2018-03-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/17984 10.14710/jis.%v.%i.%Y.315-325 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 36-45 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 36-45 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/17984/pdf Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/67176 2025-12-04T00:06:38Z presipitasi:RSA

Reclamation of Former Brick Mining Lands: Enhancing Oil Palm Growth Using Goat Manure and Rice Husk Charcoal Maryani, Anis Tatik Sarman, Sarman Rosyani, Rosyani Yardha, Yardha Adri, Adri Atman, Atman Firdaus, Firdaus Saidi, Busyra B Wibowo, Yudha Gusti ilmu Lingkungan rice husk charcoal; coal mining; environment; goat manure; organic fertilizer; reclamation; oil palm This study focuses on the impact of goat manure and rice husk charcoal distribution on oil palm cultivation in former mining lands. The objective is to determine the optimal combination of goat manure and rice husk charcoal that enhances the growth of oil palm plants on these lands. Conducted in Pijoan Village, Muaro Jambi District, Jambi Province in 2021, the research utilized a completely randomized block design with 8 treatments and 3 repetitions, yielding 24 experimental units. The eight treatments consisted of varying ratios of goat manure to rice husk charcoal: (P1) 150 g goat manure + 325 g rice husk charcoal per planting hole, through (P8) 325 g goat manure + 150 g rice husk charcoal per planting hole. Results indicated that the combination of 325 g goat manure + 150 g rice husk charcoal (P8) provided the best outcomes in plant height, stem diameter, leaf balance at the third frond, and total frond count on reclaimed land. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67176 10.14710/presipitasi.v22i1.133-142 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 133-142 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 133-142 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67176/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/67176/17779 Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39505 2022-02-19T00:21:43Z presipitasi:RCS

The Effectiveness of Variations in Contact Time and Density of Water Hyacinth Plants in Reducing COD Level in Tofu Industrial Wastewater Cahyani, Wahyu Rizki Nur Joko, Tri Dewanti, Nikie Astorina Yunita Kesehatan Masyarakat; Ilmu Kesehatan Masyarakat; Kesehatan Lingkungan Water hyacinth; phytoremediation; COD; tofu wastewater Tofu industry X is one of 24 tofu industries in Bandungan, producing wastewater with a high organic matter content of 600 liters per day. The industry does not have a waste treatment plant and is directly discharged into water bodies, leading to environmental pollution. The phytoremediation method uses water hyacinth plants to be inexpensive and efficient. This study aims to see the effectiveness of water hyacinth plants in reducing COD levels in tofu wastewater. The method used quasi-experimental with a pretest-posttest control group design. The independent variables were contact time (2 and 4 days) and water hyacinth plant density (2 individuals/m2, 4 individuals/m2, and 6 individuals/m2), for the dependent variable was a decrease in COD levels tofu wastewater. 39 samples were tested and analyzed by the Kruskal Wallis test. The results showed the effectiveness of reducing COD levels by 78.68% (2 days) and 80.15% (4 days) for a density of 2 individuals/m2, 80.56% (2 days) and 86.58% (4 days) for density of 4 individuals/m2, and 83.79% (2 days) and 87.33% (4 days) for a density of 6 individuals/m2. It can be concluded that water hyacinth plants efficiently reduce COD of tofu wastewater but have not been effective in reducing COD to quality standards. There is a significant difference in reducing the COD levels of tofu wastewater using the treatment methods. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39505 10.14710/presipitasi.v18i3.476-485 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 476-485 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 476-485 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39505/pdf_1 Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10947 2016-05-03T20:23:08Z presipitasi:RVA

EVALUASI PENGELOLAAN SAMPAH RUMAH SAKIT PUSAT ANGKATAN DARAT GATOT SOEBROTO Paramita, Nadia Environmental Engineering hospital waste management, medical waste, incineration, controlled air incinerator Activity in a hospital producing organic and inorganic solid waste.the characteristics of  the solid waste are devided into domestic and medical which have to be destroyed immidiatly, so they wont coused any environmental problems. One way to prevent the danger coused by  those  waste  is  using  the  right hospital  waste  management  from  the  source  until  the destruction parts. In waste management, it is important separate between medical and non medical  waste  from  the  source  than  continue  with  the right  storage,  and  transportation steps.  To  destroy  medical  waste,  controlled  air  incinerator  with multychamber  is recommended  incinerator  technology.  With  two  steps  of  burning  processes  will make complete  combustion.  Experiment  of  medical  waste  incinerator  with  abaout  5 m3 capacitiesshows  the  batch  combustion  system  at  800-1600  ºC  temperature.  Using that incinerator, the volume of this medical solid waste can be reduceduntil ± 67 % and mass reduction until 70-80 %. Universitas Diponegoro 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10947 10.14710/presipitasi.v2i1.51-55 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 51-55 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 51-55 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10947/8638

oai:ojs.ejournal.undip.ac.id:article/57289 2024-06-14T22:00:52Z presipitasi:RCS

Assessment of Cihampelas River Water Quality Status using STORET Method and Pollution Index Ibrahim, Aiman Suhaemi Syawal, Muhamad Sjarmidi, Achmad Aisyah, Siti Sugiarti, Sugiarti Rahmadya, Aldiano Waluyo, Agus Ilmu Lingkungan Pollution index; river; STORET; total phosphorus; water quality The Cihampelas River is one of river that crosses the Regency and City of Bandung, West Java, with a length of 8.5 km. This study aims to assess the water quality status of Cihampelas River based on the STORET method and Pollution Index. The research was conducted at four stations based on the level of anthropogenic activity from July to September 2016. Measurements of the physical and chemical parameters of the waters were carried out five times at two-week intervals. Water quality status was assessed using the STORET method and Pollution Index based on the parameters TDS, TSS, pH, DO, BOD, COD, nitrate, nitrite, ammonia, and total phosphorus (TP). Using the STORET method, shows a score of -20 to -46 in the category of moderately to severely polluted waters. Based on the Pollution Index method, the waters of the Cihampelas River show lightly to severely polluted conditions with a score of 1.14 to 44.66. The water quality status of the Cihampelas River shows a decreasing trend from the upstream to the downstream. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57289 10.14710/presipitasi.v20i3.644-654 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 644-654 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 644-654 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57289/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/24275 2020-04-17T11:38:54Z presipitasi:RSA

Total Coliform Sumber Air Bersih dan Sistem Distribusi Air bersih Rumah Sakit Umum Daerah Ungaran Kabupaten Semarang Total Coliform Sumber dan Sistem Distribusi Air Bersih Rumah Sakit Umum Daerah Ungaran Kabupaten Semarang Sari, Jasmine Purnama Rahardjo, Mursid Joko, Tri Kesehatan Lingkungan RSUD Ungaran; sistem distribusi air bersih; total coliform Kesehatan Masyarakat RSUD Ungaran; Air Bersih; Total coliform RSUD Ungaran menggunakan sumur bor dalam memperoleh air bersih. Total coliform yang terkandung pada sumber air, bak penampung dan ruang Gizi adalah lebih dari 200 CFU/100 ml. Penelitian ini bertujuan untuk mendeskripsikan sumber, sistem distribusi serta efektivitas desinfeksi air bersih. Populasi objek adalah seluruh air bersih RSUD Ungaran, dengan sampel adalah air sumur, bak penampung dan air bersih yang keluar dari kran. Variabel dependen adalah total coliform pada air bersih dan variabel independen adalah kualitas dan kuantitas sumber air, kualitas jaringan distribusi dan dosis desinfektan dengan variabel pengganggu adalah pH dan suhu. Rata-rata pasokan air bersih RSUD Ungaran adalah 2.79 liter/detik. Kapasitas tempat tidur sebanyak 187 dengan kebutuhan 566 liter/tempat tidur/hari. Kebutuhan air bersih rumah sakit 2.48 liter/detik. Kebocoran pipa sering terjadi sehingga menyebabkan bahan pencemar seperti bakteri coliform akibat rembesan septic tank yang berjarak <10 m dengan pipa masuk kedalam air. Penambahan Kalsium Hipoklorit Ca(ClO)2 dosis 10, 15, 20, 25, dan 30 mg/l dengan waktu kontak 30 menit mampu menurunkan total coliform sebesar 98.5% yaitu jumlah rata – rata MPN Coliform kurang dari 3 atau disebut tidak terdapat pertumbuhan mikroorganisme. RSUD Ungaran menggunakan sumur bor dalam memperoleh air bersih. Total coliform yang terkandung pada sumber air, bak penampung dan ruang Gizi adalah lebih dari 200 CFU/100 ml. Penelitian ini bertujuan untuk mendeskripsikan sumber, sistem distribusi serta efektivitas desinfeksi air bersih. Jenis penelitian menggunakan deskriptif observasional dengan rancangan penelitian adalah quasi experiment dengan teknik pretest-postest design with control group. Populasi objek adalah seluruh air bersih RSUD Ungaran, dengan sampel adalah air sumur, bak penampung dan air bersih yang keluar dari kran. Variabel dependen adalah total coliform pada air bersih dan variabel independen adalah kualitas dan kuantitas sumber air, kualitas jaringan distribusi dan dosis desinfektan dengan variabel pengganggu adalah pH dan suhu. Rata-rata pasokan air bersih RSUD Ungaran adalah 2.79 liter/detik. Kapasitas tempat tidur sebanyak 187 dengan kebutuhan 566 liter/tempat tidur/hari. Kebutuhan air bersih rumah sakit 2.48 liter/detik. Kebocoran pipa sering terjadi sehingga menyebabkan bahan pencemar seperti bakteri coliform akibat rembesan septic tank yang berjarak <10 m dengan pipa masuk kedalam air. Penambahan Kalsium Hipoklorit Ca(ClO)2 dosis 10 mg/l,15 mg/l, 20 mg/l, 25 mg/l, 30 mg/l dengan waktu kontak 30 menit mampu menurunkan Total Coliform sebesar 98.5% yaitu jumlah rata – rata MPN Coliform kurang dari 3 atau disebut tidak terdapat pertumbuhan mikroorganisme. Universitas Diponegoro 2019-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24275 10.14710/presipitasi.v16i2.97-105 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 97-105 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 97-105 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24275/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/61648 2025-12-04T00:06:42Z presipitasi:RSA

The Effect of adding Coconut Shells and Corn Husk to Biobriquettes from Fish Bone Waste Nindyapuspa, Ayu Setiani, Vivin Firnanda, Dhea Ayu Teknik Lingkungan Biobriquettes; coconut shells; corn husk; fish bone; pyrolysis Biomass generates a large amount of waste. One of these is fish bones, corn husks, and coconut shells. Fish bone waste has the potential to be used as biobriquettes because it contains 10.16% carbon. To maximize the potential of fish bone waste, it should be mixed with corn husks and coconut shells. In addition, more calories can be added to the biobriquettes.  In the manufacture of biobriquettes, pyrolysis temperature also affects the quality of the resulting biobriquettes. The purpose of this study was to determine the quality of biobriquettes with a mixture of fish bones, corn husks, and coconut shells at 5000C and 3500C. The compositions of the biobriquette materials used in this study were 100% fish bone waste, fish bone:coconut shell waste (50:50), and fish bone waste:corn husk (50:50). The results of the study showed that biobriquettes with a mixture of fish bones and coconut shell 50:50 at a pyrolysis temperature of 350 °C had the best quality according to SNI 01-6235-2000 concerning wood charcoal briquettes. The water content and calorific value were 1.93% and 5,913.6 cal/g, respectively. The addition of coconut shells and corn husks affected the characteristics of biobriquettes made from fish bone waste.  Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61648 10.14710/presipitasi.v22i2.393-404 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 393-404 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 393-404 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61648/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46065 2023-03-29T21:11:54Z presipitasi:RCS

Bus Rapid Transport System in Semarang City: Views of Current Users, Potential Users and Related Emission Huboyo, Haryono Setiyo Handayani, Wiwandari Samadikun, Budi Prasetyo Permadi, Didin Agustian Teknik Lingkungan, Rekayasa Ilmu Lingkungan BRT; emission; route; Semarang; transportation Abating the air emission related to the transportation sector by operation of the Bus Rapid Transport (BRT) system has been adopted in Indonesia. This study was conducted to obtain an overview of the implementation of BRT, the success of shifting private vehicles to BRT, and the number of emissions resulting from the operation of BRT. The study was conducted using a questionnaire and observations in BRT vehicles. A questionnaire survey was conducted randomly across Semarang sub-districts for 701 private vehicles consisting of cars and motorcycles in a parking lot. Questionnaires were distributed to BRT users in the waiting room and among those who left the BRT. The emission quantity is obtained from GPS observations installed in the BRT and quantified by the emission generation equation based on the bus speed. Even though they are not BRT users for daily activities, motorcycle users use BRT more frequently than private car users. For the private car and motorcycle users, the BRT coverage area is the first barrier to using the BRT system, followed by travel time (due to congestion and traffic jams). Based on current BRT users, the shifting of motorcycle users is far higher than private car users. About 30% of public transport users (besides BRT) shift to BRT users. The BRT emissions (CO and TSP) in the east-west corridor on weekdays and weekends are higher than those in the south-north corridor. Based on this study's results, the BRT application has not significantly reduced the use of private vehicles. Instead, shifting occurs from former public transport to BRT. BRT emissions are related to traffic route conditions and topography. BRT implementation needs to comprehensively consider social, economic and technical (infrastructure) aspects.   Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46065 10.14710/presipitasi.v19i2.222-230 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 222-230 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 222-230 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46065/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/29086 2020-12-16T21:04:21Z presipitasi:RSA

Pemanfaatan Kompilasi Bentonit dan Karbon Aktif dari Batubara untuk Menurunkan Kadar BOD dan COD pada Limbah Cair Industri Karet Utilization of Compilation of Bentonite and Activated Carbon from Coal to Reduce BOD and COD Levels in Rubber Industrial Wastewater Naswir, Muhammad Yasdi, Yasdi Chaniago, Muhammad Akbar Wibowo, Yudha Gusti Teknik Lingkungan BOD, COD, Batubara, Karbon Aktif Environmental Engineering BOD; coal; COD; activated carbon Industri karet telah menghasilkan limbah cair yang berbahaya bagi lingkungan sehingga diperlukan upaya pengolahan. Penelitian ini bertujuan untuk mengetahui kemampuan kompilasi bentonit dan karbon aktif yang terbuat dari batubara sebagai adsorben untuk penjerapan parameter limbah cair industri karet. Adapun hasil uji parameter limbah karet didapatkan bahwa kadar BOD (Biochemical Oxygen Demand) 805 ppm, COD (Chemical Oxygen Demand) 1415 ppm, amonia 12,5ppm, TSS 340 ppm, pH 6,60. Proses aktivasi bentonit dilakukan dengan manggunakan HCL 0,1 M, kemudian diaduk selama 1 jam dengan kecepatan 200 rpm lalu disaring residu yang dihasilkan dipanaskan dengan suhu 110oC selama 3 jam. Proses aktivasi karbon aktif dilakukan dengan menggunakan H3PO4 0,2 M lalu direndam selama 24 jam, kemudian dicuci dengan aquades sampai pH mendekati netral, dikeringkan dalam oven pada suhu 150 oC. Waktu kontak terbaik pada kompilasi bentonit dan karbon aktif dari batubara sebanyak 0,1 gram (1:1) dengan 250 ml limbah cair industri karet adalah 60 menit dengan efisiensi penjerapan BOD 99,75% dan COD 98,72%. Kompilasi terbaik bentonit dan karbon aktif dari batubara dalam penjerapan BOD & COD terdapat pada perbandingan kompilasi (1:1) dengan efisiensi penjerapan BOD 99,75% dan COD 98,72%. This study aims to determine the ability of compilation of bentonite and activated carbon made from coal as adsorbents for adsorption of the parameters of the rubber industry wastewater. The test results found that the levels of BOD (Biochemical Oxygen Demand) 805 ppm, COD (Chemical Oxygen Demand) 1415 ppm, Ammonia 12.5 ppm, TSS 340 ppm, pH 6.6. The process of activation of bentonite using HCL 0.1 M. then stirred for 1 hour at a speed of 200rpm then filtered the resulting residue is heated to a temperature of 110oC for 3 hours. Activation of activated carbon is carried out using 0.2 M H3PO4 and then soaked for 24 hours, then washed with distilled water until the pH approaches neutral, dried in an oven at 150oC. The best contact time for bentonite and activated carbon compilation from coal is 0.1 gram (1: 1). With 250 ml of rubber industry, liquid waste is 60 minutes with a BOD absorption efficiency of 99.75% and COD of 98.72%. The best compilation of bentonite and activated carbon from coal in the adsorption of BOD & COD is in the compilation ratio (1: 1) with an efficiency of 99.75% BOD absorption and 98.72% COD. Universitas Diponegoro 2020-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29086 10.14710/presipitasi.v17i2.121-127 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 121-127 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 121-127 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29086/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/71720 2025-12-13T04:17:17Z presipitasi:RCS

Analysis of Pore Water Pressure and Seepage During The Impounding Stage of Randugunting Dam Fatimah, Illya Nur Hidajat, Wahju Krisna Santi, Narulita Actual instrumentation; finite element method; pore water pressure; Randugunting Dams; seepage Piping induced by seepage poses a significant risk to the stability of Randugunting Dam, located in Blora Regency, Central Java. This study aims to assess the geological and engineering geological conditions of the study area and to analyze the behavior of pore water pressure and seepage during the impounding stage. The methodology includes geological and engineering geological mapping, as well as field monitoring using instruments such as vibrating wire piezometers, v-notch, and observation wells. These field results were then compared with Finite Element Method (FEM) analysis conducted in GeoStudio SEEP/W 2018. The pore water pressure values derived from FEM analysis were generally higher than the actual values recorded by the piezometers. Groundwater levels observed in the wells showed a strong correlation with rainfall intensity. The actual seepage discharge measured at the v-notch was 0.000118 m3/sec, whereas the FEM analysis yielded a significantly higher discharge of 0.01271 m3/sec. Despite this, the measured discharge remains within safe limits, being less than 0.016 m³/s (2% of inflow) and below 0.14 l/min/m. Nevertheless, the higher discharge indicated by FEM analysis suggests a potential risk of piping that warrants attention. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/71720 10.14710/presipitasi.v22i3.881-892 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 881-892 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 881-892 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/71720/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46784 2023-01-04T02:30:50Z presipitasi:RVA

Environmental Sustainability: How Greenpeace Id Conducts Campaigns Regarding Plastic Waste Management through Social Media in Indonesia Sari, Inrinofita Purnomo, Eko Priyo Suswanta, Suswanta Mustari, Nuryanti Teknik Lingkungan Greenpeace id; campaign; handling plastic waste; social media Indonesia is estimated to be one of the largest plastic-producing countries in the world. The high use of plastic will cause people to become dependent on plastic. However, dependence on plastic has a destructive impact, which makes plastic potentially harmful to human health and the environment; Greenpeace shares this concern and makes it the basis for organizing a campaign. This study aims to analyze and see how the Greenpeaceid account interacts with Twitter social media accounts through mentions and hashtags used to drive for handling plastic waste in Indonesia. This study uses qualitative research, which uses Q-DAS (Qualitative Data Analysis Software) to analyze the data; the software used is Nvivo 12 Plus. The result of this research is that Greenpeaceid uses social media as a media campaign related to the issue of plastic waste pollution. The social media used by Greenpeace is twitter; on this social media, the form of a campaign is carried out by using #Pantangplastik and #Breakfreefrompalstic, which contains various documentation related to suitable actions in managing plastic waste so that the environment is not polluted again. The existence of the #Pantangplastik Campaign will gradually reduce the use of plastic waste. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46784 10.14710/presipitasi.v19i3.510-519 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 510-519 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 510-519 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46784/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11010 2016-05-05T01:28:38Z presipitasi:RVA

KAJIAN UPAYA KONSERVASI SUMBER DAYA AIR DALAM PENINGKATAN KESADARAN MASYARAKAT Sarminingsih, Anik Environmental Engineering Decreasing of water availability, water conservation . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11010 10.14710/presipitasi.v5i2.42-48 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 42-48 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 42-48 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11010/8694

oai:ojs.ejournal.undip.ac.id:article/61749 2025-05-18T20:37:10Z presipitasi:RCS

Determining the Location of Solar Power Plant in Indonesia Using Fuzzy-AHP TOPSIS Pratami, Putri Monika Iskandar, Yelita Anggiane Rachmawati, Nur Layli Solar power plant; renewable energy; location criteria; Fuzzy-AHP; TOPSIS Solar is a promising renewable energy source for Indonesia's increasing electricity demand, which grows at the rate of 3.3% annually. However, high investment costs and unclear policies hinder Solar Power Plant (SPP) development. Considering the potential for growth in energy demand and the low long-term operational costs, it is imperative to foster SPP expansion in Indonesia. This study aims to identify location criteria and potential SPP development sites in Indonesia. We employ Multi-Criteria Decision-Making (MCDM) combining Fuzzy-AHP and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) methodologies to assign criteria weights and prioritize alternative SPP locations. Results show that, from all respondents using the geometric mean in the Fuzzy Analytic Hierarchy Process (AHP), it is found that the Economic criteria give the highest weight at 31%, and subcriteria of Land Availability, Peak Sun Hours, Geographic Location, Distance from Transportation Networks, Construction Costs, and Government Regulations contribute significantly. The ranking of alternative solutions indicates that South Sumatra Province holds the highest priority for SPP development with a 0.572 score, closely followed by North Sumatra at 0.571 Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61749 10.14710/presipitasi.v21i2.543-557 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 543-557 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 543-557 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61749/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/34854 2022-02-16T03:29:41Z presipitasi:RSA

Maximum Consumption Limits of Fish Catches Tainted by Lead (Pb) in 3 Fish Auction Markets (FAM) in Cilacap, Indonesia Fitriana, Devi Sukmawati, Sukmawati Rochman, Nur Royani, Royani Prasadi, Oto Triwuri, Nurlinda Ayu Fadlilah, Ilma Environmental science Lead (Pb), maximum consumption limit, MTI. Heavy metals produced by the industrial sector in Cilacap will contaminate the waters and impact the organisms in them, which will affect the condition of humans as consumers. The purpose of the importance of this research activity is to compare the type of fish and the value of heavy metal Pb with the quality standards of the Ministry of Environment No.51 of 2004, BPOM Regulation 2009 and SNI 7387 of 2009, as well as knowing the maximum consumption limit of consumption fish catches to control the pattern eat fish indicated heavy metals. The method used is a comparative description with survey techniques in 3 locations where fish auctions (FAM) and Pb level analysis using the AAS method. The types of fish with the highest level of consumption in Cilacap are kembung, tuna and tongkol. The Pb level of kembung, tuna and tongkol passes the threshold> 0.4 ppm from SNI 7387-2009 and BPOM 2009, namely 0.7 ppm, 2.9 ppm, and 2.3 ppm, respectively so it is essential to have a consumption limit per week through Tolerable Maximum Intake (MTI) with categories for adults and children for the consumption of each type of fish consumption. Research shows that the maximum consumption limit for adults in kembung, tuna and tongkol is 16.9 kg, 2.8 kg, and 9.2 kg, respectively. Meanwhile, the maximum limit of consumption of kembung, tuna and tongkol for children is 6.4 kg, 1 kg, and 2.9 kg, respectively. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34854 10.14710/presipitasi.v18i1.21-27 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 21-27 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 21-27 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34854/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/83116 2026-05-06T11:31:14Z presipitasi:RSA

Granulated Biochar–MMT–Zn/Al LDH Composite as a Durable Adsorbent for Column Applications Fadhilah, Rahmat Enjelika, Destria Anwar, Dedy Sudibyo, Sudibyo Rinovian, Asnan Safitri, Hana Fujianti, Lia Nurbanillah Devitriano, Dodi Syarifuddin, Hutwan Maryani, Anis Tatik Wibowo, Yudha Gusti Ilmu lingkungan; teknik lingkungan Adsorbent; composite materials; environmental remediation; wastewater treatment Granular adsorbents are essential for fixed-bed column systems because they reduce the pressure drop and minimize the material loss commonly associated with powdered adsorbents. However, transforming powdered materials into mechanically stable granules without compromising their structural integrity remains a significant challenge. In this study, a granulated composite consisting of biochar, montmorillonite (MMT), and Zn/Al layered double hydroxide (LDH) was developed as a potential adsorbent for column application. Biochar derived from Avicennia marina biomass was combined with MMT and Zn/Al LDH to produce a composite material, which was subsequently granulated using bentonite, tapioca starch, and polyvinyl alcohol (PVA) as binding agents. The resulting granules (0.5–1.5 cm in diameter) were evaluated for mechanical durability under static water immersion and dynamic water flow conditions. The results indicate that the binder composition strongly influences granule stability. Granules prepared without PVA rapidly disintegrated in aqueous environments, whereas the inclusion of PVA significantly improved structural durability. The optimized formulation exhibited durability of up to 8208 min under static conditions and maintained its structural integrity under continuous water flow. These results demonstrate the potential of Biochar–MMT–Zn/Al LDH granules as durable adsorbents for fixed-bed column water treatment systems Universitas Diponegoro 2026-05-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/83116 10.14710/presipitasi.v0i0.%p Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Article in Press 2026 (For Upcoming Issue) Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Article in Press 2026 (For Upcoming Issue) 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/83116/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/70532 2025-12-13T04:17:17Z presipitasi:RVA

Key Factors in Improving the Sustainable Performance of Urban Drinking Water Services Agustin, Meilan Moengin, Parwadi Sari, Emelia Rinanti, Astri Abu, Mohd. Yazid Teknik Industri Urban water; sustainable development; water service; bibliometric Water is a basic element for human survival, yet although 71% of the Earth's surface consists of water, only 1% of it is accessible to humans. Climate change, urbanization, and environmental issues are challenges experienced by the efforts of drinking water services in urban areas. In addition to providing sufficient drinking water, drinking water services must also pay attention to energy use and carbon emissions. This study aims to determine the factors that impact the sustainable performance of drinking water services in urban areas. The research method was conducted using bibliometric analysis. The analysis was conducted on 50 reputable articles with a publication period of 2013-2023, with the keywords urban water and municipal water. According to previous research, the water supply system in urban areas can be divided into three sub-systems: raw water, water treatment, and distribution. If associated with sustainability, the factors can be divided into economic factors, such as affordability, continuity, and quantity. Environment: pollution and carbon emissions. Social: accessibility and customer behavior. Most previous studies have focused only on economic aspects, further studies are needed to integrate all these factors into a performance measurement system to help decision-makers align strategic targets into operation level activities. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70532 10.14710/presipitasi.v22i3.712-722 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 712-722 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 712-722 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70532/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/50538 2023-04-08T21:36:46Z presipitasi:RCS

Marine Debris Mitigation Strategy in Supporting the Development of Sustainable Tourism in SEZ Mandalika Lombok Widiyanti, Astrini Akraboe Littaqwa, Lalu Auliya Jefri, Edwin tenik lingkungan Marine debris; mitigation strategy; tourism destination; SEZ Mandalika; SWOT quantitive Concerns about increasing marine debris at priority tourist destinations in SEZ Mandalika require a comprehensive mitigation strategy. The purpose of this study is to analyze the characteristics of marine debris on three different types of beaches and to analyze marine debris mitigation strategies. Data collection was conducted by field survey with a transect methode. Marine debris mitigation strategies are identified quantitative SWOT analysis. Characteristics of macro marine debris at Tanjung Aan Beach based on the amount dominated 41% plastic. Meso marine debris is dominated by plastic foam in the form of white cork 48%. In the fishing area, the characteristics of marine debris is dominated type of cloth material 52% in the form of fishing thread and other fabrics. Meso marine debris in the fishing area dominated 45% in the form of white cork flakes. Characteristics of macro marine debris at Batu Berang Beach, it was found that fabric waste dominated 42%. Meso waste in Batu Beach is dominated 60% plastic. The alternative strategy that the highest score (2.99) is the sorting of organic and non-organic waste in various coastal typologies by visitors with the preparation of facilities and infrastructure by the tourism management or village government. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50538 10.14710/presipitasi.v20i1.53-66 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 53-66 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 53-66 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50538/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/50538/12185 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/50538/12186 Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/16015 2020-04-17T11:34:51Z presipitasi:RSA

Kesetimbangan Energi dan Manfaat dalam Aplikasi Produksi Bersih di Sistem Pengolahan Limbah Cair Industri Nanas Kaleng Andarani, Pertiwi Sari, Mega Mutiara Siallagan, Afni teknik lingkungan, lingkungan, produksi bersih, biogas industri pengolahan nanas, produksi bersih, biogas, NER, NEP Industri pengolahan buah umumnya memiliki kadar organik yang tinggi, Salah satunya adalah industri pengolahan nanas. PT Great Giant Pineapple, Lampung, (PT GGP) merupakan produsen nanas kaleng ekspor yang menghasilkan limbah yang berpotensi mencemari lingkungan apabila tidak dikelola dengan baik. Salah satu upaya pengelolaan lingkungan dan perbaikan berkelanjutan, PT GGP berupaya melaksanakan sistem produksi bersih. Produksi bersih merupakan suatu strategi pengelolaan lingkungan yang bersifat preventif dan terpadu yang perlu diterapkan secara terus menerus pada proses produksi dan daur hidup produk dengan tujuan megurangi resiko terhadap manusia dan lingkungan. Tujuan dari penelitian ini adalah untuk menganalisis kesetimbangan energi dan manfaat secara kuantitatif dalam penerapan sistem produksi bersih di sistem pengolahan limbah cair PT GGP. Kesetimbangan energi dianalisis dengan menggunakan indikator NER (Net Energy Ratio) dan NEP (Net Energy Production). Manfaat finansial dari penggunaan kembali sludge juga dievaluasi secara kuantitatif. Dalam produksi biogas jumlah energi input yang dibutuhkan sebesar 1,002 MJ/hari/m3 air limbah, menghasilkan jumlah energi output sebesar 108,587 MJ/hari/m3 air limbah. Sehingga Nilai NER = 108,37 dan NEP = 17,585 MJ/hari/m3 air limbah. Sementara itu, dengan pemanfaatan Sludge atas perusahaan memperoleh keuntungan sebesar Rp 3.326.687.65/hari dan pemanfaatan sludge bawah memperoleh keuntungan sebesar Rp 19.054.592 /hari pada tahun 2015. Universitas Diponegoro PT Great Giant Pineapple Lampung 2017-11-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16015 10.14710/presipitasi.v14i2.75-80 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 75-80 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 75-80 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16015/pdf Copyright (c) 2017 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/64665 2025-05-18T20:39:07Z presipitasi:RSA

Application of Local Microorganisms in the Composting Process using the Biopori Absorption Hole Method on the Content of Macro and Micronutrients Aeni, Qurotul Sumiyati, Sri Sarminingsih, Anik Teknik Lingkungan Biopore infiltration holes; compost; macro micro nutrients; local mycoorganisms Organic waste can be used to make compost. One method of composting is by using Biopore Absorption Holes. Processing organic waste into compost can be done by adding local microorganisms (MOL) as bioactivators with varying MOL doses (0,25,50,175,100,125) % for every 5kg of food waste and vegetable waste categories. Composting process uses biopori absorption hole method with a depth of 80cm and diameter of 6 inches. MOL can be made from vegetable or fruit waste because the materials used are simple and easy to obtain. In the composting process, addition of MOL can increase the content of macro and micro nutrients. This research aims to determine the effect of reducing volume of compost and analyze the content of C, N, P, K, Fe, and Zn, from the composting process with different MOL doses and types of waste that have been determined. The research results showed that C, P, Fe and Zn tests had met the quality standards, while N and K tests had not met the quality standards. It can be concluded that the most effective activator dose is 25ml/L in food waste category because the compost produced meets the quality standards of SNI 19-7030-2004 concerning Compost Specifications from Organic Waste.  Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64665 10.14710/presipitasi.v21i3.759-772 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 759-772 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 759-772 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64665/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/38398 2022-02-19T00:21:43Z presipitasi:RSA

Using Kamishibai Media in Thematic Learning to Increase Students' Knowledge of Environmental Education Rachman, Indriyani Rohmawatiningsih, Wati Yayoi, Kodama Teknik Lingkungan Kamishibai; students’ knowledge of EE; students’ memory Global environmental damage emphasizes the importance of environmental education at schools. It is a tool for achieving sustainable development. Environmental education (EE) is integrated into several core subjects in the Indonesian primary school curriculum as a thematic learning. For the teachers, it is essential to be aware of planning and designing appropriate learning methods based on the physical, emotional, and cognitive stages primary students. Kamishibai seems suitable for EE learning at primary school. It can help students to understand EE content. The aim of this study was to analyze using Kamishibai in thematic learning to increase the students' knowledge of EE. The method used in this study was pre-experiment with the research design of the one-group pretest-posttest design. Nine 5th grade students participated in the study. To determine the students’ knowledge of EE, a test was administered before and after the Kamishibai implementation. As a result of the analysis, it was found that, after the implementation, the students’ knowledge of EE was higher than before implementation. The result also showed the students’ ability in retelling the story at the end of the Kamishibai implementation. These indicated that Kamishibai strengthened students' memory. In conclusion, Kamishibai increased students' knowledge of EE. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/38398 10.14710/presipitasi.v18i3.377-385 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 377-385 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 377-385 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/38398/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10938 2016-05-03T19:45:10Z presipitasi:RVA

STUDI PENGARUH PENCAMPURAN SAMPAH DOMESTIK, SEKAM PADI, DAN AMPAS TEBU DENGAN METODE MAC DONALD TERHADAP KEMATANGAN KOMPOS Zaman, Badrus Sutrisno, Endro Environmental Engineering Compost, Rice Bran, Garbage, Cane Pulp, C/N Ratio This research using the domestic organic garbage which is mixed by rice bran and cane pulp, with the variation of mixing pursuant to ratio C/N and moisture is, cane pulp : domestic organic garbage equal to 1:4, 2:7, rice bran : domestic organic garbage, 1:4, 2:7, and also the mixture cane pulp : domestic organic garbage : rice bran, 2:10:2, 1:7:1. Conduct attempted by aerobic and Mac Donald method. So that pursuant to the research can be taken conclusion that mixing lock  up  the  rice  bran  and  cane  pulp with the  domestic  organic  garbage  is  slow  down  the compost maturity so that unnecessary of cane pulp mixing and rice bran of at domestic organic garbage  composting,  compost  quality  of  result  of  mixing as  according  to  value  of  compost quality  at  SNI  19-7030-2004.  Composition  which  it faster  the compost  maturity  is  control  and composition which it has good ratio C/N from 6 variation is variation AS 27 which it consists of two cane pulp and seven domestic organic garbage. Universitas Diponegoro 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10938 10.14710/presipitasi.v2i1.1-7 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 1-7 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 1-7 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10938/8629

oai:ojs.ejournal.undip.ac.id:article/52070 2024-06-14T22:00:52Z presipitasi:RSA

Thermal Comfort and Cognitive Performance under Glass Facade Buildings Rizkiyah, Ega Mahachandra, Manik Purwaningsih, Ratna Prastawa, Heru Budiawan, Wiwik Glass facade; tropical humid; internal environment; thermal comfort; cognitive performance Glass is one of the most adaptable modern materials. However, the use of glass can have unfavorable effects such as glare, heat, and discomfort. This study focuses on the issue of designing contemporary glass buildings and facades in humid tropical environments to evaluate the thermal comfort of building occupants and assess its effects on the completion of cognitive tasks. The Wet-Bulb Globe Temperature (WBGT) parameter was used to measure thermal comfort, and the ASHRAE (American Society of Heating, Refrigerating, and Air-Conditioning Engineers) scale was used to assess thermal comfort perception. The Montreal Cognitive Assessment was used to assess eight female respondents’ cognitive abilities, and the cut-off point was 26. The WBGT has a temperature range of 25, 54°–28, 83°C, in terms of thermal sensation, 54% of respondents feel hot and 62% are uncomfortable. In the completion of cognitive tasks, 75% received a score of less than 26. The results show that there is an effect of thermal comfort on cognitive performance. Due to respondents feeling uncomfortable in high-rise buildings with glass facades, as well as with cognitive outcomes that are below the cut-off point, recommendations for improvement are needed to increase thermal comfort, such as double glass facades. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52070 10.14710/presipitasi.v20i3.523-533 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 523-533 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 523-533 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52070/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/52070/13096 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/52070/13097 Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/22367 2020-04-17T11:37:54Z presipitasi:RSA

Penentuan Rasio Bahan Sampah Organik Optimum Terhadap Kinerja Compost Solid Phase Microbial Fuel Cells (CSMFCs) Ariyanti, Meishinta Samudro, Ganjar Handayani, Dwi Siwi Teknik Lingkungan bahan sampah, kinerja CSMFCs, pengomposan, bioelektrik Compost Solid Phase Microbial Fuel Cells (CSMFCs) merupakan teknologi pengomposan yang diintegrasikan dengan sistem MFCs untuk menghasilkan kompos dan produksi biolistrik dari sampah padat organik. Penelitian ini bertujuan untuk meningkatkan kinerja CSMFCs melalui penerapan perlakuan optimal dari penelitian terdahulu seperti, kadar air 60%, volume sampah 2/3 reaktor, dan penambahan bioaktivator. CSMFCs dalam penelitian ini dilakukan dalam kondisi batch menggunakan reaktor tipe single chamber dan dual anode graphene. Sampah daun dan sampah sisa makanan digunakan sebagai substrat dalam studi ini. Bahan sampah tersebut divariasikan berdasarkan rasio bahan (sampah daun:sampah sisa makanan) yaitu 100:0, 0:100, dan 50:50. Hasil penelitian ini menunjukan kinerja CSMFCs yang optimum terdapat pada variasi sampah campuran keduanya dengan rasio bahan 50:50. Variasi ini dapat menghasilkan kompos yang baik, yaitu memenuhi SNI 19-7030-2004, serta produksi listrik yang cukup tinggi yaitu power density 41,6 mW/m2, coulombic efficiency 0,647% dan energy efficiency 0,0127%. Universitas Diponegoro 2019-06-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22367 10.14710/presipitasi.v16i1.24-28 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 24-28 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 24-28 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22367/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/66227 2025-12-04T00:06:42Z presipitasi:RCS

Analysis of Irrigation Water Balance in Garum and Jatisari Irrigation Area, Ngajum, Malang Regency Qomariyah, Dhea Nur Masitoh, Ferryati Teknik lingkungan, Teknik Pengairan, Geografi Water balance; Garum Irrigation area; Jatisari Irrigation area The irrigation water requirement must be balanced with the available water to support plant growth and increase agricultural production. Therefore, information regarding the amount of water needed and its availability is essential for irrigation activities. This research analyzed the water flow availability at the Garum DAM intake using the Weibull method, irrigation water requirement in the Garum and Jatisari irrigation areas using Cropwat 8.0 software (Penman-Monteith Method), and water balance between water availability and the irrigation water requirement of the Garum and Jatisari irrigation areas using a comparative method. The data used included intake flow, climate, rainfall, soil, and plant data. The results of this study show that the water flow available at the Garum DAM intake tends to be high in the rainy season and will tend to be lower in the dry season. Furthermore, the water requirement in the Garum and Jatisari irrigation areas tends to be high during the dry season and decreases during the rainy season. The water balance shows that the water available at the Garum DAM intake cannot fulfill the irrigation water requirement of the Garum and Jatisari irrigation areas. This is because of the lack of a water deficit in certain months. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66227 10.14710/presipitasi.v22i2.448-463 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 448-463 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 448-463 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66227/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/66227/18339 Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/45539 2022-12-14T20:16:03Z presipitasi:RVA

Risk Factors Associated with Symptoms of Respiratory Disorders in Brick Industry Workers: Literature Review Ramadhansyah, Muhammad Fadli Setiani, Onny Budiyono, Budiyono Kesehatan Masyarakat; Kesehatan Lingkungan; Kesehatan Lingkungan Industri Risk Factos; Symptoms of Respiratory Disorder; Brick Industry Making bricks is an informal home industry with a significant dust exposure risk. Numerous risk factors contribute to respiratory symptoms, including dust exposure, duration of exposure, length of work, type of job, usage of Personal Protective Equipment (PPE), and smoking behaviours. This study examined the association between dust exposure and risk variables for respiratory symptoms in employees in the brick sector. Article searches were carried out through PubMed, Scopus, ProQuest, Science Direct, Portal Garuda Indonesia, Sinta, and Google Scholar. The articles were selected with the following criteria: the dependent variable was symptoms of the respiratory disorder of brick industrial workers, the independent variable was the exposure to dust, open access to full text, and the articles selected with a publication date around 2011-2021. Based on 272 relevant articles, 21 main articles fulfil the criteria. The risk factors indicated above are associated with increased respiratory symptoms, such as reduced vital lung capacity, coughing, shortness of breath, asthma, bronchitis, headaches, and body pains. Recommendations that can be given include adopting a healthy lifestyle that includes regular exercise, appropriate relaxation, abstinence from tobacco, frequent health checkups, and personal protective equipment such as masks. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45539 10.14710/presipitasi.v19i1.1-10 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 1-10 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 1-10 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45539/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/45539/10434 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10969 2016-05-05T04:32:12Z presipitasi:RVA

PENGARUH GRADIEN KECEPATAN DAN DISSOLVED OXIGEN TERHADAP PENYISIHAN COD DAN NH3 DENGAN SIMULTANEOUS NITRIFICATION DENITRIFICATION PADA SISTEM LUMPUR AKTIF Junaidi, Junaidi Environmental Engineering GAC, activated sludge, COD, ammonia, nitrification, denitrification, SND . Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10969 10.14710/presipitasi.v4i1.30-36 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 30-36 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 30-36 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10969/8660

oai:ojs.ejournal.undip.ac.id:article/56538 2025-05-18T20:36:13Z presipitasi:RSA

Experimental Investigation of by-Product Hydrogen Gas in the Harvesting Process of Dunaliella salina using a Non-Sacrificial Cathode Purwono, Purwono Hadiyanto, Hadiyanto Christwardana, Marcelinus Widayat, Widayat Budihardjo, Mochamad Arief ilmu Lingkungan Electrocoagulation; hydrogen gas; non-sacrificial electrode, Dunaliella salina Hydrogen gas is considered a pollution-free fuel in the future. However, the EC process using these non-sacrificial electrodes requires further research especially for the production of dissolved hydrogen gas and the efficiency of microalgae harvesting. The purpose of this study was to investigate the concentration of dissolved hydrogen gas produced from the harvesting process of Dunaliella salina microalgae species using EC and ORP concentrations including pH, harvesting efficiency due to voltage variations and harvesting time using EC with non-sacrificial electrodes. D salina harvesting using EC reactor made of cylindrical borosilicate glass. Spiral-shaped type 304 stainless steel (non-sacrificial) serves as the cathode and solid cylindrically-shaped Fe serves as the anode. The voltage set varies between 16, 18, and 20 Volts, while the electrolysis time is varied between 1.3.5 minutes. The results showed that the highest dissolved hydrogen concentration of 820 ppb (0.820 ppm) produced from the EC process used 18 V for 3 minutes. The volume of gas could not be measured because most of the hydrogen gas was dissolved in the D salina culture, so it was not enough to evaporate within 3 minutes. The maximum ORP concentration of -413 mV resulting from the EC process uses 18 V for 3 minutes. When hydrogen gas is present in a solution, it can decrease the ORP value of the solution. At EC time with non-sacrificial electrodes for 5 minutes managed to harvest D salina 50.79%; 61.90%; 74.60% at voltages of 16 V, 18V, and 20 V respectively.  Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56538 10.14710/presipitasi.v21i1.80-89 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 80-89 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 80-89 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56538/xml Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/73318 2025-12-13T04:17:17Z presipitasi:RCS

Flood Hazard Mapping via High-Resolution Imagery Rohman, Arif Nuha, Muhammad Ulin Wibowo, Yudha Gusti Sigalingging, Roy Chandra P. Jumadi, Jumadi Zamzami, Hamza Ait Ibrahim, Mohd Hairy Teknik Lingkungan Digital surface models; flood risk management; hydrological modelling; impervious surfaces; urban flooding Urban flooding in low-lying coastal zones like Way Lunik, Bandar Lampung, presents a growing challenge driven by rapid land use change, degraded infrastructure, and limited hydrological planning. This study combines high-resolution UAV-derived Digital Surface Models (DSM), national elevation data (DEMNAS), satellite imagery, and field-based drainage surveys to analyze flood risk in the Way Lunik watershed. Hydrological modeling shows that the watershed acts as a terminal catchment with low slopes and only two main discharge points, making it prone to runoff accumulation and tidal backflow. Significant mismatches between modeled and observed drainage patterns stem from blocked channels, informal settlements, and outdated infrastructure. Land cover analysis (2017–2023) reveals substantial growth in impervious surfaces, especially over former green or agricultural areas, increasing runoff and decreasing infiltration. Field surveys confirm drainage blind spots, unplanned flow paths, and encroached outlets in industrial and residential zones. The study also maps building types and clusters of flood-prone areas, often overlapping with marginalized neighborhoods and public facilities. By integrating elevation data, UAV imagery, and ground mapping, this research provides a spatially detailed assessment of urban flood hazards, emphasizing the importance of watershed-scale planning, infrastructure renewal, and the role of UAVs in adaptive flood risk management. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/73318 10.14710/presipitasi.v22i3.751-765 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 751-765 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 751-765 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/73318/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/47586 2023-03-29T21:11:54Z presipitasi:RVA

Adsorption of Dyes Using Graphene Oxide-Based Nano-Adsorbent: A Review Rahman, Danar Arifka Helmy, Qomarudin Syafila, Mindriany Gumilar, Andri Teknik Lingkungan; Ilmu Lingkungan; Rekayasa Air Limbah Dye; graphene oxide; modification; nano adsorbents Graphene Oxide (GO) based adsorbents have attracted much attention from researchers because there have been many reports that they are effective for removing dyes from aqueous environments. That is because GO has good mechanical, electrical, optical and chemical properties, so graphene and its derivatives, such as graphene oxide, have been used in various applications in the field of environmental management. Modifying GO into nano size is an effort to improve its performance in removing dyes. This review uses a database from Science Direct, Google Scholar and Springer, which was screened using graphene oxide, pigments, adsorption and nano adsorbent. The performance of the nano adsorbent showed quite good results in the removal of dyes. The isotherm model suitable for adsorption varies between Langmuir, Freundlich and Redlich-Peterson isotherms. Pseudo-second-order (PSO) is the best model to explain the adsorption process kinetics. Nano-adsorbent modification can be reused at least five times with a reduced adsorption capacity of 4-8%. Studies related to adsorption with GO-based nano adsorbents show promising results in pollutant removal. Still, aspects such as synthesis method, surface functional groups interaction and dye ions and the stability of synthesis products need to be investigated further. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47586 10.14710/presipitasi.v19i2.384-397 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 384-397 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 384-397 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47586/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11001 2016-05-04T22:21:53Z presipitasi:RVA

EVALUASI INSTALASI PENGOLAHAN LINDI TEMPAT PEMBUANGAN AKHIR PUTRI CEMPO KOTA SURAKARTA Hardyanti, Nurandani Huboyo, Haryono Setiyo Environmental Engineering Leachate, leachate quality, design, leachate treatment . Universitas Diponegoro 2009-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11001 10.14710/presipitasi.v6i1.52-56 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 52-56 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 52-56 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11001/8685

oai:ojs.ejournal.undip.ac.id:article/60802 2025-05-18T20:37:10Z presipitasi:RSA

Characterization of Fecal Sludge Combined with Sawdust as Briquettes Wulandari, Suci Komala, Puti Sri Raharjo, Slamet Environmental Engineering Bio-solid fuel; briquettes; characterization; fecal sludge; sawdust This study aimed to characterize fecal sludge (FS) combined with sawdust (SD) as non-charcoal briquettes. The combination consists of var.1 (FS 75% : SD 25%), var.2 (FS 50% : SD 50%), and var.3 (FS 25% : SD 75%). Fecal sludge was obtained from the sludge drying bed of a fecal sludge treatment plant (FSTP) in Malang City, and sawdust was obtained from the furniture workshop. Labor scale briquettes were produced, measured and analyzed the calorific value (ASTM D 5865-01), proximate analysis (SNI 06-3730-1995 and SNI 01-6235-2000), sulfur (ASTM D3177), and density (SNI 8021-2020). The characteristic results the moisture content 3.26%-7.57%, volatile matter 48.68%-68.97%, ash content 12.02%-32.97%, fixed carbon 11.44%–26.62%, calorific value 4,237.78–5.158.64 cal/g, sulfur 0.23%–0.41%, and density 0.50-0.68 (g/cm3). Compared with pure fecal sludge briquettes, the addition of sawdust increased the calorific value of fecal sludge briquettes by up to 32% and decreased ash content by up to 40%. All variations met the standard of SNI 8021:2020, except for the density for var.2 and var 3. Based on MCA, the best variation is var.2 with a score of 45 and requires modification for density to meet the standard of SNI 8021:2020. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/60802 10.14710/presipitasi.v21i2.324-338 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 324-338 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 324-338 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/60802/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/33460 2020-12-16T21:33:01Z presipitasi:RSA

Potensi Kandungan Gas Metana sebagai Sumber Energi Alternatif di TPA Kebon Kongok The Potential of Methane Gas as an Alternative Energy Source in Kebon Kongok Landfill Abdullah, Taufik Hidayat, Nur Rosman Sholehah, Hijriati Teknik Lingkungan Gas Metana, Sampah, LandGEM Environmental Engineering Methane gas; Solid waste; LandGEM Pemanasan global merupakan kondisi peningkatan temperatur rata-rata permukaan bumi akibat konsentrasi gas rumah kaca yang berlebih diantaranya emisi gas metana (CH4) dengan potensi pemanasan global 21 kali lipat dibanding CO2. Kandungan gas metana dapat berasal dari biogas yang dihasilkan dari sampah Tempat Pemrosesan Akhir (TPA) dengan prosentase kandungan 50-70%. Selain menyebabkan global warming apabila tidak ditangani dengan baik, gas metana juga dapat menimbulkan dampak negatif bagi lingkungan karena sifatnya yang mudah terbakar akan menimbulkan ledakan hingga kebakaran seperti yang dialami TPA Regional Kebon Kongok pada akhir Oktober 2019. Penelitian ini bertujuan untuk mengetahui potensi kandungan gas metana dari sampah TPA Kebon Kongok sebagai sumber energi alternatif dengan melakukan pemodelan menggunakan software LandGEM. Data masukan yang digunakan dalam pemodelan LandGEM yakni tahun rencana operasi TPA dan data sampah masuk ke TPA per tahun. Potensi kandungan gas metana yang dihasilkan dari pemodelan tersebut sebanyak 12.999.633,62 m3 dan jika dikonversi ke dalam bentuk energi listrik setara 14.520,88 MWh atau dalam bentuk gas sebanyak 9.966,38 Megagram elpiji. Waste management in West Nusa Tenggara Provincial Government focuses on two main things, namely the reduction and handling and providing of TPA which is still operated with an open dumping system. Application of an open system in TPA will cause many problems, including air pollution by methane gas and the greenhouse effect. This study aims to determine the potential methane gas content of the Kebon Kongok landfill as an alternative energy source by modelling using LandGEM. The data in this study consisted of the year of the TPA operation plan and the annual data on the waste generation of TPA. The results showed that the potential content of methane gas was 12,999,633.62 m3/year, or equivalent to 14,520.88 MWh/year, in the form of gas as much as 9,966.38 Megagrams of LPG/ year. Therefore, the Kebon Kongok TPA has the potential to be used as a power plant fuelled by methane gas and facilitates electricity connections for the surrounding community because when compared to other existing renewable energy plants in the Lombok Electricity System, the capacity of 1.66 Megawatts was already  equivalent to the power generation  capacity which are already operating commercially. Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33460 10.14710/presipitasi.v17i3.334-343 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 334-343 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 334-343 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33460/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/33460/6509 Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/78668 2026-04-21T07:44:25Z presipitasi:RSA

River Quality Analysis and Integration of Community Participation in the Development of the PROKASIH Program Evianovita, Dwi Intan Nur Setyono, Prabang Gravitiani, Evi Candraningtyas, Callista Fabiola Environmental Science; Water Pollution; Quality Assessment; Community Management Community-based river management; green infrastructure; PROKASIH; public participation; water quality assessment River water pollution from domestic and industrial waste remains a major challenge in Indonesia’s environmental governance. The Clean River Program (PROKASIH) was established as a national initiative to control water pollution through collaboration among government agencies, industries, and local communities. However, local implementation often faces constraints, particularly limited community participation and insufficient integration of environmentally friendly infrastructure. This study evaluates the implementation of the Clean River Program in Sukoharjo Regency, examines community participation, identifies influencing factors, and develops an improvement strategy based on social cohesion and sustainable technology. A mixed-methods approach was applied, combining river water quality analysis, dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, total suspended solids, nitrate, and phosphate, with a survey of 100 respondents and in-depth interviews. Reliability testing produced a Cronbach’s alpha value of 0.86, while Spearman ’scorrelation analysis showed a significant relationship between education level and participation. The results indicate a program success rate of 58.7%, with community participation classified as moderate. This study proposes the Green–Community River Management (G-CRM) framework, integrating participatory governance and eco-friendly infrastructure to strengthen PROKASIH implementation in line with the 2023–2030 KLHK Clean River Program Roadmap and support Sustainable Development Goal 6.3. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78668 10.14710/presipitasi.v23i1.130-142 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 130-142 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 130-142 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78668/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/2824 2016-05-21T14:19:41Z presipitasi:RVA

EVALUASI DAN OPTIMALISASI INSTALASI PENGOLAHAN LIMBAH TINJA KOTA PEKALONGAN Wardhana, Irawan Wisnu Karunia, Wina Environmental Engineering; Environment septage, technical and non technical, BOD, COD, TSS, total colly, optimalization Pekalongan is one of city located in Central Java. This city consist of 271.990 people and has 45,25 Km2 land area divided into 4 kecamatan. To advance public health and clean sanitation, Pekalongan City was facilitated with septage treatment that known as IPLT, this instalation has the maximum capacity up to 39,40 m3/day, but in the real condition this instalation only treat 36 m3/day of septage waste. The effluen of wastewater still have high concentration of BOD, COD, TSS and total coliform. Based on that  problem, this instalation need to be evaluated so we can find the problem exist and take the right solution for optimalizing IPLT. Optimalization plan in this instalation consist of two aspect, there are technical and non tehnical. Technical consist of service, capacity of IPLT, quantity of septage, treatment units, and facilities/basic facilities. And then, non technical consist of workers, operational system, exploiting by other institution, and financial (public contribution). The solution that can be implemented to optimalize the operation of this instalation are redesign the instalation to advance the treatment procces of wastewater, expand serve area to get proper quantity of septage, create institution that concern in septage treatment, calculate the retribution fee which give good financial support for operation and maintanance of  IPLT, create strict regulation about septage disposal and also has their own regulation for under level quality to control the outlet concentration. Universitas Diponegoro 2009-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/2824 10.9767/bcrec.%v.%i.2824.76-81 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 2 (2009): Vol 6, No 2 (2009); 7-15 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 2 (2009): Vol 6, No 2 (2009); 7-15 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/2824/2506

oai:ojs.ejournal.undip.ac.id:article/50420 2023-04-08T21:36:46Z presipitasi:RVA

Biofuel Successful Strategies towards Sustainable Development: A Bibliometrics Analysis Farhan HR, Muhammad Purnomo, Eko Priyo Pembangunan Berkelanjutan; Ilmu Lingkungan Palm oil; biofuel; sustainable; biodiesel This study aims to analyze biofuel use from oil palm as an alternative source of sustainable development. Data were obtained from the Scopus database with the last five years of publication. This research method uses a qualitative approach to the study of literature. Data analysis used bibliometric analysis with Vosviewer and NVIVO 12 plus software. The findings of this study indicate that several countries have used palm oil-based biodiesel as a transportation fuel, one of which is that Indonesia is the leading country in taking advantage of this opportunity. This can be seen from the development of the B30 from government and biodiesel programs which have become triggers for rising CPO prices worldwide and have impacted Fresh Fruit Bunches at the farm level. The study also found fluctuations in the publication of scientific research on biofuels. The most significant contribution to research articles comes from Malaysia. The university with the most number is University Malaya. The following research areas have the potential for further study: production of biofuels, vegetable oils, renewable diesel, and bio. Production energy, biodiesel, biomass, and biofuels are narratives of scientific research papers related to biofuels.  Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50420 10.14710/presipitasi.v20i1.31-43 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 31-43 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 31-43 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50420/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/14715 2020-04-17T11:33:53Z presipitasi:RSA

APLIKASI GEOSPASIAL MENGGUNAKAN ARCGIS 10.3 DALAM PEMBUATAN PETA DAYA HANTAR LISTRIK DI CEKUNGAN AIRTANAH SUMOWONO Putranto, Thomas Triadi Alexander, Kevin Departemen Teknik Geologi Cekungan Air Tanah, Sumowono, Daya Hantar Listrik, Geostatistik, Interpolasi Air tanah sebagai air bersih merupakan salah satu kebutuhan primer manusia yang dimanfaatkan dalam berbagai kepentingan manusia serta untuk air minum. Airtanah memiliki kualitas dimana salah satu parameter fisiknya adalah daya hantar listrik (DHL). Dalam suatu Cekungan Airtanah (CAT), airtanah memiliki keberagaman nilai daya hantar listrik yang dipengaruhi oleh faktor infiltrasi dan lingkungan. Nilai DHL dapat dijadikan suatu acuan mengenai kelayakan suatu airtanah sebagai air minum. Sebagai salah satu sumber yang paling diminati masyarakat, maka masyarakat juga perlu untuk mengetahui kualitas dari airtanah tersebut melalui parameter daya hantar listrik sehingga peta daya hantar listrik daerah CAT Sumowono dapat menjadi suatu informasi bagi masyarakat yang menggunakan airtanah dari CAT Sumowono tersebut. Maka dari itu perlu adanya pembuatan peta daya hantar listrik daerah CAT Sumowono agar masyarakat merasa nyaman dan aman dalam memanfaatkan airtanah. Metode interpolasi data DHL menggunakan analisis geostatistik yang terdapat pada perangkat lunak ArcGIS 10.3. Metode interpolasi yang digunakan adalah Inverse Distance Weighting (IDW), Radial Basis Functions (RBF) dan Empirical Bayesian Kriging (EBK). Dari keseluruhan data yang terinterpolasi, didapatkan dua kelas kualitas airtanah berdasarkan nilai DHL, yaitu Sangat Baik (<250 μS/cm) dan Baik (250-750 μS/cm). Metode interpolasi yang dinilai paling seimbang adalah metode RBF. Melalui peta DHL hasil interpolasi metode RBF diketahui persebaran daerah dengan kelas sangat baik pada daerah CAT Sumowono mencakup 52,8% dari luas CAT dan 47,2% masuk ke dalam kelas baik. Universitas Diponegoro 2017-05-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14715 10.14710/presipitasi.v14i1.15-23 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 15-23 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 15-23 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14715/11217 Copyright (c) 2017 Jurnal  Presipitasi  :  Media  Komunikasi  dan  Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/63496 2025-12-04T00:06:38Z presipitasi:RCS

Mining Noise Pollution: A Case Study of a Crushing Plant in Sintang Meilasari, Fitriana Sutrisno, Hendri Ningrum, Gemilang Oktavia Aprillia, Ricka Kurniawan, Eddy Andesite mining; crushing plant; noise The crushing plant in the mining industry produces noise levels above the allowable noise level, potentially causing hearing damage to mining workers. One way to early control this is by mapping the noise distribution in the area. The noise distribution mapping was based on noise intensity. The noise intensity measurement was done using a sound level meter according to Indonesian national standards 7231:2009. The noise exposure analysis was based on the NIOSH formula and Indonesia's national standard 7570:2023. The study's results revealed that noise levels at the source exhibited an intensity of approximately 95-103 dB. The noise propagation pattern extended from the southwest to the northeast, with an intensity of approximately 68-93 dB. The highest noise intensity was observed in the vicinity of the first jaw crusher, exceeding 100 dB, with a daily exposure time in this area of 6-12 minutes. Prolonged exposure to high noise levels can potentially lead to auditory damage. Therefore, the implementation of noise control measures, including using personal protective equipment and the installation of appropriate safety signage, is imperative. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63496 10.14710/presipitasi.v22i1.221-231 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 221-231 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 221-231 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63496/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39081 2022-02-16T03:26:18Z presipitasi:RCS

Household Solid Waste Management Strategy in Danau Teluk Sub-District, Jambi City Irawan, Dea Rifka Syarifuddin, Hutwan Fakhri, Sukmal Ilmu Lingkungan Environmental Sciences Danau Teluk Sub-District is one of the sub-districts in Jambi City. The waste production produced by Danau Teluk Sub-District based on DLH Jambi City data in 2020 reached 8,793.99 kg/day with a population of 12,563 people. In Danau Teluk Sub-District, the production of managed waste reached 71.05% and unmanaged waste reached 28.95%. Compared to other sub-districts, the percentage of managed waste is the lowest and the percentage of unmanaged waste is the highest. This research is conducted on influencing factors using distribution frequency and multiple linear regression, community and government involvement using distribution frequency and chi-square, and determining strategic priorities in household solid waste management using SWOT. Based on the results of the study, there are two factors that influence the management of household solid waste, namely behaviour and knowledge of local regulations, there are two factors that relate to the management of household solid waste, namely implementation and supervision, then the strategic are to carry out waste reduction starting from the source by reducing the use of goods that produce waste and providing data on waste management that is easily accessible to the public such as through social media, websites, television advertisements, bulletin boards, etc. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39081 10.14710/presipitasi.v18i2.282-298 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 282-298 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 282-298 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39081/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/9094 2020-04-17T11:31:54Z presipitasi:RVA

PENGGUNAAN TEKNOLOGI REAKTOR MICROBIAL FUEL CELLS (MFCs) DALAM PENGOLAHAN LIMBAH CAIR INDUSTRI TAHU UNTUK MENGHASILKAN ENERGI LISTRIK Purwono, Purwono Hermawan, Hermawan Hadiyanto, Hadiyanto Environmental Engineering; Environment Microbial Fuel Cells (MFCs), media lekat, variasi konsentrasi Microbial Fuel Cells (MFCs) adalah bioreaktor yang mengubah energi kimia dari senyawaorganik menjadi energi listrik melalui reaksi katalitik mikroorganisme dalam kondisi anaerob. Tujuandari penelitian ini adalah mengetahui pengaruh variasi media terlekat (attached growth media) danvariasi konsentrasi COD awal terhadap efisiensi penyisihan konsentrasi COD dan energi listrik yangdihasilkan. Reaktor MFCs didesain dalam bentuk dual-chamber yang dihubungkan menggunakanjembatan garam. Kerikil dan bioball digunakan sebagi variasi media lekat pada kompartemen anodadan konsentrasi limbah awal divariasikan dari 0%, 25%, 50%, dan 100% dari konsentrasi COD limbahcair industri tahu asli dengan cara melakukan pengenceran.Hasil penelitian menunjukkan bahwamedia lekat kerikil dengan konsentrasi 50% menghasilkan arus listrik rata-rata tertinggi 7,25 µA danenergi listrik sebesar 179,54 mWh. Voltase dan enegi listrik pada kedua variasi tersebut semakin harisemakin menurun. Variasi konsentrasi 25%, 50%, dan 100% menghasilkan penurunan nilai effisiensipenyisihan COD masing-masing 41,41%; 39,90% dan 18,26%.Pada variasi 100% menghasilkanenergi listrik lebih rendah dari pada 50%. Kemungkinan hal ini karena adanya senyawa sulfida yangberperan sebagai akseptor elektron. Pembentukan senyawa sulfida ditandai dengan terbentuknyawarna hitam pada substrat. Efisiensi coulombic (εC) akibat perbedaan media lekat dan variasikonsentrasi berada pada kisaran 0,001-0,035%. Rendahnya εC kemungkinan karena adanya produkproduk fermentasi dan biofilm pada elektroda anoda yang menghambat transfer elektron menujuelektroda anoda seperti biomassa, bahan organik terlarut, gas H2 dan gas CH4 Universitas Diponegoro 2015-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9094 10.14710/presipitasi.v12i2.57-65 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 12, No 2 (2015): September 2015; 57-65 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 12, No 2 (2015): September 2015; 57-65 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9094/7365

oai:ojs.ejournal.undip.ac.id:article/55630 2023-08-18T02:24:32Z presipitasi:RCS

Various Community Motivations for the Success of Ecosystem Restoration in Mount Baung Nature Park, Pasuruan Regency Sudrajat, Asep Hawim Surjono, Surjono Batoro, Jati ilmu lingkungan Community motivation; ecosystem recovery; environment; Mount Baung Mount Baung is a conservation forest area located in Pasuruan Regency. In this area, there is an area of 27 ha that has been damaged. Research on the motivation of local communities in supporting the success of ecosystem recovery is very important to obtain an overview of the situation of high exclusion costs in the use of forest resources in Mount Baung Nature Park. Research methods are quantitatively presented in statistical data through the analysis of validity, ratability, multiple linear regression and determination. The regression test analysis value was Sig 0.559. It can be concluded if the regression value is significant. Then it was found that there were 11 variables that were very influential. The high determining factors to be able to increase community motivation in the management of Mount Baung are monitoring and assessing the results of ecosystem management, utilizing the results of Mount Baung Nature Park management of Mount Baung, the role of program managers (BKSDA), the desire to increase income. Support community/government leaders and community initiatives. As an effort to manage the sustainable Mount Baung Nature Park of Mount Baung, the determining factors to increase community motivation need to be an important consideration in community assistance. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55630 10.14710/presipitasi.v20i2.390-401 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 390-401 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 390-401 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55630/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20814 2020-04-17T11:37:09Z presipitasi:RSA

PENGARUH PENDAMPINGAN MASYARAKAT DALAM INISIASI BANK SAMPAH SEBAGAI UPAYA MENGOPTIMALKAN PENGOLAHAN SAMPAH DI DESA TANJUNG KECAMATAN TIRTO KABUPATEN PEKALONGAN Samadikun, Budi Prasetyo Teknik Lingkungan pendampingan; pengelolaan; bank sampah; Tanjung Perumahan Pensiunan ABRI (PEPABRI) sebagai salah satu kawasan perumahan yang berada di Desa Tanjung Kecamatan Tirto Kabupaten Pekalongan memiliki beberapa permasalahan dalam pengelolaan sampah, dikarenakan sistem yang terbentuk tidak berjalan dengan baik dan pengetahuan masyarakat yang masih rendah terhadap sampah. Tujuan dari paper ini adalah untuk mengetahui pengaruh pendampingan masyarakat terhadap tingkat pemahaman masyarakat tentang urgensi pengelolaan sampah rumah tangga sehingga sampah dapat lebih bernilai ekonomis dalam sebuah bank sampah.  Metode pendampingan masyarakat dilakukan dalam tiga tahap: tahap awal (sosialisasi), tahap pelaksanaan, serta tahap akhir (monitoring dan evaluasi). Respon warga cukup positif terhadap kegiatan pendampingan masyarakat ini, sejak mulai tahap sosialisasi, sampai dengan tahap evaluasi, masyarakat mengikuti secara aktif dan sangat antusias. Hasil monitoring menunjukkan masyarakat berangsur-angsur mulai paham dan sadar tentang arti penting pengelolaan sampah, serta berpartisipasi penuh dalam pengelolaan bank sampah di desa ini, baik sebagai pengelola ataupun nasabah bank sampah. Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20814 10.14710/presipitasi.v15i2.133-138 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 133-138 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 133-138 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20814/14089 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/69146 2025-12-04T00:06:38Z presipitasi:RCS

Development of Environmental Management Strategies for Slums in Southwest Aceh Regency Husna, Cut Zulfa Pravitasari, Andrea Emma Putra, Andi Syah Latifa, Nisa Environment and Sustainable Development; Urban Development and Rural Environment Environmental management strategy; LISA; Moran’s index; slums, regional development Slums represent a complex issue found in various regions, including Southwest Aceh Regency, caused by poor management and inadequate settlement planning. This study analyzes the spatial patterns of slum areas in Southwest Aceh Regency and proposes management strategies. The research utilizes Moran's Index analysis and LISA to identify spatial clustering patterns of slum areas, complemented by SWOT analysis to determine suitable environmental management strategies. Moran's Index analysis of slums in Southwest Aceh Regency for 2014 and 2020 reveals a positive spatial autocorrelation with clustered pattern, but less concentration in 2020. LISA analysis shows the spatial distribution of slum areas in 2014 showed high-high (HH) clusters concentrated along coastal and mid-district regions, while in 2020, clustering shifted and became concentrated in the regency capital. Overall, the distribution of slums in 2020 appears more dispersed. The primary environmental management strategy recommended for slum upgrading in Southwest Aceh Regency a Defensive Strategy. This involves strengthening stakeholder collaboration to improve sanitation infrastructure, thereby mitigating disaster risks such as flooding; reorganizing residential areas to accommodate urbanization while attracting developers; and educating the community to enhance compliance with environmental regulations. Additionally, maintaining financing programs despite potential budget reductions is critical to ensuring sustainable living conditions. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69146 10.14710/presipitasi.v22i1.260-274 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 260-274 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 260-274 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69146/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/45076 2022-12-14T20:16:03Z presipitasi:RSA

Synthesis, Characterization, and Application of Rubber Fruit Shell as an Adsorbent for Phosphate Removal in Real Grey Water Naswir, Muhammad Wibowo, Yudha Gusti Laura, Winny Teknik Lingkungan Adsorption; greywater; freundlich model; rubber fruit shell The washing waste from the laundry industry contains phosphate that can pollute the environment. Multiple efforts have been made but have not reached the small to medium-scale laundry industry; this happens because of the high cost of technology. In this paper, the sorption process by rubber fruit shells successfully reduced the pollutants parameter from greywater. This research has succeeded in creating an adsorbent with raw rubber fruit shell waste; studies on manufacturing techniques, adsorbent characteristics, ability to reduce phosphate content, and adsorption isotherm models are well described. This study also promotes the utilization of rubber shell waste that has not been utilized properly. Adsorbents derived from rubber fruit shells reduced phosphate levels by up to 98% by adding 0.5 g of adsorbent to 100 mg/L of phosphate for 60 minutes. The appropriate adsorption isotherm model in this study is the Freundlich isotherm model. Universitas Diponegoro 2022-04-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45076 10.14710/presipitasi.v19i1.44-54 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 44-54 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 44-54 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45076/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10961 2016-05-04T09:08:33Z presipitasi:RVA

EVALUASI DESAIN INSTALASI PENGOLAHAN AIR PDAM IBU KOTA KECAMATAN PRAMBANAN KABUPATEN KLATEN Arifiani, Nur Fajri Hadiwidodo, Mochtar Environmental Engineering Ferrous and Mangan Removal, Aeration To  supply  good  water  quality,  quantity,  and  continuity  is  needed  an  Water  Treatment Plant (WTP).  The  unit  process  and  operation  is  dependent  on  quality  of    water  resources.  WTP in Klaten Unit Prambanan had a design flow of 20 L/s and had quality of water resources which is more than  water  parameter  regulation.  There  are  ferrous  (3,36  mg/L),  mangan  (0,58  mg/L), colour (159  TCU),  and  bad  odour.  So,  it  is  needed  aeration,  koagulation,  flocculation, sedimentation, and filtration units to separate them. Quality of water  efluent in this WTP is less than water parameter regulation. There are ferrous (0,18 mg/L) , mangan (0,21 mg/L), colour (3 TCU), and no odour. But, its need more improvement to optimalize reducing parameters. Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10961 10.14710/presipitasi.v3i2.78-85 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 78-85 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 78-85 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10961/8651

oai:ojs.ejournal.undip.ac.id:article/56143 2025-05-18T20:36:13Z presipitasi:RVA

The Effectiveness of Using Eco-Friendly Bag to Support Sustainable Development Goals: A Review Pratiwi, Annisa Indah Ariyani, Nadia Rizki Sari, Chintya Komala Rahman, Abdul Ilmu Lingkungan Eco-friendly bags; environment; sustainable development goals; climate change Nowadays, most people use eco-friendly bags as alternatives to plastic grocery bags. This comes from the government's strategy of prohibiting plastic bag use and requiring the use of eco-friendly supermarket bags instead. Eco-friendly bags are the most recent developments in supermarket bags made from environmentally friendly raw materials. However, using eco-friendly bags is not the ideal option because it generates new trash clusters as a result of their use and contributes to the impact of climate change. This article examines the effectiveness of using eco-friendly bags in reducing plastic waste and how it relates to SDG 13. This research uses qualitative methods related to analysing the environmental impact of environmentally friendly bags. It was found that bio-based plastics had the lowest GWP values. Several solutions to the problem of plastic bag pollution have been offered, including the development of new biodegradable bag technology, making policies or other incentives encouraging people to reuse shopping bags, and researching eco-friendly bag innovation in Indonesia using LCA. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56143 10.14710/presipitasi.v21i1.1-11 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 1-11 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 1-11 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56143/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/26112 2020-08-30T22:28:29Z presipitasi:RSA

Synthesis of Sodium Zirconia as a Catalyst for Transesterification Reaction of Used Cooking Oil Sintesis Natrium Zirkonia Sebagai Katalis Reaksi Transesterifikasi Minyak Goreng Bekas Agustin, Niyar Candra Prasdiantika, Ricka catalyst; used cooking oil; sodium zirconia; transesterification Ilmu Kimia katalis; minyak goreng bekas; natrium zirkonia; transesterifikasi Catalyst is one of factor that affect the results of the transesterification reaction. Catalyst has spesific properties that can only be used in certain reaction. In order to carry out the transesterification reaction a suitable catalyst is needed and has optimal performance. This research aims to synthesize sodium zirconia (Na2O/ZrO2) as a catalyst for transesterification reaction of used cooking oil into biodiesel and the effect of the concentration of NaOH solution on the zirconia catalyst (ZrO2). The sodium zirconia catalyst(Na2O/ZrO2) was synthesized by wet impregnation method by mixing ZrO2 and NaOH solution with variations in concentrations of 2, 4 and 6 M. Transesterification reaction is carried out with catalyst amount of 5%(w/w), with areaction time of 20 minutes, and by microwave heating at 400 watt microwave power. The comparison of oil molar with methanol was 1:15. Na2O/ZrO2 catalysts was characterized by Fourier Transform Infrared(FT-IR) Spectrophotometer, and X-Ray Diffractometer (XRD) and Scanning Electron Microscopy/Energy Dispersive X-ray (SEM/EDX). The resulting biodiesel was characterized by Gas Chromatography-Mass Spectrometry (GC-MS). Using Na2O/ZrO2 2 M catalysts produced the most biodiesel which was 85.5% (w/w). The formed biodiesel contained methyl palmitate (25,11%), methyl linoleate (10,87%), methyl elaidate (57,88%), and methyl stearate (6,14%). The characterization results showed that Na2O/ZrO2 as the transesterification used cooking oil catalyst was successfully synthesized. Katalis merupakan salah satu faktor yang dapat mempengaruhi hasil reaksi kimia. Katalis memiliki sifat spesifik yang hanya dapat digunakan pada reaksi tertentu. Sehingga untuk melakukan reaksi transesterifikasi dibutuhkan katalis yang sesuai dan mempunyai daya yang optimal agar menghasilkan produk. Pada penelitian ini dilakukan sintesis natrium zirkonia (Na2O/ZrO2) sebagai katalis reaksi transesterifikasi minyak goreng bekas menjadi biodiesel. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi larutan NaOH pada sintesis katalis zirkonia (ZrO2). Katalis Natrium zirkonia (Na2O/ZrO2) disintesis menggunakan metode impregnasi basah dengan mencampurkan padatan ZrO2 dan larutan NaOH pada variasi konsentrasi 2, 4, dan 6 M. Reaksi transesterifikasi dilakukan dengan jumlah katalis sebanyak 3% (b/b), waktu reaksi selama 20 menit, dan pemanasan microwave pada daya 400 watt. Perbandingan molar minyak dengan metanol yang digunakan pada penelitian ini yaitu 1:15. Katalis Na2O/ZrO2 dikarakterisasi dengan Fourier Transform Infrared (FT-IR) Spectrophotometer, X-Ray Difraktometer (XRD), dan Scanning Electron Microscopy/Energy Dispersive X-ray (SEM/EDX). Biodiesel yang dihasilkan dikarakterisasi dengan Gas Chromatography–Mass Spectrometry (GC-MS). Penggunaan katalis Na2O/ZrO2 2M menghasilkan produk biodiesel yang paling banyak yaitu sebesar 85,5% (b/b). Biodiesel yang terbentuk mengandung metil palmitat (25,11%), metil linoleat (10,87%), metil elaidat (57,88%), dan metil stearat (6,14%). Hasil karakterisasi menunjukkan bahwa Na2O/ZrO2 sebagai katalis reaksi transesterifikasi minyak goreng bekas berhasil disintesis. Universitas Diponegoro 2020-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26112 10.14710/presipitasi.v17i1.44-51 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 44-51 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 44-51 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26112/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10983 2016-05-21T15:44:06Z presipitasi:RVA

STUDI PENERAPAN PRODUKSI BERSIH (STUDI KASUS PADA PERUSAHAAN PULP AND PAPER SERANG) Nugraha, Winardi Dwi Susanti, Ina Environmental Engineering Cleaner production, reuse, reclyle, recovery and house keeping Cleaner produktion is minimization of waste from source. That is can do with some way of likes reuse, reclyle,  recovery  or  house  keeping.  PT.  Indah  Kiat  Pulp  and  Paper  that  location  in Kragilan Village,  Serang  Banten  is  paper  mill  that  in  their  production  aplicated  cleaneer production concept. Action  that  PT.  Indah  Kiat  Pulp  and  Paper  does  in  aplicated  cleaneer production  concept  is recovery  fiber  loss  from  waste  water,  reuse  product  fail  and  house keeping. Universitas Diponegoro 2006-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10983 10.14710/presipitasi.v1i1.43-48 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 43-48 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 43-48 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10983/8674

oai:ojs.ejournal.undip.ac.id:article/65168 2025-12-04T00:06:38Z presipitasi:RSA

The Efficacy of Anaerobic Biofilter and Pre-Aeration with Microbubble Generator for Tofu Wastewater Treatment Harahap, Juliansyah Ardhianto, Rachmad Muliadita, Tiara Sekar Mahdariza, Fathul Ersa, Nanda Savira Ashari, Teuku Muhammad Teknik Lingkungan; Rekayasa Ilmu Lingkungan; Teknik Penyehatamn wastewater treatment; tofu industry; hydraulic retention time; anaerobic biofilter; microbubble generator The majority of tofu manufacturers lack the necessary infrastructure to treat wastewater, resulting in the direct discharge of wastewater into water bodies. Such practices have the potential to results in environmental pollution. This study examines the efficacy of combining anaerobic biofilter technology and pre-aeration with a microbubble generator for the treatment of wastewater generated by the tofu industry. The research focused on the impact of hydraulic retention time (HRT) on the reduction of pollutants, specifically chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS), and pH levels. The results indicated that prolonged HRT in the anaerobic biofilter significantly reduces pollutant concentrations. 48-hour HRT achieved reductions of 80.78% for COD, 78.53% for BOD, and 89.25% for TSS, respectively. The integration of a microbubble generator further enhanced treatment efficiency. The combination of a 48-hour anaerobic biofilter and a 180-minute microbubble generator achieved reductions of 93.82% for COD, 93.11% for BOD, and 97.5% for TSS. The effluent consistently met the pH quality standards set by the Indonesian government. The findings suggest the potential for optimizing retention times and combining anaerobic and aerobic treatments to address wastewater challenges in the tofu industry.  Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/65168 10.14710/presipitasi.v22i1.95-108 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 95-108 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 95-108 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/65168/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/32284 2020-12-16T21:40:30Z presipitasi:RSA

Impact Analysis in Addition of Amylase Enzyme and Cellulose Enzyme Mixture toward Biogas Production from Rice Husk Waste using Solid State Anaerobic Digestion (SS-AD) Method Analisis Pengaruh Penambahan Campuran Enzim Amilase dan Selulase Terhadap Produksi Biogas Dari Limbah Sekam Padi Dengan Metode Solid State Anaerobic Digestion (SS-AD) Larasati, Dyanung Hardyanti, Nurandani Sumiyati, Sri Nugraha, Winardi Dwi Syafrudin, Syafrudin Environmental Engineering Amylase Enzyme, Biogas, Cellulose Enzyme, Rice Husk, Solid State Anaerobic Digestion Teknik Lingkungan; ilmu Lingkungan; Energi Baru dan Terbarukan Biogas, Enzim Amilase, Enzim Selulase, Sekam Padi, Solid State Anaerobic Digestion This research intend to analyze effect of concentrated amylase enzyme and cellulose enzyme, production rate and quality of biogas produced from rice husk waste. The rice husk was given chemical pretreatment by soaking it into NaOH 6 % for 24 hours. Then washed using water so that the pH became normal then dried under the sun before put it inside the reactor with the other enzyme, rumen and urea. The reactor that used has volume of 200ml and has total of 18 reactor with each variable has 2 reactor. Variance of concentrated enzyme that used are 9%, 12%, 15% and 18%. Biogas measurement done every 2 days for 60 days. Result from this research show that addition mixture of amylase enzyme and cellulose enzyme increase yield of biogas that produced. Because yield that produce from reactor with addition of 9%, 12%, 15%, 18% enzyme consecutively are 604 ml, 935 ml, 1041,5 ml and 2922,5 ml. whereas the reactor that not given enzyme only has biogas yield of 115 ml. the highest production rate occur on reactor that were given 18% of enzyme mixture with the production constant rate of 5,39 ml/(grTS day), maximum biogas production amount of 68,53 ml/grTS and the minimum time for biogas to formed is 0,92 days Penelitian ini bertujuan untuk menganalisis pengaruh variasi konsentrasi enzim amilase dan selulase, terhadap laju produksi dan kualitas biogas yang dihasilkan pada produksi biogas dari limbah sekam padi. Sekam padi tersebut diberi pretreatment kimia dengan merendamnya ke dalam NaOH 6% selama 24 jam, kemudian dicuci dengan air agar pH menjadi netral dan dijemur hingga kering seperti semula lalu dimasukkan ke dalam reaktor yang telah disiapkan beserta enzim, rumen dan urea. Reaktor yang digunakan bervolume 200 ml dan berjumlah 18 buah dengan masing-masing variabel terdapat dua reaktor. Variasi konsentrasi enzim yang digunakan yaitu 9%, 12%, 15% dan 18%. Pengukuran biogas dilakukan tiap 2 hari sekali selama 60 hari. Hasil dari penelitian ini menunjukkan bahwa penambahan campuran enzim amilase dan selulase dapat meningkatkan yield biogas yang dihasilkan, karena yield yang dihasilkan oleh reaktor dengan penambahan enzim 9%, 12%, 15% dan 18% secara berturut-turut adalah 604 ml, 935 ml, 1041,5 ml dan 2922,5 ml. Sedangkan reaktor yang tidak diberi enzim hanya menghasilkan yield biogas sebesar 115 ml. Laju produksi tertinggi berada pada reaktor yang diberi campuran enzim 18% dengan konstanta laju produksi biogas (U) sebesar 5,39 ml/(grTS.hari), produksi biogas maksimum (A) sebesar 68,53 ml/grTS dan waktu minimum terbentuknya biogas (λ) sebesar 0,92 hari Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/32284 10.14710/presipitasi.v17i3.242-252 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 242-252 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 242-252 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/32284/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/32284/6936 Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/78314 2026-04-21T07:44:25Z presipitasi:RCS

Evaluating Environmental Management Accounting of Community-driven Material Recovery Facility (CdRMF) Istigfarin, Wilda Auwalina Prastiwi, Arum Shahbudin, Amirul Shah Md Adib, Noval Teknik Lingkungan; Ilmu Lingkungan Circular economy; community driven material recovery; environmental management accounting; sustainability; waste bank Environmental management accounting (EMA) has gained attention; however, its use in grassroots waste management remains limited, especially in communities with scarce resources. This study explores how community-driven material recovery facilities (CdMRFs), or known as waste banks, Mitra Kita in Blitar, Indonesia, apply EMA principles in their daily operations. The focus is on how local groups adapt accounting practices to maintain accountability, transparency, and sustainability, despite financial and operational constraints. A qualitative case study was conducted through interviews, observations, and document analysis, supported by triangulation and member validation. The findings show that the CdMRF develops practical financial routines for recording expenses, calculating unit costs, and preparing semiannual reports, which strengthen transparency and trust among members. Community participation plays a central role, as routine activities generate financial, social, and ecological value. However, long-term sustainability is challenged by limited managerial skills, dependence on key leaders, and fluctuating waste prices. This study expands EMA discussions by shifting attention from formal institutions to community initiatives in developing contexts. It demonstrates that simplifying accounting can make environmental management more grounded and adaptable. The findings offer guidance for policymakers seeking to strengthen CdMRFs and similar programs within broader circular economy and sustainability efforts. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78314 10.14710/presipitasi.v23i1.285-306 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 285-306 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 285-306 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78314/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/1477 2015-11-13T10:02:18Z presipitasi:RVA

PENGOLAHAN AIR LIMBAH KEGIATAN PENAMBANGAN BATUBARA MENGGUNAKAN BIOKOAGULAN : STUDI PENURUNAN KADAR TSS, TOTAL Fe DAN TOTAL Mn MENGGUNAKAN BIJI KELOR (Moringa oleifera) Samudro, Ganjar Sumiyati, Sri Environmental Engineering; Environment Moringa oleifera, karakteristik sampel, koagulasi, dosis optimum Salah  satu  alternatif  pengolahan  air  limbah  kegiatan  penambangan  batubara  adalah  dengan menggunakan biji kelor (Moringa oleifera) sebagai biokoagulan. Protein dan logam alkali kuat yang terkandung dalam biji  kelor (Moringa oleifera) dapat bersifat sebagai poliektrolit dan kutub positif yang dapat mengikat koloid dalam air buangan. Penelitian ini dilakukan untuk menentukan dosis optimum dan efektifitas biji kelor dalam menurunkan TSS, total Fe dan total Mn pada kondisi aktual terhadap perbedaan  karakteristik  air  limbah kegiatan penambangan  batubara  dengan  menggunakan jartest. Hasil penelitian menunjukkan dari tiga sumber air limbah yang berbeda (sampel A, sampel B dan sampel C), terjadi penurunan TSS sebesar  99,93%, total Fe 99,71%  dan total Mn 10,84% dengan dosis optimum 1,50 gr/L untuk sampel A, kemudian penurunan TSS sebesar 91,52%, total Fe 85,47% dan total Mn 0,53% dengan dosis optimum 0,50 gr/L untuk sampel B dan penurunan TSS sebesar  99,29%, total Fe 99,43% dan total Mn 50,54% dengan dosis optimum 1,25 gr/L untuk sampel C. Perbedaan karakterisik sumber air limbah dan sifat polutan yang terkandung  akan  mempengaruhi kinerja biji kelor (Moringa oleifera) Universitas Diponegoro 2010-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1477 10.14710/presipitasi.v7i2.57-61 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 2 (2010): Vol 7, No 2 (2010); 57-61 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 2 (2010): Vol 7, No 2 (2010); 57-61 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1477/1239

oai:ojs.ejournal.undip.ac.id:article/48598 2023-01-04T02:30:50Z presipitasi:RCS

Factors Related to Community Waste Management in Kota Baru Sub District Jambi City in 2022 Eka Rini, Willia Novita Hidayati, Fajrina Butar, Marta Butar Lesmana, Oka Rahayu, Diani Lahanavia ilmu lingkungan Waste management; knowledge; attitude; subjective norm; control over behavior Waste that is not managed properly can cause environmental pollution and health problems. This study is to find out what factors are related to waste management in the community to reduce the amount of waste generation in Kota Baru SubDistrict, Jambi City. This study used an analytical survey method with a cross-sectional. The population in this study was 80,062 families with a sample of 106 respondents with a sampling technique using stratified random sampling. The independent variables in this study were knowledge, attitudes, subjective norms and control over behavior, while the dependent variable was waste management. The measuring tools used are observation sheets and questionnaires. Data analysis was carried out univariate and bivariate (using chi-square = 0.05).  The results showed that there was no relationship between attitudes (p value = 0.132), subjective norms (p value= 0.138) with waste management and there is a relationship between behavioral control (p value = 0.00), knowledge (p value = 0.00) with waste management. From the results of this study, knowledge and control of behavior greatly affect waste management. It is suggested to increase public knowledge by providing information in the form of posters and so on as well as increasing waste management facilities. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48598 10.14710/presipitasi.v19i3.659-668 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 659-668 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 659-668 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48598/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/48598/11503 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/48598/11504 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11119 2020-04-17T11:32:51Z presipitasi:RVA

PENENTUAN CAMPURAN LUMPUR LAPINDO SEBAGAI SUBSTITUSI PASIR DAN SEMEN DALAM PEMBUATAN PAVING BLOCK RAMAH LINGKUNGAN Samudro, Ganjar Hadiwidodo, Mochtar Aji, Fachrian Environmental Engineering solidifikasi, limbah B3, Lumpur Lapindo, paving block Lumpur  Lapindo  (LL)  atau  Lumpur  Sidoarjo  (Lusi)  merupakan  lumpur panas,  yang pemanfaatannya sangat terbatas dan menimbulkan dampak sosial dan lingkungan yang cukup besar.  Karakteristik Lumpur Lapindo  mengandung silikat (SiO 2 ) dan kapur (CaO) yang cukup tinggi  dan  bersifat  pozoland. Selain  kandungan  kimia  yang  menguntungkan,  Lumpur  Lapindo juga bersifat B3 dengan kandungan logam berat Pb 35,41 ppm dan Cu 21,9 ppm yang melebihi baku  mutu  Kepmenkes  no.907/2002,  PP  no.82/2001  dan  PP no.18/1999.  Teknik  solidifikasi menjadi paving block dapat digunakan untuk mengubah watak fisik dan kimia limbah B3 dengan cara  penambahan  senyawa pengikat  sehingga  pergerakan  senyawa-senyawa  B3  dapat dihambat  dan membentuk  ikatan  massa  monolit  dengan  struktur  yang  kekar. Penambahan Lumpur Lapindo sebagai substitusi semen dan pasir ditentukan sebesar 10%, 20%, 30%, 40%, dan 50%, dengan pengujian terhadap kuat tekan, daya serap air dan perlindian. Penelitian ini didapatkan  variasi  Lumpur Lapindo  sebagai  substitusi  pasir  dan  semen  optimum  masing-masing sebesar 30% dengan kuat tekan 408 kg/cm 2 , daya serap air 10,17% dan uji perlindian dihasilkan  dibawah  0,03  ppm  Pb  dan  Cu,  serta  biaya pembuatan  1  buah  paving  block berkurang dari Rp 1.302,86 per buah menjadi Rp 1.059,40 per buah. Lumpur Lapindo sebagai substitusi semen lebih baik penggunaannya dalam pembuatan paving block ramah lingkungan. Universitas Diponegoro 2016-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11119 10.14710/presipitasi.v13i1.13-20 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 1 (2016): Maret 2016; 13-20 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 1 (2016): Maret 2016; 13-20 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11119/8751

oai:ojs.ejournal.undip.ac.id:article/59885 2025-05-18T20:39:07Z presipitasi:RCS

Effectiveness and Efficiency of Waste Banks in Ambarawa District Semarang Regency in 2023 Ariyadi, Dony Siwiendrayanti, Arum Kesehatan Lingkungan; Ilmu Lingkungan effectiveness, efficiency, waste bank, waste bank performance, community, waste Ambarawa District, which is one of the districts with the highest density in Semarang Regency, experiences waste problems. Based on the official website of the Semarang Regency Environmental Agency, there are 10 active waste banks spread throughout Ambarawa District, including Acil, Rengas Asri, Mawar Asri, Mukti Bareng, Tegal Asri, Projo, Sari Asri, Tanjung Asri, Bina Lingkungan, and Bina Mandiri. The type of research used in this study was a case study based on quantitative data with a descriptive approach. Data analysis in this study uses the calculation of the Overall Equipment Effectiveness (OEE) equation and elasticity index. Based on the results obtained, 10 waste banks are located in Ambarawa District. The overall waste bank at OEE is less than 60%, and the elasticity index value is less than 1, which indicates that the effectiveness and efficiency of waste banks in Ambarawa District are low. In addition, the performance of waste banks in Ambarawa District is relatively low. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59885 10.14710/presipitasi.v21i3.793-801 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 793-801 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 793-801 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59885/_1 Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/37766 2022-02-16T03:26:18Z presipitasi:RSA

The Effectiveness of Reducing Ammonia Content Using Phytoremediation Methods in Domestic Waste of Pelita Bangsa University Nurhidayanti, Nisa Sara, Nadya Ulfani Teknik Lingkungan; ; Rekayasa Ilmu Lingkungan Ammonia, Phytoremediation, Domestic Waste Pelita Bangsa University is a private university with an increasing number of students every academic year. The increase in the number of students causes an increase in the amount of domestic waste generated. This study aims to determine the effectiveness of reducing Ammonia content in Pelita Bangsa University Domestic Waste by phytoremediation method using Apu Wood (Pistia stratiotes L.) and Kana Flower (Canna Indica) as well as the use of coffee grounds as activated carbon. The first step in this research is the manufacture of activated carbon from coffee grounds. The next step is to take samples of the Pelita Bangsa University domestic waste test. The test samples were brought to the laboratory, and the Ammonia parameter was tested to determine the initial concentration of the waste. Then the next step is the acclimatization process of plants and then continued with the Range Finding Test process. After that, the waste treatment process is carried out with a phytoreactor. Furthermore, the waste from the phytoreactor processing is taken to the laboratory for testing the ammonia parameters. The last step is to analyze the test results data. Based on the results of laboratory tests, the ammonia content after the phytoremediation process with and without a filter is <0.1 mg/L with the effectiveness of reducing the ammonia concentration by 97.10% with the addition of coffee grounds activated carbon filter and 96.7% for the use of the phytoremediation method without filters. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/37766 10.14710/presipitasi.v18i2.192-201 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 192-201 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 192-201 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/37766/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4931 2013-05-14T23:44:45Z presipitasi:RVA

PENGOLAHAN AIR LINDI DENGAN PROSES KOMBINASI BIOFILTER ANAEROB-AEROB DAN WETLAND Hadiwidodo, Mochtar Oktiawan, Wiharyanto Environmental Engineering, Environment leachate, biofilter, wetland In Indonesia leachate is still an issue yet to be addressed. With a high content of pollutant parameters and lack of government support resulting landfill must think about the appropriate treatment to be safe for treating waste when discarded into the environment. Biofilter methods and wetland is the one of alternatives leachate treatment that can be used. This method does not require a large operating costs and does not require skilled professionals to operate it. With a combination of wetland and biofilter, it is expected to reduce the content of pollutants in  the leachate, so it can be meet the wastewater quality standards which set by the government. The levels of pollutants were tested in this study is the BOD5, COD, TSS, ammonia, nitrite and nitrate. Universitas Diponegoro 2012-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4931 10.14710/jil.%v.%i.29-36 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 2 (2012): Vol 9, No 2 (2012); 84-95 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 2 (2012): Vol 9, No 2 (2012); 84-95 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4931/4468

oai:ojs.ejournal.undip.ac.id:article/52321 2023-08-18T02:24:32Z presipitasi:RCS

Determination of Strategy Planning of Domestic Wastewater Management System in a Commercial Area of Tasikmalaya City Dirgawati, Mila Sururi, Mohamad Rangga Suhendar, Dhama Yudha Domestic wastewater; SPALD type selection; multicriteria decision analysis; SWOT analysis The domestic wastewater in Cihideung and Tawang Subdistricts as central business district (CBD) areas in Tasikmalaya City is only served by an on-site domestic wastewater management system or Sistem Pengelolaan Air Limbah Domestik Setempat (SPALD-S) which could deteriorate the environment. This study aims to determine the most appropriate type, strategy, and development direction of SPALD based on the existing local conditions for the next 20 years in CBD areas in big cities such as Tasikmalaya. The two methods were used: the multicriteria decision analysis method which refers to the Regulation of the Minister of PUPR Number 04 of 2017, and the Quantitative SWOT analysis method refers to the Guidelines for Preparing a Wastewater Management System Plan. The results of the analysis show that integrated SPALD (SPALD-T) must be implemented aggressively in the two sub-districts based on the key parameters of the existing SPALD conditions, potential for soil contamination, potential danger to air receiving bodies, socio-economic characteristics of the community, public health conditions, education level, financial capability, and the availability of regulations regarding SPALD. The SPALD-T development is suggested to be carried out in stages by determining priority zones for every five years of the planning period. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52321 10.14710/presipitasi.v20i2.280-294 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 280-294 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 280-294 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52321/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20777 2020-04-17T11:36:23Z presipitasi:RSA

STUDI PEMBUATAN KOMPOS PADAT DARI SAMPAH DAUN KERING TPST UNDIP DENGAN VARIASI BAHAN MIKROORGANISME LOKAL (MOL) DAUN Hadiwidodo, Mochtar Sutrisno, Endro Handayani, Dwi Siwi Febriani, Masyitha Putri Teknik Lingkungan sampah daun, MOL, kompos Tempat Pengolahan Sampah Terpadu Universitas Diponegoro (TPST Undip) merupakan  sarana pengelolaan sampah  mandiri yang dibangun pada tahun 2015 oleh pihak institusi Universitas Diponegoro. TPST Undip melakukan kegiatan pengelolaan sampah mulai dari pengangkutan hingga pengolahan sampah untuk wilayah pelayanan yang mencakup seluruh area yang ada di kampus Undip. Pihak TPST Undip sudah melakukan upaya untuk mengolah timbulan sampah tersebut, yaitu dengan melakukan komposting untuk sampah organik biodegradable dan melakukan recycle untuk sampah anorganik. Pengomposan tersebut dilakukan selama 3 – 5 minggu dengan menggunakan bantuan aktivator EM4. Dalam penelitian ini, akan dibuat bioaktivator berupa larutan mikroorganisme lokal (MOL) dari berbagai macam daun yang mudah didapatkan di lingkungan sekitar kampus, seperti daun ketapang (Terminalia catappa), daun angsana (Pterocarpus indicus) dan daun mahoni (Switenia mahagony). Bioaktivator ini akan menggantikan aktivator komersial EM4 untuk digunakan dalam pengomposan sampah daun kering. Proses pengomposan dilakukan secara aerobik dengan bak bersekat dan dilakukan selama 28 hari. Hasilnya kandungan unsur hara makro yaitu COrganik, N-Total, dan K-Total dalam kompos ini telah memenuhi standar kualitas kompos di Indonesia yang diatur dalam SNI 19-7030-2004 Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20777 10.14710/presipitasi.v15i2.78-85 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 78-85 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 78-85 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20777/14079 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/66345 2025-12-04T00:06:38Z presipitasi:RCS

Differences in Before and After Temephos Intervention in Bengkulu City: Larvae Free Rate of Aedes spp. Gunasari, Lala Foresta Valentine Destilyana, Rizqita Massardi, Nikki Aldi Triana, Dessy Dengue; temephos; insecticides; larvae free rate One of the strategies to reduce dengue transmission is to control the population of vectors, such as larval eradication. The use of temephos larvicide (Abate®) is the most widely carried out in the community. An indicator of the success of the larval eradication program is the Larvae Free Rate (LFR) assessment. This study aimed to determine the difference between LFR of Aedes spp. before and after temephos intervention in Bengkulu City. This study is experimental research with one group pre-test and post-test design. The population of this study was all houses in Bengkulu City with a total sample of 670 houses. Sampling was carried out using cluster random sampling techniques in 67 urban villages in Bengkulu City. This research was carried out by conducting a survey of larvae before and after temephos intervention in containers. Sixty-seven urban-villages, in 44 (65,67%) urban-villages was found an increase of LFR after temephos intervention. The average LFR before temephos intervention was 67.61%, while after temephos intervention increased to 82.98%, there was a significant difference between LFR of Aedes spp. before and after temephos intervention in Bengkulu City (p=0.001). Temephos intervention is effective to increase LFR of Aedes spp. in Bengkulu City. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66345 10.14710/presipitasi.v22i1.157-167 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 157-167 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 157-167 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66345/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42825 2022-02-19T00:21:43Z presipitasi:RSA

Preliminary Study of Actinomycetes as Potential Biocatalyst in Biodiesel Production Through Microbial Lipase Activity Zulaika, Aidha Ningrum, Sari Sekar Guntama, Dody Teknik Lingkungan Biocatalyst; biodiesel; lipase; streptomyces phaeochromogenes; BLAST Biocatalysts are biological substances that act as an accelerator of chemical reactions without causing influence on the living organism chemically. Biocatalysts based on renewable sources, biodegradable, tolerance to pH and temperature, and high selectivity to stereochemistry substrates and products. The utilization of biocatalyst is environmentally friendly and effective in production costs. This research aimed to determine the potential of actinomycetes as a biocatalyst in biodiesel production. This research method isolation and identification of actinomycetes isolates, conducting lipase activity test to determining lipase enzyme production of actinomycetes isolates. The data analysis in microbial identification was conducted by molecular identification by Gene bank through Basic Local Alignment Search Tool (BLAST). The lipase activity of actinomycetes analyzing by the value of lipase rate of test microbes. Based on chemical analysis of lipase activity, this research results show that actinomycetes T1A has the highest lipase activity by 14.4640 mU/g. Based on molecular identification analysis, actinomycetes T1A was identified as Streptomyces sp., 99% similar to Streptomyces phaeochromogenes.  Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42825 10.14710/presipitasi.v18i3.512-523 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 512-523 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 512-523 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42825/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10952 2016-05-04T09:08:33Z presipitasi:RVA

ELECTRICITY GENERATION FROM LANDFILL GAS Budisulistiorini, Sri Hapsari Environmental Engineering landfill gas, bioreactor landfill, electricity generation, engine Energy  from  renewables  has  been  sought  to  replace  current  fossil  fuel  energy  generation. Landfill gas has great potential to generate power since it contains methane 40 to 60%. Utilizing an enhanced landfill  gas as fuel for  power generator is also  beneficial to reduce greenhouse gas  emission  from landfill  otherwise  it  will  escape  to  the  atmosphere.  Current  technology  in power  generation  from landfill  gas  includes  organic  rankine  cycle  (ORC)  and  stirling  cycle engine  (SCE)  to  add  the traditional  reciprocating  internal  combustion  engine  (ICE)  and  gas turbine  (GT).  The  state-of-the art  power  generation  technologies  have  been  developed  and demonstrated  in  the  US  whereas  in Australia,  landfill  gas  power  plant  remains  with  the conventional ones; reciprocating engine and gas turbine. Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10952 10.14710/presipitasi.v3i2.9-15 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 9-15 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 9-15 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10952/8643

oai:ojs.ejournal.undip.ac.id:article/57167 2024-06-14T22:00:52Z presipitasi:RVA

Bibliometric Analysis of HHO Gas Production by Electrolysis from 2013 to 2023 Purwono, Purwono Hadiyanto, H Arief Budihardjo, Mochamad Sila Puspita, Annisa HHO; electrolysis; production; bibliometric. HHO gas is one promising alternative as an alternative for fossil fuels, nevertheless, several challenges need to be overcome in order for HHO gas to become a viable option for global use. This paper presentsbibliometric analysis, HHO gases production methods, and challenges of using HHO gas. The primary objective of this review paper is to provide views, assessments, and evaluations of the published literature on HHO gas, both the production and use challenges of HHO gas. This review article uses several software programs including origin for graph visualization, Microsoft excel for processing data, and VOSviewer for analyzing bibliographic mappings. HHO production can be done by adding KOH electrolyte solution. Factors that affect the production of HHO gas include electrolyte properties, electrolyte concentration, and distance between electrodes. An increase in the concentration of the electrolysis solution leads to an increase in the production of HHO gas. The production of HHO gas can also be done with the addition of Na2CO3 or K2CO3 which can produce high H2 gas. The pre-combustion mercury removal technique using coal electrolysis produces hydrogen byproducts with 50% less energy than water electrolysis. A single Pt circuit at TiO2 support (Pt1/def-TiO2) forms a highly efficient photocatalyst for hydrogen production. The main challenges of HHO gas in terms of production, storage, distribution, safety, cost of HHO gas production. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57167 10.14710/presipitasi.v20i3.704-712 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 704-712 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 704-712 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57167/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/25205 2020-08-30T23:24:06Z presipitasi:RSA

Identification of Iron Oxides and Effects of Magnetic Materials Washing for Sand Iron Jomblom Beach Using Sonochemical Methods Identifikasi Oksida Besi dan Pengaruh Pencucian Material Magnetik Pasir Besi Pantai Jomblom Menggunakan Metode Sonokimia Prasdiantika, Ricka Agustin, Niyar Candra Rohman, Abdul Chemical Engineering Iron oxide; magnetic material; iron sand; Jomblom Beach; sonochemistry Kimia; Ilmu Kimia Iron oxide; magnetic material, iron sand; Jomblom Beach, sonochemistry This study aims to prepare iron sand, determine the type of iron oxide, and determine the effect of washing iron sand with sonochemical methods. Iron sand samples were obtained from Jomblom Beach, Kendal Regency. Iron sand was separated using an external magnet to obtain magnetic material. The magnetic material obtained was washed using distilled water manually stirred and using the sonochemical method. The material was dried at 80 °C. Material characterization was carried out using X-Ray Fluorescence (XRF) to determine the elements contained in iron sand, Fourier Transform Infrared (FT-IR) Spectrophotometer to identify functional groups in iron sand, X-Ray Diffraction (XRD) to find out the crystal size and crystallinity of iron sand, and the Transmission Electron microscope (TEM) to determine the morphology of iron sand. The characterization results showed that the iron sand of Jomblom Beach contained Fe (72.28%), Ti (7.89%), Al (7.00%), and Si (7.60%). The iron oxide contained in the Jomblom Beach iron sand was dominated by magnetite (Fe3O4). Washing iron sand magnetic material using the sonochemical method increased the composition of the element Fe, increased the crystallinity of the magnetic material, prevented aggregation, and reduced the crystal size of the magnetic material. Magnetic material which was washed using the sonochemical method produced 79.47% Fe element, crystallinity 74.94%, and crystal size 52.78 nm. This study aims to prepare iron sand, determine the type of iron oxide, and determine the effect of washing iron sand with sonochemical methods. Iron sand samples were obtained from Jomblom Beach, Kendal Regency. Iron sand was separated using an external magnet to obtain magnetic material. The magnetic material obtained was washed using distilled water manually stirred and using the sonochemical method. The material was dried at 80 °C. Material characterization was carried out using X-Ray Fluorescence (XRF) to determine the elements contained in iron sand, Fourier Transform Infrared (FT-IR) Spectrophotometer to identify functional groups in iron sand, X-Ray Diffraction (XRD) to find out the crystal size and crystallinity of iron sand, and the Transmission Electron microscope (TEM) to determine the morphology of iron sand. The characterization results showed that the iron sand of Jomblom Beach contained Fe (72.28%), Ti (7.89%), Al (7.00%), and Si (7.60%). The iron oxide contained in the Jomblom Beach iron sand was dominated by magnetite (Fe3O4). Washing iron sand magnetic material using the sonochemical method increased the composition of the element Fe, increased the crystallinity of the magnetic material, prevented aggregation, and reduced the crystal size of the magnetic material. Magnetic material which was washed using the sonochemical method produced 79.47% Fe element, crystallinity 74.94%, and crystal size 52.78 nm. Universitas Diponegoro 2019-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/25205 10.14710/presipitasi.v16i3.140-151 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 140-151 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 140-151 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/25205/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/69267 2025-12-04T00:06:42Z presipitasi:RVA

Trends and Patterns of Sediment Contamination in Indonesia (1999-2024): A Scientometric Analysis Hanun, Alain Shofia Budihardjo, Mochamad Arief Andarani, Pertiwi Fadhillah, Muhammad Afdhal Teknik Lingkungan; Oseanografi; Geologi Sediment contamination; scientometric; pollution; heavy metals In the current era of the Industrial Revolution, there is a substantial increase in effluents from industrial discharges and domestic waste flowing into the sea, leading to contamination of water bodies. This includes pollutants such as heavy metals (Cu, Pb, and Zn) and microplastics, which eventually settle and contaminate sediments. Research on sediment contamination in Indonesia has been quite numerous and varied, but none has employed the scientometric method to analyze the trend of sediment contamination. Using CiteSpace, this study analyzes trends and patterns in research topics, citation frequency, and publication numbers over the past 25 years, based on co-occurrence, co-word, and co-citation analyses. The study examined 177 research articles indexed by Scopus. Findings reveal substantial international collaboration, with Indonesia leading with 167 publications, Malaysia with 19, and Japan with 15, showing a significant gap. The research spans various subject areas, including Environmental Science (111 articles), Earth and Planetary Sciences (74 articles), and Agricultural and Biological Sciences (55 articles). This study will provide a quantitative and visual overview of sediment contamination research in Indonesia, offering a comprehensive discussion of the findings. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69267 10.14710/presipitasi.v22i2.621-632 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 621-632 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 621-632 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69267/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/47024 2023-03-29T21:11:54Z presipitasi:RSA

Assessing Occupational Noise Exposure and Blood Pressure of Cabin Personnel of an Indonesian Diesel Train Budiawan, Wiwik Andarani, Pertiwi Agiasti, Lare Demetria environmental engineering; industrial engineering; ergonomics; environmental health; occupational health; noise Occupational noise; train; cabin personnel; train driver; blood pressure Noise may cause serious health problems, including physiological responses, specifically in the cardiovascular system. This study aims to assess occupational noise exposure and analyze the correlation between occupational noise and blood pressure in cabin and station personnel. The participants were 30 cabin personnel (train drivers) and 30 station personnel. The cabin had a Leq of 90.3 dBA while the noise level at Poncol Station was still below the threshold limit value (TLV), i.e., 75.8 dBA. The noise exposure assessment also included noise exposure profiling. The Chi-square test showed that noise influenced systolic and diastolic blood pressure changes. Furthermore, for train drivers, the t-test showed a difference in systolic and diastolic between before and after the activity. As for station personnel, there was a difference in systolic, but contrarily it was not the case in diastolic. According to the noise profile, the train whistle had the most significant noise level at 120 dBA. Moreover, the use of a train whistle regularly may raise the noise level exposure to cabin staff and even station workers. This study contributes to scientific evidence that occupational noise might affect blood pressure Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47024 10.14710/presipitasi.v19i2.271-279 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 271-279 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 271-279 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47024/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/59091 2025-05-18T20:36:13Z presipitasi:RSA

Relationship between Risk Factors for Dug Well Contamination with Total Coliform Counts in Dug Well Water Yulianti, Elisa Tri Siwiendrayanti, Arum Ilmu Lingkungan Total coliform; contamination; dug wells Dug well water can be a source of disease transmission if contaminated by pathogenic bacteria. Many people in Purworejo Regency still use dug wells as a source of drinking water. This secondary data study aims to determine the risk factors associated with total coliform counts in dug well water in the working area of the Purworejo District Health Office in 2022. Cross sectional research design and data analysis techniques chi square test with fisher alternative test. The population was 61 dug wells that had been carried out Environmental Health Inspections on Household Drinking Water Quality Study data and a sample of 53 dug wells. The research was conducted in August-October 2022. The results showed an association between the risk factors of well wall condition (p value = 0.041) and well cover (p value = 0.048) to the total number of dug well coliforms. It is recommended to the local community to improve the physical condition of dug wells, especially well walls and well covers so that contaminating substances from outside the well do not enter and contaminate dug well water. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59091 10.14710/presipitasi.v21i1.103-111 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 103-111 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 103-111 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59091/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/24184 2020-12-16T21:04:20Z presipitasi:RSA

Hydrogeological Mapping for Analyzing of Groundwater Conservation Zone in Sumowono Groundwater Basin, Central Java Province Pemetaan Hidrogeologi untuk Analisis Zona Konservasi Air Tanah di Cekungan Air Tanah (CAT) Sumowono, Provinsi Jawa Tengah Putranto, Thomas Triadi Susanto, Novie Pangestuti, Dina Rahayuning Pranata, Mathias Andika Setya Geological Engineering, Hidrogeology groundwater; conservation; electrical conductivity; groundwater; secured zone Teknik Geologi, Hidrogeologi airtanah; konservasi; daya hantar listrik; konservasi; zona aman Groundwater management at groundwater basins Sumowono needs to be done because of the increasing development of the area. This research is oriented to analyzing groundwater conditions, compiling groundwater conservation zones, and explaining conservation zones' suitability with spatial maps. The method used is mapping hydrogeological conditions such as surface observation of rock types, inventory of hydrogeological points of interest, knowing the patterns and directions of groundwater flow, groundwater utilization, and groundwater sampling to measure the degree of acidity and electrical conductivity. From the mapping results, it is found that the lithology is composed of tuffaceous sandstones and volcanic breccias. Based on the free groundwater table analysis, the free groundwater flow pattern follows the topographic slope, flowing from the high topography on the south and southeast sides to the low topography on the north side of the area. The utilization of groundwater is used for irrigation, domestic and fishery purposes. Measurement of groundwater samples' quality for the degree of acidity is between 5.32-7.98 while the electrical conductivity is between 36-550 µS / cm, and the level of damage due to groundwater utilization is included in the safe zone. The groundwater conservation zone consists of recharge areas and spring protection zones. The result of overlapping between the groundwater conservation zone and the spatial plan map shows suitability as a protection zone. Pengelolaan air tanah di CAT Sumowono perlu dilakukan karena meningkatnya perkembangan wilayah tersebut. Penelitian ini berorientasi untuk menganalisis kondisi air tanah, menyusun zona konservasi air tanah dan menganalisis kesesuaian zona konservasi dengan peta tata ruang. Metode yang digunakan adalah pemetaan kondisi hidrogeologi seperti pengamatan permukaan jenis batuan, inventarisasi titik minatan hidrogeologi, mengetahui pola serta arah aliran air tanah, pemanfaatan air tanah, pengambilan sampel air tanah untuk pengukuran derajat keasaman dan daya hantar listrik. Dari hasil pemetaan hidrogeologi didapatkan litologi tersusun oleh batupasir tufan dan breksi vulkanik. Berdasarkan hasil analisis muka air tanah bebas, pola aliran air tanah bebas mengikuti kemiringan topografi, mengalir dari topografi tinggi di sisi selatan dan tenggara menuju ke topografi rendah di sisi utara daerah. Pemanfaatan air tanah digunakan untuk keperluan irigasi, domestik, serta perikanan. Pengukuran kualitas sampel air tanah untuk derajat keasaman antara 5,32-7,98 sedangkan daya hantar listrik antara 36-550 µS/cm dan Tingkat kerusakan akibat pemanfaatan air tanah termasuk kedalam zona aman. Zona konservasi air tanah terdiri dari daerah imbuhan dan zona perlindungan mata air. Hasil tumpang susun antara zona konservasi air tanah dengan peta rencana tata ruang didapatkan kesesuaian sebagai zona perlindungan. Universitas Diponegoro Lembaga Penelitian dan Pengabidan Masyarakat Universitas Diponegoro Dinas Energi dan Sumber Daya Mineral Provinsi Jawa Tengah 2020-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24184 10.14710/presipitasi.v17i2.154-168 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 154-168 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 154-168 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24184/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/74894 2026-04-21T07:44:25Z presipitasi:RSA

The Potential of Bioplastic Waste Made From Polybutylene Adipate-Co-Terephthalate (PBAT) as Compost Mixtures Rachmawati, Siti Matin, Hashfi Hawali Abdul Suhardono, Sapta Daniswara, Agnar Pradipa Fadhilah, Ririn Nur Nurlita, Siti Bioplastic; compost; PBAT Biodegradable bioplastics offer an environmentally friendly alternative. One type of bioplastic being developed is Polybutylene Adipate-Co-Terephthalate (PBAT), an aliphatic-aromatic polyester capable of decomposing through microbial activity. This study aimed to analyze the potential of bioplastic waste as a compost mixture ingredient and determine the optimal composition of bioplastic waste mixtures for compost production. The study utilized a Completely Randomized Design (CRD). The quality of the compost made from bioplastic waste mixtures was evaluated based on SNI 7763:2024 standards, with parameters including pH, temperature, additional substances, and chemical content, such as nitrogen (N), phosphorus (P), potassium (K), and organic carbon (C-organic). The composting process lasted 60 d, using mixtures of bioplastics and cow manure organic waste in proportions of 95:5, 90:10, 85:15, 80:20, 75:25, and 70:30, each weighing 1 kg. Some mixtures were supplemented with 30 mL of activated EM4 to accelerate decomposition, whereas the control group used only cow manure. The results indicate that the compost produced generally met the SNI 7763:2024 standards. The most effective composition was 80% organic waste, 20% bioplastic, and 30 mL EM4. This composition achieved N+P2O5+K2O levels of 2.88%, C-organic content of 30.46%, moisture content of 24.60%, and pH of 7.60. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/74894 10.14710/presipitasi.v23i1.1-14 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 1-14 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 1-14 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/74894/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/47013 2023-01-04T02:30:50Z presipitasi:RSA

Utilization of Rubber Factory WWTP Muds as Fertilizer for Rubber Plant Clone PB 260 (Hevea Brasiliensis Muell. Arg) Maryani, Anis Tatik Dewi, Suri Setyaningsih Elsa Fathia, Nyimas Mirna Wibowo, Yudha Gusti Ilmu Lingkungan Fertilizer; sludge waste; ruber clon PB 260 The rubber plant (Hevea brasiliensis Muell. Arg) is an important plantation crop in Indonesia because it is one of the non-oil and gas products that are a source of large amounts of foreign exchange income for the country. Experiment was arranged in a Randomized Block Design with one factor, namely Compost for Wastewater Treatment Plant (WWTP) sludge from a rubber factory which consisted of 5 treatment levels. Statistical analysis was carried out using variance (ANOVA). Variables observed in rubber plants were an increase in bud grafting length, plant diameter, the number of leaves, shoot dry weight, and root dry weight. The results showed that the WWTP waste compost from the rubber factory affected the growth of rubber seedlings, as shown in the variable length of grafting shoots, the number of leaf stalks (strands), and the dry weight of the plant crown. Meanwhile, the increase in stem diameter and dry weight of plant roots showed no significant effect on the observed variables. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47013 10.14710/presipitasi.v19i3.487-497 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 487-497 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 487-497 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47013/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11015 2016-05-05T01:28:38Z presipitasi:RVA

ANALISA KEMAMPUAN ADSORPSI TANAH JENIS LANAU KEPASIRAN (SANDY SILT) TERHADAP PHOSPAT SEBAGAI BAHAN AKTIF SODIUM TRIPOLYPHOSPATE INDUSTRI PENGOLAHAN UDANG (STUDI KASUS INDUSTRI PENGOLAHAN UDANG) Hardyanti, Nurandani Rahayu, Suparni Setyowati Environmental Engineering Schrimp processing industry, adsorption, ground type sandy silt, phosphate waste water . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11015 10.14710/presipitasi.v5i2.76-81 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 76-81 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 76-81 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11015/8699

oai:ojs.ejournal.undip.ac.id:article/63814 2025-05-18T20:37:10Z presipitasi:RSA

Utilization of Sidoarjo Volcanic Mud as Heterogeneous Catalyst in Persulfate Oxidation Process Nisrina, Khairunnisa Faza Adityosulindro, Sandyanto Direstiyani, Lucky Caesar Teknik Lingkungan; Rekayasa Ilmu Lingkungan; Persulfate Oxidation; congo red; vulcanic mud; heterogeneous catalyst Advanced Oxidation Processes (AOP), such as persulfate oxidation is a promising contaminant removal agent for treating wastewater. In this study, Sidoarjo volcanic mud (VM) was applied as heterogeneous catalyst to support the persulfate oxidation process for Congo Red (CR) dye removal. The Sidoarjo volcanic mud is known to have a high iron content, making it a potential catalyst in AOP. This study was conducted under conditions of pH 2, CR 50 mg/L, and catalyst dosage 0.5 g/L  and effective reaction volume of 300 mL. This experiment was conducted by comparing three types of catalysts: unmodified volcanic mud (UVM), impregnated volcanic mud (Fe-IVM), and calcined volcanic mud (CVM). The methods were carried out by comparing two methods, namely simultaneous and sequential. The obtained CR removal values for UVM, Fe-IVM, and CVM catalysts were 83.73%, 78.86%, 51.96% for simultaneous and 84.75%, 81.72%, and 87.69% for sequential method. Whereas the UVM catalyst has the highest CR removal value with a lower adsorption value of 16.89%. The production of sulfate radical analyzed by comparing the oxidation process of homogeneous and heterogeneous catalysts. It was shown that the application of VM catalyst as heterogeneous catalyst is very promising for dye removal in wastewater treatment.  Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63814 10.14710/presipitasi.v21i2.369-380 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 369-380 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 369-380 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63814/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/36179 2022-02-16T03:29:41Z presipitasi:RSA

Optimization of Fermentable Sugar Production from Pineapple Leaf Waste (Ananas comosus [L.] Merr) by Enzymatic Hydrolysis Widihastuty, Yohanita Restu Sutini, Sutini Ramadhani, Aida Nur Chemical Engineering cellulase enzyme, pineapple leaves, reducing sugar, agricultural waste Pineapple leaf waste is one agricultural waste that has high cellulose content. Pineapple leaf waste's complex structure contains a bundle of packed fiber that makes it hard to remove lignin and hemicellulose structure, so challenging to produce reducing sugar. Dried pineapple leaf waste pretreated with a grinder to break its complex structure. Delignification process using 2% w/v NaOH solution at 87oC for 60 minutes has been carried out to remove lignin and hemicellulose structure so reducing sugar could be produced. Delignified pineapple leaf waste has been enzymatic hydrolyzed using cellulase enzyme (6 mL, 7 mL, and 8 mL) to produce reducing sugar. The sample was incubated in an incubator shaker at 155 rpm at 45, 55, and 60oC for 72 hours. Determination of reducing sugar yield had been carried out using the Dubois method and HPLC. The model indicated that the optimum operating condition of enzymatic hydrolysis is 7 mL of cellulase enzyme at 55oC to produce 96,673 mg/L reducing sugar. This result indicated that the enzymatic hydrolysis operating condition improved the reducing sugar yield from pineapple leaf waste. The optimum reducing sugar yield can produce biofuel by the saccharification process. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36179 10.14710/presipitasi.v18i1.73-80 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 73-80 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 73-80 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36179/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4808 2013-05-14T23:21:12Z presipitasi:RVA

PENGARUH VARIASI KONSENTRASI DAN DEBIT PADA PENGOLAHAN AIR ARTIFISIAL (CAMPURAN GREY WATER DAN BLACK WATER) MENGGUNAKAN REAKTOR UASB Samudro, Ganjar Syafrudin, Syafrudin Yazid, Fauzia Rahmiyati Environmental Engineering; Environment UASB, black water, grey water, concentration, flow In this study Mixture of domestic grey water and black water were investigated. This Mixture consists of Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), and  Nitrate  (NO3).  This  research  investigated  the  influence  of  concentration  and  flow  variation parameters  to  treating  the  Mixture  Grey  Water  and  Black  Water.  Effluent  quality  of  decreasing concentration varied by the concentration and flow recorded BOD was about 102-544 mg/l, COD was about 287-1.230 mg/l, TSS was about 280-780 mg/l and for treating  nitrate the result was fair enough than others was about 4-12 mg/l.  According to the flow variation resulted the retention time are 4, 6 and 8 hours. The best effluent quality was happened 878 mg/LCOD, and varied by flow are 0,125. The results  of  research  showed  the  higher  concentration  will  decrease  the  value  of  BOD  and  Nitrate removal, due to the influence of pH.The higher flow will decrease the value of BOD and increase COD, TSS, and Nitrate removal, and  optimum flow condition was 0,125 l/hour. Universitas Diponegoro 2012-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4808 10.14710/presipitasi.v9i1.31-40 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 1 (2012): Vol 9, No 1 (2012); 31-40 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 1 (2012): Vol 9, No 1 (2012); 31-40 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4808/4358

oai:ojs.ejournal.undip.ac.id:article/50515 2023-04-08T21:36:46Z presipitasi:RCS

Assessment of Surface Water Quality Status Using the Pollution Index Method in Tukad Badung River Harmayani, Kadek Diana Jaya, Ni Made Pertiwi Widhiawati, Ida Ayu Rai Parahita, I Gede Andy Andika Wiryananda, Ngakan Gede Agung Khrisna Supriyani, Ni Nyoman Dewi Mahendra, Daniel Rizal Baskhara, I Gusti Agung Gede Wiranata Hutagalung, Debora Sofia Fransiska Teknik Lingkungan River pollution; water quality; watershed; pollution index; tukad badung This research proposes to find out the present state of the water's purity in Tukad Badung through an examination of the Pollution Index (PI) adopted from the methodology presented by the Water Quality Index (WQI), which was presented by the Indonesian Ministry of Environment. A series of water samples were taken at three river flow points in the Denpasar City area, representing the upstream, middle, and downstream areas. The water quality parameters were determined based on the characteristics of domestic wastewater pollutant sources that are identified in watershed areas. In accordance with Regulation 22 of the Government of 2021 concerning quality standards for river water used for drinking water, the average concentrations of Total Suspended Solid (TSS), Ammonia, Biological Oxygen Demand (BOD), and Chemical Oxygen Demand (COD) parameters have exceeded quality standards. Meanwhile, the oil and grease parameter, as well as detergents, still meet quality standards. The PI at three monitoring points was obtained at 2.41 – 4.27, categorized as lightly polluted. In the future, efforts to deal with water pollution are critical to meet the downstream water quality standards used as drinking water. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50515 10.14710/presipitasi.v20i1.175-185 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 175-185 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 175-185 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50515/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/16426 2020-04-17T11:35:32Z presipitasi:RSA

Studi Pemanfaatan Limbah Padat Industri Pengolahan Minyak Kelapa Sawit Spent Bleaching Earth sebagai Pengganti Agregat pada Campuran Beton Dermawan, Denny Ashari, Mochammad Luqman Teknik Lingkungan spent bleaching earth, concrete, fine aggregate, compressive strength, TCLP Palm oil refinery factory has solid waste by product  called Spent Bleaching Earth (SBE). SBE consists of some chemical compounds and one of them  is SiO2 up to 83,05%. SiO2 or silica fume can cause silicosis if it is exposed to the atmosphere and frequently inhaled by the workers.  On the other hand,  SiO2  is one of the material  composition of Portland cement. Thus, it is necessary to conduct a research about the utilization of SBE. as a concrete mixture. SBE is utilized as fine aggregate substitution by the composition of 0%, 10%, 20%, 30%, and 40% of the total amount of fine aggregate. The conducted tests are fineness modulus calculation, compressive strength, setting time, and TCLP. The method used for mix  design is SNI 03-2834-2000 with f’c 28,5 MPa and slump 12 ± 2 cm. This research  shows  that concretes with SBE substitution which achieve the planned compressive strength are 10% SBE with 34,16 MPa and 20% SBE with 29,06 MPa. Based on the TCLP test, the concentration of heavy metal substances in 10% SBE are below the standard. Thus, it is  scientifically proven to conclude that concrete with 10% SBE is technically proper and safe for the environment. Universitas Diponegoro Kementerian Riset, Teknologi, dan Pendidikan Tinggi Shipbuilding Institute of Polytechnic Surabaya 2018-03-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16426 10.14710/presipitasi.v15i1.7-10 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 7-10 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 7-10 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16426/pdf Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/63854 2025-12-04T00:06:38Z presipitasi:RCS

Forecasting Methane Emission Reduction through 3R Waste Treatment Facility: The Case of Janti-Sidoarjo Rifai, Muhamad Khafid Kartikaningsih, Hartati Susilo, Agus Kristama, Yoga Sita Ilmu Lingkungan Methane emission; municipal solid waste; sustainable waste management; 3R waste treatment facility Municipal solid waste (MSW) generation contributes to methane emission, formed during anaerobic decomposition of organic. The MSW reduction can be forced into an integrated solid waste management site through 3R paradigm built in each municipal level area. This is because methane has a relatively short atmospheric lifetime of about 12 years compared to CO2. This means that reducing methane can quickly impact slowing global warming in the short term. This study aimed to achieve maximum results in reduction methane emission generated from an urban area through 3R waste treatment facility with measurable evaluation in 3 scenarios. The method used to gather the data analysis is Minitab 22 software, which forecasts an approach through trend method analysis, moving average, single exponential smoothing, and double exponential smoothing model to obtain the best-fit model for scenario analysis. The result showed that trend analysis has a high accuracy category with the smallest error (<10%: strong accuracy) in BaU, scenario 1, scenario 2, and scenario 3 with the MAPE value 0.002071 (0.2%), MAD value 0.00, and MSD value 0.00. Meanwhile, scenario 3 could decrease the amount of waste sent to landfills 188.03 tons/year in 2024 and 203.53 tons/year in 2033. Whilst, it could reduce methane up to 0.829126 tons-CO2-eq /year in 2024 and 0.897479 tons-CO2-eq /year in 2033 from total waste in Janti or 8-10% from the total methane emissions in Jabon landfill (65683,8 tons-CO2-eq /year). It concluded that optimizing the activities of 3R waste management facility units in each area, particularly in Sidoarjo, can significantly reduce the effect of methane emissions that arise in landfills. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63854 10.14710/presipitasi.v22i1.232-246 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 232-246 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 232-246 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63854/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/43202 2022-02-19T00:21:43Z presipitasi:RCS

The Ability of Dissolved Oxygen and Biochemical Oxygen Demand Parameters to Self-purify in the Garang River Junaidi, Junaidi Priyambada, Ika Bagus Venoreza, Nindya BOD; deoxygenation; DO; reaeration; self purification; streeter-phelps Garang River is administratively located in Semarang Regency, Kendal Regency, and Semarang City. Population growth and the number of community activities around the river can affect the water quality of the Garang River. Wastewater discharged into the Garang River will reduce water quality. The number of pollutants that enter the river changes the quality of river water until it reaches a pollutant level that exceeds the quality standard. The purpose of this study was to determine the self-purification ability of the Garang River using the Streeter-Phelps method based on DO and BOD parameters to obtain an oxygen sag curve for oxygen reduction. There are 3 monitoring stations that are located in the upstream segment of the Garang River. The value of the deoxygenation constant (K) in segment 1 is around 0.340, the reaeration constant (R) is 3.433, and the value of fs = 10.103. While in segment 2. the value of K is 0.335, R is 3.417, and fs is 10.194. It is revealed that segment 1 and segment 2 of the Garang River have not yet experienced optimal natural purification because they are still in the degradation zone. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/43202 10.14710/presipitasi.v18i3.433-442 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 433-442 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 433-442 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/43202/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10943 2016-05-03T20:07:16Z presipitasi:RVA

FITOREMEDIASI PHOSPAT DENGAN PEMANFAATAN ENCENG GONDOK (EICHHORNIA CRASSIPES) (STUDI KASUS PADA LIMBAH CAIR INDUSTRI KECIL LAUNDRY) Hardyanti, Nurandani Rahayu, Suparni Setyowati Environmental Engineering phytoremediation; phosphate; laundry; water hyacinth Small laundry was one of home industries that grown rapidly. Small laundry industries usually disposed their  wastewater  straightly  to  the  city  drain  system  without  any  treatment  before.  It caused a large amount of phosphate accumulating in the sewage. Because of the environment was  unable  to handle  it  by  themselves,  we  needed  a  simple,  cheap,  and  applicative  way  to reduce phosphate. Phytoremediation was one of methods to remove phosphate. This research used  water  hyacinth. Phytoremediation  was  be  done  by  planting  water  hyacinth  in  the phosphate  wastewater.  By  doing this  we  expected  that  water  hyacinth  would  absorb  the phosphate  from  the  water.  The experiments  was  taken  for  5  days  with  phosphate concentrations of 200 mg/liters; 250 mg/liters; 300mg/liters. At early concentrations of 200mg/l showed that water hyacinth could reduce phosphate until 24.03% or about 144,1603 mg, for the early  concentrations  of  250  mg/l  showed  that  water  hyacinth could  reduce  22.95%  or  about 172.1209 mg and for the early concentrations of 300 mg/liters showed that water hyacinth could absorb about 20,87 % or around 187.860 mg. From the statistic test showed that life time in the wastewater gave a significant result to the ability in absorbing phosphate by the water hyacinth. Universitas Diponegoro 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10943 10.14710/presipitasi.v2i1.28-33 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 28-33 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 28-33 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10943/8634

oai:ojs.ejournal.undip.ac.id:article/56390 2024-06-14T22:00:52Z presipitasi:RSA

Effects of Rubber Factory Wastewater Sludge Compost on the Growth Parameters of Rubber Seedlings: A Nursery Study and Environmental Perspective Maryani, Anis Tatik Hendra, Aves Dwi Fitriani, Miranti Sari Wibowo, Yudha Gusti Rubber (Hevea brasiliensis Muell. Arg), rubber factory wastewater sludge Conducted at the University of Jambi's Teaching and Research Farm in Mendalo Indah Village, this three-month study from September to November 2022 utilized a Completely Randomized Design (CRD) with a single variable: rubber factory wastewater sludge compost application. Five treatment levels were tested: a0 = 25 g NPKMg dose, a1 = 100 g rubber factory wastewater sludge compost + 20 g NPKMg dose, a2 = 200 g rubber factory wastewater sludge compost + 15 g NPKMg dose, a3 = 300 g rubber factory wastewater sludge compost + 10 g NPKMg dose, and a4 = 400 g rubber factory wastewater sludge compost + 5 g NPKMg dose. Statistical analysis, employing ANOVA and the Honestly Significant Difference (HSD) test, determined treatment effects at a 5% significance level. The study assessed various rubber plant growth parameters, such as live seedling percentage, shoot emergence, budded shoot height, leaf count, stem diameter, root count, shoot and root dry weight. Notably, the application of 400 g of rubber factory wastewater sludge compost significantly influenced plant growth, specifically enhancing shoot emergence, stem diameter growth, and budded shoot height. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56390 10.14710/presipitasi.v20i3.602-611 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 602-611 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 602-611 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56390/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/24170 2020-04-17T11:38:47Z presipitasi:RSA

Prioritas Penentuan Peningkatan Kualitas Lingkungan Permukiman Kumuh yang Berkelanjutan Mutaqin, Zenal Persada, Citra Suroso, Erdi Lingkungan slum area, quality improvement, household waste management, waste infrastructure, community service activities, 5 location, AHP The enhancement of environmental quality for urban settlement in Palembang is expected to be sustainable due to the increase number of slum areas and the limited funding allocation for the infrastructure establishment. This study aimed to determine priority scale of activities and locations according to three pillars of sustainable development which can alleviate slum areas i.e. physical environment, social and economic aspects by involving all stakeholders. This research will provide information for the local government to determine priority activities and locations for settlement improvement by using Analytical Hierarchy Process (AHP). The study revealed that the main factor to improve the environmental quality for settlement in 29 Ilir sub-district was the infrastructure development with urgency level reaching 46.7%. Meanwhile, the urgency level of social activity factor was approximately 31.2% followed by the economic development factor which was the lowest level by 22.1%. However, the highest priority level from those activity factors was household waste management by 100%, while other priority activities that should be done consecutively were waste infrastructure (93.5%), community service activities (83,6%), environmental drainage (66.2%), sanitation (66.1%), business capital loans (63%), training and entrepreneurship (61%), and compensation for the poor (57,9 %). The aforementioned activities were conducted in priority locations in which environmental quality was relatively poor. Universitas Diponegoro 2019-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24170 10.14710/presipitasi.v16i2.65-75 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 65-75 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 65-75 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24170/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/76252 2025-12-04T00:06:42Z presipitasi:RSA

Life Cycle Analysis of Coal and RDF Utilization as Energy Sources for Industry: A Comparative Study of Environmental Impacts Nurseta, Dimastyaji Yusron Bigita, Adora Salsa Damayanti, Alvina Nugroho, Aprianto Tyas Dwi Andini, Aulia Mutiara Firdausi, Bq. Nurul Maghfira Agni Wati, Hessy Rahma Life cycle assessment; coal; refuse derived fuel; environmental impact; alternative energy This study utilized an LCA approach to comparatively analyze the environmental impact of using coal and RDF as industrial energy sources. Coal, which constitutes the foundation of Indonesia's economy and its primary energy source, has resulted in substantial emissions. In response to this challenge, RDF has emerged as a promising alternative fuel made from municipal waste with a calorific value equivalent to coal. The findings of this research consistently demonstrate that RDF exhibits a considerably diminished environmental impact profile in comparison to coal, across a wide range of evaluated impact categories. For instance, RDF contributes a mere 2% to terrestrial and freshwater aquatic ecotoxicity, whereas coal contributes 98%. RDF exhibits a minimal contribution to acidification potential, eutrophication, ozone depletion, and human toxicity. The novelty of this research lies in its in-depth comparative analysis of the environmental impacts of coal and RDF using LCA with gate-to-gate boundaries, as well as the identification of key impact points (hotspots) in each energy production process. These findings serve to reinforce the argument that RDF is a more sustainable and environmentally friendly energy option for Indonesia's industrial sector. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/76252 10.14710/presipitasi.v22i2.330-348 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 330-348 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 330-348 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/76252/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/45285 2022-12-14T20:16:03Z presipitasi:RSA

Analysis and Evaluation of West Semarang Distribution Pipe Network System Municipal Waterworks in Semarang City Miseno, Bernadinus Gunawan Broto Samadikun, Budi Prasetyo Sarminingsih, Anik Teknik Lingkungan Clean water; dwss; pipeline network The need for clean water is related to the growth rate and population density. High population density affects access to clean water. The population in the DWSS (Drinking Water Supply System) area of West Semarang is concentrated in three sub-districts, namely West Semarang (148,879 people), Ngaliyan (141,727 people), and Tugu (32,822 people). With the average population growth rate of Semarang City from 2011 to 2020 of 0.89%, the need for clean water will continue to increase. The condition of clean water services in Semarang City, which Municipal Waterworks manage, needs to be improved, both in terms of coverage and continuity of service distribution. The research method used is the method of field research and literature. Hydraulic data retrieval was obtained through field observations and water usage data from the internal Municipal Waterworks in Semarang City. The data were analyzed using the epanet program. From the analysis results, there were areas with significant differences in water pressure values , and at peak hours, there were areas that did not get sufficient water supply. It can be concluded that there are problems in the piping network in the West Semarang DWSS area.  Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45285 10.14710/presipitasi.v19i1.199-207 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 199-207 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 199-207 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45285/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/45285/10363 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10974 2016-05-05T04:32:12Z presipitasi:RVA

PENGARUH PENCAMPURAN LUMPUR TINJA PADA PENGOMPOSAN SAMPAH ORGANIK (STUDI KASUS TPA JERUKLEGI KABUPATEN CILACAP) Budihardjo, Mochamad Arief Harsanto, Cahyo Environmental Engineering compost, organic waste, fecal sludge . Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10974 10.14710/presipitasi.v4i1.62-68 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 62-68 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 62-68 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10974/8665

oai:ojs.ejournal.undip.ac.id:article/72370 2025-12-13T04:17:17Z presipitasi:RCS

Sustainable Strategies to Reduce Water Pollution from Domestic Wastewater Discharge Ridwan, Ridwan Tang, M Syafri, Syafri Jumain, Aslam Akrim, Djusdil Buraerah, Muh. Fikruddin Wellang, Marini Ambo Kimia Lingkungan BOD; COD; domestic wastewater; sustainable water management; urban rivers; water pollution Urban rivers are increasingly threatened by pollution from domestic and industrial waste, leading to water quality degradation. The Pampang River in Makassar, an essential water source for residential, agricultural, and industrial use, faces growing pressure from untreated wastewater discharge. This study evaluates the current water quality status of the Pampang River by analyzing BOD, COD, pH, and temperature, and projects future pollution trends using predictive modeling. Water samples were collected from six strategic locations along the river to represent various pollution sources. BOD and COD were analyzed according to SNI 6989.72:2009 and SNI 6989.02:2019, while pH and temperature were measured in situ. A time series regression model predicted pollution levels over the next five years. Results indicate BOD (4.426–6.439 mg/L) and COD (34.1594–43.4827 mg/L) remain within regulatory standards but show an upward trend, potentially exceeding acceptable limits in 3–4 years. pH (7.39–8.08) and temperature (31.9°C–34.4°C) reflect the impact of detergents and urban runoff, threatening biodiversity and oxygen levels. Without intervention, the river's pollution will escalate, posing ecological and health risks. Sustainable strategies, including better wastewater treatment, stricter industrial regulations, and community-based waste management, are essential for long-term water quality sustainability. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/72370 10.14710/presipitasi.v22i3.792-808 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 792-808 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 792-808 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/72370/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46834 2023-03-29T21:11:54Z presipitasi:RSA

Solid Medical Waste Management of Hazardous and Toxic at UNS Hospital Surakarta Hawali Abdul Matin, Hashfi Purwono, Purwono Chalid Afif Alfajrin, Achmad Hidayat Ramli Inaku, Awaluddin Environmental Science; Environmental Engineering; Waste Management; Public Health Hazardous and toxic waste; hospital waste; solid medical waste management; UNS hospital In the era of the COVID-19 Pandemic, medical waste is increasing in various hospitals, including UNS Hospital. The variables studied in the hazardous and toxic solid medical waste flow treatment. Primary data was obtained from an analysis of waste amount in 2021 and interviews with incinerator managers. Secondary data in the form of waste types, impacts, and incinerator residue were obtained from the literature study. This research aims to identify solid medical waste management with hazardous and toxic materials compared with Regulation of Environment and Forestry Minister of Republic Indonesia 56/2015. After analysis, it was found that there is dangerous and harmful solid medical waste flow management, distinguished by type. Particular colored medical waste is managed by reducing, sorting, storing, transporting, and destroying. Destruction is conducted with an incinerator. Arah Environmental Indonesia Company operates infectious medical waste. The potential impact of that waste can attack health, damage the environment quality, increase the degradation that has occurred, and pose a threat to microplastic. Completing waste management is done by tightening hospital regulations to produce output according to quality standards, limiting hazardous and toxic waste use, and selecting the waste. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46834 10.14710/presipitasi.v19i2.398-407 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 398-407 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 398-407 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46834/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11006 2016-05-05T01:28:38Z presipitasi:RVA

DESAIN PEMBENTUKAN ZONA ATENGAH 1 JARINGAN PIPA DISTRIBUSI PDAM KOTA MAGELANG DI WILAYAH PELAYANAN MAGELANG TENGAH Sutrisno, Endro Sarminingsih, Anik Environmental Engineering Water loss, zone, pressure, distribution pipe network . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11006 10.14710/presipitasi.v5i2.8-15 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 8-15 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 8-15 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11006/8690

oai:ojs.ejournal.undip.ac.id:article/57929 2025-05-18T20:37:10Z presipitasi:RSA

EM4 Addition Effect with Eisenia foetida Worms on Compost Characteristics as a Soil Improver Nindyapuspa, Ayu Setiani, Vivin Astuti, Ulvi Pri Azam, Muhammad Abdulloh Teknik Lingkungan; ilmu Lingkungan; Rekayasa Ilmu Lingkungan; Teknik Penyehatan; Teknik Pengolahan Limbah C/N ratio; cow dungs; fish waste; vermicomposting A lot of fish waste is produced by the community, both from the marketing sector and the fisheries sector, which is caught by fishermen. Almost 35% of the fish waste produced is in the form of heads, bones, innards and also fish remains that are not the main catch which are thrown away directly. Vermicomposting is one of method to reduce the amount of fish waste. The adding of livestock manure in vermicomposting will increase the quality of compost. The purpose of this research is to analyze the compost quality with the mixture of fish waste and livestock manure. The results showed that The compost that has the best quality based on SNI 19-7030-2004 is B2 with 45% fish waste, 20% cow dung and 35% sawdust with a dose of EM4 10 ml, which has a final temperature of 29ºC, pH 7, water content 41%, C-organic 19.83%, nitrogen 1.34%, phosphorus 0.36%, potassium 1.15%, and C/N ratio 14.85. Then, after incubating the soil improvement, it was found that the addition of compost can improve the chemical characteristics of the soil according to the dose given. This indicates that compost application can affect soil quality. Soil quality that has C-organic and nitrogen content according to BPT in 2009 is with the addition of a dose of 5.2 grams of vermicompost. The shortcomings of this study are that the phosphorus and potassium levels are too high.  Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57929 10.14710/presipitasi.v21i2.355-368 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 355-368 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 355-368 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57929/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/34139 2022-02-16T03:29:41Z presipitasi:RSA

The Effectiveness of Reducing COD, TSS, and Detergent using Banana Stem Filter Media in the Wastewater Treatment of Motor Vehicles Waste Treatment Kusumawardani, Yustika Soehartono, Soehartono Subekti, Sri Teknik Lingkungan wastewater treatment plant; filtration; filter media; banana stem The development of the area around the river continues to increase in line with the pace of development to improve community welfare. Likewise, with small-scale motorized vehicle washing businesses that are widely located on the riverbank, if there is no processing, there is a concern that it will also pollute the river. One of the requirements for an effective wastewater treatment plant is minimal maintenance and costs and safe and easy operation. The cellulose content and hygroscopic ability of banana stems make banana stems usable as a porous medium. Based on previous research, banana stem filter media can reduce TSS concentration and detergent for motorized vehicle washing wastewater. This research uses descriptive quantitative research methods. The test variables were the concentrations of COD, TSS, and detergent. This study aims to design WWTP using banana stem filters and to determine the effectiveness of WWTP in reducing the test parameters. The analysis results show that the WWTP of banana stem filter media can be used to treat motorized vehicle washing wastewater with an average value of the effectiveness of reducing the overall test parameters by 51%. The percentage of the best reduction effectiveness was 77% in the TSS parameter on day 4. The average reduction effectiveness of each COD parameter was 48%, TSS 55%, and detergent was 51%. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34139 10.14710/presipitasi.v18i1.37-44 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 37-44 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 37-44 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34139/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/78665 2026-04-21T07:44:25Z presipitasi:RSA

Batik Wastewater Treatment: Performance of Combination PAC with Hydrocyclone Separation Rosariawari, Firra Amalia, Aussie Dienullah, R Mohammad Alghaf Fauzianto, Fajar Shufi Rizqa, Fauzul Teknik Lingkungan Batik wastewater; hydrocyclone; polyaluminum chloride (PAC) Batik wastewater contains high levels of total suspended solids (TSS) and turbidity, making it difficult to decompose naturally. To prevent environmental pollution, this study investigated a treatment method that combined coagulation in a mixing tank and flocculation using a hydrocyclone. Polyaluminum chloride (PAC) was used as the coagulant. The coagulation process was tested at stirring speeds of 100–140 rpm and coagulant doses of 150–300 mg/L. The results showed that a coagulant dose of 300 mg/L and a stirring speed of 140 rpm achieved the highest removal efficiencies: 95.45% for TSS and 95.24% for turbidity. A two-way analysis of variance (ANOVA) confirmed that the coagulant dose significantly affected removal efficiency (p=0.049), whereas the stirring speed did not have a significant effect (p=0.77). Furthermore, particle size analysis (PSA) and zeta potential tests indicated that the PAC coagulant successfully destabilized the suspension in the wastewater, leading to the formation of large aggregates and accelerating the separation process. Overall, these results indicate that combining a coagulation mixing tank with a hydrocyclone flocculation unit offers an efficient and rapid solution for treating batik wastewater.   Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78665 10.14710/presipitasi.v23i1.188-202 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 188-202 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 188-202 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78665/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/79551 2025-12-13T04:17:17Z presipitasi:RCS

Assessing Urban Carbon Sequestration Capacity under Land Use Changes Tawakkal, Irfan Anggraini, Nani Muis, Ramdiana Fariz, Reza Darma Al Akrim, Djusdil Hutagalung, Ira Rumiris Rachman, Indriyani Matsumoto, Toru Climate change mitigation; Indonesia; InVEST; land use change; model; urban carbon stocks A significant amount of global greenhouse gas (GHG) emissions comes from Indonesia, largely driven by deforestation and land degradation. As a developing nation, it is also dealing with the growing pressures of urban expansion. This study assesses the distribution of carbon stock in Parepare City, South Sulawesi, Indonesia. Notably, Parepare City has not yet experienced extensive land-use transformations, retaining substantial carbon stock, which positions it as a proactive case study for preventing future carbon loss amidst ongoing urbanization. Using the InVEST Carbon Storage and Sequestration model with SPOT 7 satellite imagery (2016) and global carbon density data, the research quantifies carbon storage across various land use/land cover (LULC) types. Analysis reveals natural ecosystems, particularly mixed forests and fields, hold the highest carbon storage potential. The total estimated carbon stock in Parepare City is 1,456,909.41 Mg C. These findings emphasize the urgent need for climate-responsive land management, including forest conservation, and urban greening, to enhance local carbon sinks and support Indonesia's climate change mitigation goals. This assessment provides crucial insights for urban planners and policymakers to balance growth with ecosystem conservation for a susta00inable future. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79551 10.14710/presipitasi.v22i3.937-949 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 937-949 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 937-949 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79551/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/52063 2023-04-08T21:36:46Z presipitasi:RCS

Risk Factor Analysis of Dust Exposure with Symptoms of Respiratory Disorder in Brick Industry Workers in Tegowanuh Sub-District, Kaloran District, Temanggung Regency Ramadhansyah, Muhammad Fadli Setiani, Onny Budiyono, Budiyono Sulistiyani, Sulistiyani Joko, Tri Kesehatan Masyarakat; Kesehatan Lingkungan; Kesehatan Lingkungan Industri Dust exposure; symptoms of respiratory disorder; brick industry workers The brick industry has the potential to create a source of pollution in the form of dust which is harmful to the environment and workers health from the burning process. This study aims to determine the risk factors and analyze the relationship between dust exposure and symptoms of respiratory disorder in workers. This study used the total sampling technique to choose a sample of 75 participants for an observational study with a cross-sectional approach. The results showed that the average total dust particulate levels at 13 points was 1748.47 µg/Nm3 and the average inhaled dust content in 75 respondents of 4.56 mg/m3. The results of the analysis showed that the variables associated with symptoms of respiratory disorder were inhaled dust levels (p=0.023), working period (p=0.040), length of exposure (p=0.032), and use of personal protective equipment (p=0.015). Workers in the brick sector in Tegowanuh Sub-District may have respiratory symptoms more frequently depending on their exposure to amounts of inhaled dust, working period, exposure duration, and use of personal protective equipment. During the work process, it is advised to use personal protective equipment as a mask to prevent the onset of respiratory problems. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52063 10.14710/presipitasi.v20i1.126-139 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 126-139 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 126-139 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/52063/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/15915 2020-04-17T11:34:40Z presipitasi:RSA

Pemanfaatan Kitosan dan Teknologi Plasma untuk Penyisihan COD, TSS, dan Warna pada Limbah Cair Industri Paper & Packaging Saphira, Debby Bella Syakur, Abdul Purwono, Purwono Industri paper & packaging adalah industri yang menghasilkan limbah cukup banyak karena kegiatan produksi yang berlangsung terus-menerus. Salah satu limbah yang dihasilkan adalah limbah cair yang mengandung COD, TSS, dan warna yang tinggi dan berpotensi untuk mencemari lingkungan apabila tidak diolah. Pengolahan yang dilakukan adalah pretreatment koagulasi-flokulasi dan pengolahan selanjutnya dengan teknologi plasma tegangan tinggi. Hasil pengolahan menggunakan koagulasi-flokulasi menggunakan koagulan kitosan menunjukkan terjadinya penyisihan konsentrasi optimal pada dosis 40 mg/l dengan efisiensi penyisihan COD 81,35%, TSS 96,34%, dan warna 98,18%. Kemudian limbah diolah dengan teknologi plasma dengan tegangan tinggi 15 kV dan variasi waktu kontak 10, 20, 30, 40, 50 menit. Didapatkan hasil optimal pada waktu 50 menit pada penyisihan konsentrasi COD, TSS, maupun warna. Diketahui bahwa semakin lama waktu kontak limbah dengan plasma tegangan tinggi maka semakin banyak spesies aktif pendegradasi limbah seperti H•, OH•, dan H2O2 yang terbentuk sehingga pendegradasian limbah akan semakin lebih baik.Kata kunci: COD, Koagulasi-Flokulasi, Limbah Industri Paper & Packaging, Teknologi Plasma, TSS, Warna. Universitas Diponegoro 2017-11-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/15915 10.14710/presipitasi.v14i2.62-67 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 62-67 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 62-67 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/15915/pdf Copyright (c) 2017 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/65311 2025-05-18T20:39:07Z presipitasi:RSA

Thermophilic Digestion of Palm Oil Mill Effluent: Enhancing Biogas Production and Mitigating Greenhouse Gas Emissions Anwar, Dedy Simanjuntak, Evy Enjelina Sitepu, Ivana Kinda, Meiyer Marthen Nainggolan, Ellyas Alga Wibowo, Yudha Gusti Teknik Lingkungan Thermophilic anaerobic digestion; biogas; methane emission mitigation; POME; COD reduction This study investigates the impact of thermophilic anaerobic digestion on biogas production and methane emission reduction from Palm Oil Mill Effluent (POME). Conducted under controlled conditions at 55°C and 65°C, the research aims to optimize biogas yield and reduce Chemical Oxygen Demand (COD) levels. The findings indicate that thermophilic digestion at 65°C significantly enhances biogas production, yielding 1.81 L Biogas per liter of POME over an 8-day period, compared to mesophilic conditions. Furthermore, the study demonstrates substantial COD reduction, supporting a more efficient and environmentally friendly process. By capturing methane emissions and converting them into a renewable energy source, this method aligns with global climate policies and greenhouse gas reduction targets. The integration of thermophilic anaerobic digestion into POME treatment presents a viable solution for the palm oil industry to improve waste management practices and contribute to sustainable development goals. Future research should explore large-scale implementations to maximize the environmental and economic benefits of this technology. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/65311 10.14710/presipitasi.v21i3.734-746 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 734-746 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 734-746 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/65311/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39931 2022-02-16T03:26:18Z presipitasi:RSA

Solar-Powered Electrocoagulation System for Tofu Wastewater Treatment and its Characteristic Muryanto, Muryanto Sari, Ajeng Arum Pertiwi, Sunu Prasetyo, Danar Aji Sudarno, Sudarno Teknik Lingkungan Electrocoagulation; electrolyte NaCl; solar panel; tofu wastewater This study aims to investigate the ability of solar-powered electrocoagulation for tofu wastewater, especially for reducing COD and TSS. This feasibility was compared with conventional electrocoagulation using electricity from the state electricity company. The study was conducted on a laboratory scale using a batch reactor electrocoagulation and aluminium electrode. The types of electrolytes used are sodium chloride and potassium chloride. The contact time is 0, 2, 4, 6, and 8 hours. The results showed that removal of COD and TSS in tofu wastewater increases with a longer electrolysis time. During two hours of electrolysis time, the removal of COD and TSS were 25 and 53.85%, respectively. This process yielded the highest COD and TSS removal of 75 and 76.9%, respectively, at 6 hours. Pseudo-second order kinetics about COD removal, both in conventional and solar panel systems, is concluded. By adding NaCl electrolytes, the conductivity of wastewater was increased, and then the removal of COD and TSS was also increased. At the end of the electrolysis time (5 hours), the pH of wastewater was neutral. The results of sludge characterization using FTIR showed the presence of hydroxyl groups, amide compound, and aromatic compound.  The process of using solar panels gives results slightly different from conventional electricity, but has advantages in terms of lower operating costs and environmental friendly. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39931 10.14710/presipitasi.v18i2.338-348 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 338-348 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 338-348 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39931/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/9500 2016-05-05T04:32:12Z presipitasi:RVA

Detail Desain Sistem Penyediaan Air Bersih Menggunakan Sumber Mata Air (Studi Kasus DAS Citarik, Kecamatan Cimanggung, Kabupaten Sumedang Nugeraha, Winardi Dwi Oktiawan, Wiharyanto Environmental Engineering; Environment spring, detail design, water supply system Water is one of the fundamental nedds of human being, but not everyone could easly access it. At kecamatan Cimanggung, Kabupaten Sumedang there are a few spring water that could be used, but there is no sufficient clean water supply system available. this has caused the people at the area found difficulties to obtain clean water. Universitas Diponegoro 2008-03-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9500 10.14710/presipitasi.v4i1.85-91 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 85-91 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 85-91 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9500/7626

oai:ojs.ejournal.undip.ac.id:article/54459 2023-08-18T02:24:32Z presipitasi:RSA

Bioconversion of Black Soldier Fly (BSF) from Organic Waste Composting into Biodiesel Assisted by Whole Cell Microbial Lipase Biocatalyst through Direct Transesterification Process Ningrum, Sari Sekar Zulaika, Aidha Hanif S, Briantama Ayu Dinda, Dewa Ilmu Lingkungan Black soldier fly; biodiesel; organic waste; whole cell biocatalyst; direct transesterification Black Soldier Fly or Hermetia Illucens (BSF) is known for its potential as a biological agent that helps in the process of natural conversion of organic waste. Resulting compost and a large number of BSF colonies, potentially to be use as a non-food raw material in bioenergy production. The Method is BSF conversion experiment by direct transesterification reaction using Lab-scale bioreactor in 100ml three bottle neck flasks, the solution mixture consists of BSF powder, immobilized whole cell biocatalyst, and solvent. The Result is although in appearance the structure of the test mixture solution did not show an oily character, but based on the viscosity and density test, the test solution had density value 0.81 g/cm3 and viscosity value 1,024 mm2 /s which are above the value of the viscosity and density of methanol but still below the value of the viscosity and density of both SNI and EN14214 biodiesel standard, this could be due to insufficient separation or reaction, imperfect condition, and impurities that are still present in biodiesel products. It can be concluded that a transesterification reaction has occurred in this trial, however further analysis and more experiments are required to definitely conclude the changes in biodiesel production. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54459 10.14710/presipitasi.v20i2.439-451 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 439-451 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 439-451 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54459/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/22922 2020-04-17T11:38:29Z presipitasi:RSA

Analisis Kuantitatif Sistem Manajemen Lingkungan Berdasarkan Klausul ISO 14001:2015 Ramadan, Bimastyaji Surya Hapsari, Santika Budi Pramesti, Ajeng Lhaksita Ikhlas, Nurani Teknik Lingkungan; Ilmu Lingkungan; Manajemen Rekayasa Lingkungan ISO 14001:2015, Pengelolaan Limbah, Self Assessment, Sistem Manajemen Lingkungan PT. X merupakan perusahaan yang bergerak dalam bidang pengelolaan dan pengolahan limbah, sehingga sistem manajemen lingkungan yang baik dan benar sangat diperlukan dalam proses produksinya. Dokumen ISO 14001:2015 menjadi acuan PT. X dalam melakukan sistem manajemen lingkungan. Sertifikasi Sistem Manajemen Lingkungan ISO 14001 : 2015 merupakan bukti bahwa PT.X telah secara aktif melakukan audit eksternal maupun internal dalam bentuk self assessment dengan acuan yang ada pada klausul ISO 14001 : 2015. Pada penelitian ini dilakukan analisis secara kuantitatif menggunakan panduan self assesment yang dikeluarkan oleh Global Environmental Management Initiative (GEMI). Checklist ini berisikan daftar persyaratan yang mengacu pada standar ISO 14001:2015, dan ditulis dalam format pertanyaan baku beserta skoring kuantitatif. Dari hasil analisa yang telah dilakukan, PT. X telah memenuhi prinsip ISO 14001:2015 yang dapat dilihat dengan adanya Standard Operating Procedure (SOP) yang berisi tata cara operasi, proses produksi dan pemeliharaan lingkungan, serta terdokumentasikannya kebijakan dan komitmen manajemen puncak tentang sistem manajemen lingkungan. Kebijakan dan komitmen lingkungan merupakan prinsip utama yang menjadi dasar untuk diterapkannya sistem manajemen lingkungan. Universitas Diponegoro 2019-06-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22922 10.14710/presipitasi.v16i1.1-7 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 1-7 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 1-7 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22922/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/69436 2025-12-04T00:06:42Z presipitasi:RSA

Wastewater Removal Pollutants Using Polyethylene terephthalate Media : Moving Bed Biofilm Reactor Muliyadi, Muliyadi Purwanto, Purwanto Sumiyati, Sri Budiyono, Budiyono Sudarno, Sudarno Warsito, Budi Teknik Linkungan;Ilmu Lingkungan Anaerobic; Degradation Kinetics; Wastewater; Pollutants; MBBR The increasing wastewater necessitates innovative wastewater treatment methods, such as anaerobic MBBR with PET as media, which enhance microbial degradation and biofilm formation. The aim was to analyze the rate of degradation kinetics in anaerobic MBBR reactors for biological wastewater treatment. This research examined three factors: the BOD, COD, and TSS. Domestic wastewater was used in this study. The reactor measured 40 × 40 × 50 cm and had a thickness of 4 mm. The construction was performed using glass material. The operation was performed for 30 days. Microorganisms grew and reproduced on the surface of the plastic bottle cap media during the anaerobic bioreactor seeding process by adding as many local microorganisms as 1.6/70 liters of wastewater. The study revealed that domestic wastewater used for wastewater treatment has BOD, COD, TSS, Ammonia, and Fat contents that exceed the set threshold value. The BOD/COD ratio was 0.55. After acclimatization, the biofilm was fully developed, effectively removing organic contaminants and producing fungal polysaccharides. In conclusion, the study of substrate concentration and degradation kinetics is crucial for system design and operation, emphasizing the need for substrate optimization to enhance microbial activity. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69436 10.14710/presipitasi.v22i2.405-419 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 405-419 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 405-419 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69436/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42857 2022-12-14T20:16:03Z presipitasi:RVA

The Presence of Picnic Space in Domestic Environment when COVID-19 Condition as Improving the Quality of Space and Mental Health Werdiningsih, Hermin Soemadyo, Indriatjario Harani, Arnis Rochma Architecture, Urban Design, Design Domestic environment; picnic space; spatial quality; COVID-19; formation process The condition of the COVID-19 pandemic since 2020 has shaped changes in daily life, where the use of the living environment has become one of the things that have changed. Activities usually carried out outside the living environment now must be covered in it. In this paper, the domestic environment is understood as where private daily domestic activities usually occur. This paper aims to expand the understanding of picnic space in the domestic environment. Seeing how the picnic space is present in the domestic area has the potential to expand the understanding of space in architecture related to spatial quality. Investigates the relationship between activity and space as the basis for understanding the quality of space in a domestic environment. This paper uses a qualitative method to reveal the various activities and explores how the quality of space in the domestic environment has changed during the COVID-19 pandemic. Data was collected through direct observation, photos, interviews, and further analysis. The study finds that the domestic environment can appear as a picnic space with a relationship between humans and objects or an environment that supports happiness and improves mental health. The emergence of picnic space in the domestic environment occurs through three processes: the relationship between the supporting object, actor, and place, blurring the boundary of virtual and physical, and the relationship between object and atmosphere. The finding can enrich the field of architecture, especially in interpreting space, boundaries, and their relation to the mental health of its users. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42857 10.14710/presipitasi.v19i1.99-107 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 99-107 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 99-107 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42857/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10990 2016-05-04T09:08:33Z presipitasi:RVA

OPTIMALISASI INSTALASI PENGOLAHAN LUMPUR TINJA DENGAN PENGOMPOSAN LUMPUR TINJA (Studi Kasus IPLT SEMARANG) Oktiawan, Wiharyanto Priyambada, Ika Bagus Environmental Engineering septage treatment facility, septage, compost Semarang Septage  Treatment  Facillty  is a septage manufacture which serves Semarang  Clty distrik. At this moment,  the facility  is disfunction  because  the septage pile up in the anaerobic pond.  Because  of that, Semanng Septage Treatment  Facility  has to be evaluated  which  is consisf of technical, infrastructure and management evaluations. As the resulfs of  the evaluation, the new anaerobic pond is recomended in 2007, so as the new sludge drying bed in 2005 and 2010.  The septage of Semarang Septage Treatment Facility  is very huge that is about 3m3/day.  The solution that can be taken is composting. The septage is fulfill the compost characteristic after it was dried in 30 days. The management of septage composting are consist of transporation, sifterization, weighing and packaging, and also transportation and storage. Thte price of compos product is Rp. 440,00/kg in 2005 and it will rise to 707,00 in 2014. it is relatively cheap if it is compared with the prices of another fertilizers, so it is proper to sold in the market. Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10990 10.14710/presipitasi.v3i2.53-57 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 53-57 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 53-57 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10990/8676

oai:ojs.ejournal.undip.ac.id:article/57457 2025-05-18T20:36:13Z presipitasi:RSA

Utilization of Sludge from Cow Dung Biogas as Additional Feed for Sangkuriang Catfish (Claries gariepinus) Saputri, Dina Dyah Wahyuni, Sri Daani, Alfiia Rahma Biology; Biochemistry Additional feed; bigas; Claries gariepinus; cow dung; sludge Catfish farming is often faced with the availability of feed which is relatively expensive, so it is necessary to find a solution to support the catfish farming business—provision of sufficient and good quality feed to support fish growth. This study aimed to determine the level of sludge suitable for use as additional feed. Observations were made using the experimental method with a Randomized Block Design (RBD) research design involving one control group and three treatment groups with three repetitions each. The parameters observed were length (p), width (l), and fish weight (b). The environmental parameters observed were water temperature and pH. The results showed that the best sludge presentation to be given as additional feed was in treatment 1 with an average weight between 71.33-73.75 grams, an average length ranging from 18.13 to 22.17 cm, and a width of 3.16. – 3.27 cm. Survival Rate is between 275-78%. Specific Growth Rate (SGR) 1%. Specific Weight Growth Rate (SWGR) is between 2-3%. Based on the results, this study recommends that in the use of biogas output sludge as pellets, it is necessary to improve the quality of feed by adding good nutritious ingredients for catfish. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57457 10.14710/presipitasi.v21i1.61-69 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 61-69 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 61-69 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57457/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/27771 2020-08-30T22:28:29Z presipitasi:RSA

Sintesis dan Karakterisasi Zeolit dari Abu Bagasse Sebagai Adsorben Logam Berat Cu(II) Zeolites Synthesis and Characterization from Bagasse Ash as Cu (II) Heavy Metal Adsorbent Setiawan, Adhi Hanun, Jihan Nabillah Afiuddin, Ahmad Erlan Chemical Engineering; Wastewater treatment; Material Engineering abu bagasse tebu; hidrotermal; zeolit Chemical Engineering; Wastewater treatment; Material Engineering sugarcane bagasse ash, hydrothermal, zeolite Abu Bagasse merupakan limbah padat yang dihasilkan dari sisa pembakaran ampas tebu di industri gula. Kandungan silika yang relatif tinggi pada abu bagasse dapat dimanfaatkan sebagai  bahan baku pembuatan  zeolite. Zeolite dapat dimanfaatkan sebagai adsorben logam berat pada pengolahan limbah cair industri. Penelitian ini bertujuan untuk mensintesis zeolite dari abu bagasse serta mengaplikasikan zeolite sebagai adsorben logam Cu(II) di dalam reaktor sistem kontinyu. Pengaruh waktu kontak, ukuran zeolite, serta konsentrasi larutan Cu(II) terhadap efisiensi penyisihan logam telah dipelajari pada penelitian ini. Sintesis Sintesis zeolite dilakukan menggunakan metode hidrotermal pada suhu 100°C selama 7 jam. Zeolit hasil sintesis dikarakteristisasi menggunakan SEM-EDX, XRD, FTIR, dan BET Proses adsorpsi dilakukan dengan menggunakan reaktor kontinyu dengan laju alir 0,4 L/menit serta dialirkan selama 60 menit dengan pengambilan sampel setiap interval waktu 15 menit. Hasil analisis SEM-EDX menunjukkan bahwa Zeolit memiliki morfologi tidak teratur serta mengandung Si sebesar 35,15%. Hasil XRD menunjukkan bahwa kristalinitas zeolite relatif rendah. Luas permukaan spesifik zeolite pada ukuran 100 mesh dan 200 mesh masing-masing sebesar 439,48 m2/g dan 697,76 m2/g. Hasil pengujian adsorpsi limbah Cu(II) terbaik diperoleh pada kondisi zeolit dengan ukuran partikel 200 mesh, konsentrasi air limbah Cu(II) 25 mg/L, dan waktu operasional 60 menit dengan efisiensi penyisihan Cu(II) sebesar 41,57%. The relatively high silica content in bagasse ash can be used as raw material for making zeolite. Zeolite can be used as a heavy metal adsorbent in industrial wastewater treatment. This study aims to synthesize zeolite from bagasse ash and to apply zeolite as an adsorbent of Cu(II) in a continuous system reactor. The effects of contact time, zeolite size, and concentration of Cu(II) solution on the removal efficiency of metals have been studied in this research. The synthesis of zeolite was carried out using the hydrothermal method at 100°C for 7 hours. The synthesized zeolite was characterized using SEM-EDX, XRD, FTIR, and BET The adsorption process was carried out using a continuous reactor with a flow rate of 0.4 L/min and flowed for 60 minutes with sampling at 15-minute intervals. The zeolite size used was 100 and 200 mesh. The results of SEM-EDX analysis showed that Zeolite has an irregular morphology and contains Si at 35.15%. The XRD results show that the zeolite crystallinity is relatively low. The specific surface area of zeolite at size 100 mesh and 200 mesh were 439.48 m2 /g and 697.76 m2/g respectively. The best Cu(II) waste adsorption test results were obtained under zeolite conditions with a particle size of 200 mesh, the concentration of Cu(II) wastewater of 25 mg/L, and an operational time of 60 minutes with a removal efficiency of Cu(II) of 41.57% Universitas Diponegoro Laboratorium Limbah Politeknik Perkapalan Negeri Surabaya 2020-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/27771 10.14710/presipitasi.v17i1.85-95 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 85-95 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 85-95 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/27771/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46222 2023-03-29T21:11:54Z presipitasi:RSA

Analysis of Potential RDF Resources from MSW Landfills in Major Cities of Indonesia Susilo, Andre M. Hartono, Djoko Angga Kusuma, Muhammad Wulandari, Dwica Calorific value; energy; landfill mining material; MSW; RDF Many Indonesian landfills include the waste that has the potential to be used as an alternative fuel in the cement industry. It is converted into RDF to enable cement manufacturers to use waste. The research was conducted to know the Municipal Solid Waste (MSW) potential of 3 landfills (Bantargebang, Sumur Batu, and Cipayung) as a renewable fuel. Before processing, MSW is characterised because there are quality standards that the waste must meet before being used as fuel. That is a quantitative study combining a literature review and laboratory test methods. The parameters that have been measured from the three sample sites were water content, ash content, volatile level, and calorific value. The results showed that the total energy value acquired from Refuse Derived Fuel (RDF) resources of Bantargebang, Sumur Batu, and Cipayung landfills was 2742.14, 2741.24, and 2671.32 kcal/kg, respectively. In addition, based on the water content at the three sample locations, only rubber samples qualified for RDF processing. In contrast, rubber was the sole component that did not match the processing conditions to become RDF based on ash content. Furthermore, the volatile level of the three research sites meets the RDF standard. Universitas Diponegoro 2022-07-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46222 10.14710/presipitasi.v19i2.330-340 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 330-340 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 330-340 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46222/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/46222/10649 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10997 2016-05-04T22:08:38Z presipitasi:RVA

KAJIAN RIPJM BIDANG CIPTA KARYA DI KABUPATEN PEMALANG DALAM MEWUJUDKAN TARGET PENCAPAIAN MDGs BIDANG LINGKUNGAN Maryono, Maryono Environmental Engineering Middle Term Of Development and Investment Program On Infrastruktur (RIPJM), Pemalang Local State, Bridging MDGs . Universitas Diponegoro 2009-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10997 10.14710/presipitasi.v6i1.28-33 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 28-33 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 28-33 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10997/8681

oai:ojs.ejournal.undip.ac.id:article/61065 2025-05-18T20:37:10Z presipitasi:RCS

Determining Water Quality Status and Assimilation Capacity of Pollutant Loads in West Lombok Regency Ramdlan, M Said Widiyanti, Astrini Rizkiadi, Hilman Sidiq, Muhamad Arif Ihwan, Khaerul Teknik Lingkungan; Ilmu Lingkungan Assimilation capacity; babak watersheds; dissolved iron (fe); do; pollution index; total phosphate Babak watershed is one of the essential watersheds in Lombok Island providing water supply for irrigation, fish pool, drinking water supply, and micro-hydro power plant. Excessive human activities degrade the water quality of Babak watershed, and more pollutants are present in the water column. Thus, this study aims to determine Babak watershed's water quality status and assimilating capacity to plan effective and holistic mitigation measures properly. The study calculates the pollution index (PI) using a formula based on the Minister of Environment No.115/2003 Decree and assimilating capacity (AC) based on the Minister of Environment No.110/2003 Decree. The results found that Babak watershed is lightly polluted, defined by exceeding chemical parameters such as DO, total phosphate, nitrite, and dissolved iron (Fe). Similarly, these parameters (total phosphate, nitrite, and Dissolved iron (Fe) also reached the maximum assimilation capacity of Babak watershed to contain and self-purify these pollutants from the water column. Thus, planning mitigation and adaptation measures are required to prevent further contaminations in this watershed. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61065 10.14710/presipitasi.v21i2.419-432 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 419-432 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 419-432 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61065/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/33579 2020-12-16T21:33:05Z presipitasi:RSA

Peningkatan Kinerja Keberlanjutan dengan Strategi Eco-efficiency: Studi Kasus di UKM Batik SS Jogja Improving Sustainability Performance with Eco-Efficiency Strategies: A Case Study in SME Batik SS Jogja Hartini, Sri Yulianto, Prasetyo Teknik Industri; Sistem Produksi Berkelanjutan batik; eco-efficiency; life cycle assessment; Rasio NPO Industrial Engineering; Sustainable Production System Batik, eco-efficiency, life cycle assessment, non product output Batik merupakan produk unggulan bangsa Indonesia sekaligus Warisan Budaya Dunia. Namun proses produksi ditengarai berpotensi membahayakan lingkungan. Penelitian ini bertujuan untuk menganalisis proses produksi Batik menggunakan pendekatan eco-efficiency. Tahap identifikasi dilakukan dengan mengidentifikasi biaya non product output. Analisis dampak lingkungan dilakukan dengan life cycle assessment (LCA) dengan metode eco-cost dan eco-mapping. Tahap analisis sebab dilakukan dengan fishbone diagram. Area permasalahan terjadi pada proses pengecapan, pewarnaan dan penglorodan. Pengolahan LCA menggunakan software simapro v7.1.8 menyimpulkan bahwa terdapat dampak negatif pada kategori  global warming (CO2 eq) sebesar 14.804,2 kg dan aquatic ecotoxic (TEG eq) sebesar 10.241.717 kg atau setara dengan biaya lingkungan sebesar Rp 700.394.880/tahun. Rekomendasi perbaikan dengan membuat bak penampung lilin, penambahan penugasan bagi salah satu pekerja, dan membuat sistem pengolahan limbah sederhana dengan prinsip pengolahan secara biologi aerob.  Penelitian ini memberikan keuntungan secara ekonomis, lingkungan dan sosial. Rekomendasi yang diberikan diestimasi dapat menurunkan rasio non product output sebesar 0,01224 dengan keuntungan ekonomis berkisar Rp 25.571.892/ tahun Batik is a World Cultural Heritage. However, the production process is suspected to have a negative impact on the environment. This study aims to analyze the Batik production process using an eco-efficiency approach. The identification stage is carried out by identifying the non-product output costs. The environmental impact analysis was carried out by means of a life cycle assessment (LCA) using the eco-cost and eco-mapping methods. The causal analysis stage was carried out with a fishbone diagram. The problem area occurs in the stamping, coloring and washing processes. LCA processing using simapro v7.1.8 software concluded that there was a negative impact on the global warming (CO2 eq) category of 14,804.2 kg and aquatic ecotoxic (TEG eq) of 10,241,717 kg or equivalent to an eco-cost of Rp 700,394,880 / year. Recommendations for improvement by making used candle  container, adding assignments for one of the workers, and creating a simple waste treatment system with the principle of aerobic biological treatment. This research provides benefits economically, environmentally and socially. The recommendations given are estimated to reduce the non-product output ratio by 0.01224, with an economic profit of around Rp 25,571,892 / year. Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33579 10.14710/presipitasi.v17i3.295-306 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 295-306 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 295-306 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33579/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/78287 2026-04-21T07:44:25Z presipitasi:RCS

Decision-Ready Composite Performance Index for Raw Water Supply Systems: PLS-SEM and Generalized Reduced Gradient Andawayanti, Ussy Suhartanto, Ery Lufira, Rahmah Dara Siswoyo, Hari Sudiarti, Sri Utami Pratama, Rizki Ramadhani Teknik Pengairan; Manajemen Air Grg optimization; performance index for raw water supply systems (pirwss); pls-sem; Raw water supply systems; watershed management Reliable raw water service depends on asset condition, institutional capability, and watershed context; existing checklists in Indonesia fail to produce a validated, decision-ready performance score.  This study develops a composite performance indicator for raw water infrastructure that incorporates technical (Tk), institutional/non-technical (NT), and environmental (Li) dimensions. Data were collected from 21 schemes in Lombok–Sumbawa, West Nusa Tenggara Province, Indonesia (NTB), with 160 respondents, using field assessments and 1–4 scale questionnaires. Estimated reflective formative partial least squares structural equation modeling was then applied, and GRG calibration was used to minimize deviation from field scores under non-negativity and unit sum constraints for interpretability and portability. All pillars contribute positively and significantly to the composite index, which exhibits high explanatory power (R² = 0.997). The calibrated index is PIRWSS = 0.440 PITk + 0.340 PINT + 0.220 PILi, with SSR ≈ 83.412, RMSE ≈ 0.522, MSE ≈ 5.721, and ≈ 99.70% accuracy relative to field benchmarks. A cross-site analysis shows higher performance in Lombok than in Sumbawa, reflecting hydroclimatic conditions and conveyance configurations. The index provides utilities and regulators with a transparent, reproducible framework for benchmarking and prioritizing operations, maintenance, rehabilitation, and source water protection Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78287 10.14710/presipitasi.v23i1.339-350 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 339-350 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 339-350 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78287/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/1462 2012-03-29T04:45:01Z presipitasi:RVA

PENGARUH RESIRKULASI LINDI TERHADAP POTENSI PRODUKSI GAS METAN (CH4 ) Ika, Priyambada Bagus Mochamad, Budiharjo Arief Environmental Engineering; Environment Resirkulasi lindi, Gas metan, Bioreaktor landfill Bioreactor  landfill  merupakan  metoda  pengembangan  dan  konvensional  Landfill  yang  bertujuan mempercepat  proses  degradasi  sampah  yang  tertimbun di  dalam  Landfil  dengan  pengumpulan  dan pensirkulasian kembali lindi ke dalam timbunan sampah yang merupakan alternatif pengelolaan yang dinilai efisien dalam menurunkan baik kuantitas maupun kandungan pencemar yang ada dalam lindi dan  mampu  meningkatkan  potensi  gas  karena  lindi  mempunyai  kandungan  organik  yang  tinggi. Penelitian  ini  bertujuan  mencari  nilai  potensi  produksi  gas  metan  (CH4)  dengan  resirkulasi  lindi. Sampah yang digunakan adalah sampah segar dan sampah umur 3-4 bulan, dengan parameter pH dan  temperatur.  Dari  hasil  penelitian  didapat  nilai  puncak  produksi  gas  CH4  dengan  resirkulasi  lindi pada reaktor sampah segar yaitu sebesar 0,292 liter pada HRT ke-22, untuk reaktor sampah umur 3-4 bulan  5,195  liter  pada  HRT  ke-34.  Sedangkan  untuk  reaktor  kontrol  sampah  segar  hingga  akhir penelitian tidak memproduksi gas CH4, nilai puncak reaktor kontrol sampah umur 3-4 bulan sebesar 2,392 liter pada HRT ke-25. Universitas Diponegoro 2012-02-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1462 10.14710/presipitasi.v7i1.36-41 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 36-41 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 36-41 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1462/1227

oai:ojs.ejournal.undip.ac.id:article/50720 2023-01-04T02:30:50Z presipitasi:RSA

The Moisture Content of Sawdust Fuel Pellets at Different Drying Periods Junaidi, Junaidi Pusparizkita, Yustina Metanoia Juliatiko, Attaya Rahmadiputra, Ngakan Ade Sudarno, Sudarno Waste treatment; Environmental Science, Biomass treatment Pellet; biomass; fuel; moisture content; drying The development of pellet fuel from biomass has a great opportunity because Indonesia is an agricultural country. Utilizing this biomass can increase economic value, minimize waste generated, and reduce emissions released into the environment. In this study, the pellet fuel was made from sawdust obtained from the Semarang wood sawmill industry. The raw materials are mixed with adhesive, water and then formed using a pellet machine. The high water content in the pellets that have just come out of the pelletizing (27%) process requires drying treatment. The aim of this work was to find out the effect of drying time on the moisture content of the pellet fuel to meet existing standards. The variation of drying time used is 10, 15 and 20 minutes at 100° C. The results showed that the moisture content of the pellet was 22% (10 min), 19% (15 min) and 17% (20 min). The water content in the pellets will decrease 4% on average along with the drying time. However, the water content was still slightly higher than the specified standard (8-13%). Based on model predictions, the necessary drying time is 30-35 min. Ash content obtained from this study is 0.7%. The drying time can affect the density of the resulting pellet product.  Accordingly, further studies are needed to determine the drying optimum temperature. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50720 10.14710/presipitasi.v19i3.599-606 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 599-606 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 599-606 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50720/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/12488 2020-04-17T11:33:29Z presipitasi:RSA

PENGGUNAAN BIOCATALYS ELECTROLYSIS DALAM PENURUNAN KONSENTRASI TOTAL SUSPENDED SOLID (TSS) DAN CHEMICAL OXYGEN DEMAND (COD) LIMBAH DOMESTIK Oktiawan, Wiharyanto Hadiwidodo, Mochtar Purwono, Purwono Environmental Engineering Biocatalys Electrolysis, COD, TSS, limbah domestik, Metan, hidrogen gas Secara umum air limbah kegiatan rumah tangga (domestik) dibuang langsung menuju badan air seperti sungai dan danau. Pengolahan limbah cair secara biologis (aerob) sering menghasilkan lumpur dalam jumlah besar. Jumlah lumpur dapat dikurangi dengan pengolahan anaerob. Sistem bioelektrokimia merupakan salah satu terobosan teknologi yang memungkinkan untuk mengolah limbah sekaligus menghasilkan energi berupa gas metana. Penggunaan biocatalys electrolysis dapat mengatasi kelemahan proses anaerob secara konvensional dalam penurunan konsentrasi TSS dan COD limbah domestik salah satunya mampu menghasilkan gas H2 dari proses elektrolisis. Penambahan daya ekternal sebesar 6 volt mampu menyisihkan TSS sampai kadar 82 mg/l dari kadar semula 157 mg/l. Tegangan 12 volt mampu menurunkan kadar COD sampai 47,46 mg/l dari kadar awal 223 mg/l. Penyisihan TSS paling rendah pada waktu elektrolisis 15 menit dengan kadar 87 mg/l. Penambahan waktu elektrolisis sebanding dengan penurunan konsentrasi COD limbah domestik. Pada penelitian ini kualitas maupun kuantitas gas metana tidak diketahui secara jelas. Selain gas metan, produk fermentasi juga belum diketahui. Universitas Diponegoro 2016-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/12488 10.14710/presipitasi.v13i2.81-87 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 2 (2016): September 2016; 81-87 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 2 (2016): September 2016; 81-87 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/12488/9429 Copyright (c) 2016 Jurnal Presipitasi https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/62295 2025-05-18T20:39:07Z presipitasi:RSA

The Performance of Household-Scale Horizontal Flow Constructed Wetland (HFCW) Unit for Treating Greywater Suleman, Iriani Putri Sofiyah, Evi Siti Ridhosari, Betanti Teknik Lingkungan; Ilmu Lingkungan; Rekayasa Ilmu Lingkungan Constructed wetland; water hyacinth; greywater; household scale; detention Horizontal flow constructed wetland (HFCW) is a method mimicking natural processes in which plantations are used to treat wastewater. This method demonstrates superior efficacy in the removal of organic pollutants and total nitrogen. Furthermore, it offers the advantage of reduced operational and maintenance expenses. This research employs a household-scale HFCW unit, utilizing water hyacinths (Eichornia crassipes) to treat greywater from a single house. The study aims to assess the HFCW unit's performance in treating greywater at a household scale, with effluent quality compared against Minister of Environment and Forestry Regulation (Regulation Number 68/2016 on Domestic Wastewater Quality Standard) using testing methods in accordance with the Indonesian National Standards (SNI). The results indicate that the HFCW unit removal efficiencies after two days retention time are: BOD5 (74%-93%), COD (47%-80%), TSS (55%-97%), oil and grease (50%-94%), and ammonia (46%-99%). After three days, the unit generally demonstrates improved performance, which are: BOD5 (67%-96%), COD (57%-91%), TSS (51%-97%), oil and grease (11%-99%), and ammonia (35%-99%). Overall, the effluent quality meets government standards for both two- and three-days retention time, establishing the HFCW unit as an effective household-scale greywater treatment solution. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62295 10.14710/presipitasi.v21i3.681-695 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 681-695 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 681-695 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62295/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39756 2022-02-16T03:26:18Z presipitasi:RCS

Water Quality Index Analysis for Water Drinking and Irrigation in the Sumowono Groundwater Basin Putranto, Thomas Triadi Susanto, Novie Pangestuti, Dina Rahayuning Putro, Aji Bagas Geology; Hydrogeology; Geographic Information System groundwater; sodium adsorption; Sumowono; water quality index; Wilcox diagram The Sumowono Groundwater Basin is a cross-district basin located in Central Java Province, between Temanggung Regency, Kendal Regency, and Semarang Regency. The people in this area obtain fresh water from either dug wells or springs. The purpose of this research is to determine the feasibility of groundwater for drinking water and irrigation purposes. The method used was hydrogeological mapping and physical and chemical analysis of 10 groundwater samples. The samples were subjected to empirical testing of the Groundwater Quality Index to determine the feasibility of drinking water and irrigation using Sodium Adsorption Ratio (SAR) analysis and Wilcox diagram. The results showed that all samples physically have tasteless and odorous properties. For the chemical properties produced in the ten samples, the pH value ranges from about 6.85 - 7.27. The electrical conductivity is between 71.6 - 511 µS/cm. Total Dissolved Solids values are between 45.82 and 327.04 mg/L, with total hardness values ranging from 10 to 170 mg/L. From the results of the SAR analysis, it is found that the groundwater classes were included in S1C1 and S1C2, so that groundwater has low alkaline in both sodium and salinity, respectively. Thus, groundwater is considered suitable for consumption and irrigation purposes, Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39756 10.14710/presipitasi.v18i2.241-253 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 241-253 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 241-253 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39756/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/7225 2014-08-27T03:05:07Z presipitasi:RVA

KAJIAN SISTEM PENYEDIAAN AIR BERSIH SUB SISTEM BRIBIN KABUPATEN GUNUNGKIDUL Wardhana, Irawan Wisnu Budihardjo, M. Arief P, Scylla Adhesti Environmental Engineering Environmental Engineering ABSTRAK Sub  Sistem  Bribin  merupakan  salah  satu  dari  13  (tiga  belas)  Sub  Sistem  yang  dimiliki  oleh  PDAM Kabupaten  Gunungkidul.  Sub  Sistem  Bribin  memiliki  sumber  air  baku  yang  sangat  potensial  yaitu berupa  sungai  bawah  tanah  dengan  debit  rata  –  rata  1000  liter/detik.   Namun  pendistribusian  air bersihnya  masih  belum  merata.  Sampai  saat  ini  sudah ada  6.478  SR  yang  terpasang  di  wilayah cakupan  Sub  sitem  Bribin,  namun  baru  27%  yang  sudah teraliri  oleh  air  dari  PDAM.  Hal  ini disebabkan karena keterbatasan  dana dari  PDAM untukmemfasilitasi keseluruhan wilayah  layanan sehingga  pendistribusian  air  bersih  tidak  merata.  Namun  dengan  adanya  penerapan  teknologi mikrohidro, didapatkan debit baru dari sumber Bribin II yang diharapkan dapat meningkatkan tingkat layanan  di  wilayah  cakupan  sub  sistem  Bribin  .  Kondisi  eksisting  yang  ada  saat  ini  menunjukkan tingkat kebocoran produksi sebesar 31 % dengan durasi pelayanan air bersih 7-8 jam perhari. PDAM Sub  Sistem  Bribin  memiliki  kapasitas  produksi  sebesar  60  l/detik.  Debit  dari  sumber  Bribin  II direncanakan  sebesar  80  liter/detik  yang  akan  dipompa  ke  Reservoir  Kaligoro  untuk  selanjutnya masuk kedalam sistem eksisting. Untuk itu akan dipilih satu dari dua alternatif jalur transmisi yang paling  efektif.  Alternatif  yang  terpilih  memiliki  headloss  lebih  kecil,  yaitu  sebesar  45,97  m  dan  sisatekan sebesar 25,03 m. Rencana Anggaran Biaya yang dibutuhkan sebesar Rp. 4.310.577.000,00.Kata kunci: sistem penyediaan air bersih, sub sistem Bribin, teknologi mikrohidro Universitas Diponegoro 2014-03-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/7225 10.14710/presipitasi.v10i1.18-29 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 10, No 1 (2013): Vol. 10 No. 1 (2013); 18-29 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 10, No 1 (2013): Vol. 10 No. 1 (2013); 18-29 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/7225/5893

oai:ojs.ejournal.undip.ac.id:article/53237 2023-08-18T02:24:32Z presipitasi:RCS

Environmental Impact Assessment of Co-firing Implementation at X Steam Power Plant, West Java Nugraheni, Dessy Tri Purwana, Rachmadhi Hamzah, Udi Syahnoedi tenik lingkungan Life cycle assessment; co-firing; environmental impact assessment; steam power plant; biomass; sawdust Co-firing is the activity of adding biomass to the combustion process as a mixed fuel for coal in power plants. In 2021 co-firing has been carried out at 17 PLTUs in Indonesia. The co-firing program at a steam power plant is a form of reducing coal consumption which can reduce carbon emissions while increasing the use of renewable energy without increasing investment in new power plants. PLTU X in West Java, Indonesia has implemented co-firing using sawdust biomass using the direct method without adding or modifying equipment. The use of biomass is obtained from wood-cutting waste, with a ratio of sawdust biomass usage <5%. Assessment of potential environmental impacts is carried out using the Life Cycle Assessment (LCA) method with cradle-to-gate coverage through two scenarios, namely full coal burning, and co-firing. The functional unit uses 1 kWh and the potential impact assessment method used IPCC2021 GWP100 and the CML-IA baseline. The results of the study obtained an assessment of the potential for environmental impact that could reduce the Global Warming Potential (GWP) by 0.13%, acidification by 0.40%, and eutrophication by 0.14%, but there was an increase in ozone layer depletion by 0.72%. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/53237 10.14710/presipitasi.v20i2.334-344 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 334-344 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 334-344 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/53237/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20782 2020-04-17T11:36:43Z presipitasi:RSA

ANALISIS KOMPARATIF PERAN ADAT DAN KEPERCAYAAN DALAM PENINGKATAN KUALITAS LINGKUNGAN PERMUKIMAN BERKACA PADA ADAT YANG ADA DI PERMUKIMAN TRADISIONAL Wardiha, Made Widiadnyana Lingkungan adat; kepercayaan; masyarakat; sanitasi Pembangunan fasilitas air minum dan sanitasi secara swadaya merupakan salah satu cara untuk melibatkan masyarakat dalam program pembangunan. Walaupun masyarakat sudah dilibatkan, namun pemanfaatan fasilitas oleh masyarakat seringkali belum maksimal. Kurangnya kesadaran masyarakat menjadi salah satu faktor. Faktor lainnya yang kemungkinan berperan adalah karena kurang diperhatikannya aspek adat dan kepercayaan dalam proses pembangunan. Makalah ini mencoba mengkaji mengenai peran adat dan kepercayaan masyarakat dalam pembangunan fasilitas untuk meningkatkan kualitas lingkungan permukiman. Tujuannya adalah untuk memberikan salah satu aspek yang dapat diperhatikan apabila akan memberikan sosialisasi atau membangun infrastruktur sanitasi bagi masyarakat. Metode yang digunakan dalam kajian ini yaitu pengumpulan hasil-hasil penelitian yang telah dilakukan dari tahun 2010 sampai tahun 2016 mengenai adat dan kepercayaan di permukiman tradisional yang berpengaruh terhadap perilaku sanitasi masyarakat, yang kemudian dikomparasi dengan hasil penelitian ilmiah lain mengenai peran adat dan kepercayaan dalam peningkatan kualitas lingkungan di masyarakat secara umum. Hasil penarikan kesimpulan pada kajian ini adalah bahwa adat dan kepercayaan merupakan aspek yang cukup kental terkait dengan kehidupan masyarakat Indonesia, dimana hal ini perlu diperhatikan dalam upaya peningkatan kesadaran masyarakat mengenai sanitasi dan program-program pembangunan bidang air minum dan sanitasi. Pelibatan para pemimpin adat di masyarakat serta penggunaan slogan atau motto yang bernuansa adat setempat juga dapat dilakukan dalam program seperti sosialisasi kepada masyarakat. Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20782 10.14710/presipitasi.v15i2.114-121 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 114-121 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 114-121 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20782/14083 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/61819 2025-12-04T00:06:38Z presipitasi:RCS

Exploring the Factor and Cluster of Green Building Practices for Urban Liveability: Case Study Jakarta, Indonesia Suhardono, Sapta Septiariva, Iva Yenis Sianipar, Imelda Masni Juniaty Suryawan, I Wayan Koko Green building practice; factor analysis; cluster analysis; environmental responsibility; urban livability This study investigates the multifaceted landscape of green building practices, focusing on their factor structure and cluster characteristics concerning environmental responsibility and urban livability. A comprehensive analysis identifies distinct factors and clusters, each representing different dimensions of sustainable urban development. This study embarks on an exploration of the complex domain of green building practices, employing Exploratory Factor Analysis (EFA) and k-means clustering to dissect the factor structure and clustering characteristics pertinent to environmental responsibility and urban liability. The factors encompass environmental sustainability and urban convenience, highlighting the delicate balance between ecological consciousness and urban functionality. Delving into demographic variables like income, higher education, age, and marital status, our findings reveal statistically significant correlations, emphasizing the pivotal role these individual characteristics play in shaping preferences towards green building practices. Specifically, our analysis crystallizes into two primary clusters. Cluster 1 emphasizes the essence of "Environmental Sustainability," marked by a strong inclination towards energy efficiency, sustainable materials, and green spaces, reflecting a commitment to ecological stewardship. In contrast, Cluster 2, denoting "Urban Convenience and Access," underscores the importance of proximity to public transport, shopping centres, and workplaces, encapsulating a desire for accessibility and convenience in urban design. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61819 10.14710/presipitasi.v22i1.196-208 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 196-208 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 196-208 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61819/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/41889 2022-12-14T20:16:03Z presipitasi:RCS

Effectiveness of Lead and Cadmium Reduction with Adsorption Method using a Combination of Chitosan and Coffee Grounds (Case Study of Industrial Wastewater PT.X Indonesia) Nurhidayanti, Nisa Ilyas, Nur Ilman Suwazan, Dhonny Teknik Lingkungan; ; Rekayasa Ilmu Lingkungan: Teknik Kimia Adsorption; coffee grounds; cadmium; activated carbon; chitosan; lead PT. X Indonesia (PXI) is a company engaged in laboratory services in Bekasi Regency. Based on a preliminary study, the concentration of cadmium and lead in wastewater shows that it exceeds the quality standard of PerMenLHK No. P12 of 2020. The presence of cadmium and lead in PXI's wastewater must be resolved immediately to avoid dangerous human activities and polluting the environment. The research was initiated by taking wastewater samples and synthesizing the adsorbent from the combination of chitosan and activated carbon from coffee grounds. The method used in this study is an experimental approach with quantitative descriptive methods based on laboratory data using FT-IR, SEM EDX and AAS instruments. The results showed that chitosan biosorbent and 1.4-gram coffee grounds activated carbon resulted in the highest cadmium metal reduction efficiency of 94.35% and led to a metal reduction efficiency of 90.86%. The results concluded that the adsorbent of chitosan-activated carbon coffee grounds is very effective in reducing cadmium and lead metals in the wastewater of PXI. This research needs to follow up by increasing the mass of activated carbon of coffee grounds to meet quality standards. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/41889 10.14710/presipitasi.v19i1.11-23 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 11-23 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 11-23 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/41889/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10957 2016-05-04T09:08:33Z presipitasi:RVA

PREDIKSI CURAH HUJAN KOTA SEMARANG DENGAN FEEDFORWARD NEURAL NETWORK MENGGUNAKAN ALGORITMA QUASI NEWTON BFGS DAN LEVENBERG-MARQUARDT Warsito, Budi Sumiyati, Sri Environmental Engineering FFNN, Quasi Newton BFGS, Levenberg-Marquardt, rainfall This paper study the rainfall prediction at Semarang City as time series data with Feed Forward Neural Network  (FFNN)  model.  The  learning  algorithm  that  be  used  are  the  Quasi  Newton BFGS and Levenberg-Marquardt algorithm. The input unit is determined based on the best of ARIMA model. The computation is done with use  Matlab 7.1 program with 1000 epoch, five unit of hidden layer, 100 replication  and use  input at lag  variabel  1,  12  and 13, respectively. The result shows that the prediction is good in relatively, where Quasi Newton BFGS algorithm result the Mean Square Error (MSE) that more accurate. Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10957 10.14710/presipitasi.v3i2.46-52 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 46-52 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 46-52 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10957/8647

oai:ojs.ejournal.undip.ac.id:article/59826 2024-06-14T22:00:52Z presipitasi:RCS

Inorganic Waste Reduction Planning with The Implementation of Dipo Waste Bank (DWB) and Reverse Vending Machine (RVM) at Diponegoro University Sumiyati, Sri Budihardjo, Mochamad Arief Ramadhan, Bimastyaji Surya Warsito, Budi Kusumasasmita, Hanif Rahman, Ghifar Putra Setiadi, Hizkia Christian Teknik Lingkungan Reverse Vending Machine (RVM); Undip; Dipo Waste Bank (DWB) Plastic waste is a global environmental problem that has existed for a long time and has not been resolved. On a worldwide scale, solid waste increased to 9.1 billion tons, of which 6.9 billion tons was plastic waste. Undip is one of the largest public universities.  As one of the universities that supports the achievement of SDGs Number 12 concerning waste management, Diponegoro University has a Waste Bank, namely the Dipo Waste Bank (DWB). The method used in this study is mass balance. Based on the projected waste generation from 2021-2030, the era of inorganic waste in the composition of plastic bottles at Undip is  42,577 kg/day. DWB is expected to realize independent and sustainable waste management within Diponegoro University (UNDIP). In its course, waste management efforts are felt to be lacking due to several obstacles and participation that are not optimal. There are three scenarios of reducing inorganic waste of  plastic bottles in  the study, namely the  baseline scenario,  the  Dipo Waste Bank (DWB) scenario can achieve the  target  of 20% of waste that can be recovered by DWB and Reverse Vending Machine (RVM). Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59826 10.14710/presipitasi.v20i3.765-775 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 765-775 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 765-775 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59826/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/26174 2020-08-30T23:24:14Z presipitasi:RSA

Risk Analysis of Wosusokas Regional Water Supply System - PPP Project in Central Java Province - Government Perspective Analisis Risiko Proyek KPBU SPAM Regional Wosusokas Provinsi Jawa Tengah - Perspektif Pemerintah Sutantiningrum, Kartika Hapsari Utami, Sri Rejeki Laku Teknik Sipil dan Lingkungan Risk Management, Public Private Partnership (PPP), Regional Water Supply System Teknik Sipil & Lingkungan Manajemen Risiko, Kerjasama Pemerintah Badan Usaha (KPBU), SPAM Regional During the dry season there was a scarcity of the availability of clean water in several Central Java province (Wonogiri, Sukoharjo, Karanganyar Disrict and Surakarta City), including Wosusokas Regional Region, so the government often drops clean water. So, the Government conducted the Wosusokas Regional Water Supply System Program. Public-Private Partnership (PPP) scheme is an option to overcome investment cost. This study aims to identify and analyze the risks of Wosusokas regional water supply system project eith government perspective. This research adopted a case study and literature analyze. Selected respondents from PDAB Tirta Utama, Dinas Bina Marga dan Cipta Karya Central Java, BPPW Central Java, District/ City Governments (Regional Water Supply Company, Bappeda and DPU) from Wonogiri, Sukoharjo, Karanganyar and Surakarta. The result found 35 risk factors that could potentially project failure or delay, the majority of these are considered high (11,43%), moderate (54,29%) and low (34,29). Risk factors with high probability are delay and increase cost of land acquisition, failure to complete the contract by the contractor / sub-contractor, failure initial tariff and delay periodic tariff adjustments. The results are useful for Government as a reference in managing the risks of PPP Spam Regional especially in Central Java. Pada saat musim kemarau terjadi kelangkaan ketersediaan air bersih di beberapa Provinsi Jawa Tengah, termasuk kawasan Wosusokas (Kab. Wonogiri, Sukoharjo, Karanganyar, dan Kota Surakarta) sehingga pemerintah sering melakukan pengiriman air bersih. Untuk mengatasinya, Pemerintah mengadakan program Sistem Penyediaan Air Minum (SPAM) Regional Wosusokas. Skema pendanaan Kerjasama Pemerintah dan Badan Usaha (KPBU) menjadi opsi untuk mengatasi biaya investasi yang besar. Penelitian ini bertujuan untuk mengidentifikasi dan menganalisis risiko proyek KPBU SPAM Regional Wosusokas dengan perspektif pemerintah. Metode yang digunakan yaitu metode analisis studi kasus dan studi literatur. Responden yang terpilih berasal dari PDAB Tirta Utama, Dinas Bina Marga dan Cipta Karya Prov. Jawa Tengah, BPPW Prov. Jawa Tengah, Pemkab/pemkot (Perumda Air Minum, Bappeda dan DPU) dari Kab. Wonogiri, Kab. Sukoharjo, Kab. Karanganyar dan Kota Surakarta. Dari hasil penelitian, didapatkan35 faktor risiko yang berpotensi menyebabkan kegagalan atau keterlambatan proyek, dengan mayoritas tergolong risiko high (11,43%), moderate (54,29%) dan low (34,29%). Faktor risiko dengan probabilitas tinggi yaitu keterlambatan dan kenaikan biaya pembebasan lahan, kegagalan penyelesaian kontrak pekerjaan oleh kontraktor/sub kontraktor, kegagalan penetapan tarif awal, dan keterlambatan penyesuaian tarif periodik. Hasil penelitian ini dapat dijadikan acuan pemerintah dalam mengelola risiko proyek KPBU SPAM Regional khususnya di Provinsi Jawa Tengah Universitas Diponegoro 2019-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26174 10.14710/presipitasi.v16i3.186-195 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 186-195 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 186-195 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26174/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/26174/4377 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/26174/4378 Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/67612 2025-12-13T04:17:17Z presipitasi:RVA

Microplastics Removal Strategies in Aquatic Environments Widiyanto, Edhi Istirokhatun, Titik Andarani, Pertiwi Susanto, Heru Desiriani, Ria Apriliana, Pamella Teknik Lingkungan Aquatics; environment; filtration; microplastics; removal Microplastics (MPs) have been globally detected in aquatic environments. The abundance of MPs contributed to the negative effects on aquatic ecosystems. Thus, it’s critical to create effective solutions for removing MPs from water. In this review, we compared several methods, including physical, physicochemical, and biological approaches, towards membrane filtration. The physical filtration technology is the simplest way in comparison with other methods. However, the removal ability of physical filtration against smaller MPs than 20 𝜇m becomes a crucial concern. Then, the other option is an adsorption method. Although the adsorption option is an inexpensive method, the undesirable aspect during adsorbent usage may not be environmentally friendly in aquatic systems. The similar problem is also demonstrated by chemical approaches in terms of coagulation and electrocoagulation treatment. Consequently, the biological methods were found to be less toxic to the environment. Even though it provides safe conditions to the environment, the biological approach needs a long time to degrade MPs. To overcome their disadvantages, the membrane technology offers efficient removal of MPs and no addition of chemical usage. However, the main point to pay attention to is that each technology has benefits and drawbacks. Therefore, the application of multiple technologies for MPs removal is considered.  Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67612 10.14710/presipitasi.v22i3.688-711 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 688-711 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 688-711 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67612/pdf_1 Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10979 2016-05-21T15:44:06Z presipitasi:RVA

POLA PENYEBARAN GAS NO 2 DI UDARA AMBIEN KAWASAN UTARA KOTA SEMARANG PADA MUSIM KEMARAU MENGGUNAKAN PROGRAM ISCST3 Hadiwododo, Mochtar Huboyo, Haryono Setiyo Environmental Engineering NO 2 gas, inventory emission, dispersion pattern North  district  of  Semarang  City  is  an  area  characterized  by  dense  population, congested transportation, and high  industry activities.  Urban activities in this area are predicted produce enourmous pollutant  one  of  them is  NO 2 .    This  gas  is  hazardous  for  human  health, and can cause death even that concentration exceed standard level 150 µgr/m3.  Inventory emission is used to identify sources that produce NO 2  gas and quatify the concentration.  ISCST3 program was used as a tool to recapitulate the dispersion  of NO 2  gas in ambient from it sources to the potent receptor. Combinated with  Surfer program, it result were easily be visualized trough NOx isopleth  contour  overlaid  to  land used  map.  The  result  of  this  observation  showed  that  total emission  of  NO 2   gas  in  area observation  is  0,001445  ton/year  where  is  transportation contributes 91,68 %, followed by industry 8,31 %, and domestic 0,01 %.  Dispersion pattern of NO 2   gas  in  ambient  is  mainly  affected  by calm  condition  of  wind  making  NO 2   gas  is concentrated in 3 regions i.e Pindrikan Kidul, Peterongan, and Tambakrejo. Universitas Diponegoro 2006-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10979 10.14710/presipitasi.v1i1.19-24 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 19-24 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 19-24 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10979/8670

oai:ojs.ejournal.undip.ac.id:article/60891 2025-05-18T20:36:13Z presipitasi:RSA

Characteristics of Wastewater Generated by the Snack Food (Cookies) Industry Habibi, Ahmad Sjaifuddin, Sjaifuddin Pancawati, Juwarin Ilmu Lingkungan; Teknik Lingkungan Key parameters; snack food industry; wastewater characteristics The snack food industry is one of the major industries in Indonesia that has various types of products, one of which is snacks (cookies), which are widely consumed as snacks. This study aims to determine the characteristics of wastewater from the snack food industry (cookies). The research was conducted in three factories located in Bandung Regency, Sumedang Regency and Majalengka Regency. Primary data were collected from wastewater samples collected monthly for laboratory testing. Data analysis used descriptive statistical analysis of average concentration of wastewater parameters using Microsoft Excel software and SPSS 25 software. The main parameters of wastewater from the snack food industry (cookies) are pH, TSS, BOD, COD, ammonia, total nitrogen, and MBAS. From the comparison of the resulting BOD, COD, TSS, ammonia, and total nitrogen pollutant loads, the largest load trends occur in Factory B, Factory C, and Factory A. Failure to properly treat these crucial wastewater parameters can pose risks to the environment and surrounding communities. Thus, these vital parameters form the basis for selecting wastewater treatment plant technology to fulfil environmental standards. WWTP process recommendations that can be used are grease trap, surge tank, dissolved air flotation (DAF), anaerobic system, aerobic system, secondary clarifier, and post-treatment.  Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/60891 10.14710/presipitasi.v21i1.112-131 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 112-131 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 112-131 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/60891/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/30977 2020-12-16T21:32:42Z presipitasi:RSA

Evaluasi Pengelolaan Embung di Kabupaten Sleman, Daerah Istimewa Yogyakarta Evaluation of Artificial Reservoir Management in Sleman Regency, Yogyakarta Special Region Wilopo, Wahyu Setiawan, Hendy Eka Putra, Doni Prakasa Teknik Lingkungan; ilmu lingkungan; pertanian embung; masyarakat; pengelolaan; sleman Environmental Engineering; environmental science; agriculture reservoir; management; community; sleman Pemerintah Indonesia telah menggalakkan program pembangunan embung di seluruh Indonesia. Program ini bertujuan utama untuk mendukung irigasi pertanian khususnya pada musim kemarau. Pada implementasi pembangunan embung sering sekali dijumpai banyak kendala yang ditemukan sehingga tujuan utama dari program ini belum bisa tercapai secara maksimal. Penelitian ini bertujuan untuk mengevaluasi kondisi embung yang berada di Kabupaten Sleman, Daerah Istimewa Yogyakarta baik dari sisi kondisi fisik, kelembagaan maupun kendala di dalam pengelolaan. Penelitian dilakukan melalui survei langsung terhadap 9 embung dan wawancara baik kepada pengelola maupun warga sekitar embung. Hasil penelitian menunjukkan bahwa dua embung  mengalami kerusakan bangunan,  tiga embung belum memiliki pengelola, dan tiga embung belum berfungsi sesuai dengan tujuan pembangunan embung. Kendala yang sering dijumpai di dalam pengelolaan embung adalah belum adanya struktur pengelola embung yang jelas dan pengelola yang sudah ada belum berjalan efektif sehingga menyebabkan belum tersedianya aturan yang jelas dalam pemanfaatan air embung. Organisasi pengelola embung harus melibatkan masyarakat maupun pemerintah desa dimana embung tersebut berada dan juga masyarakat penerima manfaat irigasi pertanian untuk menjamin fungsi dan keberlanjutannya The Indonesian government has promoted reservoir (embung) development programs throughout Indonesia. This program is primarily designed at supporting agricultural irrigation, especially in the dry season. However, in its implementation, there are often many obstacles both in technical and management, causing the main purpose of the reservoir construction cannot be achieved optimally. Therefore, this study aims to evaluate the condition of the reservoir located in Sleman Regency, Yogyakarta Special Region, in terms of physical, institutional, and management constraints. The study was conducted through a direct survey of 9 reservoirs and interviews with managers and residents around the reservoir. The results showed that two reservoirs have small damage in the reservoir building, three reservoirs do not yet have managers, and three reservoirs have not functioned following the purpose of reservoirs development. The obstacle often found in managing reservoirs is the unclear structure for the management of the reservoir, and the existing management is not effectively working. Therefore, the regulation of using reservoir water is not available. It is necessary to have a management organization involving the community and village government where the reservoir is located and also community beneficiaries of agricultural irrigation to guarantee its function and sustainability. Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/30977 10.14710/presipitasi.v17i3.205-214 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 205-214 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 205-214 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/30977/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/75078 2026-04-21T07:44:25Z presipitasi:RSA

Effect of Macroporous Chitosan-Tripolyphosphate Beads on COD and Turbidity Values in Sasirangan Wastewater Ariyani, Dahlena Maulana, Riana Irawati, Utami Mujiyanti, Dwi Rasy Umaningrum, Dewi Teknik Lingkungan; ilmu Lingkungan Chemical oxygen demand (COD); hitosan-tripolyphosphate (TPP) beads, sasirangan wastewater; turbidity A batch system was applied to study the effect of using macroporous cross-linked chitosan–tripolyphosphate (TPP) beads on chemical oxygen demand (COD) values and turbidity in Sasirangan wastewater. The ionic cross-linking reagent, sodium tripolyphosphate, was used to obtain more rigid chitosan beads, and sodium bicarbonate was added as a porogen. COD values were analyzed using the titrimetric method, and turbidity values were analyzed using the turbidimetric method. This analysis was used to study the effect of dose and pH on the performance of beads in Sasirangan wastewater. Scanning electron microscopy (SEM) characterization of the beads showed that NaHCO₃ as a porogen enlarged the pores in the chitosan–TPP beads, and Fourier-transform infrared (FTIR) characterization showed interactions among chitosan, chitosan–TPP beads, and wastewater. The results showed that higher chitosan dosages resulted in increased final COD values in Sasirangan wastewater, and the higher the pH, the higher the COD value. The addition of beads reduced the turbidity value of the Sasirangan wastewater, with higher doses leading to greater turbidity reduction, with the optimum achieved at 400 mL/L. The pH conditions did not affect the reduction in the turbidity value, with less than 1% variation observed. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/75078 10.14710/presipitasi.v23i1.38-50 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 38-50 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 38-50 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/75078/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/56495 2023-08-18T02:24:32Z presipitasi:RSA

Sustainable Waste Management Breakthrough: Transforming Plastic Waste into Eco-Friendly Briquette Charcoal Agustine, Dine Amyranti, Mutia Komalasari, Nia Rumiris Hutagalung, Ira Kurniasari, Ratih Briquettes plastic charcoal, Management waste solid, Participation society, Waste Bank Plastic waste has emerged as an important environmental concern. Among the various types of plastic waste, such as Polyethylene Terephthalate (PET) and Polypropylene (PP), these two contribute the most to the overall plastic waste problem need to be efficiently managed. The purpose of this research is to study the manufacture of briquettes from PET and PP plastic waste with the help of starch adhesive. This research is expected to reduce the negative impact of plastic waste. In this study, the data to be obtained were the calorific value of the briquettes, ash content, moisture content, volatile content and bound carbon content. The results show that the best raw material combination in terms of the calorific value of the resulting charcoal briquettes is the raw material mixture with the addition of PET. The results of the PET type plastic briquettes were superior with the results of the calorific value test of 10.129 cal/gram, the proximate test results of 3.11% ash content, 4.98% moisture content, 65.31% volatile matter content, and 78% bound carbon content 79%. While the PP type plastic briquettes obtained a calorific value test result of 9,949 cal/gram, the calorific value was lower than the PET type plastic briquettes. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56495 10.14710/presipitasi.v20i2.452-460 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 452-460 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 452-460 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56495/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/48735 2023-01-04T02:30:50Z presipitasi:RCS

Study of Estimation Methane Emissions from Municipal Solid Waste Landfill Based on IPCC Model (Case Study: Klotok Landfill, Kediri) Ayu Murti, Restu Hikmah Salam Jawwad, Muhammad Abdus Nisa, Syadzadhiya Q. Z. Ni’am, Achmad C. Teknik Lingkungan; ilmu Lingkungan; Rekayasa Ilmu Lingkungan; Teknik Penyehatan Klotok landfill; populations; waste generations; IPCC model; methane emission Sanitary landfill is the most common type of waste processing in Indonesia because it can minimize the negative impacts caused by waste and can utilize methane gas produced from the waste decomposition process. An analysis of the population projections of Kediri and waste generation was carried out to determine the waste generation at the Klotok Landfill. This study predicts methane gas emissions produced at the Klotok Landfill based on the IPCC method. This study uses two types of data: secondary and primary data. Secondary data includes the number of residents and waste entering the landfill, while the primary data used is waste composition. A sanitary landfill is needed in order to minimize the negative impact of solid waste, one of the negative impacts caused by solid waste is the formation of methane gas.  This study uses the IPCC (Intergovernmental Panel Climate Change) model to calculate methane generation in the next ten years. The results show that population significantly impacts CH4 emissions from solid waste disposal facilities. Due to the city's growing urbanization and population increase, the production of waste in Kediri is increasing. Total waste production in 2032 is 723.98 m3/day or 217,195.44 Kg/day. In contrast, the total percentage of waste that goes to the Landfill is around 55%, so the waste that goes to the landfill is around 398.19 m3/day or 119.457.49 kg/day. In addition, the increase in the amount of solid waste at the Klotok landfill also produces methane gas. Based on the amount of waste that goes to the landfill, the projected methane gas formation from the IPCC model in 2032 can reach 6.148 Mg in a day. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48735 10.14710/presipitasi.v19i3.626-637 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 626-637 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 626-637 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48735/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/48735/11686 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11102 2020-04-17T11:32:27Z presipitasi:RVA

ANALISIS HUBUNGAN KEBISINGAN MESIN DENGAN STRES KERJA (Studi Kasus : Mesin TWO FOR ONE TWISTER (TFO) PT. XYZ) Budiawan, Wiwik Ulfa, Ema Amalia Andarani, Pertiwi Environmental Engineering Noise, Work Stress, Spearman Correlation Test, Fault Tree Analysis The Two for One Twister (TFO) machine emits very disturbing noise and the noise exposes the workers while performing their tasks. The noise also lead to works stress. So, it is necessary to determine the relationship between the noise and work stress of TFO machine operators. This study  was  conducted  by measuring  the  noise  of  TFO  engine  with  Enviro-meter  and then correlating the noise and work stress with SPSS 16 software. Spearman correlation test results showed that a strong correlation between noise with work stress (p value = 0.042). In order to reduce the noise level that will decrease stress for workers, Fault Tree Analysis was conducted to determine the source of the noise. Based on the qualitative analysis of FTA, the causes of the noise were as follows: the lubricating oil was not applied, seal of oil valve leaked, bearing was not replaced (2 years economic life), the traveler was not replaced (10 days economic life), and the Doubling machine was troubled. Based on the quantitative analysis of the probability of job stress of TFO machine operator due to noise TFO machines from a known probability of 0.041, hence, the system was feasible for use. Universitas Diponegoro 2016-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11102 10.14710/presipitasi.v13i1.1-7 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 1 (2016): Maret 2016; 1-7 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 1 (2016): Maret 2016; 1-7 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11102/8726

oai:ojs.ejournal.undip.ac.id:article/59281 2025-05-18T20:37:10Z presipitasi:RCS

Determination of Critical Indicators for Community-Based TPS 3R Performance Saleh, Siti Ainun Sururi, Mohamad Rangga Teknik Lingkungan, Solid Waste Management Performance; TPS 3R; participation; sorting; finance; complete processing The Ministry of Public Works and Public Housing (Kementerian Pekerjaan Umum & Perumahan Rakyat – PUPR) has developed a guideline for assessing the performance of Waste Processing Sites in terms of Reduce, Reuse, and Recycle (Tempat Pengelolaan Sampah Reuse, Reduce, dan Recycle - TPS 3R) across five waste management aspects: regulations, technical technology, management institutions, finance, and community participation. The guideline includes parameters and indicators, but their definitions are not clearly specified, leading to various interpretations. This study aimed to identify the key indicators for measuring the performance of TPS 3R. The study involved defining and determining sub-indicators for each aspect using the constructive alignment concept to ensure clarity in measurement. These sub-indicators were consolidated into a set of questions for use in field data collection. The developed guidelines were applied to evaluate TPS 3R performance in West Java, using a comparative study and descriptive analysis for the evaluation. The study identified the critical indicators for each aspect as follows: (i) waste segregation for community participation, (ii) complete waste processing (sorting, organic waste processing, and inorganic waste handling) for technical aspects, and (iii) active management (waste and financial records) for management institutional aspects. These critical indicators not only influence the financial aspect but also provide economic support for the sustainability of TPS 3R. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59281 10.14710/presipitasi.v21i2.622-637 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 622-637 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 622-637 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59281/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/37144 2022-02-16T03:29:41Z presipitasi:RSA

The Effect of Household Waste Reduction on the Lifespan of Parit Enam Landfill in Pangkalpinang City: Using Dynamic System Modeling Fitriansyah, Hadi Maryono, Maryono Teknik Lingkungan Model Sistem Dinamik; Pangkalpinang; Pengelolaan Sampah; Reduksi Sampah; Sampah Rumah Tangga Currently, there are still problems occurring in waste management activities in Pangkalpinang City. Solid waste that is scattered in the City of Pangkalpinang is caused by waste that has not been transported and handled. TPA Parit Enam's capacity, which serves solid waste in Pangkalpinang City, will decrease every year due to an overload of incoming waste generation. Currently, the City of Pangkalpinang aggressively implements a waste management policy at the source or the 3R program, including waste bank activities and waste processing at reduce, reuse and recycle (3R) landfills. The purpose of this study was to determine the effect of household waste reduction activities on the current use of the Parit Enam landfill in Pangkalpinang City in each of the scenarios that were compiled. The compilation model uses Powersim Studio 2005. The dynamic analysis shows that the activities that follow the waste at the source and respect what happens in TPS 3R Pangkalpinang City can affect TPA Parit Enam's useful life and produce a suitable scenario to be applied in the waste management activities of Pangkalpinang City. Scenario C (Optimistic), the valuable life of Parit Enam Landfillreaches 2023, and scenario C (Optimistic) can reduce the amount of waste transported by 29.65% compared to scenario A (Business as Usual). Besides, the proportion of household waste reduction reached 48% at the end of the simulation year. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/37144 10.14710/presipitasi.v18i1.161-170 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 161-170 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 161-170 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/37144/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4927 2013-05-14T23:32:24Z presipitasi:RVA

PEMANFAATAN LUMPUR AKTIF DAN EM4 SEBAGAI AKTIVATOR DALAM PROSES PENGOMPOSAN LIMBAH KULIT BAWANG DENGAN SLUDGE Samudro, Ganjar Syafrudin, Syafrudin Sujiwo, Bagus Environmental Engineering, Environment sludge, kulit bawang, lumpur aktif, EM4, pengomposan secara aerobik Pengolahan air limbah PT. Indofood CBP menghasilkan sludge yang belum terolah dengan baik. PT. Indofood membutuhkan suatu teknik pengolahan sludge sebagai wujud komitmennya terhadap lingkungan. Tujuan penelitian ini adalah untuk mengetahui kondisi optimum pengomposan aerobik sludge dan kulit bawang. Kulit bawang yang digunakan adalah, yaitu kulit bawang dari divisi pengupasan bawang PT. Indofood CBP. Pada penelitian ini dilakukan analisis terhadap kandungan C-Organik, N-Total, P-Total, K-Total, C/N rasio, dan kadar air pada kompos tiap lima hari sekali. Hasil penelitian didapatkan C/N rasio aktivator EM4 adalah variasi A1 (2,5 kg sludge + 2,5 kg kulit bawang) sebesar  19,74%, B1 (3,3 kg sludge + 1,7 kg kulit bawang) sebesar 18,61% dan C1 (4,2 kg sludge + 0,8 kg kulit bawang) sebesar 14, 17%. Sedangkan C/N rasio aktivator lumpur aktif adalah variasi A2 (2,5 kg sludge + 2,5 kg kulit bawang) sebesar 19,81%, B2 (3,3 kg sludge + 1,7 kg kulit bawang) sebesar 19,00%, dan C2 (4,2 kg sludge + 0,8 kg kulit bawang) sebesar 14, 76%. Hal ini menunjukkan bahwa semakin banyak penambahan lumpur, semakin baik C/N rasio kompos. Universitas Diponegoro 2012-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4927 10.14710/presipitasi.v9i2.51-63 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 2 (2012): Vol 9, No 2 (2012); 51-63 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 2 (2012): Vol 9, No 2 (2012); 51-63 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4927/4464

oai:ojs.ejournal.undip.ac.id:article/55803 2023-08-18T02:24:32Z presipitasi:RCS

Water Resources Assessment for Raw Water Purposes in Serang Watershed, Kulonprogro Sarminingsih, Anik Teknik Lingkungan, Pengelolaan Sumber Daya Air Raw water; rain-runoff; reliable discharge; flow duration curve; water quality One source of raw water for drinking water is river water. The raw water source for drinking water must meet the requirements for quantity, continuity, and quality. Raw water for drinking water must meet class I water quality requirements. This study aims to assess of the potential for water availability and water quality in the Serang River. Analysis of water availability used statistical methods and simulated rainfall-runoff with the HEC-HMS model. Calibration of the hydrological model was carried out in sub-watersheds where there were observational discharge data. Water availability is reviewed in the second-order river. Water quality status was analyzed using the Pollutant Index and Storet methods. The results of the analysis of water availability for reliable discharge with a probability of 80%, 90%, and 95% in several sections of the Serang River to order 2 rivers can be presented in the form of a flow duration curve. The results of the analysis of the status of water quality in several sections of the upstream Serang river based on the Storet method and the Polluter Index method show that in general, it is in a slightly polluted condition. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55803 10.14710/presipitasi.v20i2.238-246 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 238-246 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 238-246 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55803/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/17998 2020-06-14T09:21:53Z presipitasi:RSA

Pengaruh Pendampingan Masyarakat dalam Pemilahan Sampah di Desa Pucung Kecamatan Tirto Kabupaten Pekalongan Samadikun, Budi Prasetyo Potential problems in household waste management are still found, especially in residential areas. Pucung Village, Tirto District Pekalongan Regency with a population of 3.347 people, is one example of a village that has not implemented waste management properly. The availability of inadequate trash can be one of the factors that causes the waste has not been well managed in this village. This community assistance activity aims to educate and encourage the community to be self-sufficient in waste management, especially in waste sorting. According to the recommendations of Pucung Village Government, this community assistance activity is centered in RT 04 RW 01 area as an embryo or pilot project to be implemented in all Pucung Village area. The methods used are survey, socialization, simulation, and post-socialization follow-up. The residents are quite enthusiastic and appreciative towards this activity, shown by the attendance rate of more than 60% during socialization and conducive discussion. The results of post-socialization evaluation indicate that people have started to realize in managing waste, indicated by the separated garbage in a different trash can at their residenceKeywords: accompaniment, sorting, waste, Pucung Universitas Diponegoro 2018-03-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/17998 10.14710/jis.%v.%i.%Y.483-492 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 46-52 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 46-52 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/17998/pdf Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/67613 2025-12-04T00:06:38Z presipitasi:RVA

An Overview of the Utilization of PET Plastic Bottle Waste for Membrane Fabrication Istirokhatun, Titik Siahaan, Samuel Ezra Gonzales, Ralph Rolly Andarani, Pertiwi Susanto, Heru Filardli, Abdullah Malik Islam Teknik Lingkungan PET, plastic, waste, bottles, recycling Plastic use, in this case including plastic drinking water bottles particularly polyethylene terephthalate (PET) has resulted in significant environmental, social, economic, and health repercussions. It will ultimately be deposited in landfills, requiring up to 1,000 years for each individual bottle to degrade. This review begins by briefly introducing the composition and characteristics of PET. It then details the methods for converting waste PET into valuable materials for diverse applications. The review emphasizes advanced uses of these materials in water treatment, highlighting the development of robust, organic solvent-resistant membranes. The primary aim of this review is to evaluate recent studies of PET bottle recycling to membrane technologies, membrane fabrication from PET waste, applications of PET-based membranes, advantages and challenges of using PET waste for membrane fabrication. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67613 10.14710/presipitasi.v22i1.15-37 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 15-37 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 15-37 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67613/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42430 2022-02-19T00:21:43Z presipitasi:RCS

The Role of BUMDes in Preserving the Environment in Pematang Lingkung Village, Batang Merangin District, Kerinci Regency, Jambi Province Puspita, Arneli Alamsyah, Zulkifli Zamzami, Zamzami Teknik Lingkungan BUMDes; community behavior; conservation; qualitative analysis Environmental conservation determines the life of humans and other living things, but on the other hand, humans can also select the state of their environment. With the lack of public knowledge about preserving the environment, people unwittingly pollute the environment by littering on empty land that is not used. There is a buildup of waste that pollutes the air, water, and soil. The Pematang Lingkung Village Government takes steps through the BUMDes Program to prevent environmental pollution by utilizing vacant land that is not used as a tourist spot in the form of the Melik Sisik Park as an effort to preserve the environment. This study aimed to determine the condition of BUMDes and the role of BUMDes in environmental conservation. This type of research uses a quantitative approach with 80 respondents. Sampling technique with a questionnaire instrument was employed. Descriptive data analysis and Chi-Square test was conducted to analyze the results. A qualitative approach is used to understand the development and dynamics of BUMDes in the context of rural economic development, especially in rural community business processes. The industry's environmental management and monitoring implementation had not raised awareness of environmental conservation; community involvement and concern in ecological management and monitoring are still low. The results showed a relationship between the role of BUMDes and environmental conservation in Pematang Lingkung Village. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42430 10.14710/presipitasi.v18i3.486-493 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 486-493 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 486-493 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42430/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10948 2016-05-03T20:25:56Z presipitasi:RVA

EFEKTIFITAS PENURUNAN Fe 2+ DENGAN UNIT SARINGAN PASIR CEPAT MEDIA PASIR AKTIF Oktiawan, Wiharyanto Krisbiantoro, Krisbiantoro Environmental Engineering The process that happened in decreasing Fe2+ with a rapid sand filter are mechanical straining, sedimentation, adsorbs and an activities of chemical in the water it self. This research uses 2 stages in testing; they are the batch filter and the column filter. On each of the stages we try using activated sand media. This media is known to able to decrease the Fe2+. The water spring is from the 2nd deep well at the Prambanan water treatment facility. The goal from this research is to find the criteria design on surface loading and to find out the effectiveness in reducing Fe2+ that is in the water by using the media of activated sand. From this experiment we found that the maximal filtration speed on activated sand is 12, 85 m/jam. Calculation analysis shows that the removal  coefficient  of  Fe2+  in  the  batch activated  sand  filter  is  λ 1   =  0,92  ±  0,16  m-1  with  the average on reducing Fe2+ 42,27%. Universitas Diponegoro 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10948 10.14710/presipitasi.v2i1.56-59 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 56-59 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 56-59 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10948/8639

oai:ojs.ejournal.undip.ac.id:article/59906 2024-06-14T22:00:52Z presipitasi:RCS

Water Quality Measurements with TSS, TDS, Total Phosphate, Nitrate, Total Coliform Parameters in the Garang Water Shed Syafrudin, Syafrudin Sarminingsih, Anik Juliani, Henny Arief Budihardjo, Mochamad Sila Puspita, Annisa Ya’azzan Nabila, Ikviy TSS; TDS; total phosphate; nitrate; watershed Massive industrial and urban development can cause changes in the quality of river water, one of which is the Garang Watershed, located in Central Java Province. This river is situated in Kendal Regency (upper and middle) and Semarang City (middle and lower). This research examined the Garang River's water quality conditions, divided into four sub-basins: Garang Hilir, Garang Hulu, Kreo and Kripik. The parameter assessed in this research is TSS, TDS, Total Phosphate, Nitrate, and Total Coliform Parameters with a total of ten sampling location points were determined based on several criteria using GPS and the SNI 6989.57:2008 sampling method. TSS and TDS concentrations in March-April were observed to be high, especially at sampling point 10. In contrast, total phosphate concentrations were elevated at sampling points 2, 3, and 9; Nitrate values were observed to be high at sampling point 3 in March and sampling point 5 in April; Total coliforms were high at sampling points 1, 3, and 4, all of these is possibly due to domestic waste and the use of fertilizer by agricultural activities. This sampling quality assessment shows a close relationship between human activities and agricultural activities in river water quality, especially in the Garang River. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59906 10.14710/presipitasi.v20i3.776-790 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 776-790 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 776-790 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59906/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/23606 2020-08-30T23:23:58Z presipitasi:RSA

Evapotranspiration of Indonesia Tropical Area Evapotranspiration of Indonesia Tropical Area Marganingrum, Dyah Santoso, Heru Lingkungan equatorial, monsoonal, mainland, precipitation, a small island, Thornthwaite Lingkungan equatorial, monsoonal, mainland, precipitation, a small island, Thornthwaite Indonesia is an archipelago country with a tropical climate. The region of Indonesia is quite large and located between two continents (Asia and Australia) and between two oceans (Indian and Pacific), making the territory of Indonesia has a unique climate pattern. One of the climate variables that quite important to be studied in this chapter is evapotranspiration. The Thornthwaite method was used to estimate potential evapotranspiration based on average air temperature. The relationships between evapotranspiration, precipitation, and elevation were then examined. Besides, temperature variations that affect climate patterns between monsoonal and equatorial regions were compared, between the mainland and small islands, and between mountain and coastal area. The impact of global warming was also examined on the climate and potential evapotranspiration of the Indonesian region. Data analysis showed that evapotranspiration correlates weakly with precipitation, and the contrary, the evapotranspiration correlates strongly with elevation, with correlation indices of 0.02 and 0.89, respectively. The study confirmed that air temperature is the primary controlling variable of the evapotranspiration in this very heterogeneous landscape. Under a global temperature increase of 1.5 °C above the pre-industrialized year (1765), the evapotranspiration is expected to increase in a range from 4.8 to 11.1%. In general, the excess of water to restore soil moisture in the future tends to decrease, i.e., drier. Indonesia is an archipelago country with a tropical climate. The region of Indonesia is quite large and located between two continents (Asia and Australia) and between two oceans (Indian and Pacific), making the territory of Indonesia has a unique climate pattern. One of the climate variables that quite important to be studied in this chapter is evapotranspiration. The Thornthwaite method was used to estimate potential evapotranspiration based on average air temperature. The relationships between evapotranspiration, precipitation, and elevation were then examined. Besides, temperature variations that affect climate patterns between monsoonal and equatorial regions were compared, between the mainland and small islands, and between mountain and coastal area. The impact of global warming was also examined on the climate and potential evapotranspiration of the Indonesian region. Data analysis showed that evapotranspiration correlates weakly with precipitation, and the contrary, the evapotranspiration correlates strongly with elevation, with correlation indices of 0.02 and 0.89, respectively. The study confirmed that air temperature is the primary controlling variable of the evapotranspiration in this very heterogeneous landscape. Under a global temperature increase of 1.5 °C above the pre-industrialized year (1765), the evapotranspiration is expected to increase in a range from 4.8 to 11.1%. In general, the excess of water to restore soil moisture in the future tends to decrease, i.e., drier. Universitas Diponegoro 2019-11-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/23606 10.14710/presipitasi.v16i3.106-116 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 106-116 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 106-116 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/23606/16016 Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/69564 2025-12-04T00:06:42Z presipitasi:RSA

The Potential of Spent Bleaching Earth In Charcoal Briquettes as Energy Source Tarigan, Enda Rasilta Mirnandaulia, Meutia Mustakim, Mustakim Sitinjak, Anna Angela Purba, Darry Christine Silowaty Karo-Karo, Justaman Arifin Silalahi, Meriahni Fitri, Li Idi'il Anwar, Dedy Teknik Lingkungan Charcoal briquettes; spent bleaching earth; peat moss; rice husks; alternative energy Eco-friendly alternative fuels encourage the use of waste biomass as a material for making briquettes. This study aimed to develop briquettes from rice husk biomass and peat moss and add spent leaching earth (SBE). SBE is a hazardous and toxic waste increasingly piling up in landfills. The research method involved carbonizing rice husks and peat moss, mixing them with SBE, molding with a 200 kg/cm2 Hydraulic Press, and drying. The resulting briquettes had an average water content of 5.86% and an ash content of 2.18%, which meet the SNI No. 01/6235/2000 standard. Morphological analysis revealed that the briquettes were round but exhibited non-homogeneous aggregation. The highest calorific value was found in C4 briquettes of 5030.17 cal/gr. The composition of C4 was 40% rice husk charcoal (4.8 g), 45% peat (5.4 g), and 15% SBE (1.8 g), with SBE dried for seven days. The addition of peat increased the calorific value of the briquettes. Based on scanning electron microscopy (SEM)/ energy-dispersive X-ray (EDX) analysis, the carbon content in the C4 briquettes reached 72.2%. This study shows that the combination of rice husk charcoal, SBE, and peat provides a renewable energy source and contributes to the reduction of environmental waste, thereby promoting sustainability.  Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69564 10.14710/presipitasi.v22i2.380-392 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 380-392 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 380-392 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69564/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/69564/18709 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/69564/18710 Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46609 2023-03-29T21:11:54Z presipitasi:RCS

Improving Recycled Waste Management Performance in Ngaliyan District, Semarang City Fitriandani, Prihanita Ratih Hadiwidodo, Mochtar Huboyo, Haryono Setiyo Teknik Lingkungan Jatibarang landfills; composting; recycling The waste that enters the Jatibarang landfills does not go through the management and processing process in advance, and the people's laziness in sorting waste has resulted in an increase in waste at the Jatibarang landfills. Ngaliyan reduce, reuse, recycle (3R) waste management site is currently inactive due to a lack of implementation in aspects of waste management. Therefore, it is necessary to plan waste management as an effort to overcome urban waste by increasing performance at reduce, reuse, recycle (3R) waste management sites. Data collection methods used are sampling, interviews, and questionnaires. In this technical, operational planning of waste management, an area of reduce, reuse, recycle (3R) waste management site is required of 661 m2. Organic waste is processed through composting using the Open Windrow method, and inorganic waste is managed using the MRF (material recovery facility) method. The total cost required is IDR 11,135,856,300.00. The community is expected to be able to participate in waste processing and management through 3R-based sorting, comply with applicable regulations, and pay a retribution every month. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46609 10.14710/presipitasi.v19i2.231-238 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 231-238 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 231-238 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46609/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/28585 2020-12-16T21:04:21Z presipitasi:RSA

Analysis of Environmental Capacity (Water Pollution Load) in the Porong Area, Sidoarjo Regency, ex Lapindo Mining Analisis Daya Tampung Lingkungan (Beban Pencemaran Air) di Kawasan Porong Kabupaten Sidoarjo ex Penambangan Lapindo Auvaria, Shinfi Wazna Munfarida, Ida Environmental Engineering load carrying capacity; pollution load; The Sidoarjo mudflow Teknik Lingkungan beban pencemaran; daya tampung; lumpur Sidoarjo;lingkungan The Sidoarjo mudflow occurred in 2006 near the housing area that could cause physical and material environmental damage. Besides, secondary effects caused by it will increase the environmental capacity. If an area has detected exceeds the capacity of the environment it will impact permanent environmental damage. This study's objective was to evaluate the environmental capacity of the Porong District (Sidoarjo) as a result of Sidoarjo mud eruption ex. Lapindo Mining through the water pollution load-carrying capacity approach. Based on the research, it was found that in general, the parameters had exceeded the Class II quality standard according to PP No.82/2001, that are total dissolved solids (TDS) dan chemical oxygen demand (COD) (station 4), biological oxygen demand (BOD), chloride, and ammonia (all stations), Fe and nitrite (station 1), phosphate (station1, 3-4) and manganese (station 2). The parameters of TDS, BOD, COD (station 4), chloride, nitrite (station 1), ammonia, phosphate (station 1 and 3), and manganese (station 2) are known to have exceeded the environmental capacity. The recommendations include wastewater management, reducing pollutants into rivers, and implementing biotechnology to minimize water pollution. Semburan lumpur Sidoarjo yang terjadi pada tahun 2006 di dekat area perumahan menyebabkan kerusakan lingkungan sekitar, baik secara fisik maupun material. Selain itu, dampak sekunder yang diakibatkan oleh adanya lumpur Sidoarjo dapat menambah beban lingkungan. Apabila dalam suatu wilayah terdeteksi melebihi daya tampung lingkungan dan ambang batas yang dapat dipulihkan maka akan berakibat pada kerusakan lingkungan permanen. Tujuan penelitian ini adalah mengevaluasi daya tampung lingkungan kawasan Kecamatan Porong Kabupaten Sidoarjo sebagai akibat dari letusan lumpur Sidoarjo ex. penambangan Lapindo melalui pendekatan daya tampung beban pencemaran air. Berdasarkan penelitian, didapatkan hasil bahwa pada umumnya parameter telah melebihi batas baku mutu kelas II sesuai PP No.82/2001 yaitu parameter total dissolved solids (TDS) dan chemical oxygen demand (COD) di titik 4, biological oxygen demand (BOD), klorida dan ammonia di semua titik, besi dan nitrit di titik 1, fosfat di titik 1,3-4 dan mangan di titik 2. Parameter TDS, BOD, COD di titik 4, Klorida, Nitrit di titik 1, amonia, fosfat di titik 1 dan 3, dan Mangan di titik 2 diketahui telah melebihi daya tampung lingkungan. Rekomendasi yang diberikan untuk meningkatkan kualitas sungai diantaranya pengelolaan air limbah, mengurangi pelepasan polutan ke sungai, dan menerapkan bioteknologi untuk mengurangi polusi air sungai. Universitas Diponegoro UIN Sunan Ampel Surabaya LPPM UIN Sunan Ampel Surabaya 2020-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/28585 10.14710/presipitasi.v17i2.104-112 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 104-112 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 104-112 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/28585/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/73055 2025-12-13T04:17:17Z presipitasi:RCS

Quick Assessment of Landslide Potential Using Satellite Imagery in Bili-Bili Reservoir Catchment Area Wahyuningrum, Catur Ayu Wulandari, Dyah Ari Suripin, Suripin Pratama, Alfyan Amar Sari, Yunitta Chandra Baihaqi, Fajar Andi Teknik Sipil; Pengelolaan Sumber Daya Air; Rekayasa Ilmu Lingkungan; Potensi Longsor Bili-Bili reservoir catchment area; DInSAR; landslide potential; mitigation Landslides are among the most unpredictable and destructive sediment-related disasters, especially in mountainous regions with complex terrain and limited field accessibility. In 2004, a catastrophic landslide from the Mount Bawakaraeng Caldera delivered more than 100 million cubic meters (MCM) of sediment into the Bili-Bili Reservoir, filling its dead storage and threatening its long-term functionality. his study uses Sentinel-1A satellite imagery and Differential Interferometric Synthetic Aperture Radar (DInSAR) to perform a rapid, spatially driven assessment of landslide hazards in the Bili-Bili Reservoir Catchment Area. The results reveal surface deformation of up to ±1.55 meters, concentrated in upstream zones. High-risk areas span 71.00 km², with an estimated mobilizable volume of 110.04 MCM and a potential sediment yield of 27.14 MCM per year, nearly equal to the reservoir’s dead storage. To mitigate this threat, the study proposes an integrated mitigation framework. Structural interventions include rehabilitating existing sediment control systems and constructing new sabo dams. Non-structural strategies such as slope revegetation and bioengineering are also recommended. This study demonstrates how remote sensing can identify subtle ground deformation and provides actionable insights for safeguarding critical water infrastructure in sediment-prone tropical watersheds. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/73055 10.14710/presipitasi.v22i3.893-908 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 893-908 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 893-908 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/73055/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/47043 2023-01-04T02:30:50Z presipitasi:RVA

Biodiversity, Roles, and Potency of Bacteria in Agricultural Land Purbalisa, Wahyu Hendrayanti, Dian Yusuf, Wahida Annisa biologi, lingkungan, pertanian Biodiversity; bacteria; agricultural land Biotic and abiotic factors influence biodiversity. Environment and human activities change biodiversity. Human activities to get their food through agricultural activities affect the diversity of bacteria in agricultural lands. Cultivation techniques, plant species, plant growth stadia, and soil influence the diversities of bacteria in agricultural land. The dominant bacteria on agricultural land are from the phyla Proteobacteria, Actinobacteria, Acidobacteria, Bacteroidetes, and Firmicutes. Proteobacteria play a role in the nitrogen, carbon, and sulphur cycles, Actinobacteria in the carbon cycle, and Acidobacteria in the nitrogen cycle. Bacteroidetes work as decomposers of organic matter. Firmicutes are required for biocontrol and plant growth. The high use of pesticides in agricultural land has decreased the diversity of bacteria. Indigenous bacteria that survive in the condition of high pesticide residue contamination have the potential as remediation agents for pesticide residues. Indigenous bacteria can degrade pesticide residues through oxidation-reduction and complexation reactions, thereby reducing the level of pesticide contamination. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47043 10.14710/presipitasi.v19i3.520-531 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 520-531 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 520-531 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47043/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11011 2016-05-05T01:28:38Z presipitasi:RVA

PENYISIHAN NIKEL MENGGUNAKAN MEDIA ZEOLIT (STUDI KASUS LIMBAH INDSUTRI KECIL PELAPISAN LOGAM KECAMATAN JUWANA PATI) Syafrudin, Syafrudin Environmental Engineering Ion Exchange, zeolit, nickel, Reynold number, Sherwood number . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11011 10.14710/presipitasi.v5i2.49-54 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 49-54 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 49-54 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11011/8695

oai:ojs.ejournal.undip.ac.id:article/59501 2025-05-18T20:37:10Z presipitasi:RCS

Spirulina Platensis as Biocoagulant to Reduce Turbidity and Total Suspended Solids in Domestic Wastewater Nur Afifah, Fathiya Rachmalia, Fayza Nur Ananda Rizky, Frista Khairunnisa, Hasna Ulhaq Filardhiani, Nida Kusumaningrum, Lia Biocoagulants; dosage; extraction; potency; Spirulina platensis. It is essential to treat wastewater before it is discharged into water bodies. The wastewater treatment method that is widely used is coagulation using the synthetic coagulant PAC, whose continuous use can harm human health and reduce the pH value of the water. Therefore, wastewater treatment innovation is needed to overcome this problem. This study will examine the potential of Spirulina platensis as a biocoagulant to reduce turbidity and TSS. This research was conducted in 3 stages, starting from the extraction, protein test, and optimum dose test. The results showed that Spirulina platensis has 0.0114375% protein in 20 gr and can reduce the lowest turbidity at doses of 10-5 ml / L and 10-10 ml / L (in 2 injections) with an effectiveness value of reducing turbidity levels by 63.02% and able to reduce the lowest TSS levels at doses 10-10 ml / L (in 2 injections ) with an effectiveness value of reducing levels by 85%. Based on the Wilcoxon test, it was found that the P-value < 0.05, which means that there is a significant difference in TSS values and turbidity between the results before and after Spirulina platensis biocoagulant treatment.  Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59501 10.14710/presipitasi.v21i2.558-569 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 558-569 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 558-569 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59501/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/34885 2022-02-16T03:29:41Z presipitasi:RSA

Synthesis and Characterization of Biodiesel from Tofu Dregs Oil through Esterification and Transesterification Irradiated by Microwave Agustin, Niyar Candra Prasdiantika, Ricka Kusumawardani, Yustika environmental engineering synthesis, biodiesel, tofu dregs, microwave Biodiesel has become an alternative energy source that continues to be developed. In this research, biodiesel synthesis from tofu dregs oil has been carried out through two stages of the reaction, namely the esterification stage using H2SO4 catalyst to reduce the content of FFA (Free Fatty Acid) and the transesterification stage using KOH catalyst to produce biodiesel. The esterification reaction using 2% H2SO4 catalyst was carried out by microwave heating at power variation of the microwave power 150, 300, 450, 600, 800 Watt with a reaction time of 10 minutes. The transesterification reaction was carried out with variations in microwave power of 150, 300, 450, 600, 800 watts and variations of the reaction time of 5, 10,15,20, and 25 minutes. Biodiesel products were characterized using Gas Chromatography-Mass Spectroscopy (GC-MS), Hydrogen-1 Nuclear Magnetic Resonance (1H-NMR) spectrometer, and feasibility test with the American Standard for Testing Material (ASTM). The characterization results showed that tofu dregs oil biodiesel has been successfully synthesized. The optimum biodiesel was achieved at 600 Watt microwave power with a reaction time of 20 minutes at 92%. The formation of biodiesel is evidenced by several methyl ester peaks, namely methyl oleate (59.98%), methyl linolenic (28.13%), methyl palmitate (8.54%), and methyl stearate (2.32%). Based on the results of ASTM biodiesel tofu dregs oil has met SNI-04-7182-2006 standards, namely the specific density parameter 60/60 ° F (0.87 g/cm3), kinematic viscosity at 40 ° C (4.3 mm2/s), pour point (8 °C), flash point (202 °C) and cloud point (7 )° C for biodiesel. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34885 10.14710/presipitasi.v18i1.28-36 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 28-36 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 28-36 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34885/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/34885/7010 Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/80404 2026-05-11T18:00:22Z presipitasi:RVA

A Comprehensive Framework for Drainage, Dewatering and Treatment Technologies in Acid Mine Drainage Control Jarwinda, Jarwinda Andrew, Andrew Rivaldi, Tio Al Hijri, M. Khalid Ernando, Rully Hakim, Hafidzul Zein, Alfath Lestari, Leta Lestari, Divia Nainggolan, Ellyas Alga Anwar, Dedy Devitriano, Dodi Syarifuddin, Hutwan Maryani, Anis Tatik Environmental Engineering Acid mine drainage; adaptive management: hybrid treatment systems; lifecycle assessment; resource recovery Acid mine drainage (AMD) represents a long-term environmental challenge originating from the oxidation of sulfide minerals and mobilization of dissolved metals into surrounding water systems. This study developed a comprehensive framework for AMD control that integrates drainage prevention strategies, hydraulic engineering, active and passive treatment technologies, monitoring systems, and sustainability principles into a unified approach. The framework synthesizes advances in geochemical mine planning, diversion and dewatering systems, hybrid chemical–biological treatment processes, and emerging technologies, including microbial electrochemical systems, selective metal recovery, and digital twins. A life cycle assessment was applied to evaluate environmental and economic trade-offs, emphasizing the potential for circular economy strategies that convert AMD byproducts into valuable resources. This review highlights the importance of adaptive management supported by real-time monitoring, stakeholder involvement, and robust regulatory structures. By connecting technological innovation with policy and ecological restoration objectives, the proposed framework supports resilient AMD control over the entire mine lifecycle and contributes to sustainable post-closure water management. Universitas Diponegoro 2026-05-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/80404 10.14710/presipitasi.v0i0.%p Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Article in Press 2026 (For Upcoming Issue) Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Article in Press 2026 (For Upcoming Issue) 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/80404/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4804 2013-05-14T23:21:12Z presipitasi:RSA

PERKEMBANGAN BIOFILM NITRIFIKASI DI FIXED BED REACTOR PADA SALINITAS TINGGI Sudarno, Sudarno Environmental Engineering; Environment Environmental Engineering; Environment Development of nitrification biomass that is growing attached on carried material was examined by measuring its ammonium or nitrit oxidation rates. Porous ceramic rings (36 pieces) were put into the fixed bed reactor (FBR ). The fixed bed reactor  that was operated continuously for more than 500 day was continued to be operated at a HRT of 1 day, a DO of above 5 mg L-1 and pH of 8. Ammonia concentration in the feeding was 50 mg NH4+-N L-1.  At days 1, 5, 12, 20, 33 and 50, six porous ceramic rings were taken out and then ammonia and nitrite removal rate by biofilm in the ceramic rings was separately measured. The measurement of rates was done in small cylindrical glass reactors with initial concentration of ammonia and nitrite was 10 mg N L-1. Until 50 days of incubation AORs were always higher than NORs. Additionally, ammonia oxidizers attach or grow faster in the porous ceramic material than nitrite oxidizers. Keywords: saline wastewater, Ammonium Oxidizing Bacteria, Nitrit Oxidizing Bacteria, biofilm Universitas Diponegoro 2012-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4804 10.14710/presipitasi.v9i1.1-9 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 1 (2012): Vol 9, No 1 (2012); 1-9 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 1 (2012): Vol 9, No 1 (2012); 1-9 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4804/4354

oai:ojs.ejournal.undip.ac.id:article/51814 2023-04-08T21:36:46Z presipitasi:RCS

Assessment of the Environmental Impact of Drug Products Using Life Cycle Assessment: A Case Study in a Pharmaceutical Company, Semarang Hartini, Sri Sari, Diana Puspita Ningrum, Dian Tri Kusuma Teknik Industri Pharmaceutical industry; life cycle assessment; eco-cost; energy convention The pharmaceutical production process produces 55% greater emission intensity than the automotive industry. Along with increasing attention to the environmental impact of pharmaceutical drugs, pharmaceutical companies need to know the impact resulting from their production processes. This study analyzes the environmental impact of the anti-hangover drug production process using a Life Cycle Assessment. The analysis was carried out on 1 batch which produced 1,000,000 drugs. The scope of the gate to gate study from the initial process to the end of production. The research objective was to determine the potential impact resulting from the drug production process on the environment. The indicator measured is eco-cost, which is the cost of environmental impact calculated using the SimaPro software. This study found that the eco cost was IDR 3,931,237.65 with the largest environmental costs in the packaging process and the largest impact indicator on climate change. The biggest source of impact comes from the consumption of electrical energy. This study recommends the use of solar panels. For the energy conversion process, 80 KWp is needed with 288 solar panels and a land requirement of 0.564 Ha. This recommendation is estimated to reduce 22% percent of environmental costs. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51814 10.14710/presipitasi.v20i1.140-152 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 140-152 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 140-152 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51814/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/15964 2020-04-17T11:34:48Z presipitasi:RSA

Revitalisasi Pengelolaan Bank Sampah Di Palabuhanratu Samadikun, Budi Prasetyo Handayani, Dwi Siwi Laksana, Muhamad Permana Bank sampah di Kelurahan Palabuhanratu sudah berdiri sejak tahun 2010. Bank sampah ini adalah salah satu bank sampah diantara dua bank sampah lain, yang baru berdiri pada tahun  2016. Volume sampah pada tahun 2015 sebesar 134,89 m3 per hari, mencakup 89% wilayah Kelurahan Palabuhanratu ternyata masih belum optimal dalam pengolahannya, karena  sampah yang direduksi masih sekitar 5% dari total timbulan sampah yang dikirim ke TPA Cimenteng yang berlokasi sekitar 70 km dari Kelurahan Palabuhanratu. Kinerja bank sampah eksisting masih kurang, karena satu bank sampah hanya mampu melayani satu RW dan belum dapat melayani satu kelurahan. Selain itu, pengolahan sampah organik untuk dijadikan kompos belum dilakukan secara serentak oleh seluruh masyarakat, karena pengetahuan masyarakat yang masih kurang. Tujuan penelitian adalah mengetahui kondisi eksisting pengelolaan sampah dan merumuskan upaya revitalisasi Bank Sampah eksisting sebagai pihak pendukung pengelolaan sampah di TPS Kelurahan Palabuhanratu. Metode penelitian menggunakan metode survei, dengan menggunakan kuesioner, wawancara mendalam, dan observasi. Teknik analisis menggunakan analisis kuantitatif dan analisis kualitatif. Hasil penelitian menunjukkan bahwa masyarakat yang melakukan pemilahan sampah dari sumber hanya penduduk RT 01 RW 33. Selain itu jumlah TPS di Kelurahan Palabuhanratu masih terbatas, sehingga membutuhkan tambahan 5 unit TPS yang terintegrasi dengan bank sampah di kelurahan ini.Kata kunci: revitalisasi, bank sampah, PalabuhanratuThe  waste bank in Palabuhanratu Village  has been established since 2010. This waste bank is one of the waste bank among two other waste banks, newly established in 2016. The volume of waste in 2015 is 134,89 m3 per day, covering 89% of Palabuhanratu Village area  is still not optimal in its processing, because the reduced waste is still about 5% of the total waste generation delivered to the Cimenteng Final Diposal Site (FDS), which located about 70 km from Palabuhanratu Village. The existing waste bank’s performance is still very poor, because one waste bank can only serve one RW and can not serve the entire village. In addition, the processing of organic waste to be compost has not been done simultaneously by the whole community, due to the lack of people's knowledge. The purpose of this research is to know the existing condition of waste management and to formulate the revitalization of existing waste bank. The research used survey research method by using questionaire, in depth interview, and observation. Analytical technique using quantitative and qualitative analysis. The findings shows that the residents of Palabuhanratu Village who often do waste sorting from the source only from the residents of RT 01 RW 33. In addition, the number of existing temporary disposal site (TDS) in Palabuhanratu Village is still lacking, so it requires addition up to 5 units that integrated with waste bank in this village.Keywords: revitalization; waste bank, Palabuhanratu Universitas Diponegoro 2017-11-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/15964 10.14710/presipitasi.v14i2.68-74 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 68-74 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 68-74 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/15964/pdf Copyright (c) 2017 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/64644 2025-05-18T20:39:07Z presipitasi:RCS

Analysis of Cumulative Energy Demand Potential Using Life Cycle Assessment Approach: A Case Study of XYZ Laboratory Samadikun, Budi Prasetyo Syafrudin, Syafrudin Wahyuni, Retno Hari Environmental Engineering; CED; LCA; XYZ Laboratory; Energy Efficiency; Environmental Impact Environmental issues such as ecosystem damage, degradation and climate change require effective environmental management strategy. This study analyzes the cumulative energy demand (CED) potential of the XYZ Laboratory activities using a Life Cycle Assessment (LCA) approach. The LCA methodology, adhering to ISO 14040 and ISO 14044 standards, encompasses goal and scope definition, inventory analysis, impact assesment, and interpretation. Data were collected from XYZ Laboratory's activities during 2023, focusing on four main process units: sample administration, fulfillment of testing laboratory conditions, sample preparation, and instrumentation analysis. The environmental impact of CED was characterized using OpenLCA version 2.0 software with the Ecoinvent database and then calculated using a spreadsheet. The result is XYZ Laboratory have a significant environmental impact. The instrumentation analysis stage and sample preparation stage are the two highest potential impacts of CED with a contribution of 52.559 MJ per analysis service (50.948%) and 35.970 MJ per analysis service (34.867%).The study concludes that significant efforts are required to reduce energy use and environmental impact, suggesting techniques such as good housekeeping, input change, better process control, technology change, on-site reuse and recycling, and production of useful by-products. These strategies aim to enhance energy efficiency of laboratory operations. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64644 10.14710/presipitasi.v21i3.894-906 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 894-906 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 894-906 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64644/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39722 2022-08-18T09:44:43Z presipitasi:RCS

Jatiluhur Reservoir Water Quality Analysis at Various Depths Wardhani, Eka Sugiarti, Zulfah Ananda Teknik Lingkungan Jatiluhur; floating net cages; pollution organic The Jatiluhur Reservoir is an important building in West Java Province whose dams the Citarum River. The location of the Jatiluhur Reservoir, which is the most downstream of the Saguling and Cirata Reservoirs, is where domestic, industrial, and agricultural wastewater pollution is accommodated from water catchment areas so that water quality decreases. This study aims to analyze the water quality in this reservoir at various depths. The study was conducted in September 2020 at 16 sampling points at a depth of 0-8 meters. The water quality parameters analyzed were Temperature, Dissolved Residue (TDS), pH, Dissolved Oxygen (DO), Fluoride (F-), Nitrate (NO3-N), Sulfate (SO42-), BOD5, COD, and Escherichia coli. Based on the study results, it was found that the concentrations of DO, BOD5 and COD at the monitoring location of the Jatiluhur Reservoir did not meet the quality standards. The concentrations of DO, BOD5 and COD respectively 1.00-3.99 mg/L; 3.10-17.00 mg/L; and 28.00-59.00 mg/L. These three parameters contribute to the decline in water quality. The status of water quality using the IP method is categorized as lightly polluted so that it affects the utilization of this reservoir, especially as raw water for drinking water. The highest level of contamination was at the floating net cages sampling location at a depth of 8 m. The decline in water quality in the Jatiluhur Reservoir is caused by organic substances originating from floating net cages waste.  Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39722 10.14710/presipitasi.v18i3.400-411 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 400-411 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 400-411 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39722/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10939 2016-05-03T19:54:24Z presipitasi:RVA

EVALUASI KEKRITISAN LAHAN DAERAH ALIRAN SUNGAI (DAS) DAN MENDESAKNYA LANGKAH-LANGKAH KONSERVASI AIR Sarminingsih, Anik Environmental Engineering critical land, water conservation, land rehabilitation There are some critical lands scattered in watershed or basin in Indonesia.The existing area that wide enough tend to threat the potential critical land which still good in other land uses, as: forest, plantation, cultivation,  industry,  mining,  residential,  etc.  To  prevent  land  degradation  that increasing tends need effort for rehabilitating critical land. For potential critical land which still good enough needs prevent to watershed damage in order to watershed optimally functioned as producer and regular water. To obtain the aim was done by land conservation. Cisangkuy sub basin  is  apart  of  Citarum  basin.  Cisangkuy  sub basin  is  a  buffer  zone  in  fulfilling  water  for Kotamadya Bandung and  Kabupaten Bandung. Cisangkuy sub basin is critical which shown by erosion,  sedimentation  and  discharge  fluctuation.  The  erosion  in Bandung  valley  specially  in Cisangkuy sub basin is 163 ton/ha/yr. Sedimentation in Saguling reservoir is 3.02 – 4.32 billions m3 / year. Discharge fluctuation of minimum to maximum have range 49 - 394 m3/s. There are needed effort  of  land  and  water  conservations  by  structural  or  non  structural  to  suppor Gerakan Nasional - Kemitraan Penyelamatan Air (GNKPA) Universitas Diponegoro 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10939 10.14710/presipitasi.v2i1.8-14 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 8-14 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 8-14 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10939/8630

oai:ojs.ejournal.undip.ac.id:article/54736 2024-06-14T22:00:52Z presipitasi:RSA

Advanced Treatment of Tofu Wastewater using Multilevel Filtration and TiO2 Photocatalysis as Promising Approach for Effective Wastewater Remediation Adriansyah, Endi Marhadi, Marhadi Herawati, Peppy Viareco, Hariestya Sufra, Rifqi Emilia Agustina, Tuty Environmental Engineering Multilevel filtration; TiO2 photocatalysis; tofu wastewater Tofu production is known to generate large amounts of wastewater containing a variety of organic compounds, chemicals, and potentially hazardous substances. It is very important to apply proper treatment of harmful substances that impact this wastewater. The aim of this study is to explore advanced techniques for treating tofu wastewater by combining multilevel filtration and TiO2 photocatalysis methods. To evaluate the efficiency of the treatment process, influent and effluent parameters, including pH, total suspended solids (TSS), and chemical oxygen demand (COD), are carefully monitored and measured. The results clearly demonstrate the impressive removal efficiency achieved through the combined use of multilevel filtration and TiO2 photocatalysis in treating tofu wastewater. The treated wastewater showed a promising efficiency in pH (100%), a significant decrease in TSS (40%), and COD (72%). the final measurements of pH met the standards set by government regulations, indicating successful remediation of these specific parameters. Even though TSS and COD haven't met the standard limits, each of them shows a very promising efficiency improvement. Towards the end of this study, it is suggested that the combination of these methods holds promise for effectively remediating tofu wastewater. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54736 10.14710/presipitasi.v20i3.560-571 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 560-571 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 560-571 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54736/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/22082 2020-04-17T11:37:51Z presipitasi:RSA

Biosorpsi Logam Berat Cu(II) Menggunakan Limbah Saccharomyces Cereviseae Setiawan, Adhi Basyiruddin, Fariz Dermawan, Denny Chemical Engineering waste water treatment; biosorbsi Biosorpsi merupakan salah satu jenis bentuk pengolahan limbah logam berat dengan menggunakan mikroorganisme, seperti bakteri, alga dan ragi (yeast). Penelitian ini  menggunakan ragi (yeast) dari industri bir. Proses preparasi biosorben meliputi pengendapkan, pengeringan, dan pengayakan untuk memperoleh ukuran homogen. Biosorben yang terbentuk kemudian dikontakkan dengan larutan Cu (II) dengan konsentrasi 25 mg/L dan diteliti pengaruh pH (3, 4, 5), waktu kontak (1, 2, 3 jam) dan berat biosorben (0,25, 0,5, 0,75 gr) terhadap kemampuan biosorben dalam menurunkan konsentrasi logam Cu. Selanjutnya pada persen removal tertinggi dilakukan regenerasi menggunakan HNO3. Konsentrasi Cu yang setelah biosorpsi diuji menggunakan spektrofotometer Uv-Vis. Hasil penelitian menunjukkan bahwa pada pH 5, waktu kontak 1 jam dan berat biosorben 0,75 gr memiliki persen removal yang tertinggi yaitu sebesar 55,36%. Biosorben yang telah diregenerasi mengalami penurunan persen removal logam Cu (II) dari 55,36% menjadi 48,2%. Universitas Diponegoro Laboratorium Kimia Politeknik Perkapalan Negeri Surabaya 2019-06-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22082 10.14710/presipitasi.v16i1.29-35 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 29-35 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 29-35 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22082/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/69857 2025-12-04T00:06:42Z presipitasi:RCS

Phytoremediation as a Sustainable Solution for Mercury Contamination in Artisanal Gold Mining Sites: Insights from ASGM in South Lampung, Indonesia Danasla, Muhammad Akbari Anjelita, Chyndy Julyanto, Rizqi Arbi mining engineering;reclamation;post mining;environmental of mining Phytoremediation; ASGM; soil pollution; mercury contamination; environmental degradation Artisanal and small-scale gold mining (ASGM) contributes significantly to mercury contamination, posing severe environmental and health risks due to the improper disposal and release of mercury into soil and water. This study investigated the potential of phytoremediation as a sustainable solution for mitigating mercury contamination at an ASGM site in XYZ Village, Katibung Subdistrict, South Lampung Regency, Indonesia.  Water and soil samples were collected from the field, and the study was conducted on a laboratory scale. Initial assessments revealed mercury concentrations of 0.367 mg/L in water and 74.8215 mg/kg in soil, both exceeding national regulatory limits. Phytoremediation trials were conducted using Eichhornia crassipes (water hyacinth), Pistia stratiotes L. (water lettuce), and Cyperus rotundus (nutgrass) under controlled conditions. Water hyacinth demonstrated 100% mercury removal efficiency in water within nine days, whereas nutsedge reduced mercury levels in soil by 61.8% over 21 days. The combined treatment of water hyacinth and water lettuce further enhanced mercury removal in the water samples. The results highlight phytoremediation as an effective, low-cost, and eco-friendly strategy for the rehabilitation of mercury-contaminated environments. This can be implemented in other places with similar conditions. Future research should focus on optimizing phytoremediation techniques and integrating them into community-based environmental management. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69857 10.14710/presipitasi.v22i2.432-447 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 432-447 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 432-447 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69857/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/45595 2022-12-14T20:16:03Z presipitasi:RVA

Systematic Review: Noise Exposure Risks and Factors Associated with Hypertension Incidence in Workers Arumdani, Intan Sekar Setiani, Onny Joko, Tri Ilmu lingkungan; Kesehatan Lingkungan; Kesehatan Lingkungan Industri Noise Exposure; Hypertension; Blood pressure ; Worker Noise is associated with hypertension. Exposure to noise that exceeds quality standards can cause an increase in workers' blood pressure. This study was conducted to examine the risk of noise exposure and the factors associated with the incidence of hypertension in workers through a systematic review method. Article searches were conducted through the journal sites Google Scholar, Garuda Portal, Science Direct, Proquest, JSTOR, Scopus, Semantic Scholar, and PubMed. The selection of articles was carried out with the following criteria: the dependent and independent variables were the incidence of hypertension in workers and exposure to noise, open access full text, the articles selected were articles with a publication date of not more than 10 years (2012-2021), and articles in English. Indonesian and English. Based on 724 relevant articles, 9 main articles met the criteria and were discussed further in this study. 9 main articles showed statistical test results p-value <0.05 which means there is a significant relationship between noise exposure and the incidence of hypertension in workers. Other factors, namely age of workers, length of work, gender, use of ear protective equipment, BMI, and family history of hypertension all have a significant relationship with the incidence of hypertension. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45595 10.14710/presipitasi.v19i1.158-167 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 158-167 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 158-167 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45595/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10970 2016-05-05T04:32:12Z presipitasi:RVA

STUDI PEMILIHAN CALON LOKASI TEMPAT PEMBUANGAN AKHIR SAMPAH KABUPATEN PEMALANG Hardyanti, Nurandani Syafrudin, Syafrudin Environmental Engineering Garbage, area, landfilling, Le Grand, SK SNI, Kabupaten Pemalang . Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10970 10.14710/presipitasi.v4i1.37-42 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 37-42 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 37-42 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10970/8661

oai:ojs.ejournal.undip.ac.id:article/56263 2025-05-18T20:36:13Z presipitasi:RCS

Spatiotemporal Evaluation of Pulmonary Tuberculosis Case in Karang Intan District, South Kalimantan, 2020-2021 Lasari, Hadrianti Haji Darise Amelia, Amelia Fakhriadi, Rudi Rosadi, Dian Musafaah, Musafaah Ali, Indra Haryanto Public Health Tuberculosis; cluster; space-time; SaTScan Pulmonary Tuberculosis, hereinafter abbreviated as pulmonary TB, is an infectious disease caused by a group of acid-resistant bacteria, namely Mycobacterium tuberculosis. Pulmonary TB is also still a major health problem in Banjar District, South Kalimantan Province, Indonesia. This research is a descriptive study that aims to identify spatial and temporal clusters of pulmonary TB cases in Karang Intan District, Banjar Regency during 2020 – 2021. The statistical retrospective space-time scan with a Poisson probability model was performed to analyzed the data. The spatial units analyzed in this study included 26 villages in Karang Intan District, with a time unit of 2 years, namely 2020 – 2021. The results of the analysis show that there were 3 clusters of pulmonary TB detected and spread across 26 villages in Karang Intan District. There were 2 clusters in 2020, and 1 cluster in 2021. The transmission of pulmonary TB clusters during 2020-2021 was mostly found in areas with relatively medium or high population density. However, the three detected clusters show a P-value > 0,05 which indicates that the clusters are not statistically significant.    Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56263 10.14710/presipitasi.v21i1.184-193 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 184-193 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 184-193 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56263/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/70463 2025-12-13T04:17:17Z presipitasi:RCS

Optimization of District Metered Areas for Reducing Non-Revenue Water Swantara, Dewa Made Indra Widnyana Razif, Mohammad Pramitasari, Yantri Novia Teknik Lingkungan District meter area; non-revenue water; optimization Non-revenue water (NRW) is a significant issue for water supply in Indonesia, with a national NRW rate of 33.7% in 2022 and even higher at PT Air Minum Giri Menang (PT AMGM) at 36.21%. Although District Metered Areas (DMA) were implemented in 2018, their effectiveness has been limited due to poor monitoring. This study evaluates the current DMA conditions by creating a water balance and using EPANET 2.2 software for analysis, along with formulating optimization strategies through technical, financial, and institutional assessments. The research identifies fifteen DMAs, with five being well-established. Two DMAs were chosen for optimization. Simulations showed that many pipes in these DMAs did not meet flow speed standards. Water pressure in DMA Graha Permata Kota was fully satisfied at 100%, while DMA Elit Kota Mataram achieved 84.5%. The study noted a significant NRW reduction by an average of 27.26% in the selected DMAs. The total repair cost was Rp 14,725,300, leading to additional annual revenue of Rp 128,747,424 and a positive feasibility analysis. Institutional performance was rated as "good," but an increase of 14 field staff for water loss control is needed. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70463 10.14710/presipitasi.v22i3.922-936 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 922-936 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 922-936 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70463/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/70463/19035 Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42962 2023-03-29T21:11:54Z presipitasi:RSA

The Effect of Environmental Quality and Gender Inequality on Human Well-Being in Indonesia during Pandemic Covid-19 Oktavilia, Shanty Setyadharma, Andryan Wahyuningrum, Indah Fajarini Sri Yuneldi, Tania Wicaksana Environmental quality; gender inequality; human well-being; FEM; pandemic Covid-19 This study examines the impact of environmental quality and gender equality on human welfare in Indonesia from 2015-2020, using a panel database of 33 provinces. The results of the model selection testing with the Chow test and the Hausman test recommend regression analysis using the Fix Effect Model (FEM). This study resulted in the finding that there is a unidirectional and significant relationship between gender equality and human well-being. That means that gender inequality has the opposite effect. The second finding is that statistically, there is a positive relationship between environmental quality and human welfare in the case of provinces in Indonesia. The estimation results show that economic growth has a positive and significant relationship with human well-being in Indonesia. This study indicates that human well-being in Indonesia before and during the Covid-19 pandemic shows differences. The novelty of this study is to analyze the effect of gender equality and environmental quality indicators in influencing human welfare. In addition, this research also accommodates the Covid-19 pandemic period in an empirical model. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42962 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 417-425 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 417-425 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42962/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11002 2016-05-04T22:32:00Z presipitasi:RVA

SISTEM PENYEDIAAN AIR MINUM DAERAH LAYANAN KECAMATAN KETANGGUNGAN KABUPATEN BREBES Wardhana, Irawan Wisnu Environmental Engineering Sistem Penyediaan Air Minum, sumur dalam, Brebes . Universitas Diponegoro 2010-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11002 10.14710/presipitasi.v7i1.48-56 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 48-56 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 48-56 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11002/8686

oai:ojs.ejournal.undip.ac.id:article/61649 2025-05-18T20:37:10Z presipitasi:RCS

Effectiveness Evaluation of Alternative Technologies Applied in Centralized Domestic Wastewater Treatment Systems Mubarok, Ahmad Ernayati, Widya Sjaifuddin, Sjaifuddin Domestic wastewater; removal domestic wastewater; SPALD-T Technology The paper aims to determine the effectiveness of several alternative technologies that have been applied in centralized domestic wastewater management systems, especially in West Java and Banten provinces, in the removal of domestic wastewater pollutant parameters. The study was conducted in SPALD-Ts, including the Anaerobic Baffle Reactor (ABR) system, the Anobic Filter (AF) system, the combined ABR + AF system, and the Extended Aeration. The analysis was performed by sampling at the inlet and outlet points of the system for three consecutive years with sampling times from 2021 - 2023. The results of the research show that the efficiency of pollutant parameter separation based on the best technology in the separation of domestic wastewater pollutant parameters is the SPALDT extended aeration technology, where this technology can separate pollutant parameters up to an average of 88.25%, but in this technology requires more cost and periodic maintenance. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61649 10.14710/presipitasi.v21i2.455-468 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 455-468 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 455-468 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61649/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/33841 2020-12-16T21:33:09Z presipitasi:RVA

Perkembangan Penelitian Mikroplastik di Indonesia Development of Microplastic Research in Indonesia Alam, Firdha Cahya Rachmawati, Mulki Teknik Lingkungan; Ilmu Lingkungan; Mikroplastik mikroplastik; distribusi; Indonesia; perkembangan; penelitian Environmental Engineering microplastics; distribution; Indonesia; development; research Mikroplastik merupakan partikel plastik yang memiliki diameter kurang dari 5 mm. Penelitian terkait mikroplastik telah berkembang di dunia begitu pula di Indonesia. Penelitian yang ada di Indonesia telah dilakukan di berbagai tempat di Pulau Sumatera, Jawa, Kalimantan, Sulawesi, hingga Papua. Namun, belum ada kajian tentang sudah sejauh mana status perkembangan penelitian mikroplastik yang ada di Indonesia saat ini. Paper ini menjelaskan perkembangan penelitian mikroplastik di Indonesia sejak tahun 2014 hingga 2020 menggunakan metode systematic review.  Hasil review menunjukkan bahwa mayoritas penelitian mikroplastik yang ada di Indonesia rata-rata seputar persebaran dan distribusi mikroplastik, baik di perairan tawar, laut, dan dalam tubuh organisme. Dari segi lokasi, mayoritas penelitian mikroplastik berada di Pulau Jawa (66,67%), dengan bentuk mikroplastik yang banyak ditemukan adalah fiber, dibandingkan dengan bentuk yang lainnya. Selain itu, didapatkan konsentrasi mikroplastik yang bervariasi dari berbagai lokasi. Namun, konsentrasi yang didapatkan tidak bisa langsung dibandingkan, karena metode sampling yang digunakan berbeda antara satu lokasi dengan lokasi yang lain. Hal ini disebabkan belum terstandardisasinya metode sampling mikroplastik Microplastics are plastic particles that have a diameter less than 5 mm. Research related to microplastics has developed in the world as well as in Indonesia. Research in Indonesia has been carried out in various places on the islands of Sumatra, Java, Kalimantan, Sulawesi and Papua. However, there has been no study of the current development status of microplastic research in Indonesia. This paper describes the development of microplastic research in Indonesia from 2014 to 2020 using a systematic review method. The results of the review show that the majority of research on microplastics in Indonesia is about the distribution of microplastics, both in freshwater, marine, and in organisms. In terms of location, the majority of research on microplastics was in Java (66.67%), with the most common form of microplastics being fiber, compared to other forms. In addition, various microplastic concentrations were obtained from various locations. However, the concentrations obtained cannot be directly compared, because the sampling method used is different from one location to another. This is because the microplastic sampling method has not been standardized. Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33841 10.14710/presipitasi.v17i3.344-352 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 344-352 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 344-352 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33841/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/79692 2026-04-21T07:44:25Z presipitasi:RSA

Iron-Manganese Correlation and Community Perception of Groundwater Quality Rohmatulaeny, Wahyu Zolla Masykuri, Mohammad Rosariastuti, Retno Candraningtyas, Callista Fabiola Teknik Lingkungan; Ilmu Lingkungan; Kesehatan Lingkungan Community participation; groundwater quality; iron; manganese; natural bioremediation Groundwater contamination with iron (Fe) and manganese (Mn) remains a significant challenge in rural areas with limited access to modern water treatment technologies. In the Margorejo Village, Tempel District, Sleman, groundwater from domestic wells exhibited elevated Fe and Mn concentrations related to local geochemical conditions. This study investigated the efficacy and acceptance of a hybrid phytocoagulation system combining extracts from Eichhornia crassipes and Moringa oleifera seeds to enhance metal removal through a combination of biosorption, biooxidation, and protein-induced flocculation. Variations in plant biomass (0–30 leaves), Moringa dose (0–100 mg/L), and contact time (0–16 days) were investigated in a factorial randomized block trial. The optimal configuration (30 leaves, 100 mg/L, 16 days) reduced the iron concentration to 0.082 mg/L (97.77%) and the manganese concentration to almost zero (98.71%). Pearson correlation analysis revealed a strong positive correlation between iron and manganese concentrations (r=0.821), indicating similar geochemical behavior. A public perception analysis with 30 respondents showed high acceptance (75.72%), particularly in households directly affected by contamination. These results demonstrate that hybrid phytocoagulation is a cost-effective, environmentally sustainable, and socially acceptable method for decentralized groundwater treatment and underscore the importance of public participation for long-term implementation Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79692 10.14710/presipitasi.v23i1.143-157 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 143-157 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 143-157 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79692/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/2830 2016-05-21T14:19:41Z presipitasi:RVA

PENURUNAN WARNA, COD DAN TSS LIMBAH CAIR INDUSTRI TEKSTIL MENGGUNAKAN TEKNOLOGI DIELECTRIC BARRIER DISCHARGE DENGAN VARIASI TEGANGAN DAN FLOW RATE OKSIGEN Hadiwidodo, Mochtar Huboyo, Haryono Setyo Indrasarimmawati, Indrasarimmawati Environmental Engineering; Environment textile wastewater, Dielectric Barrier Discharge, oxidation, active species Textile wastewater consist of colour matter, Chemical Oxygen Demand (COD) and Total Suspended Solid (TSS) in high dose so that it have potency to pollute environment. Generally, textile wastewater can be treatment by konventional method. But, this method was not efficient because operational cost which is expensive. Discharge technology is new method to textile wastewater treatment. Dielectric Barrier Discharge reactor is discharge reactor to decompose organic matter in wastewater. Discharge was formed in reaktor which was given high voltage current to result active spesies with high oxidation potential, such us •OH, •O, •H, O3 dan H2O2 which are important to organic matter decomposition. This research intends to know capability of discharge which was formed in Dielectric Barrier Discharge reactor to decrease color matter, COD, and TSS. Textile wastewater was treatment ini the Dielectric Barrier Discharge reactor with variation in voltage (16,17,18 kV) and Oxygen flow rate (0,5;1,5;2,5 l/m). Voltage and oxygen flow rate variation affective to decomposition efficiency of colour, COD and TSS. Decomposition of each pollutant will be higher with voltage increasing and flowrate decreasing. Colour, COD and TSS decreasing was highest when was given maximum Voltage (18 kV) and minimum Oxygen flow rate (0,5 l/m). Percentages of colour, COD and TSS are 47,78%, 76,50% and 70,72%. Even pH in final treatment are between 6-7. Energy input which was needed to maximal treatment is 0,1128 kWh with electrical cost Rp.8,134/l. Universitas Diponegoro 2009-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/2830 10.9767/bcrec.%v.%i.2830.121-129 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 2 (2009): Vol 6, No 2 (2009); 16-22 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 2 (2009): Vol 6, No 2 (2009); 16-22 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/2830/2514

oai:ojs.ejournal.undip.ac.id:article/50988 2023-04-08T21:36:46Z presipitasi:RSA

Nutrient Recovery from Agricultural Waste Water Using Electrocoagulation Process, A Case Study of Thekelan, Semarang, Indonesia Budihardjo, Mochamad Arief Sudarno, Sudarno Priyambada, Ika Bagus Chegenizadeh, Amin Purwono, Purwono Teknik Lingkungan Wastewater; suds; recovery nutrient; nitrate; phosphate Eutrophication is a natural phenomenon in aquatic ecosystems that causes algae and other aquatic plants to overproduce. This process can benefit the ecology in tiny amounts, but too many nutrients can generate hazardous algal blooms and kill fish and other aquatic life. To prevent eutrophication and sustain aquatic ecosystems, agricultural waste water like microalgae production wastewater must be treated. The goal of the project is to get nitrogen and phosphorus out of the wastewater from growing microalgae, which is an agricultural waste water. One way to recover nutrients from wastewater is electrocoagulation. This procedure uses an electric current to create microscopic gas bubbles that collect and remove pollutants from wastewater. According to this study, electrocoagulation reduces phosphate and nitrate in microalgae culture wastewater. Phosphate concentration dropped by 90.20% in the 15th minute, while nitrate concentration dropped by 36.19% in the 30th minute. These reductions may be caused by struvite formation and nitrate conversion to nitrogen gas. This study demonstrates that electrocoagulation is a potential technology for recovering nutrients from agricultural waste water and reducing aquatic ecosystem eutrophication. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50988 10.14710/presipitasi.v20i1.44-52 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 44-52 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 44-52 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50988/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/14716 2020-04-17T11:34:00Z presipitasi:RSA

KAJIAN KUALITAS AIR DAN SEDIMEN DASAR SUNGAI KUTAI LAMA-KAB. KUTAI KARTANEGARA SEBAGAI PERTIMBANGAN AWAL RENCANA PENGERUKAN Wibowo, Mardi Balai Teknologi Infrstruktur Pelabuhan dan Dinamika Pantai – BPPT kualitas air, sedimen dasar, pengerukan Rona lingkungan awal kualitas air sungai dan sedimen dasar sangat diperlukan sebelum dilakukan pengerukan sebagai bahan untuk memperkirakan dampak lingkungan yang muncul akibat kegiatan pengerukan. Pengambilan sampel air dilakukan dengan mengikuti Standard Method dari APHA-AWWA (1995) dan dianalisis di laboratorium dengan berpedoman pada Peraturan Pemerintah No. 82 Tahun 2001 Tentang Pengelolaan Kualitas Air dan Pengendalian Pencemaran Air. Berdasarkan hasil analisis dan kajian ini diketahui bahwa kualitas air sungai di Kutai Lama masih tergolong baik (berdasarkan baku mutu air Kelas I PeraturanPemerintah No. 82 Tahun 2001). Beberapa parameter yang melebihi baku mutu air Kelas I PP No. 82 Tahun 2001 adalah BOD, COD, DO, Besi (Fe), deterjen sebagai MBAS. Khusus untuk kandungan logam berat semuanya masih memenuhi baku mutu yang telah ditetapkan. Kualitas sedimen dasar: konsentrasi logam mangan (Mn) sangat tinggi jika dibandingkan dengan konsentrasi logam-logam lainnya. Konsentrasi logam berat yang ditemukan dalam jumlah besar berikutnya adalah besi (Fe), seng (Zn), tembaga (Cu) dan yang terkecil adalah timbal (Pb).Berdasarkan standar baku mutu sedimen yang dibuat oleh United State Environmental Protection Agency (USEPA) dan Kementerian Lingkungan Kanada, semua konsentrasi logam-logam berat di daerah kajian termasuk dalam kategori tercemar berat. Universitas Diponegoro 2017-05-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14716 10.14710/presipitasi.v14i1.24-29 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 24-29 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 24-29 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14716/11218 Copyright (c) 2017 Jurnal  Presipitasi  :  Media  Komunikasi  dan  Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/66195 2025-05-18T20:39:07Z presipitasi:RCS

Developing Causal Loop Diagram for Urban Development and Land Carrying Capacity in Surakarta Arsianti, Ari Astuti, Winny Suryanto, Suryanto Candraningtyas, Callista Fabiola Primabudi, Eko Ilmu Lingkungan; Rekayasa Ilmu Lingkungan Land carrying capacity; casual loop diagram; supply; demand; vensim Surakarta has an area of 46.72 km2 with a population of 583,961 people. The land use in Surakarta for housing is 62% and for open space is only 9.82% of the area. Meanwhile, economic growth in this city has always experienced an increasing trend, where in 2023 investment growth reached 55.82%. This study aims to determine the general picture through the causal relationship between the components of urban development and the carrying capacity of land in Surakarta. This study uses a quantitative descriptive approach. Data is obtained from identified variables which are then arranged dynamically using Causal Loop Diagram (CLD) analysis processed with Vensim software. The results show that there is a supply model (built-up area and green open space) and a demand model (population, investment, and Gross Domestic Product). The relationship between variables describes the causal relationship in Surakarta's Land Carrying Capacity divided into three rounds, namely Loop B1 (Land Carrying Capacity – Demand - Supply - Land Carrying Capacity), Loop B2 (Supply - Built-up Land - Land Conversion - Green Open Space – Supply), and Loop R1 (Population - Demand - Investment - GDP - GDP per capita – Population). Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66195 10.14710/presipitasi.v21i3.879-893 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 879-893 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 879-893 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66195/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/35079 2022-02-16T03:26:18Z presipitasi:RSA

Removal Efficiency of Chemical Oxygen Demand on Greywater using Multi Soil Layering (MSL) Technology Syafrudin, Syafrudin Hadiwidodo, Mochtar Wardhana, Irawan Wisnu Wardani, Tika Ayu Kusuma Arumdani, Indah Sekar Sudarno, Sudarno Hardyanti, Nurandani Teknik Lingkungan; Limbah Cair; Penyaluran Air Buangan chemical oxygen demand; domestic wastewater; multi soil layering system Greywater is household waste sourced from kitchens and bathrooms, except for toilets. Around 58%-85% of greywater can be generated from the total volume of household wastewater per house. It is necessary to treat wastewater before it is discharged into water bodies to prevent the adverse effects of contaminants on the environment and human health while reducing the demand for clean water. However, due to environmentally friendly, socially sustainable, and economical treatment costs, considering that greywater is produced every day and continuously, Multi Soil Layering (MSL) technology can be an alternative to remove contaminants in water. Thus, this study aims to determine the migration of COD in greywater using MSL technology. Other parameters tested were pH and temperature by taking samples of wastewater in residential areas of Semarang City. In this study, there are two stages, namely the preliminary stage and the running stage. The MSL system will use three reactors with andosol soil, apus bamboo, and coconut shell activated charcoal as mixed soil blocks (SMB). Reactor A (activated charcoal and andosol soil), reactor B (bamboo apus and andosol soil), reactor C (andosol soil, bamboo apus, activated charcoal). The results of domestic wastewater treatment using the MSL method in each of the three reactors could remove COD by 75%, 74%, and 76%. Reactor C obtained the highest COD removal efficiency compared to other reactors. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/35079 10.14710/presipitasi.v18i2.299-305 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 299-305 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 299-305 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/35079/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/9095 2020-04-17T11:31:59Z presipitasi:RVA

STUDI OPTIMASI TAKAKURA DENGAN PENAMBAHAN SEKAM DAN BEKATUL Rezagama, Arya Samudro, Ganjar Environmental Engineering; Environment Komposter Takakura, Temperatur, Inokulum Teknik pengomposan keranjang takakura telah banyak digunakan oleh rumahtangga di berbagai kota-kota besar di Indonesia. Pada sisi operasional terdapat kendalameliputi menurunnya efektifitas kinerja penguraian sampah organik sehingga seringterjadi kegagalan proses. Oleh karena itu, diperlukan suatu cara sederhana dalammeningkatkan kinerja porses pengomposan metode takakura. Secara garis besar,tahapan penelitian dibagi menjadi tahap persiapan, tahap pengomposan, dan tahappengolahan data. Penambahan sekam dan bekatul divariasikan ke dalam lima kotakkeranjang. Inokulum dalam komposter yang digunakan diambil dari keranjang milikmayarakat. Hasil penelitian menunjukkan penambahan sekam dan bekatul pada variasi3. 4, dan 5 belum menunjukkan hasil signifikan dalam meningkatkan kinerja inokulumseperti kotak 1. Temperatur inokulum baru masih di atas temperatur variasi/kotak yanglain. Hal ini disebabkan pada inokulum baru dimungkinkan masih terdapatmikroorganisme aktif serta sisa makanan dan sirkulasi udara yang baik. Namun jikadibandingkan satu persatu, penambahan sekam dan bekatul mampu menaikkantemperatur pada awal penelitian dibanding kotak 2 pada rata-rata proses. Penambahanbekatul dan sekam menyebabkan peningkatan rasio C/N. Namun, peningkatan rasio C/Ntidak serta merta membuat kotak 2, 3, dan 4 memiliki proses degradasi yang lebih baikdaripada inokulum baru yang ditandai dengan temperatur. Kandungan Karbon, Nitrogen,Phospor, dan Rasio C/N keseluruhan kompos matang telah memenuhi standar dalamSNI 19-7030-2004, standar internasional, dan Departemen Pertanian, tetapi masih belumsesuai dengan standar Departemen Pertanian dan PT. PUSRI Universitas Diponegoro 2015-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9095 10.14710/presipitasi.v12i2.66-70 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 12, No 2 (2015): September 2015; 66-70 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 12, No 2 (2015): September 2015; 66-70 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9095/7366

oai:ojs.ejournal.undip.ac.id:article/53756 2023-08-18T02:24:32Z presipitasi:RCS

Identification of the Influence of Socio, Demographic, and Economic Factors on Domestic Water Consumption Patterns (A Case Study: Bandar Lampung City, Indonesia) Awfa, Dion Azka, Ainan Putri, Yulisa Putra, Nasrul Daudsyah Imami, Ahmad Noor Azizah, Rifka Prayogo, Wisnu Teknik Lingkungan Water consumption; Bandar Lampung; consumption patterns; urban water management; SDGs Urban water management efforts are essential in encouraging the fulfillment of the SDGs targets. One action that can be done is to approach the calculation of the actual water consumption value. This research conducted a survey of domestic water consumption in Bandar Lampung City to obtain comprehensive information. Bandar Lampung City was chosen because it is one of the cities on the island of Sumatra with a high economic growth rate. Lampung Province is the top 3 province in Sumatera Island with the higher Gross Domestic Product Growth on 2022, with Bandar Lampung as its capital city. Furthermore, water consumption patterns were analyzed for various activities, socio demographic conditions, and the community's economy. The results showed that of the 404 samples, the average water usage was 195.08 liters/person/day, with the dominant activities in use including bathing (66.84 liters/person/day), flushing the toilet (35.71 liters/person) / day), and ablution (29.74 liters/person/day). Furthermore, the variable number of family members in one house and income level have significant different on total domestic water consumption. The results obtained in this study are expected to assist in making decisions regarding urban water management plans. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/53756 10.14710/presipitasi.v20i2.365-377 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 365-377 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 365-377 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/53756/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/53756/14173 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/53756/14174 Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20815 2020-04-17T11:37:17Z presipitasi:RSA

PEMANFAATAN LIMBAH TAHU SKALA RUMAH TANGGA MENJADI BIOGAS SEBAGAI UPAYA TEKNOLOGI BERSIH DI LABORATORIUM PUSAT TEKNOLOGI LINGKUNGAN – BPPT Nisrina, Hanifah Andarani, Pertiwi Teknik Lingkungan biogas; limbah tahu; digesti anaerobik; teknologi bersih; kelayakan biogas Limbah cair yang dihasilkan industri tahu sangat merugikan lingkungan jika tidak dilakukan pengolahan terlebih dahulu. Namun, limbah cair tahu dapat diolah secara anaerob sehingga menghasilkan biogas. Maka dari itu, penelitian ini bertujuan untuk mengetahui besarnya potensi biogas yang dapat dihasilkan dari limbah cair tahu sebagai upaya dalam teknologi bersih serta mengetahui kelayakannya dari aspek ekonomi dan lingkungan. Penelitian dilakukan pada industri tahu skala rumah tangga yang berlokasi di Desa Puspiptek, Tangerang Selatan dengan metode digesti anaerobik. Hasil penelitian menunjukkan bahwa selama waktu tinggal 14 hari, limbah tahu menghasilkan biogas sebesar 1.525 liter dengan penurunan kandungan COD sebesar 8,1% dari 748,75 mg/L menjadi 688,125 mg/L, Total Solid sebesar 56,9% dari 16,36 g/L menjadi 7,049 g/L, dan Volatile Solid sebesar 66,3% dari 14,85 g/L menjadi 5,001 g/L. Hasil analisis simulasi kelayakan biogas berdasarkan aspek ekonomi berupa Harga Pokok Penjualan (HPP) Rp7.342 per kg, BEP 109.500 kg/tahun, dan PBP 0,48 dengan pengolahan limbah tahu sebesar 5676 liter per hari, menghasilkan biogas sebanyak 5,174 m3 per hari. Banyak sekali manfaat yang didapat dari pemanfaatan limbah menjadi biogas, baik dari aspek ekonomi, lingkungan, maupun sosial Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20815 10.14710/presipitasi.v15i2.139-140 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 139-140 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 139-140 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20815/14090 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/70539 2025-12-04T00:06:38Z presipitasi:RCS

Design of Temporary Storage for Hazardous Waste at Politeknik Perkapalan Negeri Surabaya Setiani, Vivin Sholihah, Mar'atus Kurniasih, Dewi Widiarti, Yuning Budiyanto, Ekky Nur Khumaidi, Agus Wibowo, Sekarsari Setyawati, Emeralda Eka Putri Astutik, Rina Puji Teknik Lingkungan; Teknik Pengolahan Limbah Hazardous waste; hazardous waste characteristics; hazardous waste packaging; hazardous waste storage Politeknik Perkapalan Negeri Surabaya has workshops or laboratories that generate hazardous waste from practical learning activities. Currently, hazardous waste is not stored in accordance with regulations, it will pose a danger to the environment and human health. Therefore, this research requires a design for hazardous waste storage that complies with the Minister of Environment and Forestry Regulation number 6 of 2021. The design of fire extinguisher requirements is based on the Regulation of the Minister of Manpower and Transmigration of the Republic of Indonesia No. Per.04/Men/1980 and the design of lighting based on SNI 03-6575-2001. This research discusses the design of hazardous waste storage, including the characteristics of hazardous waste, the design of packaging and the supporting facilities. The characteristics of hazardous waste at the Politeknik Perkapalan Negeri Surabaya consist of flammable waste, toxic waste, and infectious waste. While, the packaging for hazardous waste is equipped with symbols and labels according to their characteristics and volume. The design of the hazardous waste storage building at the Politeknik Perkapalan Negeri Surabaya has dimensions of 11 m x 7 m, equipped with 12 lights and light fire extinguishers, taking into account the location, facilities, and emergency response. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70539 10.14710/presipitasi.v22i1.275-286 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 275-286 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 275-286 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70539/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42892 2022-12-14T20:16:03Z presipitasi:RCS

Assessment of Settlement Quality Levels in Balikpapan Kota Subdistrict, Balikpapan, Indonesia Ulimaz, Mega Pratama, Reynaldi Yudha Dewanti, Ajeng Nugrahaning Syafitri, Elin Diyah Urban Environment Balikpapan Kota Subdistrict; scoring methods; settlement area; settlement quality levels Balikpapan is experiencing rapid urbanization and has an essential role in settlement development. One of the strategic issues of settlements in Balikpapan is the settlements that have decreased in quality in residential in urban areas with a mild level of slum. Based on the Balikpapan Spatial Plan, the spatial pattern in the Balikpapan Kota Subdistrict is dominated by the Settlement Area. It can be said that the components of settlements are the components that are planned to support settlement activities. Therefore, it is necessary to assess the quality of settlements in the Settlement Area in the Balikpapan Kota Subdistrict. The analysis was carried out by quantitative descriptive method (scoring method) with the unit of study for each settlement block or neighborhood. The analysis results of the quality of settlements in the Balikpapan Kota Subdistrict tend to have reasonable quality settlements. There were no areas that had poor settlement quality values. In the research area, from 131 neighborhoods, 19 neighborhoods still have a moderate quality of settlements. It is necessary to increase several components to improve the quality of settlements in each block so that all settlements become more liveable. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42892 10.14710/presipitasi.v19i1.55-67 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 55-67 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 55-67 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42892/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10962 2016-05-04T09:08:33Z presipitasi:RVA

MENILAI AKSESIBILITAS AIR MINUM (STUDI KASUS: AKSESIBILITAS AIR BERSIH BAGI MASYARAKAT MISKIN DI KOTA SEMARANG) Maryono, Maryono Environmental Engineering Water accesibility, poor people, Semarang City Water  accesibility    for  the  poor  people  is  one  of  the  indicator  on  water  supply  and delivary sistem in the cities. Batram and Howard have make a catagorization for the accessibility. There are three level; law accessibility, medium accessibility and hight accessibility. The Accessibility in Semarang City for is at the medium. But the people must spent 5 % from the revenue every month to acces the water. This situation is bad, regarding of the standart, the should spent not more then 3 %. Universitas Diponegoro 2007-08-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10962 10.14710/presipitasi.v3i2.86-92 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 86-92 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 86-92 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10962/8652

oai:ojs.ejournal.undip.ac.id:article/58211 2025-05-18T20:36:13Z presipitasi:RVA

The Review Study of Environmental Education Curriculum in Climate Change Mitigation Syahr, Zulfia Hanum Alfi Syaifullah, Dian Hafit Buyamin, Buyamin Sally, Novian Uticha Adaptation; climate change; curriculum; environmental education; mitigation Indonesia is a country whose geographical location is on the equator, has many islands and tropical forest areas, and is surrounded by volcanoes. Indonesia also has a high potential for natural disasters, such as volcanic eruptions, floods, tsunamis, forest fires, etc. Therefore, it is necessary to introduce early on how to mitigate and adapt to disasters due to climate change. Through education, integrating mitigation and adaptation to climate change will get along with the national education curriculum in Indonesia. The problem in this study is how the concepts of climate change mitigation and adaptation learning models can integrate into the national education curriculum in Indonesia. The goal is to find an ideal model framework for implementing climate change mitigation and adaptation lessons in the national education curriculum. The method used is qualitative, with a literature study of articles indexed in Scopus. The results obtained are that the integrated model of climate change mitigation and adaptation learning can be carried out in several stages, namely: 1) mapping the types of disasters and their mitigation measures; 2) linking knowledge about climate change mitigation and adaptation with real examples; 3) inserting climate change mitigation and adaptation material into various subjects in schools. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58211 10.14710/presipitasi.v21i1.12-25 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 12-25 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 12-25 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58211/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/24672 2020-08-30T22:28:29Z presipitasi:RSA

Effect of Variations on the Type and Size of Organic Waste on Compost Water Content and Growth of Chili Plant Pengaruh Variasi Jenis dan Ukuran Limbah Organik Terhadap Kadar Air Kompos Blok dan Pertumbuhan Tanaman Cabai Novita, Elida Andriyani, Idah Romadona, Zakina Pradana, Hendra Andiananta Teknik Pertanian organic waste; nursery plant; coffee pulp; rice husk; tabacco petiole Teknik Pertanian limbah organik; pembibitan tanaman; kulit buah kopi; sekam padi; tangkai daun tembakau Organic waste is potential as a compost material. It was supported by the amount of nutrient content. The compost block is a technology for utilizing organic material as a plant nursery. The research objective was to examine the variants of type and size of organic matter effect on the water content in compost blocks and vegetative growth of chili plants. The materials type of compost block were coffee pulp, tobacco petiole, and rice husks. Size variations in compost block were 10, 40 and 80 mesh. Experimental design on the types and sizes of organic materials using a Completely Randomized Design. The experimental results show that the highest value of water content in compost block with the watering of the same volume amount 51.22 mL of water is coffee pulp material with a range value of 40 - 50%. Coffee pulp and rice husk as compost block material influenced the vegetative growth of chili plants. The statistical tests that show a significant effect on the type and size of organic waste material on the chili plant growth i.e height and leaf area plants. The results become a consideration for variation type and size of organic waste choice for compost block materials. Limbah organik berpotensi dimanfaatkan sebagai kompos. Hal ini didukung oleh banyaknya limbah dan kandungan unsur haranya. Kompos blok merupakan salah satu teknologi pemanfaatan bahan organik sebagai media pembibitan. Tujuan dari penelitian ini yaitu mengkaji pengaruh jenis dan ukuran bahan organik terhadap kadar air pada kompos blok dan pertumbuhan vegetatif tanaman cabai. Prosedur penelitian ini meliputi uji unsur hara pada bahan organik, pembuatan dan uji kualitas kompos blok, serta aplikasinya terhadap pertumbuhan tanaman cabai. Bahan kompos blok terdiri atas kulit kopi, batang tembakau, san sekam padi. Variasi bahan kompos blok yaitu ukuran 10, 40 dan 80 mesh. Rancangan percobaan pada pelakukan jenis dan ukuran bahan organik menggunakan Rancangan Acak Lengkap (RAL). Hasil percobaan menujukkan bahwa nilai kadar air kompos blok terbesar dengan volume penyiraman yang sama sebanyak 51,22 mL air adalah limbah kulit kopi dengan rentang nilai 40 – 50 %. Bahan kompos blok berupa kulit kopi dan sekam padi memiliki pengaruh kuat terhadap pertumbuhan vegetatif tanaman cabai. Hal tersebut diperkuat dengan uji statitik yang menujukkan pengaruh signifikan antara jenis dan ukuran bahan limbah organik terhadap pertumbuhan tinggi dan luas daun tanaman cabai. Hasil penelitian ini digunakan sebagai pertimbangan pemilihan jenis dan ukuran bahan organik untuk pembuatan kompos blok. Universitas Diponegoro 2020-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24672 10.14710/presipitasi.v17i1.19-28 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 19-28 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 19-28 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24672/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/24672/4799 Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10984 2016-05-21T15:44:06Z presipitasi:RVA

KEMAMPUAN PENYERAPAN ECENG GONDOK TERHADAP AMONIAK DALAM LIMBAH RUMAH SAKIT BERDASARKAN UMUR DAN LAMA KONTAK (STUDI KASUS: RS PANTI WILASA, SEMARANG) Zaman, Badrus Sutrisno, Endro Environmental Engineering Eichhornia crassipes, Ammonia, Waste water,Hospital Growing of Eichhornia crassipes (Mart), Solms) depend on environmental factors e.g. material organics, sun lighting, water depth, salinity, and pH . However this plant have ability to absorb organic element, organic compound, and other chemical element that can be able to use as biological absorber in waste water treatment.The research is to know the effect of contact time and age of  Eichhornia crassipes (Mart), Solms) toward of ammonia concentration in hospital waste water.The method of this research is Experimental design with One Group Pre Test Post Test Design. The outcome of the research have shown that average ammonia concentration decrease with young plants is 62,17 % at 2 days contact time, 87,1 % at 4 days contact time, and 94,3 % at 6 days contact time. With old plant  ammonia concentration decrease 79,35 % at 2 days contac time, 97,61 at 4 days contact ime, and 98,4 % at 6 days contact time. From the result can be conclude that plant of Eichhornia crassipes (Mart), Solms) had significant ablility to descrease of ammonia concentration in waste water. Universitas Diponegoro 2006-08-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10984 10.14710/presipitasi.v1i1.49-54 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 49-54 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 49-54 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10984/8675

oai:ojs.ejournal.undip.ac.id:article/56182 2025-05-18T20:37:10Z presipitasi:RCS

Greenhouse Gas Emission Reduction Strategies in the Transportation, Waste, and Domestic Sectors Huboyo, Haryono Setiyo Hardyanti, Nurandani Durrotunnisa, Isna Maulidya Amani, Isnaini Haya Febriana, Tarisa Farrelia Teknik Lingkungan; ilmu Lingkungan; Rekayasa Ilmu Lingkungan; Teknik Penyehatan greenhouse gas emission inventory; transportation sector; waste sector; domestic sector Population growth in Pekalongan City leads to increased community activities, which in turn raises Greenhouse Gas (GHG) emissions in the transportation, waste, and domestic sectors. This study aims to inventory and project GHG emissions, develop reduction strategies, and design regulations to mitigate these emissions. The method used to inventory GHG emissions from the transportation sector is based on Tier 1 and 2 approaches, while the waste and domestic sectors use the Intergovernmental Panel on Climate Change 2006 method with Tier 1 accuracy. The results of the inventory and projection show that GHG emissions in the transportation sector will reach 455.084 Gg CO2eq by 2032. Strategies to reduce these emissions include optimizing green open spaces (RTH), rejuvenating public transportation, and developing a Bus Rapid Transit (BRT) system, which collectively are expected to reduce emissions by 1.23%. In the waste sector, projected emissions amount to 27.88 Gg CO2eq. Planned strategies, such as increasing waste service coverage to the Degayu Landfill, optimizing waste facilities, and utilizing biogas, can reduce emissions by 15.85%. In the domestic sector, projected emissions are 27.97 Gg CO2eq, with the strategy of developing community-based livestock biogas expected to reduce emissions by 0.22% Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56182 10.14710/presipitasi.v21i2.504-512 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 504-512 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 504-512 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56182/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/32356 2020-12-16T21:32:53Z presipitasi:RSA

Studi Daya Dukung Lingkungan dan Tingkat Kekritisan Berdasarkan Pendekatan Ketersediaan Air Kota Balikpapan Study of Environmental Carrying Capacity and Water Criticality Index Based on Availability Water in Balikpapan City Harfadli, Muhammad Ma'arij Ulimaz, Mega Teknik Lingkungan; Pengelolaan Air bersih dan Air limbah Daya Dukung Lingkungan; Indeks Kekrritisan Air; Konservasi; Sumberdaya air Environmental Engineering; Clean Water and Wastewater Management Carrying Capacity, Water Critical, Conserve, Water Resources Salah satu isu prioritas Kota Balikpapan adalah keterbatasan ketersediaan air baku. Hal ini disebabkan pertumbuhan kegiatan domestik dan non domestik Kota Balikpapan begitu cepat sementara waduk Manggar sebagai sumber utama pemasok air bersih Kota Balikpapan hampir mendekati kapasitas maksimum. Sehingga perlu adanya prediksi ketersediaan air di Kota Balikpapan untuk mencapai titik kritis. Metode yang digunakan adalah menghitung kebutuhan dan ketersediaan air Kota Balikpapan selanjutnya menghitung nilai rasio ketersediaan dan kebutuhan air untuk mengetahui daya dukung lingkungan dan indeks kekritisan air di Kota Balikpapan. Hasil perhitungan status daya dukung lingkungan pada penelitian ini menunjukkan sumberdaya air di Kota Balikpapan tahun 2019 hingga 2029 bernilai antara 1-2 sehingga dapat dikatakan masuk dalam kategori aman bersyarat. Perhitungan indeks kekritisan air menunjukkan bahwa pada tahun 2019 dan 2024 Kota Balikpapan tergolong mendekati kritis (50-70%). Sedangkan pada tahun 2029 indek kekritisan air Kota Balikpapan mencapai status kritis (84%). Sehingga perlu adanya upaya konservasi sumberdaya air di Kota Balikpapan. One of the priority problems in Balikpapan is the limited availability of raw water. This is due to the rapid growth of domestic and non-domestic activities in Balikpapan while the Manggar Reservoir as the main source of  water supply is almost close to maximum capacity. The impact that will occur is a decrease in the environmental carrying capacity of Balikpapan. So it is necessary to predict when the availability of water in Balikpapan will reach a critical point. The method used in this study is to calculate the need and availability of water in Balikpapan, then calculate the ratio of water availability and demand to determine the carrying capacity and the water criticality index. The results of the calculation of the Environmental carrying capacity status in this study indicate that the water resources in Balikpapan from 2019 to 2029 are worth between 1-2 so that they are included in the conditional safe category. The calculation of the Water Critical Index  shows that in 2019 and 2024 is approaching critical (50-70%). Meanwhile, in 2029 the water criticality index of Balikpapan will reach critical status (84%). So it is necessary to conserve water resources in Balikpapan. Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/32356 10.14710/presipitasi.v17i3.253-262 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 253-262 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 253-262 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/32356/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/75742 2026-04-21T07:44:25Z presipitasi:RCS

Environmental Communication and Community Empowerment in CSR-based Refuse-Derived Fuel (RDF) Production: A Case Study in Cirebon, Indonesia Afnan, Dikhorir Perwira, Evan Hakeem Irfan, Agus Kamaluddin, Muhammad Alternative fuel; community empowerment; community waste management; refuse-derived fuel; social inclusion; waste valorization Inadequate waste management in rural areas significantly contributes to environmental degradation owing to limited infrastructure and low public awareness. This study addresses a critical gap in RDF research, which has largely emphasized technical feasibility while overlooking social empowerment and institutional challenges. A qualitative case study was conducted in three villages in Cirebon Regency, Indonesia, supported by descriptive quantitative analysis. Data collection included interviews, focus group discussions, field observations, and document reviews, with NVivo software used for coding and triangulation. The findings demonstrate that participatory training, decentralized waste sorting, and incentive-based schemes enhanced household waste behavior and doubled RDF output in 2023. However, persistent gendered inequalities, lack of legal status for waste units, and weak stakeholder coordination undermined long-term sustainability. This study contributes to environmental communication and empowerment scholarship by demonstrating how inclusive governance and institutional reform determine the success of waste-to-energy programs. Practically, the results provide policy guidance for CSR-based initiatives, emphasizing gender equity, participatory monitoring, and transparent financing as prerequisites for sustainable RDF governance. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/75742 10.14710/presipitasi.v23i1.307-320 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 307-320 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 307-320 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/75742/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/1478 2015-11-13T10:02:18Z presipitasi:RVA

PENERAPAN PENGELOLAAN LIMBAH B3 DI PT. TOYOTA MOTOR MANUFACTURING INDONESIA Syafrudin, Syafrudin Environmental Engineering; Environment Limbah Bahan Berbahaya dan Beracun, Pengelolaan Limbah B3, PT. Toyota Motor Manufacturing Indonesia Pada saat ini, industri berkembang pesat dalam hal ragam maupun jumlahnya di Indonesia. Setiap industri mempunyai potensi untuk menimbulkan limbah yang dihasilkan dari proses produksi. Limbah merupakan bahan bahan sisa yang dihasilkan dari suatu kegiatan dan proses produksi, baik pada skala rumah tangga, industri, pertambangan, dan sebagainya. Bentuk limbah tersebut dapat berupa gas dan debu,cair atau padat.  Di antara berbagai jenis limbah ini ada yang  bersifat beracun atau berbahaya  dan  dikenal  sebagai  limbah  Bahan  Berbahaya  dan  Beracun  (Limbah  B3).  PT.  Toyota Motor  Manufacturing  Indonesia  adalah  perusahaan  yang  bergerak  di  bidang  industri  pembuatan komponen/perakitan  kendaraan  bermotor  roda  empat  merk  TOYOTA  serta  perlengkapan  mesin pengolah/pengerjaan logam. PT. Toyota Motor Manufacturing Indonesia menghasilkan limbah yang bersifat  berbahaya  dan  beracun  dari  kegiatan  proses  produksi  dan  dapat  berpotensi  menjadi pencemar bagi lingkungan bila tidak dikelola dengan baik. Limbah B3 yang dihasilkan oleh PT. Toyota Motor  Manufacturing  Indonesia  adalah  sludge  IPAL,  kerak  cat/sludge  painting,  phosphat  sludge, thinner bekas, oli bekas, aki bekas, majun bekas, lampu TL bekas, kemasan bekas B3 (kaleng cat, jerigen, kaleng thinner, drum), abu insinerator, dan limbah poliklinik. PT. Toyota Motor Manufacturing Indonesia  melakukan  manajemen  pengelolaan  limbah  B3  dengan  baik  sehingga  tidak  mencemari lingkungan.  Universitas Diponegoro 2010-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1478 10.14710/presipitasi.v7i2.62-70 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 2 (2010): Vol 7, No 2 (2010); 62-70 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 2 (2010): Vol 7, No 2 (2010); 62-70 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1478/1240

oai:ojs.ejournal.undip.ac.id:article/48462 2023-01-04T02:30:50Z presipitasi:RCS

Differentiated of Batik Dyes and Environmental Effect in The Centre of Batik in Tasikmalaya City and Regency Mutiara, Frista Hernawati, Diana Meylani, Vita Synthetic dyes; natural dyes; batik The most extensive textile export product and one of the nation's cultural legacies is batik cloth. However, regarding environmental quality, West Java's growing demand for batik production results in garbage contaminating the nearby waterways. The type of dye is where the harmful properties of batik waste originate. With descriptive qualitative methodologies and the Miles and Huberman model, this study intends to explain the various types of dyes used by SMEs producing batik in the batik centre region of the City and Tasikmalaya Regency and their impact for environmental health. The findings revealed that small and medium-sized enterprises (SMEs) engaged in the batik industry in Tasikmalaya City (Cipedes) utilized synthetic dyes such as indigosol, reactive Procion and Remazol, dispersion, and direct (mostly monoazo and diazo). In the meantime, batik artisans at the Tasikmalaya Batik Center (also known as Sukapura batik in Sukaraja) work with reactive Procion and Remazol (diazo), indigosol, jolawe fruit peel (Terminalia bellirica), soga jambal bark (Peltophorum pterocarpum), and tingi as natural dyes (Ceriops condolleana). The impact of used the different azo dyes can change the level of pH extremely, also improve the level of BOD, COD, TDS, and heavy metal such as chromium hexavalent ((Cr(VI)) in the waters Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48462 10.14710/presipitasi.v19i3.669-686 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 669-686 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 669-686 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48462/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/12483 2020-04-17T11:32:55Z presipitasi:RSA

OPTIMALISASI PRODUKSI MIX BED DENGAN PENAMBAHAN REAMANING DI PLTGU TAMBAK LOROK SEMARANG Ariyanto, David Handariansah, Handariansah PLTGU Tambak Lorok Semarang merupakan pembangkit combined cycle yang memiliki 6 HRSG (Heat Recovery Steam And Generator) sebagai penghasil uap untuk operasional STG. Untuk itu diperlukan air demin sebagai air penambah dalam jumlah yang banyak guna menghasilkan uap. Raw water yang merupakan hasil dari desalination plant selanjutnya akan diolah ke dalam sistem mixbed. Indikator nilai kerja dari suatu kerja mix bed yaitu remaining. Remaining merupakan nilai total volume air demin yang dihasilkan oleh mix bed. Nilai desain remaining dari mix bed yaitu sebesar 5100, akan tetapi setelah mencapai remaining nol nilaikonduktivity masih menunjukkan nilai < 0,8 µS/cm. Untuk itu diperlukan penambahan remaining untuk semua mix bed, dengan penambahan tersebut akan menambah jumlah produksi dari mix bed sendiri dan tentunya akan mengurangi jumlah regenerasi. Program ini sudah dilaksanakan mulai bulan Oktober 2015 – Juni 2016, dan didapat nilai penambahan jumlah air demin sebesar 54.300 m3. Sedangkan pengurangan limbah B3 sebesar 378.642 liter. Universitas Diponegoro 2016-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/12483 10.14710/presipitasi.v13i2.44-47 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 2 (2016): September 2016; 44-47 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 2 (2016): September 2016; 44-47 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/12483/9424 Copyright (c) 2016 Jurnal Presipitasi https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/61217 2025-05-18T20:39:07Z presipitasi:RCS

Analysis of Greenhouse Gas Emission Load and Emission Reduction from Switching to Electric Vehicles: A Case Study of Java Island Wicaksono, Surya Adi Huboyo, Haryono Setiyo Samadikun, Budi Prasetyo Joyosemito, Ibnu Susanto Teknik Lingkungan Environmental engineering In order to  mitigate the impact of climate change  arising from Greenhouse Gas (GHG) emissions generated from the transportation sector, many countries  including Indonesia, have  initiated to develop policies to encourage environmentally friendly transportation technologies. Electric vehicles  represent a highly sustainable  alternative when compared to conventional vehicles. This study aims to  assess the potential reduction of GHG emissions from the shifting  to electric vehicle utilization on Java Island. The research method was conducted by modeling conventional vehicles until 2033 where there was a transition to electric vehicles throughout the model year and then calculating the GHG emission.  This study employs three scenarios : Business As Usual (BAU), Electric Vehicle Plan (EVP) with existing scenario power plant and Electric Vehicle Plan (EVP) with National Energy Plan (NEP) scenario power plant.  Model results revealed potential GHG emission reductions within 12.11% from the Existing EVP scenario and 12.54% from the NEP scenario against the BAU scenario  due to the shifting usege of electric vehicles on Java island. Based on the model results, it is possible to determine that shifting from conventional vehicles to electric vehicles can reduce GHG emissions from conventional vehicle use. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61217 10.14710/presipitasi.v21i3.773-792 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 773-792 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 773-792 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61217/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39035 2022-02-16T03:26:18Z presipitasi:RCS

Community Perception and Participation of the Forestry Partnership Scheme on PT. Restorasi Ekosistem Indonesia Working Area in Jambi Province Herwindo, Erwin Rosyani, Rosyani Achmad, Eva Ilmu Lingkungan perception; participation; forestry partnership, kulin kk Granting legal access to PT. REKI in ex. PT. The Asialog concession area in 2010 was marked by resistance accompanied by violence and claims by community groups (claimer). Conflict resolution with the Forestry Partnership approach resulted Forestry Partnership Recognition and Protection (Kulin KK) agreements for 79 heads of households who were members of 4 (four) groups. The question of this research is how the perceptions and participation of Kulin KK holders and the relationship between the two variables. The objectives of the study are to analyse the perceptions and participation and the relationship of its variables. This research is descriptive with a quantitative approach. The sampling technique used the census method with many respondents and 75 holders of legal access to Kulin KK. Perception and participation analysis and categorisation use 3 (three) point Likert scale and the score interval equation. The analysis of the relationship between perception and participation variables uses the Spearman correlation analysis. The results showed that the public perception of the provisions of the Forestry Partnership scheme was in the high category of 96% and 4% in the medium category, while the level of community participation was in the high category of 36%, 24% medium and 40% low. Perception and participation are negatively related. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39035 10.14710/presipitasi.v18i2.202-211 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 202-211 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 202-211 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39035/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4932 2013-05-14T23:47:29Z presipitasi:RVA

STUDI PENURUNAN KONSENTRASI NIKEL DAN TEMBAGA PADA LIMBAH CAIR ELEKTROPLATING DENGAN METODE ELEKTROKOAGULASI Samudro, Ganjar Junaidi, Junaidi Environmental Engineering, Environment elektrokoagulasi, nikel, tembaga, limbah elektroplating Limbah cair industri elektroplating mengandung logam berat yang berbahaya sehingga  pengolahan terhadap limbah hasil elektroplating agar dapat diminimalisir dampaknya terhadap lingkungan.Sebagian besar mengolah air limbah mereka berdasarkan coagulantion-floculantion sistem. Hal ini nyaman dalam pengolahan biaya dan jumlah besar lumpur mengakibatkan, terutama untuk yang di industri berbasis logam. Penelitian ini dilakukan untuk menemukan teknologi alternatif baru berdasarkan elektrokoagulasi dan flotasi. Percobaan dilakukan secara batch 1 liter untuk 120 menit, arus searah dari 5 A dan tegangan 3 V pada densitas arus 40, 50, 60, dan 70 mA/cm2 dan Aluminium jenis elektroda dan Iron. From percobaan dapat diperoleh nilai efficiency elektrokoagulasi dari contaminan Ni adalah 95% dan Cu adalah 98% pada kepadatan arus 70mA/cm2 dan waktu procees dari 120 menit. Universitas Diponegoro 2012-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4932 10.14710/presipitasi.v9i2.96-106 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 2 (2012): Vol 9, No 2 (2012); 96-106 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 2 (2012): Vol 9, No 2 (2012); 96-106 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4932/4469

oai:ojs.ejournal.undip.ac.id:article/51155 2023-08-18T02:24:32Z presipitasi:RSA

Removal Efficiency of Total Chrome (Cr-T) from Textile Industry Wastewater PT. X with Sodium Bentonite Using the Adsorption Method Hartati, Etih Nur Azizah, Raisa Marganingrum, Dyah tenik lingkungan Adsorption; atomic absorption spectophotometry; sodium bentonite; total chrome As much as 10-50% of dye wastewater from the dyeing process is discharged directly into the environment. Chromium is the metal most often found in textile industry wastewater, one of which comes from dyes of the Congo Red type, so processing is required. One of the treatments to remove total chromium from textile industry wastewater is adsorption, with sodium bentonite as an adsorbent. This study aimed to determine the optimum efficiency and processing of total chromium using sodium bentonite as an adsorbent with a batch system and to determine the appropriate type of isotherm. The method used to test total chromium was the standard addition method which was then measured using an AAS (Atomic Absorption Spectrophotometry). The variables studied were the effect of wastewater pH, sodium bentonite and grain size of wastewater on the efficiency of total chromium removal. The types of isotherms tested are Langmuir and Freundlich isotherms. In removing total chromium with sodium bentonite, optimum conditions were obtained at pH 8 with a grain size of 80 mesh and a volume of 50% wastewater with a removal efficiency of 98.08%. The appropriate isotherm model for sodium bentonite is the Freundlich isotherm. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51155 10.14710/presipitasi.v20i2.295-304 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 295-304 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 295-304 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51155/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20775 2020-04-17T11:36:06Z presipitasi:RSA

MASTERPLAN SISTEM PENGELOLAAN AIR LIMBAH DOMESTIK DI WILAYAH PERKOTAAN KABUPATEN SUKOHARJO Oktiawan, Wiharyanto Hardyanti, Nurandani Damayanti, Poerborini Teknik Lingkungan air limbah domestik; grey water; Kabupaten Sukoharjo; masterplan Di Indonesia, air limbah domestik merupakan pencemar terbesar yang masuk ke badan air.Pemantauan dan pengendalian air buangan dapat dilakukan salah satunya denganmeningkatkan pelayanan dalam hal sanitasi. Pemerintah menetapkan target terhadap tahun2015-2019 antara lain 100% capaian pelayanan akses air minum, 0% proporsi rumah tanggayang menempati hunian dan permukiman tidak layak (kumuh) di kawasan perkotaan dan 100%capaian pelayanan akses sanitasi. Perencanaan masterplan ini bertujuan untuk menyediakanfasilitas sanitasi yang memadai dalam pengelolaan air limbah domestik terutama di wilayahperkotaan Kabupaten Sukoharjo. Masterplan ini akan mengkaji aspek teknis-teknologis dalamperencanaan pengelolaan air limbah domestik. Pada masterplan ini direncanakan akandibangun 3 buah IPAL skala perkotaan dan 8 buah IPAL skala permukiman besar yang akanmelayani 20% penduduk perkotaan Kabupaten Sukoharjo. IPAL skala perkotaan direncanakanterdapat 2 buah di Kecamatan Grogol dan 1 buah di Kecamatan Kartasura. IPAL skalapermukiman besar direncanakan terletak di Kecamatan Kartasura, Kecamatan Gatak, 2 buah diKecamatan Baki, masing-masing 1 buah di Kecamatan Bendosari, Gatak, Polokarto danKecamatan Sukoharjo. Selain itu, untuk pelayanan sistem setempat direncanakan 3 (tiga)daerah pelayanan IPLT yang dibangun secara bertahap. Tahap pertama yaitu optimalisasi IPLTEksisting (IPLT Mojorejo), tahap kedua yaitu pembangunan IPLT di Desa Bekonang KecamatanMojolaban, dan tahap ketiga pembangunan IPLT di Desa Grajegan Kecamatan Tawangsari.IPLT direncanakan dapat melayani sekitar  70% penduduk perkotaan. Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20775 10.14710/presipitasi.v15i2.69-78 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 69-78 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 69-78 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20775/14077 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/66874 2025-12-04T00:06:38Z presipitasi:RSA

Sustainable Recovery of SiO₂, Al₂O₃, and MgO from Slag, Aluminum Cans, and Bittern Sukma, Vinda Avri Dahlan, Astryd Viandila Sudibyo, Sudibyo Wulandari, Yeni Ria Ramandani, Adityas Agung Teknik Lingkungan Recyling of industrial waste; leaching; SiO₂; Al₂O₃; MgO; sustainable materials This study investigates the utilization of solid waste from slag and aluminum cans as sources of valuable raw materials, along with bittern waste for magnesium oxide (MgO)cons production. Slag, a byproduct of industrial combustion in the palm oil industry, and aluminum cans, generated from human consumption in urban areas, were both subjected to leaching processes to recover silica (SiO₂) and alumina (Al₂O₃), respectively. The leaching of slag using 4 M NaOH yielded 85.68% SiO₂, while aluminum cans treated with 4 M HCl produced 85.90% Al₂O₃. Additionally, the study extracted MgO from bittern waste via precipitation, resulting in 76.98% MgO. X-ray fluorescence (XRF) analysis was employed used to determine the composition of the slag, aluminum can waste, and bittern, while X-ray diffraction (XRD) analysis confirmed the crystallinity of the recovered materials. The integration of recycled materials into the production of cordierite ceramics represents an innovative approach to waste valorization, offering potential for the development of advanced materials from industrial and urban waste. This research highlights the potential for valorizing industrial and municipal solid wastes through chemical processes, contributing to sustainable resource recovery and environmental conservation. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66874 10.14710/presipitasi.v22i1.47-58 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 47-58 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 47-58 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66874/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/66874/17669 Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/43170 2022-02-19T00:21:43Z presipitasi:RVA

A Critical Review of Acid Mine Drainage Treatment Wibowo, Yudha Gusti Fadhilah, Rahmat Syarifuddin, Hutwan Maryani, Anis Tatik Putri, Intan Andriani Ilmu Lingkungan Acid mine drainage; acid mine drainage treatment; active treatment; passive treatment Acid mine drainage has been reported to cause various environmental and human health problems. Acid mine drainage is formed due to the oxidation of sulfide minerals to water and air. This paper reports the efforts that have been made in the management and treatment of acid mine drainage. Thirty papers from reputable publishers are used as references. Efforts to prevent the formation of acid mine drainage can be made by making proper drainage and dewatering systems, making non-acid formations for rocks that have the potential to be oxidized. Active and passive treatment methods can be used to treat acid mine drainage. The active treatment method uses materials and chemicals to reduce pollutant parameters, while the passive method utilizes natural processes to reduce pollutant parameters in acid mine drainage. The combination of active and passive methods using novel materials that have been researched is recommended to produce the best system that can thoroughly remove pollutants in acid mine drainage. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/43170 10.14710/presipitasi.v18i3.524-535 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 524-535 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 524-535 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/43170/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10953 2016-05-04T09:08:33Z presipitasi:RVA

STUDI KELAYAKAN INSTALASI PENGOLAHAN LUMPUR TINJA KOTA SALATIGA Nasrullah, Nasrullah Environmental Engineering Faecal sludge, stabilization basin, environmental sanitation, draining. Salatiga’s Faecal Sludge Treatment Installation is used for the treatment of faecal sludge which is collected from  the  septic  tank  before  it’s  discarded  to  the  environment.  The  purpose  is  to improve  the municipal  sanitation  health  condition.  Based  on  the  local  health  department  of Salatiga  in  2005, 79%  Salatiga’s  resident  has  using  septic  tank  facilities.  The  Faecal  Sludge Treatment was planned for the next 20 years with the capacity of 6 m3/day and supported by stabilization system basin. The feasibility study is conducted to determine weather the Faecal Sludge  Treatment  Installation  is  suitable or  not.  Some  aspects  such  as  financial,  social, economics  and  technical  aspect  are  important  to be  considered.    The  investment  cost  to establish  this  installation  is  IDR  722.207.600  (tax included).  From  the  investment  planning evaluation  report,  FSTI  is  not  supported  financially because  the  period  payback  had unreachable to the end of planning session, the internal rate of return hadn’t achieved to the lowest rate of interest and the benefit cost ratio is lower than 1 which is 0,98. However the FSTI still  can  be  operated  because  the  other  aspects  are  still  support  the  FSTI construction  plan, which is technical, social, economic and regulation aspects. Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10953 10.14710/presipitasi.v3i2.16-24 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 16-24 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 16-24 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10953/8644

oai:ojs.ejournal.undip.ac.id:article/57318 2024-06-14T22:00:52Z presipitasi:RSA

The Effect of Addition EM4 Solution on Vermicomposting Fish Waste to Increase CNPK Regosol Soil Setiani, Vivin Dewi, Tanti Utami Nindyapuspa, Ayu Kristina, Dinda Maya Devi, Yesica Novrita Teknik Pengolahan Limbah Vermicomposting; fish waste; vegetable waste; sawdust; regosol soil The Environmental Service Surabaya noted that waste generation at Benowo Landfill reached 1,600 tons/day. 60% of waste generation at Benowo Landfill was dominated by organic waste. One of organic waste was fish waste, vegetable waste, and some waste from household business activities such as sawdust. One of method composting to reduce organic waste is vermicomposting. Lumbricus rubellus is a type of worm that eats leaf litter so, it is suitable to be used decompose organic waste. The adding of EM4 solution can make more fast of composting process. The compost could be applied in regosol soil to improve soil CNPK quality. The purpose of this study was to analyze the effect of EM4 variations on the quality of compost based on SNI 19-7030-2004 and the effect of adding the compost to regosol soil. The research result showed that the quality of compost complies with SNI 19-7030-2004. The statistical analysis showed that EM4 has a significantly effect on compost quality and regosol soil improvement. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57318 10.14710/presipitasi.v20i3.713-726 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 713-726 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 713-726 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57318/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/57318/14240 Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/25103 2020-08-30T23:24:03Z presipitasi:RSA

Utilization of Clay and Bamboo Charcoal Biosorbent Composites in Reducing the Dyes Concentration in Batik Industry Wastewater Pemanfaatan Komposit Biosorben Tanah Liat dan Arang Bambu dalam Mengurangi Kandungan Zat Warna pada Limbah Cair Industri Batik Tamyiz, Muchammad Hidayah, Natasya Nur Salsabella, Aulianita Maulidiyah, Takrimatul Teknik Lingkungan Bamboo Charcoal; Composite; Clay; Remazol Teknik Lingkungan arang bambu; komposit; tanah liat; remazol The batik industry in Indonesia is one of the small and medium business sectors (SMEs) which is a source of work for some people. The batik industry produces various kinds of liquid waste, one of which is dyes including remazol dyes. In this research, clay and bamboo charcoal which are activated by HCl 1 M were made into a composite biosorbent with a ratio of clay and bamboo charcoal (80%: 20%). In this study, two variables are used, namely dose and contact time variation. The results of removal efficiency for variable adsorbent doses and contact time respectively were 30.00% and 31.33%. FTIR spectrum analysis shows wave numbers 1338.64 and 1309.71 cm-1 which is the C-H bending region. The peak at wave number 1539.25 cm-1 with strong and tapered absorption is identified as aliphatic C-C strains which are functional groups of activated charcoal. The spectrum gives a clay-charcoal composite specification when the absorption peak at wave number 3462.34 cm-1 there is an interaction between O-H in clay and O-H in charcoal, causing an increase in absorption intensity. The use of clay and bamboo charcoal biosorbent can reduce levels of dyes in batik industry liquid waste. The batik industry in Indonesia is one of the small and medium business sectors (SMEs) which is a source of work for some people. The batik industry produces various kinds of liquid waste, one of which is dyes including remazol dyes. In this research, clay and bamboo charcoal which are activated by HCl 1 M were made into a composite biosorbent with a ratio of clay and bamboo charcoal (80%: 20%). In this study, two variables are used, namely dose and contact time variation. The results of removal efficiency for variable adsorbent doses and contact time respectively were 30.00% and 31.33%. FTIR spectrum analysis shows wave numbers 1338.64 and 1309.71 cm-1 which is the C-H bending region. The peak at wave number 1539.25 cm-1 with strong and tapered absorption is identified as aliphatic C-C strains which are functional groups of activated charcoal. The spectrum gives a clay-charcoal composite specification when the absorption peak at wave number 3462.34 cm-1 there is an interaction between O-H in clay and O-H in charcoal, causing an increase in absorption intensity. The use of clay and bamboo charcoal biosorbent can reduce levels of dyes in batik industry liquid waste. Universitas Diponegoro 2019-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/25103 10.14710/presipitasi.v16i3.152-159 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 152-159 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 152-159 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/25103/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/58587 2025-12-04T00:06:42Z presipitasi:RCS

Environmental Factors Associated with Pulmonary Tuberculosis in Martapura’s Primary Health Center Rosadi, Dian Lasari, Hadrianti Haji Darise Tazkiah, Misna Fadillah, Ahmad Sepira, Yuli Maulidah, Siti Kesehatan Masyarakat Pulmonary Tuberculosis; Air Holes; floor type; lighting Pulmonary TB continues to be a health problem as it is the leading cause of death and ranks 10th in the world. The number of TB cases in South Kalimantan Province reached 5,636. Based on district/city, the highest number of TB cases was in Banjarmasin City with 868 cases, followed by Banjar Regency with 817 cases and Banjarbaru City with 483 cases, while the lowest number was in Balangan Regency with 187 cases. The purpose of this study was to analyse the relationship between ventilation, floor type and lighting with the incidence of pulmonary tuberculosis in the working area of Martapura 1 primary health center, Banjar Regency. This study was an observational analytical study with a case-control design approach. The study population consisted of 90 respondents, 30 people as cases and 60 people as controls. There was an association between ventilation (p-value = 0.03, OR 95% CI 4.5) and the incidence of pulmonary TB. Floor type (p-value = 0.211) and lighting (p-value = 0.577) were not associated with the incidence of pulmonary TB in Martapura 1 Health Centre. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58587 10.14710/presipitasi.v22i2.476-484 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 476-484 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 476-484 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58587/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42960 2023-03-29T21:11:54Z presipitasi:RSA

Analysis on Waste to Energy Potential of Padang Municipal Solid Waste for Sustainable Future Raharjo, Slamet Ariska, Zagita Andriani Teknik Lingkungan Electrical energy; incineration technology; municipal waste; waste generation; waste to energy Reduce, reuse, recycle (3R), and recovery are types of waste processing regulated in Law No. 18 of 2008. One form of recovery is Waste to Energy (WtE) which is one of the national development priorities. Currently, the implementation of 3R is less than 5% and it has not been implemented at all in Padang City. Therefore, this current research studies the WtE potential of Padang municipal solid waste. The research was conducted by collecting data on the population of Padang City, the generation, composition, and recycling potential of Padang City waste, and the calorific value of each waste composition. This research applies thermal incineration technology with three variations of scenarios. Scenario #1 is a WtE application with 3R based on existing conditions, scenario #2 is a WtE application with 3R based on government targets, and scenario #3 is a WtE application with 3R based on the results of the questionnaire. Scenario #2 is the best one because it considers the WtE idea and community-based 3R recycling in line and continues for better waste management in Padang City. The scenario may produce 394.23 MW of electricity that can serve around 1,329 houses, while also improving the 3R rate of around 1.98% per year. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42960 10.14710/presipitasi.v19i2.280-289 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 280-289 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 280-289 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42960/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/54055 2025-05-18T20:36:13Z presipitasi:RCS

Phytoplankton Diversity as Bioindicator of Water Quality in Mangrove Area of Surabaya East Coast Hendrasarie, Novirina Kartika, Sucahyaning Wahyu Trihastika Teknik Lingkungan Phytoplankton; bioindicator; pollution; mangrove area Mangrove forests in Surabaya's estuaries and coastal areas are designated by the government as protected areas. However, in the last decade, water pollution in the estuary and coastal areas of Surabaya has increased. This is due to rivers and tributaries that lead to the estuary carrying garbage and waste, as a result the waters in the mangrove area began to be polluted. The purpose of this study was to map water pollution in the Mangrove area, using the plankton diversity index. This diversity is based on the sensitivity of plankton, so it is used as a bioindicator of water pollution. This study, conducted in the estuary and along the East Coast of Surabaya. The results showed 70% of phytoplankton abundance in Wonorejo Mangrove is influenced by the value of COD, TSS, salinity, and phosphate. The estuary and coastal Mangrove Gunung Anyar 92% is influenced by the parameter values of temperature, COD, current strength, and salinity. Bacillariophyceae and Coscinodiscophyceae were the dominant phytoplankton in the Wonorejo and Gunung Anyar mangrove areas, respectively. The dominance of these two plankton, which were able to survive, indicates that the water quality in the Wonorejo and Gunung Anyar estuaries is polluted. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54055 10.14710/presipitasi.v21i1.237-248 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 237-248 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 237-248 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54055/xml Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/29474 2020-12-16T21:04:21Z presipitasi:RSA

Penentuan Koefisien Reaerasi Sungai Bedadung Hilir Metode Perubahan Defisit Oksigen (Studi Kasus di Kecamatan Balung, Jember) Determination of Reaeration Coefficient of Bedadung Hilir River Oxygen Deficit Change Method (Case Study in Balung District, Jember Wahyuningsih, Sri Dharmawan, Agus Imamah, Imamah Teknik Lingkungan, Manajemen Sumberdaya Air defisit oksigen; DO; koefisien re-aerasi Oksigen terlarut (DO) merupakan parameter yang menentukan kesehatan perairan sungai. Suplai oksigen terlarut di perairan harus dapat terjaga untuk menunjang kehidupan organisme air. Suplai oksigen terlarut diperoleh dari pertukaran oksigen dari atmosfer ke badan air. Tujuan penelitian ini adalah untuk mengetahui besar koefisien reaerasi (penambahan oksigen) Sungai Bedadung bagian hilir menggunakan pendekatan perubahan DO. Pendekatan ini menggunakan model laju transfer massa oksigen dari atmosfer ke badan air. Data primer diperoleh dari pengukuran profil hidraulik, temperatur, dan DO sungai di tiga titik pantau Sungai Bedadung bagian hilir segmen Kecamatan Balung, Kabupaten Jember. Hasil menunjukkan nilai KR di tiga titik pantau masing-masing 36,084; 47,397; dan 83.114/hari dan cenderung naik. Besar KR ditentukan dari defisit oksigen dan waktu tempuh pengaliran air sungai. Rata-rata nilai KR Sungai Bedadung adalah 55,532/hari.  Nilai KR yang tinggi menunjukkan kemampuan sungai yang mampu mensuplai oksigen secara alami. Dissolved Oxygen (DO) is one of the most important parameters reflecting the ecological health of the river. DO supply must be maintained to support the life of aquatic organisms. DO supply obtained by oxygen transfer from the atmosphere to water. This research aimed to determine reaeration (continuous addition of oxygen) coefficients (KR) of Bedadung Downstream using the exchange of DO deficit. This approach uses the rate of mass transfer of oxygen from the air to the river water. The raw data was obtained by measuring stream-flow, temperature, and DO at three observed stations segment Balung district, Jember. The result showed the values of the reaeration coefficient (3 stations) were 36,084, 47,397, and 83,114 /day sequentially and tended to line up. The amount of KR obtained from the oxygen deficit and travel time of river water. The average KR was 55.532/day. High KR values indicate the ability of rivers that can supply oxygen naturally. Universitas Diponegoro 2020-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29474 10.14710/presipitasi.v17i2.169-176 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 169-176 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 169-176 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29474/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/73098 2026-04-21T07:44:25Z presipitasi:RSA

Evaluation of Bio-Drying Cow Dung with Inoculation of Bacillus sp. as Refuse Derived Fuel (RDF) Material Febriantoko, Ardiansah Jayanegara, Anuraga Sholeha, Novia Amalia A'yuni, Qurrota Environmental Bacillus sp.; bio-drying; cow dung biomass; RDF; thermophilic bacteria; waste to energy Global warming, driven in part by livestock manure emissions, poses a major environmental challenge. Refuse Derived Fuel (RDF) offers a waste-to-energy solution by converting solid cow manure into an energy source. This study investigated the impact of Bacillus sp. inoculation on the biodrying process of cow dung. The main challenge in processing cow manure into RDF is ensuring that the moisture content and calorific value meet the minimum RDF standards. Therefore, a biodrying process was carried out on cow manure to achieve these required standards. Biodrying performance was assessed based on drying time, moisture content, pH, and calorific value. The results show that inoculation with Bacillus sp.. The results showed that inoculation with Bacillus sp. at 10⁶ log cfu ml⁻¹ kg⁻¹ yielded the most efficient outcome, achieving the fastest drying time (12 days), lowest moisture content (9.64%), optimal pH (7.8), and highest calorific value (2,656.5 kcal/kg). These findings confirm a direct link between moisture reduction and calorific improvement. Hence, bio-dried cow dung treated with inoculation of Bacillus sp. 106 log cfu ml-1 Kg-1 is recommended as a viable RDF material. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/73098 10.14710/presipitasi.v23i1.15-25 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 15-25 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 15-25 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/73098/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/47409 2023-01-04T02:30:50Z presipitasi:RCS

Study of Rainwater Potential as Raw Water Source for Campus Mosque at Engineering Faculty of Tanjungpura University Kadaria, Ulli Teknik Lingkungan; Teknologi dan Rekayasa Lingkungan; Air Bersih Clean water; Rainwater; Water Harvesting Mosques need water in sufficient quantities for ablution, usually the mosques use surface water from PDAM services and well water. Surface water and ground water have decreased in quantity and quality, so it is necessary to find alternative sources of water to meet the clean water demand. On the other hand, the potential for rainwater is neglected, rainwater that falls is left to flow. Pontianak is one of the cities crossed by the equator which has high rainfall, the method of harvesting rainwater is appropriate in the tropics. This research was located on campus mosque at Engineering Faculty of Tanjungpura University. The purpose of this study was to determine the water demand in mosque and identify the potential for rainwater to meet the clean water demand in mosque. The method used in this research is field survey to calculate the water demand and interview with the mosque management to obtain supporting data. Based on the calculation, the total of water demand in mosque is 60 m3/month or 2 m3/day, while the volume of rainwater in campus mosque at Engineering Faculty of Tanjungpura University is 61.258 m3/day, and the potential volume of rainwater each month can meet the clean water demand. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47409 10.14710/presipitasi.v19i3.477-486 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 477-486 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 477-486 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47409/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11016 2016-05-05T01:28:38Z presipitasi:RVA

STUDI ASPEK RETRIBUSI, KELEMBAGAAN, HUKUM DAN PERAN SERTA MASYARAKAT DALAM PENGELOLAAN PERSAMPAHAN BERBASIS MASYARAKAT (STUDI KASUS KELURAHAN KROBOKAN KECAMATAN SEMARANG BARAT) Budihardjo, Mochamad Arief Environmental Engineering Solid waste management, retribution, organizational law, community participation . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11016 10.14710/presipitasi.v5i2.82-89 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 82-89 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 82-89 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11016/8700

oai:ojs.ejournal.undip.ac.id:article/66685 2025-05-18T20:39:07Z presipitasi:RCS

Delineation of Irrigation Network Performance in Subak in South Denpasar District, Bali Province Ardana, Putu Doddy Heka Pamungkas, Tri Hayatining Agustin, Elin Alviana Syamsunur, Defrizon Civil Engineering Land conversion; spatial analysis; irrigation network performance; geographic information system; subak Massive conversion of agricultural land into built-up land occurred in South Denpasar District. These changes impacted the decline in rice production by 5.5% in 2023 and a decrease in the performance of the irrigation network. This study employs GIS to assess the efficacy of irrigation networks to enhance sustainable agriculture, community food security, and irrigation and subak network systems in South Denpasar. This study used spatial analysis to create an irrigation network performance map. Data analysis interprets primary data based on field observation to assess the irrigation network's physical condition. The irrigation network is divided into four levels: good, slightly damaged, medium damaged, and badly damaged. The study indicated that Subak Sesetan disintegrated since it was thought to have turned into a village. The land conversion reduced the 292.593 Ha of subak (Kerdung, Cuculan, Kepaon, and Sesetan) to 186.314 Ha, or 36.32%. The length of irrigation canals was 16.901 Km, with good conditions along 16.67 Km or 98.61%, slightly damaged conditions along 0.051 Km or 0.3%, and moderately damaged conditions along 0.1842 Km or 1.09%. This research should help South Denpasar District stakeholders decide on land-use change strategies and rehabilitation or irrigation network development priorities. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66685 10.14710/presipitasi.v21i3.936-949 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 936-949 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 936-949 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66685/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/36456 2022-02-16T03:29:41Z presipitasi:RSA

Analysis of Chemical Properties and Heavy Metals from Cisadane River, Tangerang, Indonesia Rosarina, Desy Laksanawati, Ellysa Kusuma Rosanti, Dewi Teknik Lingkungan water quality standard, cisadane river, chemical properties, heavy metals This paper explained heavy metals and chemical properties from the Cisadane River in Tangerang City. A survey method was used to determine the place for sampling the test material. Water measurement is carried out in situ and laboratory tests. Data retrieval was done by purposive sampling determining three observation stations, namely in the Taman Gajah Tunggal park area (station1), Babakan Cikokol residential area (station 2), and Karawaci paper mill area (station 3). The analysis was carried out exactly using analysis. Namely, analysis carried out in the laboratory. The parameters observed were COD, phosphate, DO, BOD, pH. Results of this study informed the water quality in the Cisadane City river did not meet Class II Water Quality Standards based on Government Regulation Number 82, the year 2001. The COD content only meets class II water quality standards at stations 1 and 3. BOD and phosphate content is high and exceeds class II water quality standards. Heavy metal content still meets the water quality standard threshold with a value of Cd less than 0.01 mg/L, Cu less than 0.02 mg/L, Pb less than 0.03mg/L, and Cr less than 0.05mg/L. Zn content exceeds the water quality standard threshold at station three and meets water quality standards at stations 1 and 2 with a value of less than 0.05mg/L. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36456 10.14710/presipitasi.v18i1.81-87 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 81-87 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 81-87 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36456/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4809 2013-05-14T23:21:12Z presipitasi:RVA

PENGARUH KONDISI SISTEM DRAINASE, PERSAMPAHAN DAN AIR LIMBAH TERHADAP KUALITAS LINGKUNGAN (Studi kasus Kelurahan Kuningan Kecamatan Semarang Utara) Oktiawan, Wiharyanto Amalia, Setia Environmental Engineering; Environment drainage system, solid waste, waste water, enviromental quality, people healthy,Kelurahan Kuningan Kelurahan Kuningan in the district of north Semarang meet with enviromental quality and people’s healthy degree decrease cause by poor drainage system, solid waste and waste water management. This  case  had  been  caused  several  disease  that  disturb  people’s  healthy.  The  purposes  of  this research was  to  know  the  existing condition  of drainage  system, solid  waste and waste  water in KelurahanKuningan, to know the influence of existing condition into enviromental quality and people’s healthy, to give an overcoming solution connected with PenyehatanLingkunganPemukiman program that  points  on  people  in  this  development  area.  Method  used  in  this  research  is  observation, questionaire and  interview, BOD concentration measurement  in drainage line and secondary  data collection include institution aspect, operational, financial, law and also people’s role. Results of this research show that BOD concentration in tertiary, secondary and primary drainage line is over from PP No.82 tahun 2001. Calculation results show the available pump is not enough to take the water debit from domestic rain that accumulated with domestic waste water, plus when the flood tide and flood from the higher area. The condition is getting worse by stucking trash in line that causing disease and  become  sediment.  Waste  water  distribution  system  in  this  area  is  not  appropriate  with  high density population and also public MCK as sanitation place is careless. That case caused the unclean enviromental and people have to expend extra money to take the medicine and to buy clean water. The  recommended  overcoming  solutions  are  formating the  pumping  team  and  public  MCK  team management,  increasing  pumping  capasity,  maintenance  budget,  exploiting  the  sediment,  3R program, waste water distribution system with communal system and public MCK fixed up. Universitas Diponegoro 2012-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4809 10.14710/presipitasi.v9i1.41-50 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 1 (2012): Vol 9, No 1 (2012); 41-50 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 1 (2012): Vol 9, No 1 (2012); 41-50 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4809/4359

oai:ojs.ejournal.undip.ac.id:article/50984 2023-04-08T21:36:46Z presipitasi:RCS

Wastewater Treatment Plant Design for Batik Wastewater with Off-Site System Method in Ulu Gedong Sub-District, Jambi City Purwaningrum, Solikhati Indah Syarifuddin, Huwan Nizori, Addion Wibowo, Yudha Gusti Teknik Lingkungan Batik wastewater; WWTP; off-site system Batik is a cultural heritage of Indonesia in the form of textile crafts. The batik industry uses a lot of dyes that cause environmental pollution. The study results showed that Artisanal Small Scale Industry batik has yet to perform batik wastewater management to a technical standard. Design planning for batik wastewater management considers the conditions of wastewater discharge, dyes, characteristics of wastewater, the location to be served, and the location of Waste Water Treatment Plant. The design of the batik Waste Water Treatment Plant building is an equalization unit with dimensions of 4.6 m long, 2.3 m wide, and 4 m high, an anaerobic unit with dimensions of 10.5 m long, 4 m wide and 3.5 m high, a filtration unit with a diameter of 8 inches, 40 inches tall, control tub with dimensions of length 8 m, width 4 m, and height 3.5 m, and sludge drying bed with dimensions of length 15 m, width 15 m and height 1 m. The processing unit obtained water pollutant concentrations in the processed wastewater of 2.426 mg/L BOD, 0.543 mg/L of COD, and 0.0115 mg/L of TSS. This concentration shows that the WWTP design optimally reduce the pollutants in batik wastewater. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50984 10.14710/presipitasi.v20i1.153-164 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 153-164 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 153-164 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50984/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/16919 2020-04-17T11:35:40Z presipitasi:RSA

Kajian Dampak Rencana Pembangunan Kawasan Wisata Marina di Pesisir Kabupaten Belitung terhadap Kualitas Lingkungan Sekitarnya Wibowo, Mardi Lingkungan; pelabuhan dampak lingkungan; kawasan marina; upaya pengelolan; upaya pemantauan Pada dasarnya semua kegiatan pembangunan khususnya di kawasan pesisir akan menimbulkan perubahan terhadap lingkungan sekitarnya baik yang positif maupun negatif. Tidak terkecuali rencana pembangunan kawasan marina di pantai Tanjungpendam Kabupaten Belitung pasti akan menimbulkan dampak terhadap kualitas lingkungan perairan di sekitarnya. Metode yang dipakai dalam kajian ini adalah kompilasi dan analisis data sekunder, melakukan tinjauan dan observasi lapangan, analisis data sekunder yang ada, analisis desain kawasan marina yang akan dibangun, memperkirakan dampak  lingkungan serta menyusun usulan untuk pengelolaan dan pemantauan dampak yang mungkin terjadi. Pada tahap konstruksi dan operasional kawasan marina, dampak terhadap lingkungan yang mungkin terjadi adalah menurunnya kualitas perairan laut, kualitas udara, terjadinya perubahan pola arus, abrasi dan sedimentasi serta terganggunya kehidupan biota yang ada di sekitar dermaga. Dampak-dampak lingkungan yang ditimbulkan umumnya dikategorikan sebagai dampak negatif dan bersifat terus menerus. Untuk meminimalisir dampak negatif yang mungkin timbul diperlukan adanya upaya pengelolaan lingkungan dan upaya pemantauan lingkungan. Universitas Diponegoro Balai Teknologi Infrstruktur Pelabuhan dan DinamikaPantai – BPPT 2018-03-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16919 10.14710/presipitasi.v15i1.11-24 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 11-24 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 11-24 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16919/pdf Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/66526 2025-12-04T00:06:38Z presipitasi:RCS

Impact of Electric Vehicle Transition Scenarios on Road Transport Emission in Semarang City Pratiwi, Ningsih Ika Suherman, Suherman Yulianto, Bambang Amin, Muhammad Ilmu Lingkungan electric vehicle; emission forecast; GWP100; LEAP The transition from fossil-fueled vehicles into electric vehicles is considered to be a strategy that can significantly reduce emissions and improve urban air quality. This study aims to examine the impact of the battery electric vehicles growth in Semarang City on carbon emissions within the road transport sector. Projections were made to assess the long-term impact and contribution of this trend towards meeting government targets in 2030 and 2060. Low Emission Analysis Platform (LEAP) software was used to estimate carbon emissions based on amount of vehicle and vehicle kilometer traveled (VKT) data. Three scenarios were set: the BEV scenario, which focuses on the widespread use of electric vehicles, demonstrates a significant reduction, especially in PM10 emissions, highlighting the advantages of transitioning away from internal combustion engine vehicles. The EMX scenario, which emphasizes an energy mix plan to support electricity, does not demonstrate a significant reduction in emissions. The COM scenario, which combine the BEV and EMX scenarios achieves the lowest emissions overall, indicating that a comprehensive strategy is most effective for achieving long-term emission reductions. All scenarios indicate the need for more aggressive policies, technological innovations, and carbon capture strategies to achieve reduction targets, particularly in the road transport sector. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66526 10.14710/presipitasi.v22i1.301-313 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 301-313 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 301-313 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/66526/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42121 2022-02-19T00:21:43Z presipitasi:RSA

Electrocoagulation Method Using Al/Graphite Electrode for Removal Surfactant LAS (Linear Alkylbenzene Sulfonate) Khairunisa, Nafisa Suhartana, Suhartana Bima, Damar Nurwahyu Electrocoagulation; Al/graphite Elecerode; linear alkylbenzene sulfonate; surfactant An increasing number of laundries have caused water contamination by surfactants. One commonly used surfactant is LAS (Linear Alkylbenzene Sulfonate), a material difficult to decompose, polluting the environment. Electrocoagulation was carried out using Al/Graphite electrode, applied to LAS surfactant artistic waste. This study aims to determine the functional ability of the Al/Graphite electrode in reducing surfactant through electrocoagulation. Various variations were carried out, on the voltage parameters (3,6,9,12) Volt; NaCl concentration (0;0.4;0.8;1.2;1.6;2) g/L; pH (3,5,7,9,11) and time (10,20,30,40,50) minutes. To analyze the changes in the sample before and after electrocoagulation, characterization was carried out using a UV-VIS spectrophotometer and FTIR. A kinetic study was conducted to determine the reaction order of electrocoagulation surfactant. Based on a study, removal at condition voltage 9 Volt, initial pH of the solution 9, electrocoagulation time 50 minute, and the addition of NaCl electrolyte 2 g/L, obtained surfactant concentration was 0,785 mg/L with removal efficiency 97,45%. UV-VIS spectra show a decreased absorption at a wavelength of 653 nm. FTIR spectra showed the presence of absorption on the same functional groups, which indicated that most of the surfactant pollutants could be separated from the wastewater through the electrocoagulation process. The second-order reaction was obtained in the surfactant electrocoagulation process. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42121 10.14710/presipitasi.v18i3.443-452 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 443-452 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 443-452 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42121/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10944 2016-05-03T20:09:45Z presipitasi:RVA

DAMPAK PERTIMBANGAN EKONOMIS TERHADAP TATA RUANG KOTA JAKARTA DAN BOPUNJUR Samadikun, Budi Prasetyo Environmental Engineering changing of urban planology, coastal reclamation, economic consideration, Jakarta, Bopunjur The  uncontrollable  urban  growth  become  serious  implication  to  the  environment  and urban economy. Jakarta as a capital city of Indonesia has growing significantly from metropolitan to megapolitan  city.  This  growth  also  followed  by  environment  degradation,  which  caused  by changing of  urban planology that doesn’t match with the policy of the last government. Jakarta coastal reclamation  and  the  changing  of  Bopunjur’s  (Bogor,  Puncak,  Cianjur)  function  as  a conservation area are the real evidence, that have occured some colaboration and co-operation  between  government as  a  policy  maker  and  contractor  as  a  constructor.  The  priority  of economic consideration by all stakeholders make environment become “dying”  from day to day. Universitas Diponegoro 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10944 10.14710/presipitasi.v2i1.34-38 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 34-38 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 34-38 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10944/8635

oai:ojs.ejournal.undip.ac.id:article/56756 2024-06-14T22:00:52Z presipitasi:RCS

Plastic Management on the Kelapa Island, Indonesia: Analysis of Community Perception and Participation Hidayat Ramli Inaku, Awaluddin Hadiyanto, Hadiyanto Rya Abdurachim, Henna Hawali Abdul Matin, Hashfi Community participation; community perception; kelapa island; plastic waste management; plastic pollution Plastic waste is a substance that is no longer used and contains certain elastic materials that require heat energy to decompose. Plastic waste has a longer time to decompose, which is about 20 to 100 years. The purpose of this study is to identify public perception and participation in plastic waste management, analyze the relationship between internal and external factors and perceptions of plastic waste management, and analyze the relationship between public perception and participation in plastic waste management. The research was conducted through explanatory research with a cross-sectional design. The population in this study is the people of Kelapa Island, Seribu Islands, DKI Jakarta with a sample of 300 respondents. The results showed that there was a relationship between knowledge (p-value = 0.001) and the role of government/community leaders (p-value = 0.002) with perceptions of plastic waste management. There is a relationship between public perception and participation in plastic waste management (p-value = 0.000). The conclusion shows that the perception of the community as a whole is positive and community participation in the management of plastic waste is already high. It is hoped that the programs that have been successfully implemented need to be maintained, improved, and monitored regularly. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56756 10.14710/presipitasi.v20i3.612-620 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 612-620 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 612-620 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56756/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/23236 2020-04-17T11:38:33Z presipitasi:RSA

Penerangan Jalan Umum Tenaga Surya: Studi Kasus di Kota Pangkalpinang Febrianto, Andika Sunanda, Wahri Gusa, Rika Favoria Teknik Elektro, Energi Terbarukan public street lighting planning, public street lighting photovoltaic, Indonesia’s National Standart This research was conducted to design public street lighting photovoltaic, based on SNI 7391:2008 concerning specifications of public street lighting in urban areas with several parameters that were considered by poles, lights used, intensity of light needed, number of lights needed and supporting equipment for public street lighting photovoltaic. Currently, Jenderal Sudirman road in the city of Pangkalpinang along 1.5 km uses electricity from PLN with 30 units of 150 watt SON lamps and 11 lux light intensity. The design obtained for street lighting photovoltaic while still meet SNI for light intensity, obtained supporting equipment for solar street lighting, namely 31 unit of 8 meter octagonal poles with specifications of 40 watt LED lights for each cross arm, 1 unit of 100 Wp solar panels, unit of 100 Ah VRLA batteries and 1 unit of solar charger controller (10A, 12V / 24V). Universitas Diponegoro 2019-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/23236 10.14710/presipitasi.v16i2.76-82 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 76-82 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 76-82 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/23236/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/69876 2025-12-04T00:06:42Z presipitasi:RCS

Analysis of Heavy Metals Pb and Mn in River Water at Putri Cempo Landfill Matin, Hashfi Hawali Abdul Setyono, Prabang Dzihni, Asfi Adiningsih, Aulia Rahmatya Agustina, Aulia Tsalatsa Rahmadhani, Sakina Enova Al-Dzahabi, Muhammad Adib Kencanawardhani, Larasati Gumilang Heavy metals; lead (Pb); manganese (Mn); river; Putri Cempo landfill Waste is a crucial issue with far-reaching impacts on the environment, public health, and economy. The Putri Cempo landfill receives waste from Surakarta City. Waste can pollute the river near the landfill, given the location of the river that adjoins and is close to residential areas. The purpose of this research was to analyze the river water quality around the Putri Cempo landfill for heavy metals Pb and Mn. The research was conducted by taking samples directly from the river and then analyzing the heavy metal content. The results were compared with river water quality standards according to Indonesian Government Regulation 22/2021. The results showed that the Pb content in river was -0.02392344 mg/L and Mn was 4.206021703 mg/L. From these results, the Pb content in the river did not exceed the quality standard limit, whereas the Mn content exceeded the quality standard limit. It can be concluded that the river water around Putri Cempo landfill has been contaminated with Mn. Heavy metals in high levels can harm living things and the environment, can cause death to aquatic biota and plants, disease in humans, degrade water quality and damage river aesthetics. Further evaluation of stakeholders is required to address heavy metal pollution Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69876 10.14710/presipitasi.v22i2.600-609 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 600-609 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 600-609 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69876/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/50214 2023-04-08T21:36:46Z presipitasi:RCS

Organic Solid Waste Management by Producing Eco-Enzymes from Fruit Skin in Permata Tembalang Samadikun, Budi Prasetyo Sudarno, Sudarno Pusparizkita, Yustina Metanoia Hardyanti, Nurandani Pratama, Fathan Syahreza Safitri, Rahayu Puji Teknik Lingkungan; Manajemen Lingkungan; Ilmu Lingkungan; Waste; organic; recycle; eco-enzyme The Ministry of Environment and Forestry in 2020 estimates that waste dumps in Indonesia will be 67.8 million tons. However, organic waste management in Indonesia is still relatively low. The accumulation of organic waste in the landfill, which usually causes unpleasant odors and potentially cause an explosion due to the production of methane gas from natural decomposition processes, can be avoided by prioritizing waste management from the source. An alternative way to handle organic waste is make eco-enzymes because it is efficient, economical, and environmentally friendly. This is the focus of the community service team. The community service method is carried out in three stages, including the preparation stage, the implementation stage, and the final stage. The preparation stage consists of doing a module for sorting organic waste and its utilization (making eco-enzymes). The next phase consists of socialization, education, and training on sorting organic waste and making the right eco-enzymes. The final stage consists of evaluation and making a final report. The expected result after education, socialization, or training has been carried out by the community service team, the community members, especially RT 04      RW 05 Permata Tembalang, know better and understand the sorting and utilization of organic waste.  Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50214 10.14710/vol%viss%ipp537-551 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 21-30 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 21-30 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50214/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10975 2016-05-05T04:32:12Z presipitasi:RVA

SEWAGE SLUDGE GASIFICATION CASE STUDI IN RURAL INDIA Budisulistiorini, Sri Hapsari Environmental Engineering sewage sludge, throated downdraft gasifier, pellet, drying . Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10975 10.14710/presipitasi.v4i1.69-74 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 69-74 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 69-74 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10975/8666

oai:ojs.ejournal.undip.ac.id:article/29182 2020-12-16T21:04:21Z presipitasi:RSA

Optimasi Sistem Pengangkutan Sampah di Kecamatan Tembalang Kota Semarang Optimization of Waste Transportation System in Tembalang District, Semarang City Pramesti, Ajeng Lakshita Sumiyati, Sri Ramadan, Bimastyaji Surya Samadikun, Budi Prasetyo Sudarno, Sudarno Teknik Lingkungan biaya operasional kendaraan; pengangkutan sampah; kondisi jalan; waktu operasional Environmental Engineering waste transportation; road conditions; operational time; vehicle operational cost Kecamatan Tembalang memiliki jumlah penduduk sebanyak 206.271 jiwa dengan timbulan sampah sebanyak 156,8 m3. Kecamatan Tembalang memiliki 18 TPS, 23 kontainer, dan 7 kendaraan pengangkut untuk menangani sampah dari TPS menuju TPA Jatibarang. Persentase pelayanan pengangkutan sampah di Kecamatan Tembalang hanya sebesar 27%. Beberapa TPS belum dapat menampung timbulan sampah dari penduduk Kecamatan Tembalang. Kondisi jalan, jenis jalan, dan kecepatan kendaraan dari rute pengangkutan sampah mempengaruhi waktu pengangkutan dan biaya operasional yang dikeluarkan. Tujuan dari perencanaan ini adalah merencanakan sistem pengangkutan sampah di Kecamatan Tembalang dengan mengoptimalkan waktu kerja dan biaya sesuai dengan target yang diinginkan oleh dinas terkait. Sisa waktu kerja rata-rata yang dimiliki kendaraan pengangkut sampah di Kecamatan Tembalang adalah 2,28 jam dengan jumlah ritasi 21 rit/hari. Rute pengangkutan dioptimasi menggunakan Network Analyst pada aplikasi berbasis GIS. Kondisi jalan mempengaruhi waktu pelayanan dan kecepatan kendaraan rata-rata optimal 37,607 km/jam yang menyebabkan jumlah ritasi bertambah menjadi 34 rit/hari, dengan 31 kontainer dan sisa waktu kerja rata-rata adalah 1 jam. Optimasi tersebut menyebabkan meningkatnya persentase pelayanan menjadi 42%. Peningkatan biaya operasional kendaraan (BOK) diketahui sebesar Rp 694.262.870,53/tahun dengan penurunan biaya retribusi sebesar Rp 1.983,59/KK/tahun dikarenakan pertambahan persentase pelayanan. Tembalang District has 206,271 residents, with 156,8 m3 amount of waste generated. Tembalang Sub-District has 18 waste collection point, 23 containers, and 7 transport vehicles to handle solid waste from the waste collection point to Jatibarang Landfill. The percentage of waste transportation services in Tembalang was 27%. There is some waste collection point that has not been able to accommodate waste generation from the Tembalang District residents. Road conditions, road types, and vehicle speeds of the waste transport route affect transporting waste and the remaining work time and the operational costs incurred. This research aims to plan a waste transportation system in Tembalang District by optimizing the work time and cost under the target desired by the relevant department. The average remaining work time is 2.28 hours, with a total of 21 trips/ day. Transportation routes are optimized using Network Analyst on GIS-based applications. Road conditions affect service time with an optimal average speed of 37.607 km h, which causes the addition of the number of trips after optimization increased to 34 trips/day with 31 containers. The average remaining work time is 1 hour. This optimization led to an increase in service percentage to 42%. Vehicle operating costs is increasing each year for about Rp. 694,262,870.53/year with a decrease in the price of fees of Rp. 1,983.59/householder/year due to the rise in service percentage. Universitas Diponegoro Departemen Teknik Lingkungan Undip Fakultas Teknik 2020-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29182 10.14710/presipitasi.v17i2.128-137 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 128-137 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 128-137 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29182/pdf_1 Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/72938 2025-12-13T04:17:17Z presipitasi:RCS

Environmental Sensitivity Analysis of Oil Spills: A Case Study in Coastal Areas Ardiansyah, Ichsan Prayoga Liyantono, Liyantono Effendi, Hefni Ikrari, Karaben Ikhtiyana Ilmu Pengelolaan Sumberdaya Alam dan Lingkungan Coastal karawang; environmental sensitivity analysis; oil spill The coastal areas of Karawang Regency are at risk of being affected by oil spills originating from oil pipelines leaking. The purpose of this research is to develop an environmental sensitivity index based on the assessment standards of the National Oceanic and Atmospheric Administration, with research locations in the Karawang Coast. The results showed that the resources in the Karawang coastal area that sensitive to oil spills are shoreline type of mangrove  with a total length of 34.76 km of shoreline; consist of dense mangrove forest with an area of 173.14 ha; capture fisheries with 6,832 fishermen with a production of 9,319.38 tons/year; and aquaculture involving 5,643 fishing households with a production of 43,389.45 tons/year. The environmental sensitivity index value was concluded as very sensitive for mangrove beaches, mangrove forests in all locations and aquaculture in the Tirtajaya & Batujaya areas, while the capture fisheries and the capture aquaculture were concluded as sensitive. The environmental sensitivity index maps of the three themes indicated that the socio-economic component is the most sensitive component compared to other components. Specifically, the socio-economic components that were the most sensitive to the impact of oil contamination were aquaculture and capture fisheries areas. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/72938 10.14710/presipitasi.v22i3.809-819 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 809-819 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 809-819 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/72938/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46995 2023-01-04T02:30:50Z presipitasi:RCS

Fluctuations of PM2.5 and NOx Concentration and Their Relationship with Meteorological Factors in the Rural Area (Case Study: Puncak Bogor) Teani, Ni Putu Intan Permata Turyanti, Ana Wattimena, Ronald Christian Paramitadevi, Yudith Vega Kurniawan, Farhan Ilmu Lingkungan; Meteorologi Pencemaran Udara Correlation; meteorogical factors; PM2.5; Puncak Bogor; precursor NOx Rural areas are generally synonymous with better air quality than urban areas. However, if there is an agricultural activity, it has the potential to release nitrogen from the soil, be oxidized and form NO and NO2 in the air. These two gases encourage the formation of secondary PM2.5 particulates in the air of rural areas. This study aims to analyze fluctuations in PM2.5 concentration in rural areas, the effect of its precursor NOx, and the influence of meteorological factors. The location used as a case study is the Cibeureum area, Puncak, Bogor Regency. The data used are PM2.5, NO, NO2, NOx concentration data (per 3 hours), rainfall, air temperature, wind speed and direction in 2019 and 2020, which were analyzed using correlation and linear regression and the open-air package provided by RStudio. The results showed that the concentration of PM2.5 with NOx as a precursor had a significant positive correlation in 2019 (r = 0.68) and 2020 (r = 0.63). Cumulative precipitation affects the concentration of PM2.5 and NOx in the air. Meteorological factors have a small correlation value to fluctuations in PM2.5 concentration and NOx concentration except for air temperature (r = 0.3). Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46995 10.14710/presipitasi.v19i3.451-463 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 451-463 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 451-463 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46995/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/46995/10955 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11007 2016-05-05T01:28:38Z presipitasi:RVA

KAJIAN SARANA SANITASI DALAM MENDUKUNG PENGEMBANGAN TRANSPORTASI SUNGAI DI KECAMATAN DANAU PANGGANG KABUPATEN HULU SUNGAI UTARA PROVINSI KALIMANTAN SELATAN Maryono, Maryono Environmental Engineering Sanitation infrastructure, waterways development, Danau Panggang District, South Kalimantan . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11007 10.14710/presipitasi.v5i2.16-21 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 16-21 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 16-21 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11007/8691

oai:ojs.ejournal.undip.ac.id:article/58823 2025-05-18T20:37:10Z presipitasi:RCS

Utilization of Activated Charcoal from Cassava Peel and Straw in Reducing Cadmium Levels in Putri Cempo Landfill Leachate Hikari, Hasna Nadia Syahrani, Lathifa Putri Wiedhya Luthfia, Luthfia Khoirunnisa, Sofiyana Rachmawati, Siti Ilmu Lingkungan Cadmium; charcoal; cassava peel; straw; leachate Contamination of leachate due to excessive rainwater infiltration into landfill sites presents a significant environmental and public health concern. This study aims to address the adverse impacts of cadmium (Cd) pollution in leachate, specifically its risks to human health and the environment. To address this issue, the research investigates the use of natural adsorbents to mitigate agricultural waste. Straw and cassava peel, abundantly available in Indonesia due to the country's substantial rice and cassava production, were selected as potential adsorbents. The findings of this study are important for guiding pollution control measures and evaluating community activities near pollution sources, particularly focusing on Cd pollution originating from Putri Cempo in Jatirejo Village, Mojosongo, Jebres, Surakarta. The research shows that cassava peel waste is highly effective in adsorbing cadmium metal levels in leachate, with a significant total effectiveness (EF%) rating of 0.3144. Additionally, the study identifies the optimal burning temperature for activated charcoal derived from cassava peel as 600°C, resulting in the highest EF% value of 0.515152. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58823 10.14710/presipitasi.v21i2.492-503 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 492-503 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 492-503 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58823/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/34179 2022-02-16T03:29:41Z presipitasi:RSA

Determination of Zoning Recharge Area and Spring Conservation in the Upstream Sub-Basin of the Jali River, Gebang District, Purworejo Regency, Central Java Province Aurilia, Mia Fitri Santoso, Dian Hudawan Sungkowo, Andi Teknik Lingkungan recharge area, conservation, springs, overlay, scoring Human needs for clean water can be obtained from various sources, one of those is springs. The spring is the main water source for the people in Redinkidul Hamlet. The dependence of the community on springs shows that there is a need for conservation of spring recharge areas. The purpose of this study was to determine the ability of recharge areas to absorb water and provide conservation direction for spring recharge areas. The research method used is survey and mapping methods to obtain data on existing conditions in the field, scoring and overlay methods to determine the condition of the recharge area based on the results obtained. The scoring parameter refers to Permen PU No. 2 of 2013. The results obtained show that the spring recharge area zone has a moderate class with a score of 11-13. The highest score obtained is on the parameters of land use and rainfall. Based on these results, the proposed conservation directives are in the form of technical conservation directions in the form of bund terraces and spring support buildings. This conservation is needed so that the potential of the spring is maintained. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34179 10.14710/presipitasi.v18i1.10-20 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 10-20 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 10-20 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34179/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/79582 2026-04-21T07:44:25Z presipitasi:RSA

Effectiveness of Sugarcane Bagasse Adsorbents for Chromium Removal from Industrial Metal Plating Wastewater Nabila, Iffah Rachmawati, Siti Masykuri, Mohammad Nurlita, Siti ilmu lingkungan Adsorption; chromium; sugarcane bagasse; wastewater treatment Wastewater from metal plating businesses contains hazardous heavy metals, including chromium (Cr), which must be properly treated to avoid environmental contamination. Adsorption utilizing natural materials, such as sugarcane bagasse, is a promising option. This study compared the effectiveness of H2SO4-activated sugarcane bagasse with sugarcane bagasse-based activated carbon in removing total chromium (Cr-T) from metal plating wastewater and analyzed the effects of adsorbent mass and contact time. Atomic absorption spectrophotometry (AAS) was used to measure the final chromium concentrations after batch adsorption was conducted with different masses and contact periods. The findings revealed that the adsorption effectiveness increased as the adsorbent mass and contact duration increased, reaching an ideal point. While activated carbon achieved its peak at 12 g and 120 min (95% and 47.6% efficacy, respectively), activated bagasse performed best at 15 g and 150 min (51.9% and 43% effectiveness, respectively). Activated carbon performed better because of its increased surface area and pore structure resulting from carbonization. These results demonstrate that sugarcane bagasse is a potential, affordable, and sustainable natural adsorbent for lowering total chromium in industrial effluents, particularly when transformed into activated carbon. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79582 10.14710/presipitasi.v23i1.203-218 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 203-218 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 203-218 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79582/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/79364 2025-12-13T04:17:17Z presipitasi:RSA

Sustainable Stabilization of Expansive Soil Using Rice Husk Ash, Sisal Fiber, and Lime Kamba, Assy Nakamoga, Phiona Kiwanuka, Moses Niyomukiza, John Bosco Civil engineering, Geoenvironmental engineering; Soil bioengineering Expansive soil; lime; rice husk ash; sisal fiber; sustainability Expansive soils pose a major challenge to infrastructure stability due to their significant volumetric changes during wetting and drying cycles. Conventional stabilizers such as cement and lime are effective but carbon intensive. The use of agro-industrial residues combined with natural fibers presents a sustainable alternative, though it remains insufficiently investigated in tropical environments. This study examines the synergistic effects of rice husk ash (RHA), sisal fiber, and lime on the engineering behavior of expansive soil. Laboratory tests conducted in accordance with BS 1377 and ASTM standards included Atterberg limits, compaction, unconfined compressive strength (UCS), and California bearing ratio (CBR). XRF analysis confirmed the high silica content of RHA, indicating strong pozzolanic potential when blended with lime. The results showed that small percentages of RHA (12.5–17.5%) yielded the most significant improvements: plasticity index reduced from 32.6% to 12.7%, linear shrinkage decreased from 12.7% to 4.3%, the maximum UCS was 0.69 MPa, and soaked CBR increased to 48% compared with 3.8% in unstabilized soil. Beyond 17.5% RHA, strength and compaction performance declined due to excess fines and incomplete pozzolanic bonding. The findings from this study demonstrate that agro‑industrial residues and natural fibres can provide low‑carbon, locally sourced solutions for subgrade stabilization. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79364 10.14710/presipitasi.v22i3.1002-1014 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 1002-1014 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 1002-1014 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79364/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/50138 2023-04-08T21:36:46Z presipitasi:RSA

Application of Free Water Surface Constructed Wetland for Reduction of Brantas River Pollutants Masriyanto, Popi Wahyuni Yulistyorini, Anie Ariestadi, Dian Environmental Engineering; Wastewater Treatment Brantas river water; constructed wetland; free water surface Brantas River is a raw clean water sources that flow through Malang City. The Brantas River water is polluted due to discharging of untreated wastewater, causing a decrease in river water quality. According to these problems, exploring water resources through Brantas River water treatment is essential using Free Water Surface Constructed Wetland (FWSCW) which aims to analyze the performance and improve the water quality of the Brantas River using these wetlands. The research was conducted on a laboratory scale with control treatment and FWSCW with aquatic plants such as Pistia stratiotes, Echinodorus palaefolius, and Heliconia psittacorum. The results showed that pH and temperature were stable, with values between 7.63 to 8.53 and 23°C to 27°C. The removal efficiency of FWSCW and control in reducing turbidity was 99.53% and 98.55%, respectively, and TDS reduction was 0.56% and 2.84%, respectively, for control and FWSCW. The water quality has met the 2nd class of the water quality standards based on Government Regulation of the Republic of Indonesia No. 82 of 2001. At the same time, the efficiency of reducing BOD concentration was 89%. The results show that the FWSCW system can be used as a secondary treatment system to produce clean water. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50138 10.14710/presipitasi.v20i1.93-103 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 93-103 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 93-103 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50138/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/16467 2020-04-17T11:35:13Z presipitasi:RSA

Kemampuan Tanah Liat dengan Campuran Serbuk Gergaji sebagai Penahan Lindi di Tempat Pengolahan Akhir Sampah Budihardjo, Mochamad Arief Environmental engineering, solid waste management bentonite; sawdust; permeability Tempat Pengolahan Akhir (TPA) Sampah dengan sistem lahan urug harus dilengkapi dengan lapisan semi kedap (liner) yang berfungsi sebagai penahan lindi agar tidak mencemari lingkungan sekitar TPA. Di Indonesia, TPA banyak menggunakan lapisan tanah liat yang dipadatkan sebagai liner. Salah satu jenis tanah liat yang digunakan sebagai liner adalah bentonit. Bentonit memiliki permeabilitas rendah sehingga dapat menahan lindi dengan baik. Namun bentonit juga memiliki nilai batas-batas atterberg yang cukup tinggi sehingga mudah mengembang dan menyusut yang dapat memicu terjadinya retakan yang berpotensi mengurangi kemampuan liner dalam menahan lindi. Pada penelitian ini, serbuk gergaji yang memiliki sifat menahan air di tambahkan sebagai campuran tanah liat dengan tujuan untuk melihat pengaruhnya terhadap karakteristik dari bentonit. Pengujian batas-batas atterberg seperti batas cair, batas plastis, pengembangan bebas dan permeabilitas dari bentonit dengan penambahan serbuk gergaji dilakukan untuk mengetahui pengaruh serbuk gergaji terhadap perilaku bentonit. Penambahan serbuk gergaji yang diuji pada studi ini adalah sebesar 2%, 3% dan 5% dari total berat kering. Hasil percobaan menunjukkan bahwa penambahan serbuk gergaji menurunkan batas cair, batas plastis dan pembengkakan bebas dari bentonit. Disisi lain, penambahan serbuk gergaji meningkatkan permeabilitas bentonit dari semula sebesar 1,24 x 10-11 m/detik menjadi 3,98 x 10-10 m/detik dengan penambahan serbuk gergaji sebesar 8%. Universitas Diponegoro 2017-11-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16467 10.14710/presipitasi.v14i2.97-101 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 97-101 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 97-101 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16467/pdf Copyright (c) 2017 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/65105 2025-05-18T20:39:07Z presipitasi:RCS

Spatial Characterization of Flood Intensity over the Drainage Condition of East Sempaja Village, Samarinda Ghozali, Achmad Rizki, Ayu Fitriana Fitriana Mustofa, Umar Perencanaan Wilayah dan Kota; Manajemen Bencana Perkotaan; Mitigasi Bencana Drainage; relationships; spatial characterization; flood intensity The flood events frequently impacting Samarinda City have not yet been thoroughly examined based on their intensity, particularly in the most flood-prone village in the city, East Sempaja Village. This paper employed a rigorous methodology, including K-means cluster analysis and Getis-Ord G* statistics, to reveal spatial clustering patterns based on flood intensity and residential drainage conditions in East Sempaja. The Spearman correlation was determined to identify the relationship between both factors. The present study demonstrates that using community-derived data can enhance flood disaster mitigation strategies, particularly within regions with insufficient data availability. The analysis shows that most neighborhood areas in East Sempaja have moderate to high flood intensity levels. The areas with high flood intensity are spread across the North. This paper confirms that the condition of drainage channels has a positive, yet weak, significant relationship with the level of flood intensity. Thus, optimizing drainage channels is still relevant in managing flood disasters in East Sempaja, providing practical strategies for a pressing issue.  Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/65105 10.14710/presipitasi.v21i3.917-935 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 917-935 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 917-935 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/65105/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39758 2022-02-16T03:26:18Z presipitasi:RSA

Utilization of Spent Nickel Catalyst as Raw Material for Ni-Rich Cathode Material Nisa, Shofirul Sholikhatun Nurohmah, Anisa Raditya Yudha, Cornelius Satria Nilasary, Hanida Nursukatmo, Hartoto Dyartanti, Endah Retno Purwanto, Agus Chemical Engineering Spent nickel catalyst; NMC; lithium-ion battery Spent nickel catalyst will be harmful to the environment if it is not processed or used properly. In fact, this waste still has a high nickel content. The treatment of spent nickel catalysts has been widely reported, but limited to nickel extraction. Since the lithium-ion batteries demand is continued to increase, then nickel is the most sought-after metal. Consequently, nickel from spent nickel catalysts could be developed as secondary source for lithium-ion battery cathode. This study aims to utilize spent nickel catalysts into more valuable materials. Nickel that has been extracted and mixed with Mn and Co has been used as raw material for nickel-rich cathode, namely NMC. Nickel extraction and NMC synthesis were using the acid leaching method followed by co-precipitation[WI1] [SSN2] . Based on the functional test performed in this work, nickel from spent nickel catalyst can be applied to Li-ion batteries. The sintering temperature that gives good characteristics and electrochemistry was found 820oC. The galvanostatic charge-discharge test gave specific capacity results for NMC of 110.4 mAh/g. The cycle test showed that NMC synthesized from spent nickel catalyst can be carried out up to 50 cycles with a capacity retention of 87.18%. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39758 10.14710/presipitasi.v18i2.349-357 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 349-357 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 349-357 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39758/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/9502 2015-11-13T10:02:18Z presipitasi:RVA

STUDI KEHILANGAN AIR AKIBAT KEBOCORAN PIPA PADA JALUR DISTRIBUSI PDAM KOTA MAGELANG (STUDI KASUS: PERUMAHAN ARMADA ESTATE DAN DEPKES, KRAMAT UTARA KECAMATAN MAGELANG UTARA ) Nugraha, Winardi Dwi K, Dinda Rita Environmental Engineering; Environment lose water, pipe leakage, distribution stripe Up to the present time, there’re lot of Perusahaan Daerah Air Minum (PDAM) that couldn’t be able toserve their customers in adequate quantity for 24 hours in one day. One of the factor that causing thisproblem are the high lost of water in distribution system that including physic lost and non physic lost.The physic lost is caused due to the pipe leakage in distribution system, so that the quantity of waterthat their use isn’t appropriate to the money that they’re paid. In this research was already been donea study about water losses is caused due to the pipe leakage in Armada Estate and Depkes housingKramat Utara Magelang Utara . On the strength of the first analysis that is done ( WBZ ), water lossesin both of the housing are relative big enough. In north armada estate housing, the water lossesachieves 75,21% and south armada estate housing achieves 43,97%. Whereas in department ofhealth housing, the water losses is lowest than north armada estate and south armada estate. Thewater losses in department of health housing achieves 25,33%. Universitas Diponegoro 2010-09-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9502 10.14710/presipitasi.v7i2.71-76 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 2 (2010): Vol 7, No 2 (2010); 71-76 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 2 (2010): Vol 7, No 2 (2010); 71-76 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9502/7628

oai:ojs.ejournal.undip.ac.id:article/51809 2024-06-14T22:00:52Z presipitasi:RCS

Determination of Sustainable Groundwater Conservation Zones Based on Groundwater Recharge Areas: Case Study: Denpasar City Ardana, Putu Doddy Heka Diasa, I Wayan Wijaya, I Putu Arie Guna Pamungkas, Tri Hayatining Teknik Sipil; Ilmu Lingkungan Groundwater; recharge area; discharge area; sustainability; ArcGis; overlay Groundwater is a valuable resource for meeting the daily needs of humans, which continues to increase along with population growth. Therefore, it is essential to maintain groundwater properly. Groundwater management can be carried out comprehensively in groundwater basins, including determining groundwater recharge areas. This study aims to determine the location of groundwater recharge to conserve groundwater in Denpasar City to create groundwater sustainability. The geospatial analysis uses a weighting and scoring approach (Overlay Weighted Sum) to determine the groundwater recharge area. Retrieval data in the field by observing geological conditions and measuring the depth of the phreatic surface in Denpasar City. The determination of recharge and discharge areas was analyzed using the geospatial method using the ArcGIS 10.8 application using Interpolation Inverse Distance Weighted (IDW). The five parameters used in this scoring assessment are lithology, rainfall, soil cover type, slope, and phreatic surface depth. The highest score obtained from the weighting of the scoring is 46, while the lowest score is 36. The recharge area is found in the weighted value of 41-46, which is in the northern region of Denpasar City. The discharge area is located at a weight value of 36-41 in the southern area of Denpasar City. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51809 10.14710/presipitasi.v20i3.507-522 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 507-522 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 507-522 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51809/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/22921 2020-04-17T11:38:19Z presipitasi:RSA

Optimasi Sistem Pengangkutan Sampah Kecamatan Jati, Kabupaten Kudus, Jawa Tengah Ramadan, Bimastyaji Surya Safitri, Rahayu Puji Cahyo, Mohammad Rafif Dwi Wibowo, Yudha Gusti Teknik Lingkungan; Ilmu Lingkungan optimasi pengangkutan sampah; pola pengangkutan, rute pengangkutan Pengangkutan sampah merupakan bagian dari kegiatan pengelolaan sampah yang berpengaruh pada biaya keseluruhan pengelolaan dimana anggaran pengangkutan sampah dapat mencapai 60% dari total seluruh biaya pengelolaan sampah. Tujuan dari penelitian ini adalah untuk mengoptimasi sistem manajemen pengangkutan sampah di Kecamatan Jati, Kabupaten Kudus yang dikelola oleh Dinas Perumahan, Kawasan Permukiman dan Lingkungan Hidup, Kabupaten Kudus. Optimasi dilakukan dengan membandingkan sistem manajemen pengangkutan sampah eksisting dengan merencanakan sistem baru yang dibuat dengan berpedoman pada Permen PU Nomor 3 Tahun 2013 tentang Penyelenggaraan Prasarana dan Sarana Persampahan dalam Penanganan Sampah Rumah Tangga dan Sampah Sejenis Sampah Rumah Tangga. Berdasarkan hasil penelitian yang telah dilakukan, sistem manajemen pengangkutan sampah Kecamatan Jati saat ini dapat dioptimasi pada teknik operasionalnya yang meliputi pemilihan pola yang efektif dan efisien, pembagian rute secara merata dan penyediaan sarana pengangkutan sampah yang baik. Dengan demikian, pemerintah daerah setempat dapat melakukan pelayanan pengangkutan sampah secara maksimal, menggunakan waktu kerja secara efektif, mengefisienkan sarana pengangkutan sampah serta dapat mengurangi anggaran manajemen sampah secara keseluruhan Universitas Diponegoro 2019-06-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22921 10.14710/presipitasi.v16i1.8-15 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 8-15 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 8-15 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22921/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/68711 2025-12-04T00:06:42Z presipitasi:RVA

Bibliometric Analysis of Water Pollution Research: Focus on Industry Impacts Mellyzar, Mellyzar Hernani, Hernani Nahadi, Nahadi Agustina, Sri Environmental Science; Social Sciences; Data Science and Analytics Water pollution research; bibliometric analysis; biblioshiny Water pollution is a pressing global issue, particularly in regions heavily impacted by industrialization. This results in aquatic ecosystem degradation, biodiversity loss, and significant health risks from waterborne diseases and prolonged exposure to toxic pollutants. Industrial waste is a key contributor, highlighting the urgency of effective mitigation strategies. This study aimed to analyze research trends in industrial water pollution, identify knowledge gaps, and provide actionable insights for policymakers. A bibliometric analysis and literature review were conducted on 2,523 articles published between 2015 and 2024 using R software and the Biblioshiny interface. In addition, 30 highly cited articles were reviewed in-depth to explore dominant themes and advancements. The findings show a marked increase in research output, with China as the leading contributor. Key topics include the impact of industrial effluents, innovative water treatment technologies, and regulatory measures. However, significant gaps remain, particularly in interdisciplinary approaches and research on developing countries, such as Indonesia. This study recommends advancing scalable, cost-effective hybrid technologies, fostering interdisciplinary collaboration, and promoting public awareness initiatives. This study highlights the need to integrate technological, social, and policy dimensions to address industrial water pollution effectively, offering a pathway for sustainable solutions and future research directions. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/68711 10.14710/presipitasi.v22i2.647-669 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 647-669 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 647-669 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/68711/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/68711/18956 Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42959 2022-12-14T20:16:03Z presipitasi:RCS

WEB GIS: The Promotion Model of Ngerangan Tourist Village in Klaten Regency through The Sustainable Rural Tourism Context During The Covid-19 Pandemic Ristianti, Novia Sari Bashit, Nurhadi Ulfiana, Desyta Martono, Kurniawan Teguh perencanaan wilayah dan kota, teknik geodesi, teknik sipil, teknik komputer Web GIS; pandemic covid-19; tourism The application of large-scale social restrictions (LSSR) during the Covid 19 pandemic in Indonesia significantly impacted the tourism sector. A Sustainable Rural Tourism model is expected to develop tourist village development during the Covid 19 pandemic through the WEB GIS (Website Geographical Information Systems) approach. It creates smart tourism through tourist information systems integrated with tourist websites. Ngerangan Tourist Village in Klaten Regency is a village where most of the population's economy is dependent on MSME (Micro, Small, and Medium enterprises) and farming activities. The research aims to formulate a tourism promotion model in Ngerangan tourism village through WEB GIS. The method used is quantitative. First, identifying the data needs such as spatial data (tourist attractions, tourist safety routes types, and infrastructure for implementing health protocols) and non-spatial data (information on MSME and virtual tours). Second, designing the tourism promotion system through WEB GIS and third, testing to see the output of the WEB GIS produced. The research output is  Web GIS using story maps application contains two spatial information about the Ngerangan tourist village. First, spatial information about tourist attractions includes locations, photos, and descriptions of tourist attractions. Second, spatial information regarding health protocols facilities during the Covid-19 pandemic includes locations, photos, and descriptions of health protocol facilities Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42959 10.14710/presipitasi.v19i1.108-121 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 108-121 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 108-121 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42959/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10966 2016-05-05T04:32:12Z presipitasi:RVA

NORMALISASI SUNGAI (SALURAN) KALIGAWE SEMARANG DAN PENGARUHNYA TERHADAP LINGKUNGAN SEKITAR DITINJAU DARI TEORI PERENCANAAN Samadikun, Budi Prasetyo Environmental Engineering Planning theory, normalization program, participation . Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10966 10.14710/presipitasi.v4i1.9-16 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 9-16 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 9-16 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10966/8657

oai:ojs.ejournal.undip.ac.id:article/57460 2025-05-18T20:36:13Z presipitasi:RCS

Analysis of the Application of Mangrove Rehabilitation Structures on Mangrove Growth and Calculation of Carbon Stocks in the Coastal Area of Demak, Indonesia Handayani, Elinna Putri Budihardjo, Mochamad Arief Sugianto, Denny Nugroho Blue carbon; Demak; mangrove; rehabilitation; demplot mangrove Mangroves participate in controlling climate change by acting as the lungs of the world through the absorption and storage of blue carbon. The high-standing water on the land that must be rehabilitated is one of the obstacles encountered, so a special strategy is needed, namely, implementing a mangrove rehabilitation media structure using the demplot mangrove method. This study aimed to analyze mangrove growth based on the application of mangrove rehabilitation media structures and to calculate potential carbon stocks based on the value of tree biomass from mangrove rehabilitation monitoring. In this study, tree height and diameter were measured and linked to the water quality and frequency of inundation. Mangrove carbon reserves were also calculated based on biomass values. Good growth in the height and diameter of mangroves occurred in Avicennia lanata stands with an inundation frequency of 6 h/day. The largest projection of potential carbon stocks from the results of monitoring mangrove rehabilitation was also stored in Avicennia lanata mangrove stands at 0.3467 kg/tree (60 months), 0.6287 kg/tree (120 months), and 0.9107 kg/tree (180 months). Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57460 10.14710/presipitasi.v21i1.165-173 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 165-173 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 165-173 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57460/xml Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46123 2023-03-29T21:11:54Z presipitasi:RSA

Decision-Making Strategy of Hospital Waste Management Using the TOPSIS Method Rimantho, Dino Putri, Gita Azizah Teknik Lingkungan; Ilmu Lingkungan; Manajemen Lingkungan; Decision Analysis Clinical; hospital; waste; decision; TOPSIS Clinical waste is likely to include disease-causing microorganisms, chemical wastes, and other treatments used to treat different conditions, whether solid or liquid. As a result, clinical wastes have a more significant potential for pathogenicity and toxicity than most other types of waste in all of their forms. This study aims to design a strategic decision model for managing medical waste from hospitals. The method used in this research is the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The data was collected using a questionnaire distributed to three people from various fields: hospital waste management experts, academics, and the environmental service. The results show that the preference for the best hospital waste management strategy is SOP improvement with a weight of 0.6576. Furthermore, the alternative of investing in environmentally friendly technology, 3R campaigns, and outreach to employees and visitors received a weight of about 0.4885, 0.2973, and 0.3393, respectively. This study can be a reference for research related to decision-making strategies and the field of hospital waste management. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46123 10.14710/presipitasi.v19i2.341-350 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 341-350 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 341-350 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46123/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10998 2016-05-04T22:12:39Z presipitasi:RVA

PENGARUH STRATEGI OPERASIONAL SEQUENCING BATCH REACTOR (SBR) DENGAN METODE STEP FEED PADA PENYISIHAN NH3, NO2, NO3 Junaidi, Junaidi Oktiawan, wiharyanto Environmental Engineering COD, Denitrification, SBR, Step feed . Universitas Diponegoro 2009-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10998 10.14710/presipitasi.v6i1.34-39 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 34-39 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 34-39 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10998/8682

oai:ojs.ejournal.undip.ac.id:article/58229 2025-05-18T20:37:10Z presipitasi:RVA

Challenges in using Electrocoagulation Process in Removal of Nickel Metal in Wastewater: a Literature Review Harahap, Muhammad Ghozali Abfertiawan, Muhammad Sonny Syafila, Mindriany Teknik Lingkungan Electrocoagulation; nickel, wastewater treatment In recent years, the surge in nickel production, driven by the growing demand for electric vehicle batteries, has raised concerns regarding environmental consequences. The nickel mining and processing industries contribute to increased nickel levels in wastewater, presenting a serious threat to aquatic ecosystems and human health. This article emphasizes the urgency of developing effective technologies for treating nickel-contaminated wastewater. Electrocoagulation emerges as a promising method, providing high efficiency, minimal sludge production, and cost-effectiveness. The article critically and systematically reviews the potential of the electrocoagulation process in nickel removal from wastewater. In the review, we identify and analyze nearly 32 studies published from 2013 to 2023. We discuss contaminant removal mechanisms and analyze trends in the use of operational parameters. This article identifies the most commonly applied conditions: aluminum electrodes, inter-electrode spacing ≥ 1 cm, current density ≤ 10 mA/cm², initial pH 6 ≤ pH < 11, electrolysis time < 60 min, batch operation, and initial nickel concentration > 50 mg/L. This comprehensive review serves as a foundational resource for advancing electrocoagulation technology in the removal of heavy metals from nickel wastewater. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58229 10.14710/presipitasi.v21i2.300-323 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 300-323 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 300-323 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58229/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/33840 2020-12-16T21:33:07Z presipitasi:RSA

Determination of Sustainable Domestic Waste Management System in densely populated areas along the Ciliwung River (Case Study: Cililitan Village) Penentuan Sistem Pengelolaan Limbah Domestik Berkelanjutan di Wilayah Padat Penduduk Bantaran Sungai Ciliwung (Studi Kasus: Kelurahan Cililitan) Paramita, Nadia Ningrum, Sari Sekar Environmental Engineering domestic, wastewater, technology, management, ciliwung Teknik Lingkungan domestik, limbah cair, teknologi, manajemen, ciliwung The Ciliwung River is one of the main rivers flowing in the DKI Jakarta area. Ciliwung has an area of 370.8 km2, with a length of 124.1 km. The Ciliwung River contributes greatly to the communities in three big cities, namely Bogor, Depok and Jakarta as a source of drinking water, a source of raw water and a source of water for irrigation. The condition of household wastewater is currently discharged directly or indirectly into river water bodies. gray water is immediately discharged into the water body without being treated. Blackwater is treated to inadequate septic tanks or discharged directly into water bodies. This condition certainly requires a fast and precise solution and handling. In terms of domestic wastewater management, both gray water and black water, at this time Cililitan village is not included in the area that is accessible to centralized wastewater piping or off-site systems and does not have land that can be used to make a communal system waste treatment so that most of the households still throw away directly into the river or using a septic tank without regular desludging. The purpose of this study is to identify the current waste management conditions in Cililitan Village and provide recommendations for the selection of a sustainable domestic waste management system that is acceptable to the community and safe for the environment. Sungai Ciliwung merupakan salah satu sungai utama yang mengalir di wilayah DKI Jakarta. Daerah Airan Sungai (DAS) Ciliwung memiliki luas area sebesar 370,8 km2, dengan panjang 124,1 km. Sungai Ciliwung berkontribusi besar terhadap masyarakat di tiga kota besar yaitu Bogor, Depok dan Jakarta sebagai sumber air minum, sumber air baku dan sumber air untuk irigasi. Kondisi air limbah rumah tangga saat ini masih dibuang secara langsung maupun tidak langsung ke badan air sungai. Grey water langsung dibuang ke badan air tanpa diolah. Black water diolah ke septic tank yang belum memadai ataupun langsung dibuang ke badan air. Kondisi ini tentunya memerlukan solusi dan penanganan yang cepat dan tepat. Dalam hal pengelolaan air limbah domestik baik grey water maupun black water, Kelurahan Cililitan belum termasuk dalam wilayah yang terakses perpipaan air limbah terpusat atau off site system dan tidak memiliki lahan yang dapat digunakan untuk membuat pengolahan limbah sistem komunal sehingga kebanyakan dari rumah tangga masih membuang langsung ke sungai atau memakai tangki septik tanpa penyedotan berkala. Tujuan dari penelitian ini adalah untuk mengidentifikasi kondisi pengelolaan limbah yang ada saat ini di Kelurahan Cililitan dan memberikan rekomendasi terhadap pemilihan sistem pengelolaan limbah domestik berkelanjutan yang dapat diterima oleh masyarakan dan aman bagi lingkungan. Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33840 10.14710/presipitasi.v17i3.307-315 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 307-315 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 307-315 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33840/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/77510 2026-04-21T07:44:25Z presipitasi:RSA

Good Corporate Governance and Environmental Disclosure: The Moderating Role of the Sustainability Committee Saputro, Akbar Bayu Wahyuningrum, Indah Fajarini Sri Cahaya, Fitra Roman Basic Material; environmental disclosure; good corporate governance; sustainability committee This study investigates how elements of good corporate governance (GCG) affect environmental disclosure as a manifestation of corporate environmental responsibility, with the sustainability committee examined as a moderating variable. A quantitative research design was employed using a moderated regression analysis. The study relies on secondary data obtained from 110 basic materials sector companies listed on the Indonesia Stock Exchange (IDX) during the 2019–2023 period. Data analysis was conducted using SPSS Statistics version 26. The findings reveal that domestic institutional investors and institutional investors from developed countries positively influence the extent of environmental disclosure. In contrast, institutional investors from developing countries, board size, and gender diversity do not demonstrate a significant effect. The sustainability committee strengthens only the relationship between board size and environmental disclosure, while it does not moderate the effects of the other governance variables. This study extends prior research on the linkage between corporate governance mechanisms and environmental reporting. The existence of a sustainability committee reflects a company’s commitment to integrating sustainability principles into its policies and operational strategies, aligning corporate activities with the Sustainable Development Goals (SDGs) through the pursuit of balanced economic, social, and environmental performance. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/77510 10.14710/presipitasi.v23i1.77-94 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 77-94 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 77-94 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/77510/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/1470 2012-03-29T04:45:01Z presipitasi:RVA

KAJIAN WAKTU PENCEMARAN LINGKUNGAN AKIBAT PEMANFAATAN LIMBAH FLY ASH SEBAGAI BAHAN PEMBUATAN PAVING BLOCK Mochtar, Hadiwidodo Environmental Engineering; Environment fly ash, waktu tinggal, paving block, logam berat Cr dan Pb. Fly Ash PT. Pabrik Kertas Tjiwi Kimia, Tbk, memiliki kandungan logam berat Pb sebesar 1,012 ppm dan Cr sebesar 0,811 ppm. Kandungan oksida silika sebesar 71,88%, sehingga berpotensi sebagai material  campuran  pada  pembuatan  bahan  bangunan.  Penelitian  ini  bertujuan  untuk  mengetahui waktu tinggal Pb dan Cr dalam paving block pada variasi volume perendaman yang berbeda. Hasil uji perlindian  dengan  media  perendaman  aquades  menunjukkan  bahwa  semakin  besar  volume  air perendaman semakin kecil konsentrasi logam berat Pb dan Cr.  Sedangkan untuk media perendaman air sumur (studi kasus) menunjukkan bahwa semakin besar volume air perendaman semakin kecil konsentrasi logam berat  Cr dan logam Pb tidak terdeksi. Waktu tinggal logam berat Pb dan Cr pada paving block dengan volume air (aquades) perendaman 7,6 liter pada hari yang ke 22, sedang untuk volume air perendaman 15,2 liter pada hari ke 25. waktu tinggal logam berat Cr pada paving block dengan air sumur (studi kasus) pada perendaman  7,6 liter,  15,2 liter serta 22,8 liter pada hari yang ke 21. Universitas Diponegoro 2012-02-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1470 10.14710/presipitasi.v7i1.32-35 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 32-35 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 32-35 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1470/1234

oai:ojs.ejournal.undip.ac.id:article/50862 2023-01-04T02:30:50Z presipitasi:RCS

Noise Level of Railroad Settlements JPL 05 Kaligawe Street, Semarang Huboyo, Haryono Setiyo Hardyanti, Nurandani Meilasari, Fera Teknik Lingkungan Noise exposure; noise level; noise modelling; surfer software Noise is unwanted sound at a particular time and is sourced from any source. Data from the Pusarpedal Laboratory and the Ministry of Environment and Forestry of the Republic of Indonesia show that railroad settlements' noise in Yogyakarta, Surabaya, Semarang, and Bandung is beyond quality standards. Tambakrejo Village, Gayamsari District, Semarang, one of the railroad settlements at JPL 05 Kaligawe Street, Semarang area, close to a railroad. This research aims to know the noise level of the settlements. The sampling of noise level is done for 24 hours by measuring the noise for each time interval, with a total of 16 measuring points for 4 areas with various distances, 2.5 m, 5 m, 10 m, and 15 m. The sampling result shows that the railroad settlements have a noise level rate of 91.8 dB at a distance of 2.5 m, 89.5 dB at 5 m, 85.2 dB at 10 m, and 81.5 dB at 15 m. According to NOISE REL regulation, the maximum noise level allowed is 85.57 dB during 421 minutes or 7.02-hour of exposure. This sampling result shows that the noise levels are beyond of quality standards of both NIOSH REL and PermenLH No. 48/1996. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50862 10.14710/presipitasi.v19i3.710-719 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 710-719 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 710-719 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50862/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/12489 2020-04-17T11:33:34Z presipitasi:RSA

PENGARUH PENGENCERAN DAN PENGADUKAN TERHADAP PRODUKSI BIOGAS PADA ANAEROBIC DIGESTION DENGAN MENGGUNAKAN EKSTRAK RUMEN SAPI SEBAGAI STARTER DAN LIMBAH DAPUR SEBAGAI SUBSTRAT R, Mohammad Soeroso, F Pradana, Sahid Akbar Utomo, Sudarno Wardhana, Irawan Wisnu Environmental Engineering Biogas, limbah dapur, ekstrak rumen sapi, energi alternatif Kandungan organik pada limbah padat dapur dapat menjadi sumber substrat bagi bakteri anaerobik, yang akan menghasilkan biogas sehingga dapat menjadi sumber energi alternatif dan terbarukan. Limbah padat domestik dari dua restoran di sekitar Tembalang dijadikan sampel bagi penelitian ini. Pencacahan manual dan proses penggilingan (blender) dilakukan sebelum limbah padat domestik dimasukkan kedalam reaktor dengan volume 300 ml. Airditambahkan ke masing masing reaktor dengan volume yang berbeda beda untuk memperoleh faktor pengenceran. 1,1; 1,25; 1,42; 1,67 dan 2,00. Ekstrak rumen sapi digunakan sebagai starter bakteri. Temperatur, pH serta volume biogas dimonitor setiap hari selama kurang lebih 3 minggu. Faktor pengenceran dua kali dapat meningkatkan produksi biogas yang lebih banyak dibanding pada reaktor dengan pengenceran substrate lebih rendah. Selain itu pengenceranjuga mempercepat produksi dari biogas. Perlakuan pengadukan untuk meningkatkan produksi biogas, tidak teramati pada semua reaktor. Justru reaktor menghasilkan biogas yang lebih rendah ketika dilaukan pengadukan Universitas Diponegoro 2016-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/12489 10.14710/presipitasi.v13i2.88-93 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 2 (2016): September 2016; 88-93 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 2 (2016): September 2016; 88-93 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/12489/9430 Copyright (c) 2016 Jurnal Presipitasi https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/62365 2025-05-18T20:39:07Z presipitasi:RVA

Waste to Energy Sustainability Model as a Waste Power Plant: A Bibliometric and Visualization Analysis Rachmawatie, Dessy Erwin, Erwin Irawaty, Khafidza Nisa Ilmu Perencanaan Wilayah; Ekonomi Energi Waste; energy; power plant; bibliomatric More than half of the world's population lives in cities, so the increase in urban waste production globally is mainly due to population growth, urbanization, and economic development, in the past decade, the utilization of waste to energy has provided positive benefits in terms of energy generation. By 2040 power generation will increase globally by 49%. By 2040, renewable energy sources are expected to meet 8% of the total global energy demand, With the development of the economy, waste management goes through several stages to reach the level of high technology as seen today. A sophisticated collection system, combined with an efficient separation process, enables high recovery and recycling rates. The method used in this study is qualitative with a literature study approach. The findings in this study show that China is the country that researches the most about wasto to energy, then the process carried out in the PLTSa Waste to Energy Policy Model recommendations in this study involves several related actors such as Business Entities, authorized Local Governments, and communities. In this case, waste to energy needs attention by local governments that have the authority to manage electricity by establishing provincial regulations in the electricity sector, establishing general electricity plans, and determining business licenses for providing electricity to business entities.  Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62365 10.14710/presipitasi.v21i3.638-648 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 638-648 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 638-648 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62365/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/40166 2022-02-16T03:26:18Z presipitasi:RCS

Forecasting Greenhouse Gas Emissions from Heavy Vehicles: A Case study of Semarang City Budihardjo, Mochamad Arief Fadhilah, Isaaf Humaira, Natasya Ghinna Hadiwidodo, Mochtar Wardhana, Irawan Wisnu Ramadan, Bimastyaji Surya Teknik Lingkungan BAU, IPCC, vehicle emissions, VKT In Indonesia, transportation sector, specifically road transport consumed most energy compared to other sectors. Eventually, the energy consumption will increase due to the growth of vehicle number that also escalate emission. Vehicle emissions had been recognized as a significant contributor to atmospheric greenhouse gas (GHG) pollution. Heavy-duty vehicles are considered as main sources of vehicular emissions in most cities. Therefore, it is crucial to take into account heavy-duty vehicle emission projections in order to support policymakers to identify vehicle emissions and develop pollution control strategies. The aim of this study is to forecast heavy-duty vehicle population, vehicle kilometers travelled (VKT), fuel consumption, and heavy-duty vehicle emissions using data of Semarang City to illustrate greenhouse gas emission of big cities in Indonesia. Business as Usual (BAU) and The Intergovernmental Panel on Climate Change (IPCC) method were incorporated to determine vehicle emission projection. Heavy-duty vehicle emissions increase from 2021 to 2030 by 12.317 to 22.865 Gg CO2/year with amount trucks and buses emissions of 21.981,5 Gg CO2/year and 884,2 Gg CO2/year, respectively. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/40166 10.14710/interaksi.%v.%i.%p Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 254-260 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 254-260 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/40166/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/7226 2014-08-27T03:27:08Z presipitasi:RVA

PENGGUNAAN KARBON AKTIF DARI SAMPAH PLASTIK UNTUK MENURUNKAN KANDUNGAN PHOSPHAT PADA LIMBAH CAIR (Studi Kasus: Limbah Cair Industri Laundry di Tembalang, Semarang) Wardhana, Irawan Wisnu Handayani, Dwi Siwi R, Dessy Ika Environmental Engineering Environmental Engineering ABSTRAK Meningkatnya jumlah industri laundry akan mengakibatkan meningkatnya penggunaan deterjen. Zat yang  dominan  terkandung  dalam  deterjen  adalah  natrium  tripolyphosphat  yang  berfungsi  sebagai builder dan surfaktan, sehingga limbahnyapun mengandung phosphat. Hampir semua industri laundry membuang  limbahnya  tanpa  melalui  pengolahan  terlebih  dahulu,  hal  tersebut  akan  menyebabkan eutrofikasi  dimana  badan  air  menjadi  kaya  akan  nutrien  terlarut,  menurunnya  kandungan  oksigen terlarut  dan  kemampuan  daya  dukung  badan  air  terhadap  biota  air.  Menurut  hasi  uji  pendahuluan, limbah  cair  industri  tersebut  mengandung  kadar  phosphat  sebesar  10,21  mg/l.  Kadar  tersebut melebihi baku mutu Perda Prop. Jateng No 10 tahun 2004, dimana kadar maksimum untuk phosphat total  adalah  2  mg/l.  Salah  satu  cara  pengolahan  limbah  adalah  dengan  proses  adsorpsi menggunakan  karbon  aktif  dari  sampah  plastik  jenis  polyethylene.  Penelitian  ini  bertujuan  untuk mengetahui kemamapuan karbon aktif dari sampah plastik dalam menurunkan kandungan phosphat dengan percobaan batch dan kontinyu.  Percobaan batch menggunakan variasi berat karbon aktif dari sampah plastik 1,2, dan 3 gram untuk masing-masimg variasi ukuran media 30-60 mesh dan 100-200 mesh. Percobaan batch mempunyai efisiensi penurunanphosphat tertinggi pada berat 3 gram (100-200mesh) sebesar 45,45%. Sedangkan percobaan kontinyu dilakukan pada kolom berdiameter 1 inchi dengan  variasi  debit  50  ml/menit  dan  100  ml/menit.  Percobaan  kontinyu  mempunyai  efisiensi penurunan phosphat terbesar pada debit 50 ml/menit sebesar 54,75%. Nilai konstanta kecepatan (k1) 0,0108 ml/mg.dtk dengan kapasitas serap (qo) 0,677 mg/g. Kata kunci: limbah industri laundry, phosphat, adsorpsi, karbonaktif dari sampah plastik Universitas Diponegoro 2014-03-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/7226 10.14710/presipitasi.v10i1.30-40 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 10, No 1 (2013): Vol. 10 No. 1 (2013); 30-40 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 10, No 1 (2013): Vol. 10 No. 1 (2013); 30-40 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/7226/5894

oai:ojs.ejournal.undip.ac.id:article/53626 2023-08-18T02:24:32Z presipitasi:RCS

The Distribution of Dengue Fever Case Based on Environmental Factors using Spatial Analysis Hartini, Meirisa Ayu Tunggul Pawenang, Eram Public Health; Environmental Health; Vector Control Dengue fever; environmental factors, GIS, spatial analysis Dengue hemorrhagic fever (DHF) cases in the working area of Margorejo Health Center increased significantly from seven (2021) to 66 (September 2022). One of the efforts to anticipate the disease is acknowledging the distribution pattern of DHF using GIS. This study proposes to reveal the spatial pattern of case distribution, mapping of the vulnerable area, and overlay of LFP (larvae-free rate) related to DHF in the determined working area of Margorejo Health Center. This study was descriptive. The population was patients of DHF. The selected samples were 66. Data were analyzed utilizing univariate and spatial analyses, based on the Average Nearest Neighbor statistical analyses, p-value = 0.001, Z-score = -7.078, and NNI = 0.54<1. These results indicate a clustered spatial pattern, primarily in densely populated areas. The distribution is seen in the buffer area of 250 meters, 750 meters, and 800 meters. The dengue case intensity, population density, and buffer area determine vulnerable areas. Based on the elaborated maps, further, follow-ups related to countermeasures and prevention of DHF are expected to be carried out in the determined area. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/53626 10.14710/presipitasi.v20i2.345-355 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 345-355 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 345-355 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/53626/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20786 2020-04-17T11:36:46Z presipitasi:RSA

STUDI PENGELOLAAN SAMPAH PLASTIK DI PANTAI KUTA SEBAGAI BAHAN BAKAR MINYAK Wedayani, Ni Made Teknik Lingkungan plastik; bahan bakar; hydrocracking; thermal cracking; catalytic cracking Sampah plastik merupakan salah satu indikator pencemar pantai, terlebih pada musim tertentu sampah plastik di lautan akan singgah ke tepi pantai sehingga mengganggu fungsi pantai sebagai tempat rekreasi. Permasalahan sampah ini juga menjadi masalah bagi sebagian pantai di Bali termsuk Pantai Kuta. Sebagai salah satu ikon wisata Bali sudah seharusnya Pantai kuta terbebas dari sampah plastik, sehingga pengolahan sampah plastik dirasa perlu untuk diusahakan. Adapun alternatif penanganan sampah plastik yang saat ini banyak diteliti dan dikembangkan adalah mengubah sampah plastik menjadi bahan bakar. Mengubah sampah plastik menjadi bahan bakar minyak dapat dilakukan dengan proses cracking. Ada tiga macam proses yaitu hydro cracking, thermal cracking dan catalytic cracking. Bahan bakar dihasilkan dari cracking sampah plastik tergantung pada jenis plastik, proses retak yang digunakan, katalis jenis, suhu pyrolisis dan suhu kondensor. Bahan bakar dari sampah plastik ini diharapkan dapat mensubstitusi bahan bakar solar. Selain diubah menjadi bahan bakar, plastik juga dapat diolah menjadi bahan pembuat karbon aktif Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20786 10.14710/presipitasi.v15i2.122-126 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 122-126 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 122-126 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20786/14085 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/64483 2025-12-04T00:06:38Z presipitasi:RCS

The Dynamics Impact of Urban Area on the River Health in Surakarta City Firdausi, Eyda Matin, Hashfi Hawali Abdul Budiyono, Budiyono Wahyono, Yoyon Othman, Nur Hidayati Ilmu Lingkungan; Pencemaran Lingkungan Urbanization; river health; evaluation Surakarta City is traversed by the Bengawan Solo River Sub-Basin which includes Kali Pepe River, Gajah Putih River, Kali Anyar River, Jenes River, and Premulung River. This condition results in the main burden of river water pollution coming from anthropogenic activities, both domestic and industrial. This study aims to examine the influence of urban area dynamics on river health with a case study of Surakarta City. This study used qualitative descriptive method. Data collection was carried out through observation techniques, and depth interviews. The results showed that there are three factors that affect river health, namely population increase, industrial and domestic activities, and public perception and participation. Surakarta City is one of the areas that contributes to river pollution from moderate to severe levels. However, there have been many efforts to evaluate river health by the local government, namely by normalizing riverbanks, controlling waste pollution, and other river management programs.  Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64483 10.14710/presipitasi.v22i1.209-220 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 209-220 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 209-220 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64483/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/40478 2022-12-14T20:16:03Z presipitasi:RCS

Application of Water Conservation Concept in X Apartment Bogor Regency Wardhani, Eka Putri, Windya Sefniza Teknik Lingkungan Apartment; water conservation; water recycle The increase of population in Bogor Regency is directly proportional to the rapid development of residential building construction, one of which is apartment buildings. This resulted in the need for clean water also increased. Water conservation is an effort to maintain the availability of clean water in sufficient quality and quantity to serve the current and future needs of clean water. The application of the concept of water conservation in Apartment X in Bogor Regency can be done using WAC 2 (Water Fixtures) and WAC 3 (Water Recycle). Apartment X building has a building population of 998 people with daily clean water needs of 91,545 liter/day. The wastewater generated by the apartment building is 73,236 liter/day. It is estimated that the implementation of water conservation could save the use of clean water by 28.08% or around 25,701.42 liter/day. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/40478 10.14710/presipitasi.v19i1.137-147 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 137-147 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 137-147 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/40478/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10958 2016-05-04T09:08:33Z presipitasi:RVA

POLA PERSEBARAN NITRAT DAN PHOSPHAT DENGAN MODEL AQUATOX2.2 SERTA HUBUNGAN TERHADAP TANAMAN ENCENG GONDOK PADA PERMUKAAN DANAU (STUDI KASUS DANAU RAWA PENING KABUPATEN SEMARANG) Budihardjo, Mochamad Arief Huboyo, Haryono Setiyo Environmental Engineering Rawa Pening, Aquatox2.2, EncengGondok, Nutrien Rawa Pening meets with environment degradation like other lakes in Indonesia which is caused by pollutant from the outside especially nitrate and phosphate. Degradation that is happened in this  time is  water  hyacinth  blooms  (enceng  gondok)  on  the  surface  of  the  lake.  This  makes Rawa Pening’s function become annoyed such as  PLTA, tourism, fishery, and irrigation. This degradation keeps  going  and  tends  to  increase  so  that  it  is  necessary  to  do  nitrate  and phosphate monitoring for next time. The taking of sample has done at three points: upstream (S1),  middle (S2), and  downstream  (S3)  which  are  used  as  an  observed  data.  Method  used  research is predicting nitrate and phosphate concentration for ten years later by Aquatox 2.2. Model  validation  done  with compare  observed  result  and  model  result.  Mean  error  from  this validation  less  than  5%  so that  the  model  supposed  describe  the  field  conditions.  Simulation model  result  that  obtained for  ten  years  later  are  nitrate  0,037  mg/L  (S1);  0,035  mg/L  (S2); 0,032 mg/L (S3) and phosphate 0,296 mg/L (S1); 0,274 mg/L (S2); 0,262 mg/L (S3). Dispersion pattern of simulation model result made by dividing lake into three segment, then search current velocity  to  get  dispersion distance.  This  pattern  showed  that  nitrate  and  phosphate concentration progressively decline from S1 to S3. Based on this pattern is knowable enceng gondok  amount  estimation  also  progressively decline  from  S1  to  S3.  The  calculation  sum  of enceng gondok estimation in upstream is about 66 plants and in downstream is about 43 plants. The width of enceng gondok progressively decline according to the amount of enceng gondok in every contour. But the density of enceng gondok not decline because the differences of every contour  area.  Support  energy  of  Rawa  Pening  surface area  to  enceng  gondok  is  about 180.594,59 m² and support energy of the  enceng gondok’s total is about 14.054 plants. Wet longitudinal section daily loads of Rawa Pening is about 6.319.405,41 m². Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10958 10.14710/presipitasi.v3i2.58-66 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 58-66 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 58-66 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10958/8648

oai:ojs.ejournal.undip.ac.id:article/58792 2024-06-14T22:00:52Z presipitasi:RSA

Study of the Effect of Adding Eco-Enzyme to the Process of Decomposing Organic Waste on the Quality of Compost, Leachate, and Methane Gas Production Sarminingsih, Anik Sumiyati, Sri Syafrudin, Syafrudin Alfarisi, Irfan Setiawan, Risky Andika, Axelino Farrell Balqis, Mustika Teknik Lingkungan Organic waste; eco-enzyme; compost; leachate; methane gas Waste generation is increasing along with the increase in population and human living needs. The most dominant waste composition in Indonesia is organic waste, which accounts for 53.97% of the total waste. Eco-enzyme is one of the waste utilization products that has the potential to become an activator for the decomposition process and reduce the environmental effects of waste decomposition. The aim of this research is to analyse the micronutrient content of compost, reduce leachate toxicity, and accelerate the production of methane gas resulting from decomposition using eco-enzymes. The method used was an experimental method (trial) to obtain primary data from laboratory test results during 28 days of research. The research results show that, in general, there is a significant difference in the quality of compost in organic waste that uses eco-enzyme compared to that that does not use eco-enzyme. The results of measuring the quality of the leachate resulting from decomposition show that the quality of the leachate that uses eco-enzyme is better and has lower toxicity than without using eco-enzyme (control). In the production of methane gas, the results show that methane gas production in decomposition using eco-enzymes reaches the methanogenesis process more quickly. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58792 10.14710/presipitasi.v20i3.655-668 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 655-668 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 655-668 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/58792/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/25616 2020-08-30T23:24:09Z presipitasi:RSA

Potential and Effects of Banana Stems as Filter Media in Motor Vehicle Washing Wastewater Treatment Potensi dan Pengaruh Batang Pisang Sebagai Media Filter Pada Pengolahan Air Limbah Pencucian Kendaraan Bermotor Kusumawardani, Yustika Subekti, Sri Soehartono, Soehartono Teknik Lingkungan wastewater; filtration; filter media; banana stem Teknik Lingkungan air limbah; filtrasi; media filter; batang pisang; Wastewater vehicle washing that discharged directly into water bodies can increase pollution levels. Wastewater treatment of small-scale vehicle washing businesses must be efficient, no need large areas, easy to operate and economical. The alternative technology is using simple wastewater filtration system. Banana stems can be used for filter media. Previous studies mention banana stems have cellulose content and have high hygroscopic ability. High cellulose content allows the potential to be used as an absorbent media. Hygroscopic properties are useful for absorbing harmful inorganic chemicals. The study was conducted by making a filtration reactor using banana stem filter media with a variation of residence time and filter media thickness. Sample testing by analyzing COD, TSS and Detergent parameters. The test results significant decrease in TSS and detergent parameters. The highest percentage decrease in TSS reached 91% and detergent 96%. COD decreased during the filtration treatment directly, but after that increased with the length of duration. This is due to biological influence and the high percentage of organic matter and biomass of banana stems. It can be concluded that the banana stem potential as a filter media for direct wastewater treatment and effective in reducing TSS and detergents for washing vehicles wastewater.  Air limbah pencucian kendaraan bermotor yang dibuang langsung ke badan air dapat meningkatkan kadar pencemaran. Pengolahan air limbah usaha pencucian motor skala kecil haruslah efisien, tidak memerlukan lahan luas, mudah dioperasikan serta ekonomis. Alternatif teknologi pengolahan air limbah untuk usaha pencucian motor skala kecil adalah menggunakan sistem filtrasi sederhana. Batang pisang dapat dimanfaatkan sebagai media penyaring. Penelitian sebelumnya menyebutkan batang pisang memiliki kandungan selulose serta memiliki kemampuan higroskopis tinggi. Kandungan selulosa yang tinggi memungkinkan potensi dijadikan sebagai media penyerap. Sifat higroskopis bermanfaat menyerap bahan kimia anorganik berbahaya. Penelitian dilakukan dengan membuat reaktor filtrasi menggunakan media filter batang pisang dengan variasi waktu tinggal dan ketebalan media filter. Pengujian sampel dilakukan dengan menganalisis parameter uji COD, TSS dan Deterjen. Hasil uji menunjukan penurunan yang signifikan pada parameter TSS dan deterjen. Besarnya presentase penurunan tertinggi pada parameter TSS mencapai 91% dan deterjen 96%. Parameter COD mengalami penurunan saat perlakuan filtrasi secara langsung, namun kemudian meningkat seiring waktu tinggalnya. Hal tersebut karena pengaruh biologis batang pisang serta tingginya presentase bahan organik dan biomassa batang pisang. Dapat disimpulkan bahwa batang pisang berpotensi sebagai media filter pengolahan air limbah secara langsung dan hasilnya cukup efektif untuk menurunkan parameter TSS dan deterjen air limbah pencucian kendaraan bermotor. Universitas Diponegoro 2019-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/25616 10.14710/presipitasi.v16i3.196-204 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 196-204 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 196-204 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/25616/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/70302 2025-12-13T04:17:17Z presipitasi:RSA

Utilization of Tofu Wastewater as a Fish Supplement: Impact on Fish and Economic Analysis Aufa, Muhammad Azri Utama, Gemilang Lara Mansyur, Mansyur Subhan, Ujang Sukarman, Irwa Sukma bin Ilmu Lingkungan Tofu, liquid tofu waste, fermentation, fish supplement, economic analysis Tofu liquid waste produced by the tofu industry in rural areas is often not reprocessed and has the potential to cause pollution if left untreated, so it is necessary to utilize tofu liquid waste which is the main idea in this research. The aim of this research is to analyze the potential for utilizing tofu liquid waste into fish supplements through the fermentation process with EM4 and Nitrobacter Plus and analyzing the economic and environmental benefits of utilizing tofu liquid waste into fish supplements. This research was conducted using an experimental method using a Completely Randomized Design (CRD) with 4 treatments and 3 replications. This research result showed that the provision of fish supplements from fermented tofu liquid waste has no significant effect on absolute weight growth, absolute length growth, specific growth rate, feed conversion ratio and survival rate. Based on the results of the economic analysis, the utilization of tofu liquid waste as a fish supplement was considered economically feasible with a Benefit Cost Ratio (BCR) of 1.285, Net Present Value (NPV) of Rp. 16,320,630,763 and Return on Investment (ROI) of 48.4%. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70302 10.14710/presipitasi.v22i3.950-963 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 950-963 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 950-963 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70302/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10980 2016-05-21T15:44:06Z presipitasi:RVA

STUDI POTENSI PENGOMPOSAN SAMPAH KOTA SEBAGAI SALAH SATU ALTERNATIF PENGELOLAAN SAMPAH DI TPA DENGAN MENGUNAKAN AKTIVATOR EM4 (EFFECTIVE MICROORGANISM) Budihardjo, Mochamad Arief Environmental Engineering Landfill, organic city waste, effective microorganism (EM4), sawdust, cow manure, C-organic, N-total, ratio C/N, P-total, K-total, Temperature, pH and reduction In  general,  waste  management  in  most  of  City  in  Indonesia  still  boundary  on collecting, transporting  and  dumping.  Solid  waste  are    collected,  transported  and  pulled  up  in landfill without any treatment. Needed a new paradigm that landfill is not a final estuary of city waste but place management of city waste. One of the problem faced is amount arise of organics city waste. Starting from this situation hence needed handling to arising organic waste. Composting represent  one  of  the  alternative  in  the  effort    to  reduce  the  amount  of  organics city  waste through  the  make  up  of  value  utilize  waste  become  worthwhile  compost  as fertilizer.  Natural composting of organics waste took a time to process. Effective microorganism (EM4) applicated in  organics  waste  composting  in  landfill  is  used  to  speed  up  compost  decomposition and improve the compost quality. Composting use all kinds of city waste that enter to the landfill, like residue of vegetables, fruits, leaves and sawmill waste. Composting city waste wrap up addition material that  is sawdust and  cow  manure. At this research, compost  variation  include natural control variation, organic waste and EM4, organic waste : sawdust and EM4 with comparation 7:3; 1:2; 5:7; 5:4 and 7:6. Organic waste:  cow manure and EM4 with comparition 1:2; 2:5; 6:5 and 7:6. Result of this research indicate that the overall compost variation has fulfilled standard of  quality  matured  compost  according to  SNI  19-7030-2004t.  Compost  with  EM4  has relative good  quality  than  natural  compost.  Besides,  overall  of  compost  variation  have  fulfilled hara standard of crop requirements, low cost of producing and yield high level of city waste reducing. Compost  variation of 7 organic city waste : 3 sawdust represent  most applicable composition compost  at  Boyolali  landfill  with  C-organic  24,52  %,  N-total  1,72  %,  Ratio  C/N 14,25,  P-total 1,20 %, K-total 1,66 %, Temperature 27,70 0C and pH 7,30 also compost level reduction 61,6 %. Universitas Diponegoro 2006-08-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10980 10.14710/presipitasi.v1i1.25-30 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 25-30 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 25-30 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10980/8671

oai:ojs.ejournal.undip.ac.id:article/61829 2025-05-18T20:36:13Z presipitasi:RCS

Study of Sensitivity Index for Landslide Disaster in Gunungpati Sub-district, Semarang City Pambayun, Mahendra Ken Helmi, Muhammad Muhammad, Fuad Ilmu Lingkungan Sensitivity; landslide; vulnerability; mitigation Sensitivity is one of the parameters of the vulnerability in a disaster. Gunungpati Sub-district is one of the sub-districts that had a high-intensity landslide in Semarang city. Assessment of the sensitivity index to disasters is necessary to reduce vulnerabilities and to become a consideration for policy-taking factors in the emergence of disasters. The sensitivity index uses the population density, building density, sex ratio, dependency ratio, poverty rate, and education level. The method used is a weighted scoring method for each sensitivity variable. The sensitivity index of the Gunungpati Sub-district on landslide ranges from 2.6 - 2.8. Sensitivity levels of the Gunungpati Sub-district are classified into three classes there are little sensitive, moderately sensitive, and sensitive classes. Five villages have high sensitivity values. Special attention from the government is needed to increase the capacity of the population in terms of social and economic aspects to reduce the high sensitivity value in the area. Mitigation that can be done by the government related to the sensitivity of this area can be through policies such as capital assistance and training for vulnerable groups, equalization of employment, making policies, and strict control of development permits in areas at risk of landslides. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61829 10.14710/presipitasi.v21i1.276-289 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 276-289 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 276-289 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61829/pdf_1 Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/30985 2020-12-16T21:40:26Z presipitasi:RSA

Tingkat Korosifitas Air Permukaan Hilir Rawa Pening pada Musim Kemarau dan Penghujan The Corrosivity Level of Rawa Pening Downstream Surface Water in the Dry and Rainy Season Purwono, Purwono Oktiawan, Wiharyanto Istirokhatun, Titik Nurfaiz, Agus Teknik Lingkungan korosifitas; air permukaan; rawa pening; PLTA; Total dissolved solid, klorida Environmental Engineering corrosivity; air surface; reel swamp; Hydropower plant; Total dissolved solid, chloride Korosi merupakan faktor penting yang dapat mempengaruhi kualitas air yang digunakan oleh manusia. Hal ini dapat berdampak pada kesehatan dan faktor ekonomi akibat kerusakan peralatan distribusi air tersebut. Tingkat korosifitas air permukaan sebagai air baku air minum menjadi penting untuk diteliti sebelum air tersebut masuk ke proses pengolahan maupun penggunaan lain seperti pembangkit listrik tenaga air (PLTA). Penelitian ini bertujuan untuk mengetahui tingkat korosifitas air permukaan rawa pening pada musim kemarau dan penghujan pada tahun 2018. Sampling air permukaan dilakukan di hilir rawa pening, kemudian dilakukan uji laboratorium terhadap parameter korosifitas air. Hasil penelitian menunjukkan bahwa air permukaan di hilir rawa pening tidak bersifat korosif dilihat dari parameter pH, suhu, TDS, dan Klorida. Nilai pH pada musim kemarau (J1) sebesar 7,00, sedangkan pada penghujan (J2) sebesar 7,77 dan bersifat tidak korosif. Nilai suhu sebesar 28,6oC dan 29,3oC masing-masing pada musim penghujan dan kemarau. Hasil pengukuran TDS pada musim kemarau lebih rendah dibanding musim penghujan dengan selisih 12 mg/l. Pada musim kemarau sebesar 141 mg/l dan musim penghujan sebesar 153 mg/l. Kenaikan ini kemungkinan berasal dari material geologi (geologic materials) seperti batuan dan tanah di sekitar danau rawa pening. Sumber TDS lainnya antara lain dari urban lands, road deicers, cultivated lands, dan pasture lands. Kegiatan manusia juga berdampak pada kenaikan TDS diperairan diantaranya kegiatan domestik (mandi dan cuci), perdagangan, dan industri. Kadar klorida sebesar 2,19 mg/l dan 3,19 mg/l. Penelitian ini memberi berimplikasi kepada pihak pengguna air danau rawa pening. Korosifitas air dipengaruhi juga oleh parameter mikrobiologi yang perlu diteliti lebih lanjut. Corrosion is an important factor that can affect the quality of air used by humans. This has an impact on health and economic factors, damage to air distribution equipment. The level of corrosivity of surface water as raw water for drinking water is important to be examined before the water enters the processing process or other uses such as hydroelectric power (PLTA). This study aims to measure the level of water corrosivity on the surface of the Pening swamp during the dry and rainy seasons in 2018. Taking air samples on the surface of the Pening swamp, then carrying out laboratory tests on the parameters of air corrosivity. The results showed that the downstream surface of the Pening swamp was not corrosive in terms of pH, temperature, TDS, and chloride parameters. The pH value in the dry season (J1) is 7.00, while in the rainy (J2) it is 7.77 and is non-corrosive. The temperature values are 28.6oC and 29.3oC in the rainy and dry seasons, respectively. The TDS measurement results in the dry season are lower than the rainy season by a difference of 12 mg / l. In the dry season it is 141 mg / l and the rainy season is 153 mg / l. This increase probably came from geological material (geological material) such as rocks and soil around the Pening Swamp Lake. Other sources of TDS include urban land, road workers, agricultural land and pasture. Human activities also increase in the increase of TDS in water including domestic activities (bathing and washing), trade, and industry. Chloride levels were 2.19 mg / l and 3.19 mg / l. This research has implications for the users of Sungai Pening Swamp. The corrosivity of air measurement is also by microbiological parameters which need to be investigated further. Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/30985 10.14710/presipitasi.v17i3.215-222 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 215-222 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 215-222 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/30985/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/70864 2026-04-21T07:44:25Z presipitasi:RCS

Biodegradability Potential Measurement of Organic Waste to Enhance Compost Quality Budiarti, Gina Kamali, Siti Raudhatul Widiyanti, Astrini Ernawati, Ernawati Harfadli, Muhammad Ma'arij Environmental Science; Solid Waste Management Compost quality; compost raw materials; decomposition; organic waste ; valorization; universities This study aims to analyze the volume, weight, composition of organic waste, the characteristics of C/N, moisture content, and biodegradability fraction as a reference for biodegradability potential. Using the load count analysis method—based on modifications of SNI 19-3964-1994 and the UN-Habitat Wise Waste Cities Tools (2010)—researchers measured the daily waste generation, which amounted to approximately 11,967±2,528 liters in volume and 1.91±0.4 tons in weight. The organic waste primarily consisted of dry leaves (53%), household waste (25%), green manure and grass (17%), and vegetable waste (5%). Laboratory tests revealed the waste had a carbon-to-nitrogen (C/N) ratio of 62.07%, a moisture content of 66.76%, and a biodegradability fraction of 7.6%. These values do not align with raw material composting standards, indicating the need for waste treatment before composting. To enhance the composting process, the study recommends separating green (nitrogen-rich) and brown (carbon-rich) materials, prioritizing the green portion as the main composting input, and drying the material initially to reduce moisture to 40–45%. Composting is highlighted as a simple, eco-friendly solution for managing organic waste, contributing to soil fertility, structure improvement, and supporting sustainable agricultural practices. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70864 10.14710/presipitasi.v23i1.258-271 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 258-271 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 258-271 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/70864/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/56952 2023-08-18T02:24:32Z presipitasi:RSA

Stakeholder Pressure and Its Effect on Sustainability Report Wahyuningrum, Indah Fajarini Sri Ihlashul’amal, Muhammad Hidayah, Retnoningrum Widhi Rizkyana, Fitrarena Sustainability reporting; sustainable development goals; stakeholder pressure; Indonesia The quality of corporate sustainability reports in Indonesia is unfortunately found to be lacking, with a rating of only 53.6%. This is significantly lower compared to the average of other Southeast Asian countries. However, stakeholders are becoming more aware of their role in encouraging public companies to disclose sustainability information. This study intends to look at the quality of sustainability reports released by Indonesian public firms, as well as the impact of stakeholder pressure on these reports' quality. Data from annual and sustainability reports of businesses listed on the Indonesia Stock Exchange between 2016 and 2020 are used in the research, which is based on GRI's G4 guidelines and the GRI Standards 2016. The study looks at numerous stakeholder pressures, including pressure from creditors, media exposure, the Big Four accounting firms, employees, consumers, environmentally sensitive industries, and shareholders. The results show that companies with significant media coverage typically produce sustainability reports of high quality. However, pressure from other stakeholders has not been found to have a significant impact on the quality of these reports. This study provides valuable insights into the state of sustainability reporting in Indonesia and aims to encourage stakeholders to actively participate in promoting a sustainable industry.    Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56952 10.14710/presipitasi.v20i2.494-506 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 494-506 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 494-506 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56952/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/49811 2023-01-04T02:30:50Z presipitasi:RCS

Relationship of Noise Levels with Hypertension in Textile Workers in Semarang City Arumdani, Intan Sekar Setiani, Onny Joko, Tri Raharjo, Mursid Adi, Sakundarno Environmental Health, Public Health, Blood pressure; hypertension; industry ; noise; textile workers; threshold value Noise is associated with a risk factor for several cardiovascular diseases, one of which is hypertension. Hypertension is estimated to cause 7,5 million deaths, or about 12.8% worldwide. The textile industry is exposed to high noise intensity because it constantly uses machines. The results of a preliminary study of noise measurement showed that the average at 6 points reached 90 dBA. The Threshold Value for the noise level contained in permitted government regulation is ≤ 85 dBA for duration of exposure of 8 hours. The measurement results exceed the threshold value. This study was analytical observational research with a Cross-sectional study design. The sample in this study was 74 workers textile industry in Semarang city. The average noise intensity measurement in the entire machine area of spinning unit 5 of the Semarang City Textile Industry is 87.49 dBA. Based on statistical test analysis, the results of noise levels (p-value = 0.037), working period (p-value = 0.015), and continuity of use of ear protection equipment (p-value = 0.048) and duration of exposure per day (p-value 0.510) were obtained. There is a significant relationship between noise level, working period, and continuity of Ear Protection Equipment use with the incidence of hypertension. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49811 10.14710/presipitasi.v19i3.638-650 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 638-650 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 638-650 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49811/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11105 2020-04-17T11:32:32Z presipitasi:RVA

INVESTIGASI PENGARUH KONDISI LALU LINTAS DAN ASPEK METEOROLOGI TERHADAP KONSENTRASI PENCEMAR SO2 DI KOTA SEMARANG Istirokhatun, Titik Agustini, Ita Tetriana Sudarno, Sudarno Environmental Engineering SO2 concentration, meteorology, number of vehicle The  presence  of  air  pollution  in  ambient  air  is  closely  related  to  the incidence  of  adverse reactions affecting human health. One of harmful pollutants and potentially major cause health problems is sulfur dioxide (SO 2 ). The number of vehicles that are passing and queuing on the crossroads  because  of  traffic light can  affect  the  concentration  of  SO 2 .  Besides,  in  these locations  there  are a lot of road users  which  are  potentially  exposed  by  contaminants, so information about the concentration of SO 2  is important to know. This study aimed to investigate the  impact  of  meteorological  factors  and  the  number  of vehicles  on  SO 2   concentrations. Impinger was used for air sampling, and pararosaniline method was used for determining SO 2  concentration. Sampling and calculation  of the number of passing vehicles were performed 3 times ie in the morning, afternoon and evening. Based on the results of the study, the highest concentrations of SO 2  were on the range of 15-21 mg/Nm3. Universitas Diponegoro 2016-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11105 10.14710/presipitasi.v13i1.21-27 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 1 (2016): Maret 2016; 21-27 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 1 (2016): Maret 2016; 21-27 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11105/8729

oai:ojs.ejournal.undip.ac.id:article/64800 2025-05-18T20:39:07Z presipitasi:RSA

Implementing Biodrying Method for Waste Processing in Salatiga City Hardyanti, Nurandani Zaman, Badrus Bagaskhara, Rezza Anferditya Hasfiawan, Harsya Giras tenik lingkungan Waste Processing Planning; Refuse Derived Fuel; Biodrying; RDF; Salatiga City Waste processing in Salatiga City could have been more optimal. It can be seen from the data from the Salatiga City Environment Service that the waste processing facility in the form of an active waste processing site with reduce-reuse-recycle is only one out of seven registered units. This has the potential to cause accumulation at the final processing site. Therefore, it is necessary to develop an effective waste processing facility. Planning for waste processing using the biodrying method can effectively process waste that produces products in the form of Refuse Derived Fuel (RDF)[1] [Ma2] . Planning for waste processing is carried out until 2032 in two service areas: Service area 1 (Argomulyo District and Tingkir District) and service area 2 (Sidorejo District and Sidomukti District). The amount of waste generated by service area 1 reaches 49.33 tons/day and 522.67 m3/day, while service area 2 reaches 49.62 tons/day and 414.01 m3/day. Planning for waste processing using the drying method includes picking bay units, shredding, drying, screening, and loading RDF.[3] [Ma4]  RDFs potential in 2032 as a result of waste processing in service area 1 is 11159.03 tons/year with sales of Rp. 7,270,755,009 / year and in service area 2 it is 10,471.09 tons / year with sales of Rp. 6,822,524,206 / year Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64800 10.14710/presipitasi.v21i3.696-711 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 696-711 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 696-711 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64800/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/55752 2025-05-18T20:36:13Z presipitasi:RCS

Spatial Planning for Agricultural Development Based on Carrying Capacity of Ecosystem Services in The Melolo Transmigration Area, East Sumba Rojikhah, Afifatur Leksono, Amin Setyo Rachmansyah, Arief Teknik Lingkungan; Rekayasa Lingkungan; Pengelolaan Sumberdaya Lingkungan dan Pembangunan Environmental; carrying capacity; ecosystem services; provisioning services Transmigration is one of the government programs that aim to create a new growth center by establishing an activity center through the development of basic business patterns. Development of the main business pattern is carried out through the management of land resources for agriculture. Improper management of land resources can lead to a decrease in environmental quality. Therefore, it is necessary to know the potential carrying capacity of ecosystem service to plan agricultural development. Parameters are used to analyze the carrying capacity of ecosystem services as provisioning based on environmental services for water and food provisioning. The environmental service assessment method for water and food provisioning is calculated using weighting and scoring. The total value of the carrying capacity of ecosystem services as provisioning is obtained from the calculation of the two parameters using the Simple Additive Weighting method. The results of the analysis show that the value of the carrying capacity of ecosystem service as provisioning is classified as very low. This indicates that the capability of the land for agricultural development is very low. Agricultural development requires conservation actions to increase the carrying capacity of ecosystem service. Recommendations for conservation actions are carried out through land use arrangements. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55752 10.14710/presipitasi.v21i1.223-236 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 223-236 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 223-236 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55752/xml Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4928 2013-05-14T23:36:06Z presipitasi:RVA

ANALISIS KUALITAS AIR DAN STRATEGI PENGENDALIAN PENCEMARAN AIR SUNGAI BLUKAR KABUPATEN KENDAL Samudro, Sudarno Agustiningsih, Dyah Sasongko, Setia Budi Environmental Engineering, Environment AHP, indeks pencemaran, pengendalian pencemaran, status mutu air Sungai Blukar yang merupakan Sungai Utama di DAS Blukar, yang berfungsi sebagai tempat pengaliran air kondisinya tidak dapat dipisahkan dari aktivitas manusia di Daerah Aliran Sungai. Kondisi Sungai Blukar saat ini diperkirakan telah mengalami penurunan kualitas air disebabkan berbagai aktivitas manusia yang berada di daerah tangkapan airnya. Penelitian ini bertujuan untuk menganalisis kualitas air Sungai Blukar berdasarkan baku mutu kualitas air sungai menurut PP Nomor 82 Tahun 2001 dan merumuskan prioritas strategi pengendalian pencemaran air sungai yang perlu dilakukan. Sungai sebagai daerah penelitian ditetapkan sepanjang 18,70 km. Kualitas air sungai diukur dan diamati pada 7 titik pengambilan sampel. Analisis kualitas air dilakukan dengan menggunakan metode indeks pencemaran. Analisis prioritas strategi pengendalian pencemaran air dengan AHP. Hasilnya adalah (1) parameter BOD di titik 3,4,5,6 dan 7 serta parameter COD di titik 7 telah melebihi baku mutu air sungai Kelas II menurut PP nomor 82 Tahun 2001. ( 2) Telah terjadi penurunan kualitas air Blukar dari hulu ke hilir yang ditandai dengan nilai indeks pencemaran yang cenderung semakin meningkat berdasarkan kriteria sungai Kelas II menurut PP nomor 82 Tahun 2001. Nilai indeks pencemaran berkisar antara 0,49 sampai 3,28. Status mutu air sungai Blukar telah tercemar dengan status cemar ringan. (2) untuk menjaga kualitas air pada kondisi alamiahnya diperlukan strategi pengendalian pencemaran air sungai yang difokuskan pada  (a) peningkatan peran masyarakat baik masyarakat umum, petani maupun industri dalam upaya pengendalian pencemaran air. (b) peningkatan koordinasi antar instansi yang berkaitan dengan pengendalian pencemaran air, serta (c) mengintegrasikan kebijakan pengendalian pencemaran air dalam penataan ruang. Universitas Diponegoro 2012-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4928 10.14710/presipitasi.v9i2.64-71 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 2 (2012): Vol 9, No 2 (2012); 64-71 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 2 (2012): Vol 9, No 2 (2012); 64-71 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4928/4465

oai:ojs.ejournal.undip.ac.id:article/55179 2024-06-28T05:59:51Z presipitasi:RSA

Examining the Water Quality Situation in Klampok River, Semarang through the Application of the NSF-WQI (National Sanitation Foundation – Water Quality Index) Model Syafrudin, Syafrudin Sarminingsih, Anik Juliani, Henny Wahyu Sejati, Anang Surya Ramadan, Bimastyaji Budihardjo, Mochamad Arief Dwi Nugraha, Winardi Klampok river; pollution index; water quality; NSF-WQI The Klampok River is one of the rivers that crosses the Bandungan, Bawen, Bergas and Pringapus Districts. The increase in the number of residents in the river basin which is not matched by the availability of land encourages the conversion of land functions that are not in accordance with their designation. The existence of the Klampok River as a water body receiving wastewater resulting from anthropogenic activities has caused the Klampok River to become polluted. Thus, it is important to study the water quality and water quality status of the Klampok River for nature conservation. This study aims to determine the water quality status of the Klampok River using the water quality index method, namely the National Sanitation Foundation – Water Quality Index (NSF-WQI) with reference to class II river water quality standards. NSF-WQI is a method that uses several specific parameters to determine river water quality.DO, fecal coliform, pH, BOD, nitrate, phosphate, temperature, turbidity, and total solids.The 2018 water quality index using the NSF-WQI method is in the range54.13 – 65.38with medium-good quality status. Meanwhile, the water quality index for 2019 using the NSF-WQI method is within the range35.47 – 66.60with moderate status, except for sampling point 6 which has bad status. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55179 10.14710/presipitasi.v20i2.247-253 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 247-253 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 247-253 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55179/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/18007 2020-04-17T11:36:01Z presipitasi:RSA

Pemilihan Metode Analisis Debit Banjir Rancangan Embung Coyo Kabupaten Grobogan Sarminingsih, Anik Teknik Lingkungan, Sumberdaya Air banjir rancangan, kala ulang, hidrograf satuan sintetis Debit banjir rancangan merupakan salah satu parameter perencanaan bangunan air. Besaran debit banjir rancangan akan sangat berpengaruh pada dimensi serta tingkat stabilitas struktur bangunan. Rencana embung Coyo terletak di sungai Lampis, secara administrasi berada di antara desa Sidorejo dan desa Mlowokarangtalun kecamatan Pulokulon Kabupaten Grobogan. Untuk merencanakan dimensi bangunan pengelak digunakan Q25th, sementara untuk bangunan pelimpah digunakan Q100th. Tidak tersedianya data debit pengamatan pada lokasi kajian mengakibatkan analisis debit banjir dilakukan dengan model hujan-limpasan berdasarkan karakteristik DAS. Adanya fungsi tampungan maka diperlukan banjir rancangan dalam bentuk hidrograf. Beberapa metode analisis hidrograf yang sering digunakan di Indonesia di antaranya model Hidrograf satuan sintetik (HSS) Snyder dan HSS Nakayasu. Pemilihan besaran debit banjir dengan membandingkan hasil analisis dari berbagai metode tersebut dengan kapasitas penampang sungai (full bank capacity), dengan debit rencana kala ulang 2-5 tahun. Berdasarkan hujan rancangan dan karakteristik DAS Coyo dengan luas 69,56 km2 , metode analisis debit banjir yang paling sesuai adalah HSS Nakayasu. Besarnya debit banjir rancangan Q25th = 255.31m3/det, dan Q100th = 327.70 m3/det. Universitas Diponegoro 2018-03-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/18007 10.14710/jis.%v.%i.%Y.585-595 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 53-61 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 53-61 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/18007/pdf Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/64511 2025-12-04T00:06:38Z presipitasi:RVA

Analysis of Human Activities and Deforestation Impact on Air Quality: a Paper Review Prasetya, Ferdian Adhy Dimyati, Muhammad Verdyansyah, Aprizal Air Quality; Human Activity; Deforestation; Google Earth Engine This paper discusses the relationship between changes in human activities and deforestation with the condition of pollutant concentration parameters in an area using the Google Earth engine (GEE) method. By applying the Systematic Literature Review method, it is expected to provide an explanation of changes in pollutant conditions, such as concentration patterns of CO, NO2, SO2, O3, HCHO, PM2.5, and PM10 as a result of changes in human activity and deforestation. Human activity patterns may change due to certain events or rules that force humans to follow them. A clear example is the lockdown event during the Covid-19 pandemic that resulted in restrictions on human activities, especially outdoor activities. Similarly, deforestation is the process of significant reduction of forest area through tree felling, forest burning, or other land use changes that result in loss of tree cover and alter forest ecosystems. Both of these events impact the environment and air quality in the region, such as affecting air pollution concentrations. In various studies, changes in human activities and deforestation have been shown to have a significant relationship and influence on air quality concentration parameters in a region. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64511 10.14710/presipitasi.v22i1.38-46 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 38-46 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 38-46 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64511/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39941 2022-02-19T00:21:43Z presipitasi:RCS

Rainwater Harvesting Planning using Infiltration Wells in Amlapura City Karangasem Regency Yekti, Mawiti Infantri Yumame, Mecris Mides Harmayani, Kadek Diana ilmu lingkungan Rainwater; soil water conservation; soil permeability; the infiltration well Amplapura is located in the highlands having a potential area of green open land which can absorb rainwater freely into the ground. However, in recent times, land conversion has begun to develop with new housing buildings, Griya Galiran Regency Housing. Furthermore, the effectiveness of the land area is still able to absorb water and maintain groundwater balance. A rainwater harvesting plan (RH) is needed, or, more popularly, rainwater harvesting. In this area. The aim is to provide a portion of residential land space for rainwater infiltration into the pores or soil cavities using the infiltration well method. The results showed that the Griya Galiran Regency Housing had an acceptable sand soil type and absorbed soil quickly, with a soil permeability coefficient (k) of 0.0014 cm/s. Designing the dimensions of the infiltration well at the Griya Galiran Regency Housing with an area of 70 m2 based on SNI 03-2453-2002 for a circular cross-section, an infiltration well with a diameter of 1.2 m with a depth of 2 m is made. In contrast, as a rectangular cross-section, an infiltration well has a side length of 1 m with a depth of 2 m. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39941 10.14710/presipitasi.v18i3.494-503 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 494-503 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 494-503 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39941/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10949 2016-05-03T20:27:35Z presipitasi:RVA

UNJUK KERJA MODIFIKASI SBR AEROB TERHADAP PENYISIHAN COD Junaidi, Junaidi Environmental Engineering active carbon, aerobic SBR, stabilization, COD Sequencing  Batch  Reactor  (SBR)  is  a  modification  process  from  activated  sludge  that has flexibility in its implementation. In aerobic SBR, all phase is in aerobic cycles those are filling phase, reaction  phase,  settling  phase,  drawing  phase  and  idle  phase.  In  this  research,  idle phase  is modified  as  stabilize  phase  where  biomass  is  aerated  for  finite  time  so  sorption capacity    of biomass  back  to  normal  This  research  shows  that  optimum  COD  removal  is achieved  in  one  hour reaction  time  and  stabilization  time  is  6  which  is  97,02  %  using  active carbon and  95,23 % without active carbon. In conclusion, COD removal capabilities with GAC is better than without GAC. Universitas Diponegoro 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10949 10.14710/presipitasi.v2i1.60-65 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 60-65 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 60-65 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10949/8640

oai:ojs.ejournal.undip.ac.id:article/53774 2024-06-14T22:00:52Z presipitasi:RSA

Landfill Leachate Treatment with Ozonation to Improve Biodegradability Junaidi, Junaidi Oktiawan, Wiharyanto Novianti, Komang Dewi Teknik Lingkungan; ilmu Lingkungan; Rekayasa Ilmu Lingkungan Leachate, biodegradability, ozone Leachate is a liquid that comes from processed waste generation so that it contains compounds that are harmful or toxic to the environment. The quality of the leachate obtained included COD: 3,315 mg/l, BOD: 339 mg/l, TSS: 216 mg/l, and color 3,1210 Pt.Co. Waste processing site Temesi has a BOD/COD ratio of 0.11, this value is not suitable for using biological treatment because the biodegradability value is small so it is difficult for microorganisms to degrade existing pollutants. Therefore, it is necessary to have an pretreatment that is used to increase the value of biodegradability, one of which is oxidation using ozone. Ozone has a strong oxidizing value so that it can produce free radicals to break long chains of pollutants so that they become simpler. This research on ozone oxidation resulted in an increase in the BOD/COD ratio from 0,1 to 0.14 with a generator capacity of 36 g/hour. In this study, an ozone generator of 100 G/hour was used which increased the BOD/COD ratio to 0.46 with a final COD yield of 815 mg/l increasing BOD to 379 mg/l, TSS become 157,62 mg/L and color become 23.642 Pt.Co. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/53774 10.14710/presipitasi.v20i3.669-679 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 669-679 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 669-679 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/53774/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/26683 2020-08-30T23:24:19Z presipitasi:RSA

Identification of Waste Flow in Semarang City Through Community-Based Waste Management Identifikasi Aliran Sampah di Kota Semarang Melalui Pengelolaan Sampah Berbasis Masyarakat Ramadan, Bimastyaji Surya Fauziyah, Fita Budihardjo, Mochamad Arief Syafrudin, Syafrudin Teknik Lingkungan waste bank, mass balance, community based solid waste management Teknik Lingkungan bank sampah, neraca massa, pengelolaan sampah berbasis masyarakat Community-based  waste  management  is a form  of  waste  management  recommended  by  the government because  it  is  very  effective  in  creating  a  zero-waste  society.  In  Indonesia,  community-based  waste management can be realized through the development of waste banks at the neighbourhoodlevels. In 2019, the City of Semarang has 48 units of active waste banks. Waste that is managed by the wastebank is plastic, paper and metal. However, there is organic waste which is also managed by several wastebanks. The purpose of this study is to identify and analyze the flow of waste through community-basedwaste management, in this  case of the  waste  bank,  in  the  city  of  Semarang.  The  method  used  is  in-depth  surveys  and  interviews related to the waste bank management system in the city of Semarang. The results showed that the activity of the existing garbagebank was able to reduce waste in the city of Semarang by 0.07% of the total garbage generation  in  the  city  of  Semarang.  This  research  can  be  used  as  a  reference  for  developing  better community-based waste management strategies, especially in Semarang City Pengelolaan sampah berbasis masyarakat merupakan salah satu bentuk pengelolaan sampah yang direkomendasikan oleh pemerintah karena sangat efektif untuk mewujudkan zero waste society. Di Indonesia, pengelolaan sampah berbasis masyarakat ini dapat terwujud melalui pengembangan bank sampah di tingkat RW dan kelurahan. Pada tahun 2019, Kota Semarang teridentifikasi memiliki 48 unit bank sampah yang aktif mengelola sampah masyarakat. Sampah yang dikelola oleh bank sampah adalah plastik, kertas dan logam. Namun demikian, terdapat sampah organic yang juga dikelola oleh beberapa bank sampah. Tujuan dari penelitian ini adalah untuk mengidentifikasi dan menganalisis aliran sampah melalui pengelolaan sampah berbasis masyarakat, dalam hal ini bank sampah, di Kota Semarang. Metode yang digunakan adalah survei dan wawancara yang mendalam terkait sistem pengelolaan bank sampah di Kota Semarang. Hasil penelitian menunjukkan bahwa kegiatan bank sampah eksisting mampu mereduksi sampah di kota Semarang sebesar 0.07% dari total timbulan sampah di Kota Semarang. Penelitian ini dapat digunakan sebagai acuan untuk membangun strategi pengelolaan sampah berbasis masyarakat yang lebih baik, khususnya di Kota Semarang. Universitas Diponegoro 2019-11-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26683 10.14710/presipitasi.v16i3.117-125 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 117-125 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 117-125 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26683/pdf_1 Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/68132 2025-12-04T00:06:42Z presipitasi:RCS

Characteristics of Domestic Wastewater from Shopping Centres, Office Buildings, and Hospitals in Jakarta, Indonesia Herman, Anggit Firdaus, Najmi Pancawati, Juwarin Abidin, Thoriq Studi Lingkungan Domestic wastewater; BOD; COD; shopping center; office building; hospital Understanding the characteristics of domestic wastewater is crucial for designing effective wastewater treatment facilities that comply with regulatory standards. This study examined key parameters, including pH, BOD, COD, TSS, oil and grease, ammonia nitrogen, and total coliform, outlined by Indonesia’s Ministry of Environment and Forestry (MoEF) under their regulation. Samples were collected monthly over a 12-month period from three types of facilities: shopping centers, office buildings, and hospitals. The results indicated significant variability among the sites. The shopping center recorded the highest concentrations of BOD and TSS, with values of 231 mg/L and 366 mg/L, respectively, while the hospital showed elevated COD levels, reaching 725 mg/L. Its processing requires a wastewater treatment plant that aims to reduce various parameters that exceed the threshold based on the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Number P.68 /Menlhk/Setjen/Kum I/8/2016 on Domestic Waste Quality Standards. These findings underscore the need for tailored wastewater treatment approaches based on facility type to mitigate environmental impacts and maintain water quality standards.  Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/68132 10.14710/presipitasi.v22i2.510-527 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 510-527 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 510-527 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/68132/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46991 2023-03-29T21:11:54Z presipitasi:RCS

Greenhouse Gas Emission Reduction Strategies in the Transportation and Solid Waste Sector in Cilacap Regency Hardyanti, Nurandani Samadikun, Budi Prasetyo Saputri, Adinda Ragil Yuwono, Adinda Putra Green house gasses; transportation; solid waste Every year, population growth in Cilacap Regency inevitably results in various impacts in various fields, including transportation and solid waste. The number of motorized vehicles in the Cilacap Regency has increased from 588,283 units in 2017 to 714,533 units in 2020. On the other hand, solid waste generation in Cilacap Regency in 2020 reached 0.22 tons per capita per year. Both activities can potentially reduce the air quality of the Cilacap Regency. One of the causes of the decline in air quality is CO2, CH4, and N2O gases, which can cause global warming. This study aims to inventory and project GHG emission loads, determine mitigation strategies and design regulations related to GHG emission reduction in the transportation and solid waste sector in Cilacap Regency. The method used to inventory GHG emissions in this research is the 2006 IPCC method with Tier 1 and Tier 2 accuracy. Then it is projected for the next ten years with a Business As Usual (BAU) scenario. To determine the selected reduction strategy using SWOT and QSPM analysis. The inventory results and projected GHG emissions in the solid waste sector in 2030 are 109.29 Gg CO2e. 4 GHG emission reduction programs in the solid waste sector could reduce up to 29.49% Gg CO2-e in 2030. Then the BAU scenario GHG emissions in the transportation sector in 2030 reached 21,417 Gg CO2e. The six proposed scenarios were able to produce a percentage of GHG reduction of 7 65% in 2030 or 1,638,409 Tons of CO2e or 1,638 Gg CO2e from 2021-to 2030 with a priority strategy for reducing GHG emissions is increasing pollution buffers by building green open space and non-motorized pathways with a reduced rate of 2%. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46991 10.14710/presipitasi.v19i2.239-250 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 239-250 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 239-250 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46991/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/24994 2020-08-30T22:28:29Z presipitasi:RSA

RETRACTED: Analysis of Physical-Chemical Parameters for Mangrove Ecosystem Rehabilitation in Bungkutoko Island, Kendari City RETRAKSI: Analisis Parameter Fisika-Kimia untuk Kepentingan Rehabilitasi Ekosistem Mangrove di Pesisir Pulau Bungkutoko Kota Kendari Yasin, Asramid Pristya, Terry Y. R. Imu lingkungan; Kesehatan masyarakat mangrove; rehabilitation; coastal Kesehatan Masyarakat mangrove; rehabilitasi; pesisir Retraction NotificationAfter going through a careful process of review and attention to the article that have been published in Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan, Volume 17 Issues 1 pp 1-18 in March 2020, the editor board decided to retract this article because of its violence to the Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan's ethical code.This article has been submitted at the same time in the Journal of Green Growth and Environmental Management. Before being published, we have made an effort to detect plagiarism using the turnitin application twice, on 30 November 2019 (23% of similarity) and 30 August 2019 (18% of similarity). On January 2, 2020, the corresponding author corrected and editted the article and the Editor published the article in the "Article in press" issue. Subsequently, the article was published in Volume 17 No. 1 of March 2020.We have corresponded with the authors and the authors declare their willingness to revoke their articles at Jurnal Green Growth dan Manajemen Lingkungan. As long as the article has not been revoked from the Jurnal Green Growth dan Manajemen Lingkungan, the document and its contents removed from the Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan.AbstractIn Southeast Sulawesi rehabilitation of mangrove areas that have been damaged but in reality not all mangrove rehabilitation activities were successful, this was allegedly caused by a mismatch in the type of mangrove and incompatibility of rehabilitation techniques used with environmental conditions or parameters of the local coastal environment. This study is aimed to analyze the condition of coastal environmental parameters in Bungkutoko island, district of Abeli in rehabilitation proposed of mangrove ecosystem and to find a proper rehabilitation strategy for it can be applied in that area. This study was carried on June to July 2009 in the coastal of Bungkutoko island, Abeli district, Kendari Town. Data in this study is analyzed as descriptively for giving common view of that area. The measurement results of several physical-chemical parameters on the coast of Bungkutoko island at stations I, II and III are suitable for mangrove ecosystem rehabilitation activities, which have a slope of the base: flat and sloping, particle size: small substrate, binding capacity of substrate particles: moderate to loose, confinement coastline: protected and semi protected and open, wave: relatively small, sea level deviation: moderate, tidal type: mixture tends to double daily, current speed: weak, sediment suspension: normal and salinity: 25-35 ppt. Also pay attention to the right planting time on the condition of mangrove tree is in having fruits and calm water condition of sea. And for planting technic is propaguls directly planted to the ground and using seeds on the polybags. Pemberitahuan RetraksiSetelah melalui proses review dan penilaian yang sangat hati-hati terhadap artikel yang telah dipublikasi pada Jurnal Presipitasi Volume 17 Issues 1 pp 1-18 pada bulan Maret 2020, kami memutuskan untuk menarik artikel ini karena ditemukannya artikel yang sama pada jurnal lainnya.Artikel ini telah disubmit secara bersamaan di Jurnal Green Growth dan Manajemen Lingkungan. Sebelum diterbitkan, kami telah melakukan upaya untuk mendeteksi plagiasi menggunakan aplikasi turnitin sebanyak 2 kali yaitu pada tanggal 30 November 2019 (similarity 23%) dan 30 Agustus 2019 (similarity 18%). Pada tanggal 2 Januari 2020, corresponding author melakukan perbaikan terhadap artikel dan Editor menerbitkan artikel tersebut di issue "Article in press." Selanjutnya, artikel diterbitkan di Volume 17 No 1 bulan Maret 2020.Kami telah melakukan korespondensi dengan penulis dan penulis menyatakan kesediaannya untuk mencabut artikelnya di Jurnal Green Growth dan Manajemen Lingkungan. Selama artikel tersebut belum dicabut dari Jurnal Green Growth dan Manajemen Lingkungan, dokumen dan isi dari artikel ini dihilangkan dari Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan.AbstrakDi Sulawesi Tenggara telah dilakukan rehabilitasi kawasan mangrove yang telah rusak namun kenyataannya tidak semua rehabilitasi mangrove berhasil dilakukan, hal ini diduga oleh ketidaksesuaian jenis mangrove dan teknik rehabilitasi yang digunakan dengan kondisi parameter lingkungan pesisir setempat. Penelitian ini bertujuan menganalisis kondisi parameter fisika-kimia perairan pantai Bungkutoko yang sesuai untuk rehabilitasi ekosistem mangrove dan menentukan strategi rehabilitasi yang tepat untuk diterapkan di perairan pantai Bungkutoko. Penelitian ini dilaksanakan dari bulan Juni-Juli 2009 bertempat di pesisir pulau Bungkutoko Kecamatan Abeli Kabupaten Kendari Sulawesi Tenggara. Data penelitian ini menggunakan analisis deskriptif. Hasil pengukuran beberapa parameter fisika-kimia di pesisir pulau Bungkutoko pada stasiun I, II dan III sesuai untuk dilakukan rehabilitasi ekosistem mangrove yaitu mempunyai kemiringan alas yang datar dan landai, ukuran partikel substrat kecil, daya ikat partikel substrat sedang sampai lepas, keterkungkungan garis pantai terlindung dan semi terlindung serta terbuka, gelombang relatif kecil, simpangan muka air laut sedang, pasang surut bertipe campuran condong harian ganda, kecepatan arus yaitu lemah, sedimen suspensi yang normal dan salinitas 25-35 ppt. Selain itu memperhatikan waktu penanaman yang tepat yaitu ketika musim berbuah mangrove dan musim teduh dan menggunakan teknik penanaman secara langsung menggunakan propagul dan penanaman menggunakan anakan (bibit dalam polybag). Universitas Diponegoro 2020-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24994 10.14710/presipitasi.v17i1.1-18 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 1-18 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 1-18 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24994/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/75563 2025-12-13T04:17:17Z presipitasi:RSA

Utilization of Pyrolysed Tyres Scrap as Heavy Metal Adsorbent Surya, Surya Trihadiningrum, Yulinah Nisaa, Ainul Firdatun Activated carbon; adsorption; pyrolisis; scrap tire; sulfuric acid Scrap tires continuously generated due to increasing motorized vehicle use. In Indonesia, tire waste generation reaches approximately 11 million tons annually. One processing method is pyrolysis, which converts tires into carbon, oil, and metals. However, the carbon, comprising 25–30% of tire conten, remains underutilized. This study aims to compare the performance of Tire-derived Activated Carbon (TAC) and Commercial Activated Carbon (CAC) in Pb(II) removal from wastewater. The carbon was activated using 98% H₂SO₄ (1:1 w/w) and heated in a fluidized bed reactor at 600, 650, and 700 °C for 1 hour. The optimal TAC was produced at 600 °C, with a specific surface area of 103.162 m²/g. FTIR analysis confirmed the presence of -OH, C=C, and C=O functional groups, and SEM revealed a porous structure. Adsorption tests at varying pH and initial Pb(II) concentrations showed optimum performance at pH 5 and 30 mg/L. The Langmuir model fitted the data well, indicating monolayer adsorption on a homogeneous surface. TAC achieved 96.32% removal efficiency in synthetis medium and a maximum adsorption capacity of 240.80 mg/g, significantly higher than CAC (62.68%, 151.366 mg/g). These results demonstrate the potential of TAC as an effective low-cost alternative adsorbent for heavy metal removal.  Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/75563 10.14710/presipitasi.v22i3.964-979 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 964-979 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 964-979 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/75563/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/47058 2023-01-04T02:30:50Z presipitasi:RSA

Rainwater Harvesting-Based Water Resources Conservation Kariyana, I Made Pamungkas, Tri Hayatining Weda Erlangga, Ida Bagus Teknik Lingkungan Rainwater harvesting; water needs; conservation Denpasar City has an index of population increase worth 2.07% every year. It is feared that this will become a new problem in terms of environmental sustainability, such as the overexploitation of groundwater to meet the community’s water needs. This study aims to support the sustainability of water resources by using Rainwater Harvesting (RWH) as a form of green building planning. The method used in this study is a quantitative descriptive method, which is an analysis method carried out to calculate and describe the scale of RWH in the focus of the system’s effectiveness with the study location in the campus environment of the Ngurah Rai University Denpasar. The results of the study stated that 11 roofs of capture buildings produced rainwater of 1,783,350 litres/year. Another analysis said that this RWH method could cover all water needs, especially water used for flushing toilets. It is stated that the total water deficit of -703,734 litres/year can be subsidized from the entire remaining rainwater harvesting water of 879,624 litres/year. In addition, rainwater harvesting also plays a role as a form of effort to maintain the conservation of water resources and the application of green buildings that are energy efficient and environmentally friendly. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47058 10.14710/presipitasi.v19i3.532-541 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 532-541 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 532-541 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47058/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11012 2016-05-05T01:28:38Z presipitasi:RVA

ANALISA PENGARUH PERBEDAAN FUNGSI TATA GUNA LAHAN TERHADAP BEBAN CEMARAN BOD SUNGAI (STUDI KASUS: SUNGAI SERAYU - JAWA TENGAH) Priyambada, Ika Bagus Oktiawan, wiharyanto Suprapto, Ratih Puspa Endah Environmental Engineering Concentration of BOD, land used, Serayu River . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11012 10.14710/presipitasi.v5i2.55-62 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 55-62 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 55-62 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11012/8696

oai:ojs.ejournal.undip.ac.id:article/62323 2025-05-18T20:37:10Z presipitasi:RCS

Assessing the Environmental and Health Impacts of Thermal Waste and Landfill-Based Waste Management Aji, Angga Dheta Shirajjudin Suhardono, Sapta Suryawan, I Wayan Koko Prayogo, Wisnu Denpasar City; impact scenario; LCA; thermal; waste to energy According to Presidential Regulation No. 35 of 2018, which focuses on accelerating the development of waste-to-energy projects, Denpasar City in Bali has been identified as one of the key Indonesian cities for implementing these projects. The daily waste generation in Denpasar City is estimated at 750 tons. The city's sanitation strategy outlines that 20% of this waste will be reduced at its source, while the remaining 80% is managed at the final treatment site. This study employs the Life Cycle Analysis (LCA) approach to evaluate the environmental impacts of traditional landfilling and various thermal waste treatment methods. The findings reveal that gasification (Scenario 2) has the lowest Global Warming Potential (GWP), with 779,759 kg CO2 equivalent emitted, indicating its superiority in reducing greenhouse gases. In contrast, landfilling (Scenario 1) is the least favorable, with a GWP of 2,885,770 kg CO2 equivalent and a significant cancer risk due to hexavalent chromium emissions estimated at 1,634,050 kg equivalent. These results underscore the health and environmental hazards of landfilling. Further, the study delves into each treatment scenario's impact on acidification, eutrophication, global warming potential, and photochemical oxidation. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62323 10.14710/presipitasi.v21i2.570-585 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 570-585 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 570-585 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62323/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/35020 2022-02-16T03:29:41Z presipitasi:RSA

GWP, AP, and EP Contribution on Potential Improving Scenarios of Domestic SWM in Padang City: A Review Wulandari, Suci Raharjo, Slamet Teknik Lingkungan Impact contribution, contribution analysis, solid waste management, LCIA The increase in solid waste generation is incompatible with solid waste management (SWM). Padang city have a small processing percentage of 5% through composting and recyling. Improper and nonoptimal SWM lead to many obstacles including climate change, water and soil contamination, to creatures life disturbance. By conducting Impact Assessment and Contribution Analysis, this study examines the most impact contributor of unit processes in four scenarios of domestic solid waste management in Padang City. Scenario 0 presents the existing condition; scenarios 1, 2, and 3 present the improvement of Scenario 0 in recycling percentage rate and technology implementation in a row by composting, incineration, and anaerobic digestion. CML2001, impact assessment method by Center of Environmental Sciences of Leiden University, is used to assess the environmental impact of Global Warming Potential (GWP), Acidification Potential (AP), and Eutrophication Potential (EP). This study found that the significant impact for the four scenarios is GWP by the contribution percentage over 72%. While EP is the second place in the contribution range of 1.70% to 5.46%, and followed by AP under 0.91%. Scenario 1 is the best scenario due to the small contribution of impact compared to other scernarios, and potentially to be applied by modification in increase of composting percentage and additional recovery gas in landfill.  Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/35020 10.14710/presipitasi.v18i1.108-115 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 108-115 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 108-115 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/35020/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/78405 2026-05-17T16:54:53Z presipitasi:RSA

PM2.5 Temporal Pattern in Jambi City: Meteorological Drivers and Air Mass Trajectory Analysis Fajar, Benedy Damris, Muhammad Wiharja, Kemas Rahmat Saleh Mutmainnah, Elma Mohamad, Noorlin Handika, Rizki Andre ilmu Lingkungan Forest Fires, Meteorological Factors, PM2.5, Temporal Pattern. Air pollution, particularly particles with diameter of less or equal than 2.5 micrometers (PM2.5), has become important global health and environmental problem. Jambi City in Sumatra is highly susceptible to this issue, both locally and particularly influenced by forest fires. As early studies were conducted over a short period, this study examined the meteorological factors that influenced PM2.5 levels and estimated the pollutant transport pathways over two years in the post-COVID-19 period (2023-2024). The methods employed were time-series analysis, scatter-plot evaluation, multiple linear regression analysis, and backward trajectory modeling using HYSPLIT. The results show that the average PM2.5 concentration in 2023 (30.53 µg/m³) was higher than in 2024 (25.36 µg/m³), with night-time levels generally exceeding day-time levels. 3.69% of the days exceeded Indonesia’s daily air quality standard, while 90.83% surpassed the stricter WHO guideline. Meteorological factors explained only 23–38% of PM2.5, with temperature positively correlated, wind speed showing mixed effects, and humidity and rainfall negatively correlated.. The major PM₂.₅ sources influenced by the southeast–South Sumatra, particularly South Sumatra, highlighting the strong stimulus of transboundary emissions alongside local sources. In the future, studies focusing on chemistry-based source apportionment are needed to accurately separate each contributing source. Universitas Diponegoro 2026-05-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78405 10.14710/presipitasi.v0i0.%p Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Article in Press 2026 (For Upcoming Issue) Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Article in Press 2026 (For Upcoming Issue) 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78405/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/78405/22130 Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4805 2013-05-14T23:21:12Z presipitasi:RVA

KETAHANAN GELAS-LIMBAH AKTIVITAS TINGGI HASIL VITRIFIKASI MENGGUNAKAN BOTTOM ASH SEBAGAI GLASSFRITS Budiarti, Ratna Purwanto, Purwanto Martono, Herlan Environmental Engineering; Environment vitrification, chemical durability, mechanical durability, bottom ash Vitrification is considered  as the most appropriate technology for HLW treatment.  However, it has constraints, those are processability, economic, and durability. The purposes of  this study are to examine the composition of materials using bottom ash  as an alternative glassfrits for vitrification, to assess waste glass durability of selected glassfrits and analyze the economic advantage of bottom ash utilization as glassfrits. This research was conducted with simulated High Level Waste. Glass–waste was melted at its melting point. Glasses  used in the study were borosilicate glass, bottom ash glass, and bottom ash glass added  B2O3.  Parameters  used  for  selected  glassfrits  are  melting  temperature,  leaching  ratecompressive strength and cost analysis. Selected glassfrits was analyzed using XRD and performed tests to determine the effect of pH on leaching rate. The results indicated that the addition of B2O3 in glass bottom ash reduced the melting temperature. This glass has a density of 2.78 g/cm3 , leaching rate of 6.99 x 10-7. Utilization of  bottom ash as a glassfrits can save 75, 34% of cost. The results of XRD analysis explained that the devitrification formed  a crystalline of Ca-Fe-Al-S-Si-O, Fe+2Fe2 O4+3, Ca-Mg-Fe-Ti-AlSiO. the influence of pH on the leaching rate showed that the highest leaching rate was at acidic condition Keywords: vitrification, chemical durability, mechanical durability, bottom ash Universitas Diponegoro 2012-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4805 10.14710/presipitasi.v9i1.20-30 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 1 (2012): Vol 9, No 1 (2012); 20-30 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 9, No 1 (2012): Vol 9, No 1 (2012); 20-30 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4805/4355

oai:ojs.ejournal.undip.ac.id:article/51162 2023-04-08T21:36:46Z presipitasi:RSA

Optimizing Utilization of Hazardous Waste and Biomass as Solid Fuel for Co-Firing Ahmad Fauzy, Fandy Hartati, Etih Marganingrum, Dyah Biomass; bottom ash; briquettes; fly ash; sludge Continuously high use of fossil fuels may lead scarcity of these energy sources in the future. Therefore, it is necessary to develop renewable energy to ensure its availability. One of the efforts in the development of renewable energy and the aims of this study is to examine the utilization Fly Ash (FA), Bottom Ash (BA) combined biomass sludge of Wastewater Treatment Plant (WWTP) and municipal solid waste) materials as an alternative energy source (briquette raw materials) for co-firing in textile industry boilers. Briquettes were made with a composition of 60% FABA and 40% biomass which were then varied in composition. The parameters measured were proximate, calorific value, and shatter index. The feasibility test of briquettes was carried out using a Tanner diagram, where all briquettes made can be burned as fuel. Optimum briquettes quality was measured based on the criteria according to the Minister of Environment and Forestry Regulation No. 06/2021. The results showed that the composition of three briquettes that had optimum quality and met the criteria were briquettes with composition 10%FA:50%BA:40%Biomass (variation of WWTP sludge and biomass) with a calorific value and sulfur content of 3,578 Kcal/kg   and 0,70%; 3,890 Kcal/kg and 0,82%; and 3,864 Kcal/kg and 0,96%. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51162 10.14710/presipitasi.v20i1.165-174 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 165-174 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 165-174 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51162/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/14829 2020-04-17T11:34:32Z presipitasi:RSA

Cryptosporidium sebagai Indikator Biologi dan Indeks Nsf-Wqi untuk Mengevaluasi Kualitas Air (Studi Kasus: Hulu Sungai Citarum, Kabupaten Bandung) Nufutomo, Tastaptyani Kurnia Muntalif, Barti Setiani Teknik Lingkungan; Lingkungan;Mikrobiologi Lingkungan Environmental Engineering; Environment; Environment Microbiology Kualitas air yang menurun di Hulu Sungai Citarum dapat disebabkan oleh banyak faktor. Faktor-faktor tersebut dapat diketahui dari parameter fisika, kimia dan biologi. Parameter biologi yang digunakan untuk mengevaluasi kualitas air adalah  mikroorganisme patogen yang menimbulkan penyakit di sistem pencernaan seperti diare akut, yaitu Coliform dan Cryptosporidium. Tujuan penelitian ini adalah untuk mengetahui status kualitas air di Hulu Sungai Citarum dengan indeks kualitas air NSF-WQI, mengetahui hubungan dan pengaruh parameter fisik dan kimia air terhadap parameter biologi, menentukan faktor utama dari parameter air yang paling berpengaruh dan mengetahui hubungan serta pengaruh faktor utama tersebut terhadap Cryptosporidium. Metode yang digunakan adalah  mengambil sampel di tiap stasiun dengan composite, mengidentifikasi dan analisis Coliform dengan MPN dan identifikasi Crytosporidium dengan Ziehl Neelsen staining, kemudian menganalisis parameter kimia dan fisika dengan indeks NSF-WQI, lalu data tersebut diolah menggunakan metode statistik PCA. Hasil pengukuran kualitas air berdasarkan NSF-WQI adalah kualitas air di Hulu Sungai Citarum termasuk kategori buruk dan medium. Keberadaan Cryptosporidium di Hulu Sungai Citarum disebabkan oleh 2 (dua) faktor utama, yaitu faktor pertama terdiri dari DO, turbiditas, NO2, NH4 dan total Colifom, sedangkan faktor kedua terdiri dari TSS, COD dan PO4. Kedua faktor tersebut tidak signifikan dengan keberadaan Cryptosporidium di Hulu Sungai Citarum. Kata kunci: Cryptosporidium, Hulu Sungai Citarum, Indeks NSF-WQI, Kualitas Air Universitas Diponegoro 2017-11-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14829 10.14710/presipitasi.v14i2.45-53 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 45-53 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 45-53 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14829/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/14829/1647 Copyright (c) 2017 Jurnal  Presipitasi  :  Media  Komunikasi  dan  Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/63791 2025-05-18T20:39:07Z presipitasi:RCS

Unveiling the Dynamic Between Land Conversion and Food Security of Farmers Households in Bakalan Village, Pasuruan Regency Novianty, Puput Cindy Soemarno, Soemarno Efani, Anthon Bushron, Raushanfikr Farmers; food security; land conversion; system dynamic System Dynamics serves as an approach to unravel behavioral patterns by exploring fundamental structures. In this study, the dynamic system was crafted using STELLA software. The research methodology involved conducting primary surveys with both farmers and conversion farmers' households to gather essential data on their perspectives, practices, and circumstances related to land conversion and food security. Through this data, the System Dynamic model was constructed to depict the interplay among key variables impacting food security, specifically focusing on Food Availability, Affordability, and Needs. The analysis revealed that the Food Affordability indicator consistently played a pivotal role in shaping these trends over the analyzed years. However, a significant discrepancy in food security levels emerged between farming and non-farming households. This divergence primarily stemmed from income inequalities within the agricultural sector, affecting the purchasing power for essential foods like rice across the village. Additionally, a concerning trend of diminishing agricultural land and a subsequent decline in food availability was observed. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63791 10.14710/presipitasi.v21i3.907-916 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 907-916 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 907-916 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63791/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39574 2022-02-19T00:21:43Z presipitasi:RSA

Treatment of Domestic Wastewater with Combination of Phytoremediation and Filtration Using Activated Carbon of Tea Dregs Nurhidayanti, Nisa Ardiatma, Dodit Tasdik, Jamaludin Teknik Lingkungan; ; Rekayasa Ilmu Lingkungan tea dregs, phytoremediation, activated carbon, greywater One source of water pollution comes from domestic wastewater as a result of daily human activities. As one of the work units in the field of education, the university also produces domestic liquid waste that needs to be processed so as not to pollute the environment. The use of the phytoremediation method with water jasmine and water hyacinth combined with the use of tea dregss as an activated carbon filter is one method that can be used to treat domestic greywater wastewater. The purpose of this study was to determine the efficiency of reducing levels of COD, BOD, TSS, NH3, and turbidity in domestic greywater waste at Pelita Bangsa University by phytoremediation methods using water jasmine plants and water hyacinth plants with a combination of filters from tea dregss. The research procedure starts by making activated carbon from tea dregss, characterizing activated carbon with SEM, sampling greywater wastewater, characterizing wastewater test, plant acclimatization, range-finding test, phytoreactor test with activated carbon filter, and data analysis. The phytoremediation method with a combination of filtration using tea dregss activated carbon produces an efficiency of 99.61% COD reduction, 100% BOD, 98.68% TSS, 100% ammonia, and 97.50% turbidity. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39574 10.14710/presipitasi.v18i3.386-399 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 386-399 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 386-399 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39574/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10940 2016-05-03T19:56:57Z presipitasi:RVA

ANALISIS EFISIENSI TEORETIS KONDISI FABRIC FILTER DI UNIT COAL MILL PADA PT SG DI TUBAN JAWA TIMUR Huboyo, Haryono Setiyo Environmental Engineering Cement Industrial activities produces various pollutants mainly dust pollutant and gases pollutants. These pollutants come up from material handling, production process (treatment, combustion and finish mill) and packing proces Cement  Industrial  activities  produces  various  pollutants  mainly  dust  pollutant  and  gases pollutants. These  pollutants  come  up  from  material  handling,  production  process  (treatment, combustion  and finish  mill)  and  packing  process.  PT  SG  has  done  any  steps  to  controll  its pollutant  i.e  ambient and  emission  pollutant  measurements  and  conducting  abatement.  Bag filters in coal mill unit shows an excellent performance since its real dust output concentration only 22.9 and 13.4 mg/m3 far below emission standard 80 mg/m3. Theoretical efficiency of this device  was  assessed  using  design  criteria, limited  assumption  and  secondary  relevant literature.  Based  on  secondary  data  the  efficiency  was 99.9%  (higher  than  EPA  standard 99.5%). Its values are somewhat different using real output concentration showing 99.29% and 99.58%.  These  differences  were  subjected  to  limited  design specification  data  and  fluid properties exist. Universitas Diponegoro 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10940 10.14710/presipitasi.v2i1.15-18 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 15-18 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 15-18 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10940/8631

oai:ojs.ejournal.undip.ac.id:article/54968 2024-06-14T22:00:52Z presipitasi:RCS

Study of The Feasibility of Minimarkets in Pontianak Cities Based on the Microbiological Quality of Air In Relation to the Physical Condition of the Room Rahminda, Siti Almira Jumiati, Jumiati Sulastri, Aini Teknik Lingkungan Air quality; airbone bacterial; minimarkets; physical condition Indoor air quality affects human health and productivity. The presence of microorganisms in indoor air is influenced by physical parameters of the space, activities within the space, building factors, ventilation systems, and human maintenance and care. This study aims to assess air quality and analyze the difference in the number of bacteria between minimarkets and the relationship test with their influencing factors. The study used a cross sectional method with 4 minimarket samples, 2 AC and 2 non-AC. Airborne bacterial colony counts were measured using a passive method with blood agar media, a contact time of 15 minutes, and 3 days of repetition. The average value of airborne bacterial colony counts in non-air-conditioned minimarkets (294.3 CFU/) was lower than in air-conditioned minimarkets (531.8 CFU/). The Rank Spearman correlation test results indicated that there was no significant relationship between airborne bacterial colony counts and temperature (p=0.498), humidity (p=0.089), light intensity (p=0.948), and visitor count (p=0.481). All studied minimarkets met the microbiological air quality, population density, and air circulation standards, but not all met the standards for room temperature, humidity, and light intensity based on the quality standards of the Indonesian Ministry of Health Number 1405/MENKES/SK/XI/2002. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54968 10.14710/presipitasi.v20i3.572-580 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 572-580 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 572-580 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/54968/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/24779 2020-04-17T11:39:10Z presipitasi:RSA

Desulfurisasi Batubara Menggunakan Larutan Ekstrak Belimbing Wuluh (Everrhoa Bilimbi L) Amin, Muhammad Birawidha, David Candra Isnugroho, Kusno Hendronursito, Yusuf Muttaqqi, Muhammad Al Prilitasari, Nurbaiti Marsas Pengolahan Mineral Dan Material; Teknik Lingkungan coal, desulfurization, wuluhstarfruit, leaching agent, fixed carbon Desulphurization process can improve the quality of coal and reduce the environmental pollution. In this study, the method used for desulphurization process was a leaching method using wuluh starfruit extract as a leaching agent. Starfruit extract obtained by grinded, filtered and extracted the starfruit solution. Coal was crushed by using a grinding ball mill, sifted to obtain samples of 80 mesh, 120 mesh, and 150 mesh. Coal was added with starfruit extract, heated on a hotplate stirrer at a temperature of 110oC, 300 rpm of stirring speed and 3, 4 , 5 hours of leaching time. Leachate solution were analyzed using XRF test. The results of the study showed that 80, 120 and 150 mesh could produce 1.777%, 1.556% and 1.053% of sulfur, respectively. Maximum decrease of sulfur occurred in 150 mesh with 5 hours of leaching time which could reach 0.261% of concentration. Ash content also could decreased from 11.43% to 6.18% and fixed carbon content from 42.15% rose to 51.33%. The desulphurization process using starfruit extract was influenced by the grain size of the coal and the contact time of leaching. The finer the grain size of the coal and the longer the leach contact time, the smaller the sulfur content obtained in the coal after the desulfurization process was carried out Universitas Diponegoro BPTM (Balai Penelitian Teknologi Mineral-LIPI) 2019-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24779 10.14710/presipitasi.v16i2.44-52 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 44-52 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 44-52 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24779/pdf_1 Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/69120 2025-12-04T00:06:42Z presipitasi:RSA

Effect of Non-Thermal Plasma on Biochar Properties from Sugarcane Bagasse and Banana Peel Dermawan, Denny Satriavi, Aulia Diva Nurhidayati, Dyah Isna Mujiyanti, Dwi Rasy Novitrie, Nora Amelia Mayangsari, Novi Eka Setiawan, Adhi Teknik Lingkungan Biochar; non-thermal plasma; sugarcane bagasse; banana peel; surface area; crystallinity; functional groups Biochar produced from agricultural waste, such as sugarcane bagasse and banana peel, has gained significant attention owing to its potential environmental and industrial applications. This study aimed to enhance the physicochemical properties of biochar derived from these wastes using nonthermal plasma treatment. Biochar was produced via pyrolysis combined with non-thermal plasma treatment and then characterized to identify the differences. Characterization was performed using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and–Brunauer–Emmett Teller (Brunauer-Emmett-Teller) surface area analysis to evaluate changes in crystallinity, morphology, functional groups, and surface area. Nonthermal plasma treatment significantly altered the surface morphology of biochar, increasing its porosity and surface area. The BET surface area of sugarcane bagasse waste was 0.061 m²/g, which expanded to 87.50 m²/g after changing to biochar, whereas banana peel waste had a BET surface area of 0.007 m²/g, which increased to 427.2 m²/g after changed to biochar. The pyrolysis process on both biochars also reduced OH (hydroxyl) transmittance, as evidenced by FTIR analysis, which indicated water evaporation. Non-thermal plasma treatment substantially improved the physical and chemical properties of biochar compared to untreated biomass. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69120 10.14710/presipitasi.v22i2.349-359 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 349-359 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 349-359 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69120/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/45726 2022-12-14T20:16:03Z presipitasi:RVA

Organic Wood Dust Exposure as a Risk Factor for Lung Function Disorders in Workers : Systematic Review Berlian, Alifia Intan Setiani, Onny Sulistiyani, Sulistiyani ilmu lingkungan Wood Dust; risk factors; Lung Function Disorders Wood dust is wood particles that result from wood processing and handling. The level of fine dust in the work environment can expose to workers breathing and cause lung function disorders. Obstructive lung function disorders, namely blockages that make it difficult for air to escape from the lungs, resulting in a decrease in airflow velocity. The purpose of this systematic review was to determine wood dust exposure and risk factors for impaired lung function for workers. Article searches carried out through the Portal Garuda Indonesia, PubMed, Scopus, ProQuest, and Google Scholar. There are 9 articles reviewed. Exposure to wood dust was assessed as a significant risk factor for impaired lung function in workers as seen from the statistical analysis results in each study showing that the p-value < 0.05. The risk factors that were stated to have a significant relationship were the concentration of wood dust, gender, work location, use of personal protective equipment (mask), length of work, and smoking habits. Exposure to wood dust increases the risk of impaired lung function in workers, with dust levels ranging from 1.15 mg/m3– 24 mg/m3. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45726 10.14710/presipitasi.v19i1.168-178 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 168-178 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 168-178 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45726/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11019 2016-05-05T04:32:12Z presipitasi:RVA

DESAIN SISTEM PENYALURAN DAN PENGOLAHAN AIR LIMBAH DOMESTIK DENGAN KOMBINASI TEKNOLOGI UP FLOW ANAEROBIC SLUDGE BLANKET DAN DOWN FLOW HANGING SPONGE PERUM PERUMNAS BOGOR UTARA KOTA BOGOR Nasrullah, Nasrullah Environmental Engineering waste water domestic, small bore sewer system, Up Flow Anaerobic Sludge Blanket, Down Flow Hanging Sponge . Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11019 10.14710/presipitasi.v4i1.43-47 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 43-47 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 43-47 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11019/8703

oai:ojs.ejournal.undip.ac.id:article/56747 2025-05-18T20:36:13Z presipitasi:RSA

Zeolites Effects in Physical Characteristics of Low-Density Polyethylene (LDPE) and Polypropylene (PP) Pyrolysis into Liquid Fuel Mayora, Elsa Meilia Arifin, Arifin Nugraheni, Putranty Widha Teknik Lingkungan Low density polyethylene; plastic; pyrolysis; polypropylene The decline in the quality of waste management has generally started to occur since the prolonged economic crisis in Indonesia. Plastic waste includes inorganic waste, which is currently widely used by industry and households. Therefore, it is necessary to have an alternative recycling process, like converting plastic waste into liquid fuel. The research objective is to utilize LDPE plastic waste (Low-Density Polyethylene) and PP (Polypropylene)in liquid fuelutilizing pyrolysisto determine the effect of using a zeolite catalyst by comparing the results of the pyrolysis process. The investigation took place at the Wonosari landfill in Singkawang, where parameters such as density, viscosity, and color were examined. The pyrolysis results underwent consistency testing through the Mann-Whitney test. According to the study findings, the average physical parameter values for viscosity and density of LDPE pyrolysis liquid fuel were 0.302 cP, LDPE+catalyst was 0.114 cP, with densities of 767 kg/m3 and 737 kg/m3. For PP, the average viscosity was 2.812 cP, and PP+catalyst was 0.248 cP, with densities of 774 kg/m3 and 735 kg/m3. Samples of PP and LDPE with catalysts exhibited lower density values compared to those without catalysts. Universitas Diponegoro 2024-03-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56747 10.14710/presipitasi.v21i1.90-102 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 90-102 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 90-102 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56747/xml Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/73438 2025-12-13T04:17:17Z presipitasi:RVA

Sustainable Valorization of Used Biochar for Hexavalent Chromium Removal from Wastewater and Soil Fertility Enhancement Anwar, Dedy Neliyati, Neliyati Gusniwati, Gusniwati Jasminarni, Jasminarni Rohman, Arif Syarifuddin, Hutwan Nainggolan, Ellyas Alga Wibowo, Yudha Gusti Teknik Kimia; Teknik Rekayasa Kimia; Teknik Bioproses; Teknologi Rekayasa Bersih Environmental remediation; regeneration materials; toxic metals; utilization of waste materials; wastewater treatment Environmental pollution from wastewater and soil contamination remains a critical global concern, with current treatment methods often facing limitations in scalability, cost, or environmental safety. Biochar, a carbon-rich material derived from biomass pyrolysis, has emerged as a sustainable adsorbent for heavy metals and organic pollutants. While its use in environmental remediation is well-established, the fate and reuse of spent biochar have received limited attention. This comprehensive review explores the untapped potential of used biochar, particularly for the removal of hexavalent chromium (Cr(VI)) from wastewater and its role in enhancing soil fertility. We critically analyze current practices, mechanisms of Cr(VI) removal using spent biochar, regeneration techniques, and field applications, while highlighting circular economy frameworks that promote resource efficiency. The study integrates empirical evidence from recent case studies and offers policy recommendations to support large-scale implementation. This work is the first to provide an integrative review of the reuse of spent biochar with a dual focus on wastewater treatment and soil enhancement, underpinned by a circular economy perspective. It addresses critical research gaps by evaluating regeneration techniques, post-use functionality, and practical field applications, thereby positioning spent biochar as a viable, low-cost, and eco-friendly alternative in environmental management systems. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/73438 10.14710/presipitasi.v22i3.723-750 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 723-750 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 723-750 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/73438/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/47016 2023-03-29T21:11:54Z presipitasi:RCS

Pollution Index Analysis and Water Pollution Control Strategy in Berenyok River, Tanjung Karang, Mataram City Ramdlan, M Said Azmiyati, Uzlifatul Teknik Lingkungan Water quality; pollution index; control strategies; berenyok river Berenyok river is one of the water sources in Tanjung Karang, Mataram city, categorised as Class 2 for its designation. Thus, preserving the quality of water in the Berenyok river is crucial. This study aims to determine the water quality, calculate the Pollution Index (PI), and set control strategies for the Berenyok river. The study uses quantitative methods such as laboratory analysis for the water quality and PI calculation using a formula based on the Decree of the Minister of Environment No.115/2003 on determining water quality status. Meanwhile, the Strengths, Weakness, Opportunities, and Threats (SWOT) analysis generates recommendations for water pollution control strategies. The sampling locations are located in two sampling points (upstream and downstream of the Berenyok river) during bright daylight and the river's normal flow. Based on analysis results, the Berenyok river is defined as lightly polluted as the concentrations of several chemical parameters exceed the maximum limit, such as BOD, and PO3-P. It is also verified by high concentration of total coliform, namely 540,000 MPN/100mL (upstream) and 1,600,000 MPN/100mL (downstream). Thus, recommendations for water pollution control strategies are substantial for the Berenyok river. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47016 10.14710/presipitasi.v19i2.408-416 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 408-416 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 408-416 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47016/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/47016/10950 https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/47016/11182 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11003 2016-05-04T22:40:38Z presipitasi:RVA

DAMPAK PENURUNAN TANAH DAN KENAIKAN MUKA LAUT TERHADAP LUASAN GENANGAN ROB DI SEMARANG Kahar, Sutomo Purwanto, Purwanto Hidajat, Wahyu Krisna Environmental Engineering penurunan tanah, prilaku kenaikan muka laut, genangan rob dan model permukaan dijital. Kota  Semarang sebagai  salah satu kota besar di Indonesia ,memiliki panjang  garis pantai ± 21 km dan secara topografi terbagi menjadi dua wilayah yaitu Semarang bagian atas dan Semarang bagian bawah. Semarang bagian bawah lapisan tanahnya didominasi oleh lapisan tanah Aluvial yang lunak sehingga  terus mengalami  pemampatan.  Kondisi  tersebut  mengakibatkan  kota  Semarang  bagian bawah  berpeluang besar  mengalami  dampak  lingkungan  disebabkan  penurunan  tanah,  salah  satu dampaknya adalah banjir pasang laut atau rob. Rob merupakan fenomena yang menarik yaitu banjir terjadi  tanpa  adanya hujan.  Berdasarkan  kenyataan  tersebut  perlu  dilakukan  penelitian  mengenai penurunan  tanah  dan prediksi  penurunan  tanah  di  Semarang  bagian  bawah.  Penelitian  ini menggunakan data pengukuran titik-titik tinggi tanah kota semarang dari tahun 2000 sampai dengan tahun 2010 . Berdasarkan serial data tinggi berbasis Digital Elevasi Model (DEM)/model permukaan dijital dan perilaku muka laut,  kemudian dianalisis menjadi model matematis berupa peta digital yang akan  digunakan  sebagai  dasar    untuk prediksi  genangan  rob  yang    setiap  saat  terjadi  sepanjang tahun.  Hasil  akhir  penelitian  ini  berupa Peta  Digital  tahun  2010  dan  Peta  prediksi  penyebaran  rob yang  merupakan  hasil overlay/pertampalan  analisis  prilaku  penurunan  tanah  dan  analisis  perilaku muka laut  di Kota Semarang bagian bawah. Universitas Diponegoro 2010-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11003 10.14710/presipitasi.v7i2.83-91 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 2 (2010): Vol 7, No 2 (2010); 83-91 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 2 (2010): Vol 7, No 2 (2010); 83-91 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11003/8687

oai:ojs.ejournal.undip.ac.id:article/61963 2025-05-18T20:37:10Z presipitasi:RCS

The Relationship of Surface Ozone Pollution with Meteorological Conditions in Determining Episode Periods Ramadhan, Taufik Rizki Permadi, Didin Agustian Ozone; episode; meteorological factors; airnow; power nasa Jakarta, the capital city of Indonesia, is located in a tropical region with abundant sunlight and high temperatures year-round. Ozone and particulate matter (PM) are critical parameters causing unhealthy air pollution. Meteorological data were obtained from the NASA Power website. This study aims to explore the relationship between ozone formation and meteorological factors in Jakarta. Ozone air quality data were measured using the Backman model 950A ozone Analyzer, which detects concentrations as low as 0.05 ppm, with measurements taken every 40 seconds. From January to October 2023, ozone concentrations increased during the dry months of May to October, with the highest hourly value recorded at 263 μg/m³. During this period, average temperatures ranged from 27-29°C, rainfall was 0.3-5.6 mm, wind speeds were 3.14-4.64 m/s, wind direction was 92-171 degrees, and air humidity was 74-82%. Significant episodes were identified on (i) May 5-9, (ii) July 12-15, (iii) September 6-7, (iv) September 13-14, (v) September 21-22, and (vi) October 29-30, 2023. Daily, monthly, and seasonal ozone variations aligned with meteorological conditions, showing higher concentrations during the dry months. Further studies, including photochemical modeling, are required to identify dominant factors causing high ozone concentrations during these episodes. Understanding NOx or VOC emission sensitivities is crucial for effective ozone abatement strategies in Jakarta.  Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61963 10.14710/presipitasi.v21i2.469-479 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 469-479 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 469-479 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/61963/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/36002 2022-02-16T03:29:41Z presipitasi:RSA

Synthesis of Silver Nanoparticles with Reductant of Java Long Pepper Leaf Extract (Piper Retrofractum Vahl) and Its Application as a Mercury Detector Serunting, Muhamad Allan Santoso, Prio Sari, Indah Puspita Widodo, Riyanto Kimia; kimia analitik; kimia lingkungan silver nanoparticles, green synthesis, mercury detection The synthesis of silver nanoparticles using the green chemistry concept utilizing Java long pepper leaf extract as a reducing agent has been successful. Silver nanoparticles were synthesized under optimum 1 mM silver nitrate concentration, 250 μL Java long pepper leaf extract, and 30 minutes under sunlight radiation. The silver nanoparticles formed can be confirmed by the change in the color of the solution from colorless to brownish red, indicating a reduction of Ag+ to Ag0. The Uv-vis spectrum showed a peak Surface Plasmon Resonance (SPR) at 441 nm. The FTIR spectrum showed that functional groups' vibrations in the Java Chili Leaf extract confirm that the phenol, alkaloid, and flavonoid compounds present in the extract act as reducing agents. TEM images show spherical silver nanoparticles with an average diameter of 17.65 nm. The potential of silver nanoparticles to detect Hg (II) metal is evidenced by a decrease in the color intensity of the silver nanoparticle solution along with the increasing concentration of Hg (II), which reacts back-oxidizing Ag0 to Ag+. The value of the correlation coefficient of the linear equation is 0.9807. Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36002 10.14710/vol%viss%ipp63-72 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 99-107 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 99-107 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36002/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/79416 2026-04-21T07:44:25Z presipitasi:RSA

Effectiveness and Spatial Distribution of Wastewater Land Application Technical Approval in East Java Hakasmanti, Erika Semedi, Bambang Hardjoko, Arief Tri Koentjoro, Maharani Pertiwi Supriyadi, Supriyadi Environmental Science; Environmental Sustainability; Environment Policy, Spatial Analysis East Java; Effectiveness; Irrigation; Spatial Analysis; Technical Approval; Wastewater The management of industrial wastewater presents a considerable challenge to governments globally, mainly because of the difficulties faced in ensuring that regulatory frameworks are properly instituted. This study evaluated the success of the technical approval for using wastewater" regulatory framework and its geographic spread across East Java. This was evaluated using data from 35 business participants from 16 different districts/cities via a combination of quantitative (survey) and qualitative (spatial analysis) methods. The overall effectiveness of the regulatory framework was rated high (84.69%), with the dimension "Regulatory Appropriateness" rated the highest (85.57%), while the dimension "Environmental Appropriateness" ranked the lowest (84.14%). From the geographic analysis, it was evident that cities and industrial centers dominated the level of support, with many non-industrial areas displaying very little engagement. Collectively, these results demonstrate the need for policies to be designed with a geographic perspective and for sufficient institutional support to be targeted towards non-urban areas. This will allow stakeholders to provide the required technical support, increase the utilization of technology to enhance service delivery, and engage the local workforce to the greatest degree possible to enable sustainable and equitable environmental governance. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79416 10.14710/presipitasi.v23i1.158-174 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 158-174 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 158-174 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79416/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/79416/23361 Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/2834 2016-05-21T14:19:41Z presipitasi:RVA

KOMBINASI FEEDING BIOSTARTER DAN AIR DALAM ANAEROBIK DIGESTER Budihardjo, Mochamad Arief Environmental Engineering; Environment organic waste, biogas and methane gas, anaerobic digester, bio-starte The research was conducted to investigate how much biostarter and water adding influence to biogas which is produced from organic waste degradation process of market and restaurant organic waste by anaerobic process. In this research, biostarter acts as catalyst to quicken organic waste degradation process while water addition function as moisturizer substrates factor in digester. Contribution of biostarter and water combination addition, be able to yield a lot of biogas which contains methane gas is significant. Research was set as laboratory scale experiment using batch system with fifth variations of treatment observed. The variations aim to determine a most effective variation which has capabilities to yield a lot of volume biogas, methane gas and the high efficiency of quality slurry reduction on a brief HRT (Hydraulic Retention Time). The result of the  research indicates that methane gas percentage in biogas at every variant range from 21.89 - 30.78 %, acid substrate level 5.47 - 7.41, which still at a preferable range for bacteria to live and efficiency of slurry quality reduction at every variant especially at its organic content range from 15.29 - 93.92 % Universitas Diponegoro 2009-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/2834 10.9767/bcrec.%v.%i.2834.143-147 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 2 (2009): Vol 6, No 2 (2009); 27-34 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 2 (2009): Vol 6, No 2 (2009); 27-34 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/2834/2519

oai:ojs.ejournal.undip.ac.id:article/49034 2023-04-08T21:36:46Z presipitasi:RCS

Analysis of Lake Water Quality in Cimahi City, West Java Province Wardhani, Eka Fitriani, Nurul Aulia Vania Gary Apsari, Virgy Kamilah Kusnadi, Faza Insyirah Rachmanita, Fitra Teknik Lingkungan; ilmu Lingkungan; Rekayasa Ilmu Lingkungan; Teknik Penyehatan Cimahi city; lake; water quality; raw water; pollutant index Cimahi City is experiencing raw water insecurity. This requires the local government to look for new water sources, such as rehabilitating the condition of existing lakes in their area so that they function again as raw water lake. This study aims to analyze water quality and parameters that exceed quality standards and to calculate the status of lake water quality. The data will be the basis for preparing priority recommendations for lake management. The calculation of this method uses the Pollution Index (PI) method. The lakes studied were lakes located at the Cimahi City Government location, at the Cibabat Hospital, Setiamanah, Ciseupan, and the Cimahi City Infantry Brigade Complex. Based on research results in 2021, all lakes will be in the moderately polluted category, while in 2022 they will be in the low-moderate pollutant category. Lake water quality that has improved is Setiamanah Lake and that in the Cimahi City Infantry Brigade Complex. The two lakes originally had moderate to moderate polluted status with an index value of 8.40 to 4.94, so efforts and control strategies are needed to reduce pollution in the 5 lakes. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49034 10.14710/presipitasi.v20i1.67-76 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 67-76 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 67-76 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49034/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/14719 2020-04-17T11:34:18Z presipitasi:RSA

ANALISIS PENGARUH PENATAAN RUANG TERHADAP KINERJA PEMBANGUNAN WILAYAH DI KABUPATEN WAROPEN PAPUA INDONESIA Ramandey, Lazarus Teknik Lingkungan penataan ruang, kinerja pembangunan Berbagai    permasalahan  penataan  ruang  di Kabupaten Waropen Papua   menunjukkan  bahwa   Rencana   Tata  Ruang   Wilayah   (RTRW )  Kabupaten Waropen Papua yang disusun tahun 2012  belum memiliki  kontribusi  positif terhadap penyelesaian permasalahan  tata ruang. Hal ini kemungkinan  disebabkan  karena terjadi inkonsistensi dalam penataan ruang. Penelitian ini mencoba untuk melihat konsistensi penataan ruang serta kaitannya dengan kinerja pembangunan  wilayah. Metode   yang  digunakan  untuk  melihat  konsistensi  penyusunan  RTRW dengan pedoman adalah analisis tabel pembandingan dilanjutkan dengan  analisis logika           verbal. Untuk mengetahui apakah  penyusunan   RTRW sudah memperhatikan kesinergian dengan wilayah sekitarnya (Inter-Regional Context) dilakukan   map   overlay   dilanjutkan   dengan   analisis   logika   verbal.   Untuk mengetahui  kinerja   perkembangan   wilayah  dilakukan  Principal  Components Analysis (PCA). Hasil analisis  menunjukkan bahwa inkonsistensi  dalam penataan ruang menyebabkan  berbagai  permasalahan  yang berakibat  pada menurunnya  kinerja perkembangan wilayah. Masalah utama yang harus mendapatkan perhatian lebih adalah infrastruktur, pertumbuhan pembangunan, pertumbuhan ekonomi, aspek transportasi dan properti baru. Universitas Diponegoro 2017-05-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14719 10.14710/presipitasi.v14i1.37-40 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 37-40 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 37-40 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14719/11221 Copyright (c) 2017 Jurnal  Presipitasi  :  Media  Komunikasi  dan  Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/65835 2025-05-18T20:39:07Z presipitasi:RCS

Determination of Air Quality Protection and Management Strategic Area : Case Study of Tangerang City Bontong, Septepanus Gala Permadi, Didin Agustian Benjamin, Precious Civil Engineering; Environmental Engineering Air Quality; air quality model; aqpma; emission inventory; risk level Metropolitan cities are often associated with anthropogenic activities that affect air quality. Tangerang, as a buffer city in the Greater Jakarta area, needs control strategies to tackle  severe air pollution problem. Government Regulation No. 22/2021 requires the establishment of Air Quality Protection and Management Areas (AQPMA) in every city, including Tangerang. The determination of AQPMA involve emissions inventories, air quality, population density, land use, and meteorological conditions, using secondary data and air quality modeling with AERMOD. The results of the emission inventory show that the largest contribution comes from the manufacturing and road transportation industries, with NOx 19,747, CO 556,341, PM10 27,001, PM2.5 22,080, SO2 2,233, and NMVOC 295,482 (in Gigagrams/year). The result of the air model  then accordance with measurements at AQMS Pasir Jaya in 2022. The average annual concentration results at this station are NOx 35, CO 1,200, PM10 38, PM2.5 39, and SO2 7.5 (in μg/m3). Ciledug is the sub-district with the highest population density, which is 19,233 people/km2. Based on AQPMA scores, eight very high-risk sub-districts must be a priority in mitigating clean air in Tangerang. A similar approach can be used in other cities to map vulnerability to air pollution as mandated by AQPMA. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/65835 10.14710/presipitasi.v21i3.852-868 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 852-868 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 852-868 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/65835/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39265 2022-02-16T03:26:18Z presipitasi:RSA

Analysis of the Effect of HVAC System Modification towards Indoor Air Quality (IAQ) and Microbiological Growth at Accommodation and Office Buildings in an Oil and Gas Industry Valentina, Sabrina Nasri, Sjahrul Meizar Herespatiagni, Rani Environment Health; Occupational Health and Safety; Industrial Hygiene; Occupational Hygiene; Environment Engineering, Public Health HVAC system; IAQ; microbiological growth; mold; relative humidity Indoor Air Quality (IAQ) problems, such as high relative humidity and microbiological (bacteria and mold) growth in accommodation and office buildings, can cause health effects for the occupants. People commonly have activities inside the buildings all day long. This study aimed to determine the impact of HVAC systems on IAQ parameters and microbiological growth. The study was conducted in accommodation and office buildings that had been identified with IAQ problems. The research methodology used a quantitative cross-sectional study design with statistical comparison analysis and statistical correlation analysis. The statistic results showed that relative humidity (RH) significantly had a strong correlation (r=0.520, 95% CI) with mold growth in ambient air of accommodation; O2 had a significantly strong correlation (r=0.541, 95% CI) with bacteria growth in ambient air at the office; VOC (r=0.853, 95% CI) and CO2 (r=0.803, 95% CI) had a very strong correlation with mold growth at office surface area. High humidity contributed to risk on IAQ (OR=50, 95% CI). Significant improvement was shown in relative humidity at all buildings, especially at the office, but mold and bacteria growth were offered only at the accommodation. Therefore, a comprehensive evaluation was needed to improve the IAQ and modify the HVAC system. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39265 10.14710/presipitasi.v18i2.306-316 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 306-316 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 306-316 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39265/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/9096 2020-04-17T11:32:07Z presipitasi:RVA

ORGANIC WASTE'S POTENTIAL AS RENEWABLE ENERGY AT SUPIT URANG LANDFILL IN MALANG CITY Saadiah, Riza Hermawan, Hermawan Hadiyanto, Hadiyanto Environmental Engineering; Environment waste, global warming, greenhouse gas emission, biogas, renewable energy. This research are to know the correlation of the number of population with the amount of waste inMalang city and biogas potential at Supit Urang landfill. Then also counting the percentage of biogaswhich has been used as gas fuel by citizens around the landfill and as electrical energy potency. Theaverage amount of waste in Malang city is 410,45 ton per day. Organic waste composition at SupitUrang landfill is 64,9% or in the average it’s about 137.989,57 kg per day. From that amount, theaverage of biogas which is produced is 19.146,57 m3 per day or about 574.397,05 m3 per month.Biogas utilization is for fuel gas by 408 houses near the location of that landfill, that’s about 18.385,19m3 per month or about 3,2%. Therefore that’s still has 96,8% biogas potential or about 556.011,86 m3per month which has not been utilized yet. That potency can produce electrical energy 2.613.255,75kWh per month or 3,63 MW. If the average efficiency level of conversion from biogas to electricity is35%, the electric potential become 914.639,51 kWh per month or as big as power station with energy1,27 MW Universitas Diponegoro 2015-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9096 10.14710/presipitasi.v12i2.71-77 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 12, No 2 (2015): September 2015; 71-77 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 12, No 2 (2015): September 2015; 71-77 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/9096/7367

oai:ojs.ejournal.undip.ac.id:article/56586 2023-08-18T02:24:32Z presipitasi:RCS

Promoting Geographical Indication of Banyuwangi Liberoid Coffee: A Community Capital Framework Faronny, Danniary Ismail Sunarharum, Wenny Bekti Hakim, Luchman Ilmu Lingkungan; Pengelolaan Sumberdaya Lingkungan; Pembangunan Communal assets; geographical indications; liberica coffee; community capital framework Promoting Geographical Indications (GI) for Liberica coffee in Banyuwangi is essential to enhance its recognition as a strategic economic commodity. This study aims to map communal assets using the Community Capital Framework (CCF) owned by coffee producers, supporting the development of GIs. Data was collected through on-site semi-structured questionnaires and interviews using a qualitative descriptive approach. The analysis, based on the CCF approach encompassing natural, cultural, human, social, political, financial, and built capital, allows for a comprehensive understanding of community resources. Integrating the CCF in promoting GI for Liberica coffee holds potential for sustainable development in Banyuwangi. Considering the seven key capitals (environmental, human, economic, infrastructure, social, cultural, and political) enables the formulation of a comprehensive strategy, ensuring product quality, market value, environmental sustainability, and the community's economic growth. By strengthening the Liberica coffee sector through the integration of CCF and GI promotion, the study facilitates heightened competitiveness, reputation, and market value, benefiting smallholder farmers and fostering overall economic growth. This approach aligns with the broader goals of sustainable development and contributes to the empowerment of the local coffee community in Banyuwangi. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56586 10.14710/presipitasi.v20i2.402-416 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 402-416 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 402-416 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56586/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20816 2020-04-17T11:37:32Z presipitasi:RSA

APLIKASI BOX MODEL SEDERHANA UNTUK ESTIMASI KONSENTRASI POLUTAN BLACK CARBON DI ATMOSFER Huboyo, Haryono Setiyo Samadikun, Budi Prasetyo Teknik Lingkungan air pollution, black carbon, box model, PM2,5 Box Model adalah salah satu pemodelan kualitas udara yang menggunakan formulasi matematis parameter-parameter yang mempengaruhi konsentrasi polutan di udara yaitu berupa arah dan kecepatan angin, serta ketinggian. Black carbon adalah komponen utama jelaga dan dihasilkan dari pembakaran bahan bakar fosil dan biomassa yang tidak sempurna serta memiliki dampak pemanasan pada iklim 460-1500 kali lebih kuat dari CO2. Tujuan dari penelitian ini adalah untuk mengetahui estimasi konsentrasi polutan black carbon di atmosfer dengan menggunakan pemodelan Box Model. Pengukuran PM2.5 menggunakan HVAS (High Volume Air Sampler) dengan metode gravimetri kemudian pengujian black carbon pada PM2,5 menggunakan metode reflektansi dengan menggunakan EEL Smokestain Reflectometer, kemudian melakukan perhitungan estimasi black carbon dengan box model. Pengambilan sampel dilakukan pada lima titik yang tersebar di kota Semarang sebanyak tiga kali pengukuran. Hasil penelitian didapatkan bahwa rata-rata perhitungan estimasi black carbon menggunakan box model  tidak jauh berbeda atau relatif sama dengan rata-rata hasil pengujian black carbon yang didapatkan dari sampel pengukuran di lapangan Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20816 10.14710/presipitasi.v15i2.148-151 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 148-151 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 148-151 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20816/14091 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/67129 2025-12-04T00:06:38Z presipitasi:RCS

Sustainability Strategy for Solar Power Plant: Integrating Sustainable Development and Rural Enviroment Nurhanifah, Nita Viviani Rachmawatie, Dessy Solar power plant; sustainable development; rural environment; MICMAC The development of renewable energy is essential amid the global energy transition, yet the sustainability of solar power plants—both commercial and household—in Bali Province remains low. Access to electricity is a vital component of sustainable development, helping to bridge the gap between rural and urban areas in Indonesia. In 2016, solar power plants were established in Karangasem Regency to electrify rural communities that previously lacked access due to difficult geographical conditions. This study aims to identify and analyze the key factors influencing sustainable solar power growth in Karangasem while offering strategic recommendations. Employing a qualitative approach and the MICMAC method, it explores economic aspects such as job creation, poverty alleviation, and energy investment; social factors like energy access and community participation; environmental considerations including waste management and climate mitigation; and institutional elements involving local regulations and public-private collaboration. The findings highlight that fostering local economic development (ESD), sustainably managing resources (SNRU), and reducing air pollution (AP) are crucial for enhancing environmental quality (EQI) and attracting investment (EI). The study emphasizes the need for collaborative frameworks and robust policy measures to promote renewable energy, ensuring long-term sustainability and advancing rural development and environment in Karangasem Regency, Bali Province.  Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67129 10.14710/presipitasi.v22i1.314-329 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 314-329 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 314-329 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67129/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/44881 2022-12-14T20:16:03Z presipitasi:RSA

Decision Analysis of the Composting Unit at Pluit Emplacement, Jakarta Using the Open Bin, Windrow, and Static Pile Methods for Biodegradable Waste Sari, Mega Mutiara Inoue, Takanobu Harryes, Regil Kentaurus Yokota, Kuriko Septiariva, Iva Yenis Suhardono, Sapta Kato, Shigeru Notodarmojo, Suprihanto Prameswari, Stacia Dea Suryawan, I Wayan Koko Debris; open bin; windrow; static pile; decision analysis Indonesian marine debris of aquatic waste in Jakarta is managed by the UPK of the Water Agency, one of which is the Pluit Employment. Several composting methods can be used and adapted to the available circumstances and needs. The composting process is carried out by utilizing the supply of oxygen, nutrients, water, and temperature control. This study aims to analyze the selection of alternative composting systems that can be carried out for planning the composting unit at Pluit Employment. Selection analysis was carried out using the Utility Theory and Compromise program methods. Alternative 1: This alternative uses a composting system using an open bin. Alternative 2 uses a simple windrow system with garbage piled up without heavy equipment during operation. Alternative 3 uses a composting system with a static pile system with a machine turning it over. In the composting method chosen, alternative 2. The distance between compost for workers' movement space, it can reach 1 m as in the TPS 3R Technical instructions, that because it does not use machines, the land used for machine movement is reduced. Limited land can be utilized for the amount of windrow so that the amount of processed waste can be more significant. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/44881 10.14710/presipitasi.v19i1.89-98 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 89-98 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 89-98 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/44881/pdf_1 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10963 2016-05-04T09:08:33Z presipitasi:RVA

IDENTIFIKASI DAYA TAMPUNG BEBAN CEMARAN BOD SUNGAI DENGAN MODEL QUAL2E (STUDI KASUS SUNGAI GUNG, TEGAL – JAWA TENGAH) Nugraha, Winardi Dwi Cahyorini, Lintang Environmental Engineering Gung River, Total Maximum Dailly Load, Qual2E, Simulation Gung  River  is  a  one  of  the  river  in  Central  Java  which  pass  trough  Tegal  Region  with total length about 48 km. The important thing in environmental problems that faced by Gung River such as increasing the load of water pollution.  BOD is one of the water pollution indicator in the streams. To make easier in knowing the the amount of Total Maximum Dailly Load (TMDL)in Gung River , it  is identified TMDL  of BOD uses modeling principal with Qual2E Modelling. And than  it  is  compared  with    the standar  streams  due  to  PP  No.  82/2001  about  Water  Quality Management and  Water Pollution Control. The result of simulation due to TMDL uses minimum flow rate is compared with standard stream ini PP 82 / 2001. It indicate that the quality could not meet with the standard stream related with the class 1 and class 2. In Reach 1 ( km 1 – 3  ) could meet with standar stream of class 3 with TMDL 1,43 – 9,98 kg/day. All the stream along the river could meet with standar stream ini class 4 with TMDL of BOD is 7,13 – 865,34 kg / day. The  result  of  simulation  due  to  TMDL  uses  maximum    flow  rate  is compared  with  standard stream  ini  PP  82  /  2001.  It  indicate  that  the  quality  could  not  meet with the  standard  stream related with the  class 1 and class 2. In Reach 1 ( km 1 – 3  ) could meet with standar stream of class  3  with  TMDL  72.06  –  3134,51  kg/day.  All  the  stream  along  the  river could  meet  with standar stream ini class 4 with TMDL of BOD is 7277,82 – 10.340,27 kg / day. Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10963 10.14710/presipitasi.v3i2.93-101 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 93-101 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 93-101 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10963/8653

oai:ojs.ejournal.undip.ac.id:article/57651 2025-05-18T20:36:13Z presipitasi:RSA

Risk Factors of Unsafe Behavior among Construction Workers Putri, Sindy Septyana Wahyuningsih, Anik Setyo Keselamatan dan Kesehatan Kerja Construction; unsafe behavior; risk factors Globally, construction is considered the riskiest industry and construction workers have twice the risk of injury than workers in other jobs. PUPR Ministry data for 2017 states that construction is the largest contributor to accident cases in Indonesia with an average incidence of 32% each year. Unsafe behavior is the most common cause of work accidents. Based on observations, it was found that workers engaged in unsafe behavior in the Pekalongan City tidal food control project with an average incidence of 15% per day. This study aims to determine what factors are associated with unsafe behavior. The type of research used is analytic observational with a cross sectional approach and the sampling technique uses simple random sampling. The population of this study was 115 workers and the sample size was determine using the Slovin formula (error rate of 5%) obtained by 95 respondents. The research instruments used questionnairs and observation sheets. The results of the bivariate analysis showed that there was a significant connection between knowledge (p=0.006), supervision (p=0.000), and fatigue (0.000) on unsafe behavior. The results of the multivariate analysis show that supervision is the most powerful factor influencing unsafe behavior.  Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57651 10.14710/presipitasi.v21i1.41-50 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 41-50 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 41-50 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57651/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/26363 2020-08-30T22:28:29Z presipitasi:RSA

Potential of Acid Mine Formation in PIT 3000, Toraja Block, PT Trubaindo Coal Mining Based on Geochemical and Mineralogical Characteristics Study of Overburden and Underburden Rocks Potensi Pembentukan Air Asam Tambang Pada PIT 3000, Blok Toraja, PT Trubaindo Coal Mining Berdasarkan Studi Karakteristik Geokimia dan Mineralogi Batuan Overburden dan Underburden Winarno, Tri Ali, Rinal Khaidar Langit, Wesly Rambu Environmental Geology Coal mine; mine acid water; mineralogy; geochemistry Geologi Lingkungan Tambang batubara; air asam tambang; mineralogi; geokimia Coal mining in Indonesia is mostly applied by an open pit system which causes the rocks in the mining location to be exposed to the surface, so that it will be easy to react with air and water directly. The high content of sulphide minerals such as pyrite and marcasite in coal mining site, has the potential to produce mine acid water. Mine acid water causes environmental pollution and a threat to aquatic and soil ecosystems by increasing the concentration of other heavy metal ions. This study aims to identify the mineral content of the overburden rock layers to determine the type of sulfide minerals forming acid mine and neutralizing minerals in rocks. The methods used in this study are field investigations, mineralogical content analysis, geochemical characteristics and measured stratigraphic to evaluate mineralogical content, geochemical characteristics and depositional environmental facies of overburden and underburden rocks from the Pit 3000 coal seam. The results showed that overburden rocks were composed by claystone with the thickness ranges 1.60 m – 5.15 m, whereas underburden rocks are characterized by diverse lithology such as claystone, siltstone and sandstone with the thickness ranges from 0.20 m – 4.50 m. Based on geochemical analysis on 18 overburden rock samples, it is known that overburden layers have characteristics that are dominated by Non Acid Forming (NAF) rocks with 83% NAF, 11% Potential Acid Forming (PAF) and 6% uncertain. The characteristics of the underburden layer are dominated by PAF rocks with 45% PAF, 19% NAF and 36% uncertain. Penambangan batubara di Indonesia kebanyakan dilakukan dengan sistem tambang terbuka, yang menyebabkan batuan yang ada pada lokasi penambangan tersingkap ke permukaan, sehingga mudah bereaksi dengan udara dan air. Tingginya kandungan mineral sulfida seperti pirit dan markasit pada lokasi pertambangan batubara, berpotensi menghasilkan asam tambang. Air asam tambang dapat menyebabkan terjadinya pencemaran lingkungan yang menjadi ancaman bagi ekosistem air dan tanah dengan meningkatkan konsentrasi logam berat. Penelitian ini bertujuan untuk mengidentifikasi kandungan mineral pada lapisan batuan overburden dan untuk mendeterminasi jenis mineral sulfida pembentuk asam tambang. Metode yang digunakan adalah penyelidikan lapangan, analisis mineralogi, geokimia dan pengukuran stratigrafi terukur untuk mengevaluasi kandungan mineralogi dan karakteristik geokimia pada batuan overburden dan underburden lapisan batubara Pit 3000. Hasil penelitian menunjukkan bahwa batuan overburden tersusun oleh batulempung dengan ketebalan berkisar 1,60 m – 5,15 m, sedangkan batuan underburden dicirikan oleh litologi yang beragam seperti batulempung, batulanau dan batupasir dengan ketebalan berkisar 0,20 m – 4,50 m. Berdasarkan analisis geokimia pada 18 sampel batuan overburden, diketahui bahwa lapisan overburden memiliki karakteristik yang didominasi oleh batuan Non Acid Forming (NAF) dengan 83% NAF, 11% Potential Acid Forming (PAF) dan 6% uncertain. Karakteristik lapisan underburden didominasi oleh batuan PAF dengan 45% PAF, 19% NAF dan 36% uncertain. Universitas Diponegoro 2020-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26363 10.14710/presipitasi.v17i1.52-61 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 52-61 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 1 (2020): Maret 2020; 52-61 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26363/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/45868 2023-03-29T21:11:54Z presipitasi:RCS

Green Building Assessment of Cilacap State Polytechnic: Building A Prasetia, Vicky Rahayu, Theresia Evila Purwanti Sri Tarigan, Roy Aries Permana Teknik Listrik; Teknik Lingkungan, Teknik Mesin Assessment; greenship; silver category Buildings to achieve sustainable development must meet environmental criteria. This environmentally friendly building design is often referred to as a green building. The Green Building concept aims to reduce the negative impact on the environment from the construction and utilization of buildings. This study will discuss the criteria and requirements that must be met by company buildings to be categorized as Green Buildings according to the Green Building Council Indonesia (GBCI) and obtain a Greenship certificate, as well as any components at the construction and maintenance stage that affect the fulfillment of these requirements. This study uses a quantitative method by the green ship standard version 1.1. The greens criteria assessment in Building A resulted in 51 points. The results of this assessment explain that Building A is included in the silver category. This result explains that 44% of Building A's facilities have met the green building criteria. Upgrading from silver to gold category needs to increase 7 points by adding facilities, standard operating procedures, and policies. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45868 10.14710/presipitasi.v19i2.290-302 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 290-302 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 290-302 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/45868/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/45868/10799 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10994 2016-05-04T22:01:25Z presipitasi:RVA

PENGOLAHAN LIMBAH CAIR INDUSTRI GULA DENGAN TEKNOLOGI PLASMA SISTEM NON CONTACT ELECTRODES DENGAN OXYGEN ATMOSPHERE TERHADAP TEGANGAN DAN BANYAKNYA SIRKULASI Oktiawan, Wiharyanto Sutrisno, Endro Fuadah, Ulfatul Environmental Engineering Plasma, COD, limbah industri gula . Universitas Diponegoro 2009-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10994 10.14710/presipitasi.v6i1.6-12 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 6-12 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 6-12 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10994/8678

oai:ojs.ejournal.undip.ac.id:article/64268 2025-05-18T20:37:10Z presipitasi:RSA

Microbiologically Induced Corrosion (MIC) of Carbon Steel in Biodiesel: a Comparative Analysis Junaidi, Junaidi Setiadi, Tjandra Devianto, Hary Schmahl, Wolfgang Pusparizkita, Yustina Metanoia Corrosion; biofilm; hydrocarbons; biofuels; microorganism The damaging process known as microbiologically influenced corrosion (MIC) can be triggered by the bioactivities of microorganisms. The occurrence of this phenomenon can be attributed to the presence of biodiesel in carbon steel diesel mixture storage tanks, since the biodegradability of the fuel promotes microbial development and the MIC process. In this work, the effects of different biodiesel concentrations (B0, B15, B20, B30, and B100) on biocorrosion in ST-37 carbon steel caused by three species were investigated. Some of the species confirmed to be involved are S. marcescens, B. megaterium and B. lichenisformis. These three species are undoubtedly able to survive in a biodiesel-based media. In addition to producing EPS, a species that may slow the rate at which carbon steel corrodes, biodiesel can be utilised as a supply of nutrients. Nonetheless, the diverse life cycles of microbes have the potential to accelerate corrosion of carbon steel. The average corrosion rate with the effect of B. lichenisformis is lower than the other two species, notably in the B100, with fewer colonies than S. marcescens and B. megaterium.Some of the species confirmed to be involved are S. marcescens, B. megaterium and B. lichenisformis. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64268 10.14710/presipitasi.v21i2.381-389 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 381-389 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 381-389 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64268/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/32371 2020-12-16T21:32:55Z presipitasi:RSA

Peluang Penerapan Produksi Bersih pada Industri Tepung Sagu Opportunities for Application of Cleaner Production in the Sago Flour Industry Maulidia, Vera Jati, Dian Rahayu Apriani, Isna Bhaskara, Renaldi Surya Firmansyah, Muhammad Teknik Lingkungan; Manajemen Lingkungan; Pengelolaan Lingkungan Industri Tepung Sagu; Sagu; Tepung Sagu Environmental Engineering Sago; Sago Flour; Sago Flour Industry Peningkatan permintaan olahan sagu berdampak pada peningkatan produksi tepung sagu. Peluang produksi tepung sagu kemudian dimanfaatkan sebagian pengusaha untuk memproduksi dengan skala pabrik. Meningkatnya daya saing antar pengusaha menyebabkan banyak aspek diperlukan untuk menaikkan kualitas pemasaran diantaranya usaha untuk mengurangi limbah yang dihasilkan dari setiap proses produksi. Penelitian ini bertujuan untuk mengidentifikasi proses produksi tepung sagu dan memberikan rekomendasi minimalisasi limbah dan teknologi bersih pada industri tepung sagu. Metode wawancara dan observasi lapangan dilakukan pada penelitian ini. Volume timbulan limbah yang dihasilkan pada proses produksi tepung sagu meliputi 10 kg karung bekas, 10 kg ceceran lamantak, 100 kg ampas sagu, 60 kg ceceran tepung sagu, 20 kg abu sisa pembakaran dan 50 kg tepung sagu kasar. Limbah cair berupa air bekas sebanyak 36.042 liter. Metode produksi bersih yang dapat dilakukan yaitu mengurangi penggunaan air cucian, menjual kembali karung bekas menjadi kerajinan tangan, mengembalikan ceceran tepung dan tepung sagu kasar ke bak pembongkaran dan penyurahan, menjual abu sisa pembakaran, menjual ampas sagu menjadi pakan ternak bebek dan mengolah limbah cair produksi menggunakan IPAL berkapasitas minimal 5.000 liter. Metode yang ditawarkan dapat mengurangi penggunaan air bersih sebanyak 2.358 liter dari total kebutuhan air sekali produksi 38.400 liter. Increased demand for processed sago has an impact on increasing sago starch production. The opportunity to produce sago flour is then used by some entrepreneurs to produce on a factory scale. Increasing competitiveness among entrepreneurs causes many aspects to be needed to improve marketing quality, including efforts to reduce waste generated from each production process. This study aims to identify the production process of sago starch and provide recommendations for waste minimization and clean technology in the sago flour industry. Interview methods and field observations were carried out in this study. The volume of waste generated in the production process of sago flour includes 10 kg of used sacks, 10 kg of spilled lamantak, 100 kg of sago dregs, 60 kg of spilled sago flour, 20 kg of burning ash and 50 kg of coarse sago flour. Liquid waste in the form of used water is 36,042 liters. Clean production methods that can be done are reducing the use of washing water, reselling used sacks into handicrafts, returning spilled flour and coarse sago flour to the demolition and dispensing basins, selling burning ashes, selling sago dregs for duck livestock feed and processing production liquid waste. using IPAL with a minimum capacity of 5,000 liters. The method offered can reduce the use of clean water by 2,358 liters of the total water requirement of 38,400 liters once produced Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/32371 10.14710/jis.%v.%i.%Y.%p Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 263-271 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 263-271 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/32371/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/79206 2026-04-21T07:44:25Z presipitasi:RVA

Environmental Accounting and Corporate Disclosure: Global Research Trends and Conceptual Clusters Fridatien, Ericke Puspita, Annisa Sila Ammar, Marah Bibliometric; clean water; ESG; green accounting; sustainability report This study provides a bibliometric review based on 1,891 Scopus-indexed records to integrate the trends and conceptual framework discussed in environmental accounting and corporate disclosure research. The results show intensive research growth since 2015, mainly led by Chinese, American, and Australian authors. Three categories were generated through thematic analysis: environmental strategies, corporate social responsibility, and accountability modes. Environmental accounting has developed from reporting to a strategic management tool, which is closely related to corporate governance, reputation, and sustainability performance. Additional findings show that the strength of international collaboration networks has increased over time, especially with Chinese and European institutions, reflecting a trend towards increasingly globalized research collaboratives. The keyword co-occurrence map indicates a shift in research priorities, from early attention to environmental cost accounting to the latest emphasis on climate-related disclosure, ESG integration, and low-carbon transition strategies. It also shows an increasing academic focus on regulatory drivers, including IFRS S2, the EU CSRD, and national emission policies. The cross-cluster comparison of differences implies a growing similarity in environmental responsibility accounting, corporate strategy, and stakeholder expectations, which underlines a move towards more consistent and decision-useful sustainability reporting systems. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79206 10.14710/presipitasi.v23i1.219-232 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 219-232 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 219-232 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79206/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/1476 2012-03-29T09:12:37Z presipitasi:RVA

INTERAKSI PELAKU DAUR ULANG SAMPAH MELALUI UJI REGRESI LINEAR DI KELURAHAN PANGGUNG LOR, KUNINGAN DAN BANDAR HARJO KOTA SEMARANG Maryono, Maryono Andriyani, Riki Environmental Engineering; Environment Solid Waste Recycling, Linear Regresion Test, Informal Sector, Panggung Lor, Kuningan and Bandarharjo, Semarang Recycling  process  and  activities  are  part  of  the  solid  waste  management.  Informal  Actor  such  as Scavengers,  Small  Middleman  and  Big  Middleman  has  a  unique  networking.  The  interaction  can beclassified  as node, subpoint and centerpoint. They has a relationships which representation of solid waste  transport  among  area  and  region.  Based  on  Sejati  research  (2009),  the  networking  and relationships among the informal actor of Recycling process like can be astimated as a mathematic model. Regrestion analysis was running to test the mathematic model. Panggung Lor, Bandarharjo and  Kuningan,  at  Semarang  was  chosen  as  location  study  because  of  the  characteristic  of  the Recycling activities.  Universitas Diponegoro 2012-02-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1476 10.14710/presipitasi.v7i1.1-12 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 1-12 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 1-12 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1476/1238

oai:ojs.ejournal.undip.ac.id:article/49123 2023-01-04T02:30:50Z presipitasi:RVA

Virtual E-participation in Saving the Environment in the Digital Age Through Change.org Rosmita, Rosmita Purnomo, Eko Priyo Mustari, Nuryanti Teknik Lingkungan E-participation; social media; change.org The purpose of this research is to see how the role of the Change.org website and how the Change.org account interacts with Twitter social media accounts through mentions that are used to increase public awareness of the environment. This study uses qualitative research, which uses Q-DAS (Qualitative Data Analysis Software) to analyze the data using Nvivo 12 Plus and Vosviewer software. The results of this study indicate that Change.org, in voicing environmental cleanliness, uses social media as a media campaign. The social media used by Change.org itself is Twitter. The change.org Twitter account is one of the largest environmental petitions; the form petition carried out by Change.org is by calling on @Cocacola @McDonalds and BurgerKing, which contains various petitions to find solutions for plastic bottles, which many say are choking the environment. The ability of online petitions to facilitate requests for change in public policies and connect the public with policymakers shows that online petitions can increase individual and group political participation. The existence of a petition on the @Change.org Account can gradually save the environment. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49123 10.14710/presipitasi.v19i3.701-709 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 701-709 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 701-709 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49123/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/12484 2020-04-17T11:33:05Z presipitasi:RSA

KONTRIBUSI PARAMETER METEOROLOGI DAN KONDISI LALU LINTAS TERHADAP KONSENTRASI PENCEMAR NO2 DI KOTA SEMARANG Istirokhatun, Titik Ratnasari, Elaeis Noviani Utomo, Sudarno Environmental Engineering NO 2 concentration, meteorology, number of vehicle Air pollution and its public health effects are drawing increasing concern from the environmental health research community, environmental regulatory agencies, industries as well as public. Nitrogen dioxide (NO2) is one of those common air pollutants that potentially major cause health problems. Transportation contributed most of the air pollution. In addition, the number of vehicles that are passing and queuing on the crossroads because of traffic light can affect the concentration of NO 2. Besides, in these places there are a lot of road users which are potentially exposed by contaminants, so information about the concentration of NO2 on road side is important to know. This study aimed to investigate the impact of meteorological factors and the number of vehicles on NO2 concentrations. Impinger fritted bubler was used for air sampling, and Griess Saltzman method was used for determining NO2 concentration. Sampling and calculation of the number of passing vehicles were performed 3 times ie in the morning, afternoon and evening. Based on the results of the study, the highest concentrations of NO2 were on the range of 0.7-4.2 mg/Nm3. Universitas Diponegoro 2016-10-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/12484 10.14710/presipitasi.v13i2.48-56 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 2 (2016): September 2016; 48-56 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 13, No 2 (2016): September 2016; 48-56 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/12484/9425 Copyright (c) 2016 Jurnal Presipitasi https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/56738 2025-05-18T20:39:07Z presipitasi:RSA

The Effect of Contact Time and Oil Palm Frond Activated Carbon Dose as an Adsorbent in Decreasing Iron (Fe) in Groundwater Prasaningtyas, Asri Febrianti, Nia Azzahra, Rahmi Ngang, Daniel Aprilianus Environmental Engineering; Environmental Science; Water; Activated Carbon Activated carbon; Fe; Groundwater; oil palm frond Groundwater well is the alternative well providing water source in the city of Balikpapan, especially in its sub-district of Karang Joang, North Balikpapan, where the location has not been fully integrated with PDAM water pipes. Normally, the groundwater has minerals including iron (Fe). For the drinking water, the concentration standard of Fe follows the national law of Permenkes No. 493/Menkes/Per/IV/2010 which is 0,3 mg/L as the threshold. Oil palm frond is an organic matter that is found easily in East Kalimantan, containing high levels of lignin and cellulose which used to produce activated carbon. The activated carbon was evaluated with five variant doses of 5; 10; 15; 20; and 25 g/L over groundwater and the contact time of 30; 45; 60; 75; and 90 minutes. The time contact was measured by the rotation of the stirrer with the speed of 100 rpm. The results showed the optimum time contact of 30 minutes with the adsorbent dose of 5 g/L with the elimination efficiency of 99,56%. The time contact and the adsorbent dose variants have insignificant effect because of the least time contact as well as the least dose are the optimal condition in decreasing Fe Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56738 10.14710/presipitasi.v21i3.660-669 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 660-669 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 660-669 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56738/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/37536 2022-02-16T03:26:18Z presipitasi:RCS

Implementation of Zero Etanol in the Analysis of Lambucid Tablet Sampling at PT. Kalbe Farma Tbk Nurhidayanti, Nisa Rusli, Deni Teknik Lingkungan; ; Rekayasa Ilmu Lingkungan; Kesehatan Lingkungan zero waste, ethanol, analysis, lambucid tablets PT. Kalbe Farma Tbk Bekasi is one of the pharmaceutical industries in Indonesia which has an essential role in the world of health because it produces several different preparations of drugs, one of which is lambucid tablets as medicine for heartburn. The ethanol waste produced in the production of lambucid tablets is toxic and can pollute the environment if it is not managed correctly. In testing the levels of the active substance in the Lambucid tablet product, it is known that the analysis process produces quite a lot of ethanol waste. This study aims to implement a method of developing the lambucid tablet production analysis test without making ethanol waste. The development method for removing ethanol in the analysis of lambucid tablet samples was carried out by replacing the titration method, which originally required quite a lot of ethanol to become an analytical method based on MA Tentative Promag Fruity Strawbery Tablet with number: MP-I 664253 A, this method has been tested by the team. RnD Andev PT.Kalbe Farma so that the data obtained are valid data with the advantage of not producing ethanol waste in each analysis. Through this method, the company can save Rp. 46.800.000 per year for the purchase of pure ethanol. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/37536 10.14710/presipitasi.v18i2.212-218 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 212-218 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 212-218 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/37536/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/5098 2016-05-21T15:44:06Z presipitasi:RVA

:NALISIS KINERJA SISTEM INSTALASI PENGOLAHAN LUMPUR TINJA KOTA MAGELANG Sudarno, Sudarno Teknik Lingkungan anaerobic, aerobic, facuttative, sludge drying bed, Magelang Domestic wastewater treatment was needed for every towns. This domestic wastewater such black water and grey water should  be treated for not poltuted the environment. Magelang was on of town which has have domestic treatment plant with capacity of 20,5m3/dayThis plant  was done by Dinas Pengendalian  Lingkungan Hidup. It had many several series treatment unit consisted of equalizing basin unit, anaerobic lagoon, facultative lagoon maturation lagoon and sludge drying bed. Further more, after having all of treatment steps, the treated efftuent could safely discharged to sufface water bodies without causing poltution problem Universitas Diponegoro 2006-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/5098 10.14710/presipitasi.v1i1.7-12 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 7-12 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 7-12 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/5098/4624

oai:ojs.ejournal.undip.ac.id:article/51104 2023-08-18T02:24:32Z presipitasi:RCS

Evaluation of the Success of the Watershed Rehabilitation Project in Bombana Regency Based on Cook Method’s Runoff Coefficient Nuralamsyah, Ery Marselina, Mariana tenik lingkungan Watershed; rehabilitation; runoff coefficient; cook method; physical parameters Watersheds have an important role in managing rainwater. A good watershed can provide sufficient water for the community in the dry season and does not cause flooding in the rainy season. Therefore, watershed preservation is necessary as an effort to maintain or improve its function. Rehabilitation is an effort to restore, maintain, and improve the watershed function. In this study, rehabilitation was carried out in an area of 285 ha which cuts two watersheds, Langkapa and Poleang watershed. The success of this rehabilitation can be reviewed through the runoff coefficient before and after rehabilitation. The runoff coefficient is a value that expresses the percentage of rainwater that turns into surface runoff water. That value can be an indicator of the watershed quality. The determination of the runoff coefficient in this study used the Cook Method which considers four physical parameters, land cover, slope, soil infiltration, and surface deposit/flow density. The results showed the runoff coefficient decreased after the rehabilitation from 68.54% to 65.85% which means the rehabilitation has improved the watershed quality. But those change is not significant because the rehabilitation location actually is not the priority land (critical land) that needs rehabilitation. Universitas Diponegoro 2023-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51104 10.14710/presipitasi.v20i2.305-315 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 305-315 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 2 (2023): July 2023; 305-315 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51104/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/20778 2020-04-17T11:36:35Z presipitasi:RSA

POTENSI GAS RUMAH KACA CO2 PADA PENGOLAHAN MUNICIPAL SOLID WASTE DENGAN METODE BIODRYING Hardyanti, Nurandani Hadiwidodo, Mochtar Saraswati, Lutfi Teknik Lingkungan Biodrying; CO2; emisi; gas rumah kaca Jumlah sampah di Indonesia semakin meningkat, seiring dengan peningkatan jumlah penduduk. Namun, pengolahan sampah di Indonesia masih berupa penimbunan sampah di TPA yang menimbulkan dampak negatif bagi lingkungan. Oleh karena itu diperlukan suatu pengolahan sampah alternatif yang dapat meminimalisir pencemaran salah satunya adalah pencemaran udara. Biodrying merupakan salah satu metode yang menawarkan solusi berkelanjutan untuk pengolahan sampah perkotaan. Namun, proses biodrying masih menghasilkan gas rumah kaca. Tujuan penelitian ini adalah untuk mengetahui  bagaimana pengaruh penambahan debit udara dan variasi debit udara terhadap parameter emisi gas rumah kaca, terutama CO2 pada pengolahan Municipal Solid Waste (MSW) dengan metode biodrying dan mengetahui berapa besar debit udara yang optimum untuk menghasilkan emisi gas CO2 yang paling minimum pada pengolahan Municipal Solid Waste (MSW)  dengan metode biodrying. Variasi debit udara pada penelitian ini adalah 0 l/m, 2 l/m, 3 l/m, 4 l/m, 5 l/m dan 6 l/m. Pengambilan sampel emisi dilakukan pada hari ke-1,ke-2, ke-15 dan ke-30. Hasil dari penelitian ini adalah proses biodrying menghasilkan emisi dengan rata-rata CO2 sebesar 6214,66 ppm. Penambahan debit udara pada proses biodrying mampu menurunkan emisi CO2 sebesar 74,5%. Debit optimum yang diperoleh dari penelitian ini adalah sebesar 6 liter/menit Universitas Diponegoro 2018-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20778 10.14710/presipitasi.v15i2.86-93 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 86-93 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 2 (2018): September 2018; 86-93 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/20778/14080 Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/67493 2025-12-04T00:06:38Z presipitasi:RSA

Unleashing the Power of Oxygen-Doped Graphitic Carbon Nitride: Enhancing Neutral Red Removal Efficiency Tamyiz, Muchammad Annafis, Maulana Ahmad Dhafa, Ahza Refkyan Bulloh, Muhammad Basir Chis Pisal, Mohd Hanif Mohd Teknik Lingkungan Adsorption; g-C3N4; heterogeneous; neutral red; photocatalysis Textile industry wastewater often contains persistent pollutants like neutral red dye, which are challenging to break down and harmful to ecosystems. This study introduces oxygen-doped graphitic carbon nitride (O-g-C3N4) as a photocatalyst to degrade neutral red dye under visible light. Synthesized using a single-step calcination of urea, dicyandiamide, and oxalic acid, O- g-C3N4 was tested for its efficiency in neutral red removal through adsorption and photocatalytic degradation, both in light and dark conditions. Results showed that O- g-C3N4 quickly adsorbed the dye, reaching equilibrium in 30 minutes and achieving a maximum adsorption capacity of 1.86 mg g-1, surpassing bulk g-C3N4. Kinetic analysis indicated that adsorption followed a pseudo-second-order model, suggesting chemisorption as the primary mechanism. Under visible light, O- g-C3N4’s photocatalytic degradation reached 86% neutral red removal, compared to 51% with bulk g-C3N4, largely due to improved light absorption and reduced electron-hole recombination. Degradation of neutral red followed pseudo-first-order kinetics, with O- g-C3N4’s reaction rate three times greater than bulk g-C3N4. The Sips isotherm best fit the adsorption data, confirming heterogeneous active sites and multilayer adsorption. These findings highlight O- g-C3N4’s potential for environmental remediation. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67493 10.14710/presipitasi.v22i1.69-80 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 69-80 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 69-80 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67493/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/42805 2022-02-19T00:21:43Z presipitasi:RVA

Implementation of Environmental Health Services (Sanitation Clinic) in Public Health Centers Indonesia Arumdani, Intan Sekar Arumdani, Indah Sekar Berlian, Alifia Intan Kesehatan Lingkungan Counseling; environmental based disease; Environmental health; Inspection; intervention; sanitation clinic; The Indonesian government has implemented clinical sanitation to improve a healthier environment and reduce mortality from environmental-based diseases. This effort is carried out to reduce the incidence of environmental-based diseases such as diarrhea and Acute Respiratory Infections (ARI). However, in 2017 the number of ARI sufferers in one of the provinces in Indonesia reached 45.38%, while diarrhea reached 28.3%. The diarrhea mortality rate increased to 4.76% in 2018, while the prevalence of ARI reached 9.1%. Therefore, this article aims to examine the performance of the sanitation clinic program at the Indonesian Health Center. The review method used is the narrative. Total percentage of 78.33% for the category of public health centers that have carried out the stages of sanitation clinics starting from the counselling stage to the intervention stage following established regulations. This percentage is still low because it has not received a 100% score. The implementation of the program has not been supported by adequate counselling media. In addition, the Public Health Center does not yet have a counselling room, and there is still a shortage of operational funds. Monitoring and evaluation need to be carried out to improve the service performance of the sanitation clinic program. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42805 10.14710/presipitasi.v18i3.536-545 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 536-545 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 536-545 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/42805/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10954 2016-05-04T09:08:33Z presipitasi:RVA

EVALUATION ON COMMUNITY BASED FOREST MANAGEMENT IMPLEMENTATION IN RANDUBLATUNG, BLORA Susilowati, Indah Esariti, Landung Environmental Engineering CBFM, social welfare, forest preservation Community Based Forest Management (CBFM) program is implemented so that forest resource benefit and management can be functioned according to optimal and proportional contribution. Randublatung  forest  in Blora  Regency  represents  forest  area  region  applying  the  CBFM program. Due to constraints in CBFM implementation and policy in Randublatung, an evaluation study is conducted, and Jegong village is chosen as a sample area. The mix approach using less quantitative more qualitative method  is depicted to describe the phenomenon and justify the reasons behind the situation. Evaluation is conducted using four important aspects namely CBFM management, sharing procedure, implementation stages and institutional system. Result shows  that  CBFM  implementation  in  Jegong  village  is  suitable,  although  it  is  found some constraint in the implementation process. To conclude, four strategies are created to respond for better application of CBFM Randublatung. There are developing the implementation stages in  CBFM, institutional  development  strategy,  multistakeholders  collaboration  strategy  and sharing contribution strategy. Universitas Diponegoro 2007-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10954 10.14710/presipitasi.v3i2.25-32 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 25-32 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 3, No 2 (2007): Vol 3, No 2 (2007); 25-32 2550-0023 1907-817X en

oai:ojs.ejournal.undip.ac.id:article/57732 2024-06-14T22:00:52Z presipitasi:RSA

The Effect of Composition, Pyrolysis Temperature and Adhesive Concentration on the Proximate Content and Calorific Value of Biobriquettes from Durian Skin, Corn husk and Fish Bones Waste Novitrie, Nora Amelia Setiani, Vivin Camalia, Aisyah Dinda Briquettes; biomass; emissions; waste Briquettes are an alternative energy derived from biomass. Biomass material can be obtained from plantation waste such as durian peel, agricultural waste such as corn husk and waste from the fisheries sector such as fish bones. Waste of corn husks, durian peel and fish bones have the potential to become biomass material as an alternative energy. The aim of this research is to analyze the effect of variations in composition, pyrolysis temperature and adhesive concentration on the quality of biobriquettes and emissions resulting from the combustion process. The dried waste materials is then pyrolyzed for 4 hours at 350 ℃ and 500 ℃. Proximate testing was carried out to determine the quality of the biobriquettes. The parameters analyzed in this test include moisture content, ash content, volatile matter content, bound carbon content and heating value. The results of the study revealed that the best sample variations were found in briquettes with a composition of 50% durian peel [T1] [c2] : 50% corn husk with a pyrolysis temperature of 350℃ and an adhesive concentration of 7%. The level of CO emissions produced when burning briquettes is 1,700 mg/Nm3 and SO2 is 0.741 mg/Nm3. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57732 10.14710/presipitasi.v20i3.727-739 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 727-739 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 727-739 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/57732/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/57732/14392 Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/26002 2020-08-30T23:24:11Z presipitasi:RSA

Evaluation of Domestic Wastewater as a Basis for the Design of Communal Domestic Wastewater Installation of Kandang Kampong, Condongcatur Village, Yogyakarta Evaluasi Air Buangan Domestik Sebagai Dasar Perancangan Rehabilitasi Instalasi Pengolahan Air Limbah (IPAL) Domestik Komunal Kampung Kandang, Desa Condongcatur, Yogyakarta Utami, Ayu Nugroho, Nandra Eko Febriyanti, Salam Via Anom, Thamzez Nuur Muhaimin, Ahmad Environmental Engineering domestic communal WWTP, evaluation of wastewater, WWTP rehabilitation Teknik Lingkungan evaluasi air buangan, IPAL domestik komunal, rehabilitasi IPAL As population increases, domestic wastewater generated will increase as well. Domestic wastewater needs to be treated properly so as not to pollute the recipient's water body. Kampung Kandang already has a communal domestic wastewater treatment plant (WWTP) to treat domestic wastewater generated by citizens. The problem from the citizens is that the WWTP needs to be rehabilitated because the amount of sludge floating in the first biological treatment tank and still has a disturbing odor. Alternative solution for this problem is by rehabilitating WWTPs so that their functions are more optimal. The purpose of this study was to evaluate domestic wastewater in Kampung Kandang. The methods used in evaluating the wastewater i.e. analysis of primary data, calculation of standard stream evaluation and calculation of removal percentage. Communal Domestic WWTP needs to remove COD, BOD, TSS, Ammonia, and Total Coliforms parameters of 97.7%, 98.9%, 42.7%, 95.6%, and 99.9%. WWTP has already removed the TSS and ammonia. BOD, COD, and total coliform should be reduced by WWTP as much for each parameter are 25, 9%, 35%, and 95, 83%. Wastewater evaluation data can be used as a basis for the design of rehabilitation to be carried out at the Communal Domestic WWTP in Kampung Kandang. Pertambahan penduduk yang meningkat, limbah cair domestik yang dihasilkan akan meningkat juga. Limbah cair domestik perlu diolah dengan baik agar tidak mencemari badan air penerimanya. Kampung Kandang sudah memiliki IPAL domestik komunal untuk mengolah limbah cair domestik yang dihasilkan oleh warganya. Kendala yang dirasakan warga sehingga IPAL ini perlu direhabilitasi adalah banyaknya lumpur mengapung pada bak biologis pertama dan masih tercium bau yang mengganggu. Keluhan warga tersebut bisa diatasi dengan merehabilitasi IPAL agar fungsinya lebih optimal. Tujuan dari penelitian ini adalah untuk mengevaluasi air limbah domestik di Kampung Kandang. Metode yang digunakan dalam mengevaluasi antara lain analisis data primer, perhitungan evaluasi standar stream dan perhitungan persen penyisihan. IPAL Domestik Komunal Kampung Kandang perlu menyisihkan parameter COD, BOD, TSS, Amonia, dan Total Koliform sebesar 97,7%, 98,9%, 42,7%, 95,6%, dan 99,9%. IPAL tersebut sudah mampu menyisihkan TSS dan Amonia. Sedangkan BOD, COD, dan Total Koliform masih perlu disisihkan sebanyak masing-masing 25,9%, 35%, dan 95,83%. Data evaluasi air buangan dapat digunakan sebagai dasar perancangan rehabilitasi yang akan dilakukan pada IPAL Domestik Komunal di Kampung Kandang. Universitas Diponegoro 2019-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26002 10.14710/presipitasi.v16i3.172-179 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 172-179 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 3 (2019): November 2019; 172-179 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/26002/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/26002/4170 Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/62953 2025-12-04T00:06:42Z presipitasi:RCS

The Relationship Between Food Waste Management and Fly Density Level at Padang Restaurants in Tembalang District, Semarang City Paramitha, Sekar Sandya Sulistiyani, Sulistiyani Dewanti, Nikie Astorina Yunita Suhartono, Suhartono Kesehatan Lingkungan Fly density; food waste; restaurant; vector; waste management. Padang restaurants have become one of the favorite places for residents of Tembalang District because of the distinctive taste of the food they serve. However, many Padang restaurants have not managed their waste properly. This study aimed to determine the relationship between waste management and fly density levels at Padang restaurants in the Tembalang District. This was an analytical study with a cross-sectional design. The study was conducted from October to December 2023. The research sample consisted of 45 Padang restaurants selected using total sampling technique. The results show that most food waste comes from customer plate waste (60%) with rice being the most wasted food type (37.8%). The majority of restaurants have a relatively poor waste sorting category (68.9%) but mostly the waste containers meets the requirements (75.6%). Fly density levels in Padang restaurants mostly are still categorized as high (53.5%). Waste containers is associated with fly density levels (p=0.030), while waste sorting is not associated with fly density levels (p=0.057). It could be concluded that waste containers without lids with insufficient capacity are associated with fly density levels at Padang restaurants in Tembalang District. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62953 10.14710/presipitasi.v22i2.464-475 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 464-475 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 464-475 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62953/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/56452 2025-05-18T20:36:13Z presipitasi:RCS

Local Ecological Knowledge of Liberoid Coffee Farmers in Banyuwangi: an Ancestral Legacy in Preserving the Natural Environment Faronny, Danniary Ismail Rahma, Melati Julia Sunarharum, Wenny Bekti Hakim, Luchman Ilmu Lingkungan; Pengelolaan Sumberdaya Lingkungan; Pembangunan Agroforestry, community-based agriculture, liberica coffee, local ecological knowledge This study investigates the integration of Local Ecological Knowledge (LEK) in the sustainable development of Banyuwangi Liberica coffee, focusing on coffee farmers' ancestral heritage and local knowledge systems. Practices in land management, cultivation techniques, pest control, and pruning waste utilization are examined. Through qualitative data analysis from interviews and field observations, the research highlights the depth and significance of LEK in maintaining environmental sustainability and cultural heritage. Liberica coffee farmers possess a wealth of inherited LEK, encompassing ecological dynamics, sustainable agriculture, and natural resource conservation. Farmers integrate this knowledge into decision-making, evaluating innovations through research trials. Adopting appropriate practices preserves local ecosystems and maintains Liberica coffee's authenticity. The study underscores LEK's crucial role in land management and cultivation, with seedlings and repurposing waste for soil fertility. Pruning and using shade plant branches optimize fruit production and microclimate regulation. Natural pest control minimizes chemical pesticide use, preserving the coffee ecosystem's delicate balance and supporting biodiversity. Integrating LEK not only fosters environmental sustainability but also strengthens the community's social and cultural fabric. Coffee farmers' ancestral heritage and deep connection with the land contribute to the resilience of local agricultural practices, promoting the well-being of both farmers and the ecosystem. Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56452 10.14710/presipitasi.v21i1.249-263 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 249-263 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 249-263 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56452/xml Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/31110 2020-12-16T21:04:21Z presipitasi:RSA

Analisis Komposisi Tumbuhan di Kawasan Sabuk Hijau Waduk Palasari Analysis of Plant Composition in the Green Belt Area of Palasari Reservoir Wedayani, Ni Made Vipriyanti, Nyoman Utari Widnyana, I Ketut Ilmu Lingkungan; Pengelolaan Lingkungan konservasi, sabuk hijau, vegetasi, waduk Environmental Science, Environmental Management conservation; green belt; reservoirs; vegetation Waduk Palasari merupakan waduk terbesar di Pulau Bali yang berfungsi sebagai penyedia air untuk memenuhi kebutuhan hidup masyarakat sekitar. Kondisi waduk yang berbatasan langsung dengan Hutan Palasari, menjadikan kawasan vegetasi sekitar waduk berperan penting dalam menjaga cadangan air tanah dan mengurangi laju erosi di area bantaran waduk. Penelitian ini bertujuan untuk menganalisis struktur vegetasi dan keragaman serta upaya konservasi di kawasan sabuk hijau Waduk Palasari. Metode yang dipergunakan adalah indeks kerapatan, indeks Shannon-Wienner, indeks Simpson serta indeks nilai penting (INP) untuk mengetahui kedudukan ekologis tanaman dalam suatu komunitas. Hasil penelitian menunjukkan bahwa, tanaman yang memiliki peran dalam komunitas sabuk hijau Waduk Palasari diantaranya yaitu pisang, mahoni dan spathodea, yang ditunjukkan oleh INP tertinggi berkisar 20,83%, 20,24% dan 19,80%. Ketiga jenis tanaman ini merupakan tanaman yang adaptif dan mampu mengurangi erosi. Adapun nilai keanekaragaman tanaman pada area penelitian tergolong sedang dengan dominasi keanekaragaman spesies di tingkat pohon. Upaya pelestarian sabuk hijau secara berkelanjutan perlu dilakukan dengan memperbanyak jumlah tanaman endemik di kawasan waduk seperti pulai dan bayur, hal ini perlu diupayakan guna mempertahankan identitas kawasan. Palasari Reservoir is the largest reservoir on the Bali island that serves as a water provider to meet the surrounding community's needs. The condition of the reservoir directly adjacent to the Palasari Forest makes the vegetation area around the reservoir play an essential role in maintaining groundwater reserves and reducing erosion in the reservoir area. This study aims to analyze the structure of vegetation and diversity and conservation efforts in the Palasari Reservoir green belt area. The method used is the density index, Shannon-Wiener index, the Simpson index, and the importance value index (INP) to determine plants' ecological position in a community. The results showed that the plants that had a role in the Palasari Reservoir green belt community included bananas, mahogany, and spathodea, which were demonstrated by the highest INP's ranging from 20.83%, 20.24%, and 19.80%. These three types of plants are adaptive and can reduce erosion. The value of plant diversity in the study area is moderate, with the dominance of species diversity at the tree level. Efforts to conserve green belts sustainably need to be done by increasing the number of endemic plants in reservoir areas such as pulai and bayur. Every element of society needs to watch out for it to maintain the regional identity. Universitas Diponegoro 2020-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/31110 10.14710/presipitasi.v17i2.177-184 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 177-184 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 177-184 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/31110/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/69971 2026-04-21T07:44:25Z presipitasi:RCS

Identification of Fe and Mn Heavy Metal in Stream Sedimentation at Putri Cempo Landfill Rachmawati, Siti Kusumaningrum, Lia Aulia, Ahmad Asfar Utomo, Alifia Namira Nabila, Iffah Kurniasari, Intan Dwi Aryanto, Anisa Eka Putri Nurlita, Siti Heavy metal; identification; iron; manganese; Putri Cempo Landfill The Putri Cempo landfill serves as the final disposal site for organic and inorganic waste. Waste from the landfill can dissolve and settle in river sediments, potentially accumulating heavy metals, such as iron (Fe) and manganese (Mn), which easily bind to organic matter. This study aims to determine the content of Iron (Fe) and Manganese (Mn) in rivers around the Putri Cempo landfill. The concentrations of Fe and Mn weres analyzed using atomic absorption spectrometry (AAS) according to SNI 6989.84:2019, with sediment sampling conducted in rivers around the Putri Cempo landfill. Sediment sampling in these rivers revealed Fe levels of 1519.414245 mg/L and Mn levels of 130.033 mg/L. The analysis indicated that Fe concentrations exceeded the established quality threshold, whereas Mn levels remained below it. Heavy metals like Fe and Mn negatively impact abiotic and biotic environments, including human health and agricultural productivity. Elevated heavy metal levels disrupt ecosystem balance and pose health risks, making their management crucial. Reducing heavy metals in river sediments near the landfill is essential. Remediation efforts using bioremediation and phytoremediation technologies can help mitigate these impacts. Ongoing efforts are necessary to control heavy metal contamination in river sediments, ensuring ecosystem stability and public health. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69971 10.14710/presipitasi.v23i1.233-243 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 233-243 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 233-243 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69971/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/48176 2023-01-04T02:30:50Z presipitasi:RCS

Tanjung Perak Port Solid Waste Composting using Black Soldier Fly Method Astuti, Ulvi Pri Setiani, Vivin Apriani, Mirna Dewi, Tanti Utami Sulistiyo, Nyoto Teknik Lingkungan Compost; angsana leaf; mackerel fish waste; black soldier fly larvae One of the supporting facilities for operational activities at the Tanjung Perak Port is the existence of adequate green open spaces. The type of plant that is widely planted is the Angsana tree. Since 2018, this port has had an innovation to reuse waste from trimming activities to become compost, but the results are not optimal because there is still a lot of compost in the form of whole leaves. In this research, the composting method will be tested using Black Soldier Fly larvae and local microorganisms from banana hump. Compost material in the form of the waste of Angsana leaves is mixed with the waste of mackerel fish which comes from processing activities of mackerel fish food. Variations were made with different feeding regimes for Black Soldier Fly larvae, namely 3 weekly, daily, and weekly with dose of local microorganism banana hump as much as 15 mL/kg. The results of composting showed that the variations of feeding regime have significant effect for compost quality. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48176 10.14710/presipitasi.v19i3.578-588 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 578-588 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 578-588 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/48176/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11017 2016-05-05T01:28:38Z presipitasi:RVA

STUDI POTENSI KERJASAMA PEMERINTAH DAN SWASTA DI DALAM PENGELOLAAN SAMPAH DI KOTA BATAM Wardhana, Irawan Wisnu Nasrullah, Nasrullah Environmental Engineering Solid waste management, public-private participation, feasibility test . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11017 10.14710/presipitasi.v5i2.90-98 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 90-98 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 90-98 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11017/8701

oai:ojs.ejournal.undip.ac.id:article/64312 2025-05-18T20:39:07Z presipitasi:RCS

Impact of Monitoring Land Use Changes to Anticipate Management of Erosion Rates in the Brantas Hulu Watershed Pratama, Alfyan Amar Suripin, Suripin Wulandari, Dyah Ari Marupa, Ivan Teknik Sipil; Pengelolaan Sumber Daya Air; Rekayasa Ilmu Lingkungan; Erosi Monitoring changes in land use; erosion rate in brantas river; erosion handling Land use change in river basins is an important issue for policymakers. In this case, it is essential to carry out comprehensive monitoring for decision-making. Land use monitoring must be carried out continuously so that changes that occur over a certain period can continue to be monitored. In this case, the Brantas Hulu watershed includes Batu City, Malang City, and Malang Regency. This river basin is considered critical due to massive land use changes. This condition directly encourages an increase in sedimentation rate in rivers and reservoirs. This research aims to obtain the results of monitoring land use changes and determine the handling of erosion rates by monitoring land use changes in the Brantas Hulu watershed. The method used to determine the spatial characteristics of soil erosion in the Upper Brantas watershed uses the Universal Soil Losses Equation (USLE) method. The research results show that erosion conditions in the Brantas Hulu watershed are dominated by class I/very light erosion hazards (36.43%). ), class II/light (22.35%), class V/very heavy (16.07%), class III/moderate (13.09%), and class IV/heavy (12.05%). The proposed control measures for erosion sites include structural and non-structural approaches. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64312 10.14710/presipitasi.v21i3.825-837 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 825-837 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 825-837 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64312/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/36490 2022-02-16T03:29:41Z presipitasi:RSA

Decontamination of Mercury from Mined Soil using Magnetite Functionalized Quaternary Ammonium Silica (Fe3O4/SAK) Ngatijo, Ngatijo Permatasari, Defia Indah Farid, Faizar Bemis, Restina Heriyanti, Heriyanti Basuki, Rahmat Wibowo, Yudha Gusti Rekayasa Ilmu Lingkungan mercury decontamination, former mining soil, magnetite functionalized quaternary ammonium silica. Artisanal small-scale gold mining (ASCGM) has caused mercury contamination. However, efforts to decontaminate mercury from the ex-mining soils are still rare. This study aims to synthesize quaternary ammonium silica functionalized magnetite (Fe3O4/SAK) as a low price, highly available, and quickly separated adsorbent for mercury decontamination from ex-mining soils samples. The synthesis of Fe3O4/SAK and the mercury decontamination process was carried out by the co-precipitation and batch type reactor procedure, respectively. The Fourier Transform-Infra Red (FT-IR) characterization of synthesized Fe3O4/SAK informed the appearance of siloxane, silanol, methyl, methylene, and Fe-O functional groups. Crystal analysis by X-Ray Diffraction (XRD) showed that the typical peaks of SiO2 and Fe3O4 were emerged at 2θ 22.8˚ and 35.52˚, respectively. Morphological studies and elemental analysis using Scanning Electron Microscopy-Energy Dispersive X-Ray (SEM-EDX) indicated the successful functionalization Fe3O4 by SAK in the transformation of surface morphology and composition of the main elements, namely C, O, Si, and Fe. The results of characterization using Surface Area Analyzer (SAA) showed that the surface area and pore diameters were 224.98 m2/g and 36.149-38.70 Å, respectively. The optimum results for adsorbing Hg22+ metal ions were obtained at pH 4.0, and the adsorbent mass was 0.1 g. The Fe3O4/SAK has been proven to be an easily separable adsorbent after the mercury decontamination process in ex-mining soil samples with an adsorption efficiency of 43.36% (0.722 mg/g). Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36490 10.14710/presipitasi.v18i1.88-98 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 88-98 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 88-98 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/36490/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/4924 2013-05-14T23:09:33Z presipitasi:RVA

POTENSI NITRIFIKASI OLEH BAKTERI YANG TERDAPAT DI LAUT ALIRAN KALI PLUMBON, LAUT ALIRAN KALI BANJIR KANAL BARAT DAN LAUT ALIRAN KALI BANJIR KANAL TIMUR Utomo, Sudarno Nurlita, Harsanti Environmental Engineering, Environment ammonium, nitrit, nitrat, Laut Aliran Kali Plumbon, Kali Banjir Kanal Barat, Kali Banjir Kanal Timur Penelitian ini dilakukan untuk mengetahui perbedaan kandungan nitrat, nitrit dan ammonium dalam penentuan kandungan nitrogen air pada hilir laut daerah permukiman, industri dan tambak. Hipotesis dinyatakan bahwa lokasi yang berbeda memiliki karakteristik air yang juga berbeda. Metode analisis dilakukan dengan uji amonium, nitrit dan nitrat sesuai Standard Methods. Hasil yang didapatkan dalam penelitian ini Laut Aliran Kali Plumbon, Kali Banjir Kanal Barat dan Kali Banjir Kanal Timur memiliki potensi nitrifikasi, serta memliki bakteri yang mampu beradaptasi pada air yang memiliki salinitas dan mendegradasi amonium menjadi nitrit dengan baik. Universitas Diponegoro 2011-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4924 10.14710/presipitasi.v8i1.1-7 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 8, No 1 (2011): Vol 8, No 1 (2011); 1-7 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 8, No 1 (2011): Vol 8, No 1 (2011); 1-7 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/4924/4461

oai:ojs.ejournal.undip.ac.id:article/51442 2023-04-08T21:36:46Z presipitasi:RCS

Analysis of Weight, Composition, Density, and Recycling Potential of Floating Marine Debris in Pasie Nan Tigo Area, Padang City Aziz, Rizki Primasari, Budhi Edriani, Cici Amelia Environmental Engineering, Environmental Science Composition; density; floating marine debris; pasie nan tigo area; recycling potential weight Floating marine debris is a solid materials that is produced and disposed of in the marine environment. This study aimed to analyze the weight, composition, density, and recycling of potential marine debris. The samples were taken at three locations on rainy and non-rainy days. Location was selected based on trawl activities, estuary, and public activities. The method of sampling was using trawl. The weight on rainy days was 1.2 to 2.2 g/m2, while on non-rainy days was 1.6 to 2.7 g/m2. Total weight 689.2 kg non rainy conditions  and on rainy conditions 895.4 kg. There were four types of waste obtained, which were plastic, wood, fiber, and rubber. The highest percentage in the composition was plastic, which was 48 to 61%. The density of waste on non-rainy days was 0.1 -1.3 g/m2 and on rainy days conditions range 0.2 - 1.7 g/m2. The highest density of waste was plastic of 1.6 g/m2. The recycling potential of plastic, wood, and fabric was 100% respectively. The recycling potential of plastic, wood, and fabric was 100% respectively. The recommendation for floating marine debris is 3R + 1P (recycling, reuse, recovery, and participant). Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51442 10.14710/presipitasi.v20i1.208-218 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 208-218 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 208-218 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/51442/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/17633 2020-04-17T11:35:44Z presipitasi:RSA

Studi Komparasi Kelayakan Teknis dan Lingkungan Pemanfaatan Limbah B3 Sandblasting terhadap Limbah B3 Sandblasting dan Fly Ash sebagai Campuran Beton Dermawan, Denny Ashari, Mochammad Luqman Teknik Lingkungan Environmental Engineering Fly ash and sandblasting slag widely used as concrete’s builder because it contains quite high silica (SiO2) approximately 58,20% and 98,97%. Fly ash and sandblasting slag can increase concrete power pressure and contains characteristic like cement. Method of concrete making and technical feasibility test on this research use SNI standar (SNI 03-2834-2000). Environmental feasibility test use Toxicity Characteristic Leaching Procedur (TCLP) according PP No. 101 tahun 2014. The results of this research show that the use of  sandblasting slag can increase concrete power pressure at age of immersion 28 days. Concrete power pressure with 5%; 10%; 15%; and 20% sandblasting slag are 16,32 MPa; 17,81 MPa; 18,89 MPa; and 15,24 MPa. The use of sandblasting slag and fly ash can increase concrete power pressure at age of immersion 28 days. Concrete power pressure with 5% sandblasting slag and 30% fly ash; 10% sandblasting and 25% fly ash, 15% sandblasting and 20% fly ash, and  20% sandblasting and 15% fly ash are 18,53 Mpa, 16,08 MPa, 17,20 Mpa, and 15,91 MPa.  Based on the TCLP test, the concentration of heavy metal substances in 10% SBE are below the standard. Thus, it is  scientifically proven to conclude that concrete with 10% and 15% sandblasting slag and 5% sandblasting slag and 30% fly ash; 15% sandblasting and 20% fly ash are technically proper and safe for the environment. Universitas Diponegoro Ristek Dikti, Politeknik Perkapalan Negeri Surabaya 2018-03-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/17633 10.14710/presipitasi.v15i1.25-30 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 25-30 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 15, No 1 (2018): Maret 2018; 25-30 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/17633/pdf Copyright (c) 2018 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/67087 2025-12-04T00:06:38Z presipitasi:RCS

Infiltration Well Design for Environmental Conservation: Assessing Watershed and Groundwater Depth in Denpasar City Pamungkas, Tri Hayatining Yekti, Mawiti Infantri Ardana, Putu Doddy Heka Warsana, Kadek Budhi Kembarajaya, I Ketut Infiltration wells; floods; watershed; groundwater depth; lithology; geographic information systems. Urbanization and climate change are expected to exacerbate and introduce uncertainty in future flood characteristics. The city of Denpasar often experiences flooding due to rapid population growth and changes in land use. One form of flood mitigation that can be implemented is infiltration wells. This research aims to design infiltration wells as an environmental conservation effort by evaluating the characteristics of the watershed and the depth of groundwater. This research will also examine lithological aspects and use geographic information systems (GIS) to increase effectiveness in planning. The research results show that the construction of infiltration wells at the research location is effective in reducing flood volume, with reductions varying between 19.86% in South Denpasar and 59.58% in North Denpasar, East Denpasar and West Denpasar. Infiltration wells not only reduce the risk of flooding but also play an important role in preserving the environment according to the Tri Hita Karana concept. By integrating these sustainable practices into spatial planning, water resource management can be enhanced, fostering a healthy environment for future generations. Universitas Diponegoro 2025-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67087 10.14710/presipitasi.v22i1.168-182 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 168-182 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 1 (2025): March 2025; 168-182 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/67087/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/41986 2022-02-19T00:21:43Z presipitasi:RSA

Optimization of Enzymatic Bioremediation of Oil Contaminated Soil by Laccase from Marasmiellus palmovorus using Response Surface Methodology Effendi, Agus Jatnika Suhardi, Sri Harjati Arun Surya Widi, Yollanda Chekti Kirana Hasan, Khomaini Awfa, Dion Saputra, Rendana Teknik Lingkungan; BIoteknologi Lingkungan; Bioremediation Laccase, Enzyme, Total Petroleum Hydrocarbon, Bioremediation Crude oil contamination is considered highly toxic and poses a significant environmental problem. As an alternative, the laccase enzyme showed high performance for removing various toxic contaminants, particularly oil-contaminated soil (i.e., total petroleum hydrocarbon). However, previous studies mainly tested the performance of laccase under irrelevant environmental conditions (i.e., artificially contaminated soil) with a limited number of soil samples, which can lead to bias optimization results for assessing laccase performance. Two types of natural oil-contaminated soils were tested under various reaction times and various concentrations of laccase extracted from Marasmiellus palmovorus. In addition, response surface methodology was used to find the maximum degradation of total petroleum hydrocarbon (TPH). The maximum degradation of TPH from soil A and soil B were 48.57% and 54.1%, respectively. Moreover, the performance of the laccase enzyme for oil recovery was also tested, with the percentage of oil recovery being 9.89% and 10.1 % for soil A and soil B, respectively. SARA fraction analysis indicated that laccase enzyme preferentially degraded highly polar SARA fraction (i.e., asphaltene and resin). In general, the application of laccase for the enzymatic remediation of oil-contaminated soils was practical. Hence, the use of laccase for environmental application is still promising. Universitas Diponegoro 2021-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/41986 10.14710/presipitasi.v18i3.453-463 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 453-463 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 3 (2021): November 2021; 453-463 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/41986/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10945 2016-05-03T20:12:24Z presipitasi:RVA

ANALISIS KINERJA PENGOLAHAN AIR LIMBAH PAVILYUN KARTIKA RSPAD GATOT SOEBROTO JAKARTA Sumiyati, Sri Imaniar, Imaniar Environmental Engineering hospital, wastewater, treatment plant, extended aeration Hospitals  produce  solid  waste  and  also  wastewater,  hazardous  and  non-hazardous.  Pavilyun Kartika as a part of RSPAD Gatot Soebroto, produces wastewater that has characteristic like a domestic wastewater. The hazardous waste that produced by Pavilyun Kartika were managed by RSPAD Gatot Soebroto. In Pavilyun Kartika, wastewater with flows 52 m3/days comes from bathrooms  for  patients, laundry,  public  bathrooms,  and  also  kitchen.  Wastewater  of  Pavilyun Kartika contains high BOD, COD, and also Ammoniac, though still in save numbers, because still  under  the  standard  regulation  for wastewater  in  Jakarta.  Wastewater  treatment  plant  in Pavilyun Kartika use extended aeration method, as part of  biological treatment. The principal of the treatment are aeration, sedimentation, and chlorination. Universitas Diponegoro 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10945 10.14710/presipitasi.v2i1.39-42 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 39-42 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 2, No 1 (2007): Vol 2, No 1 (2007); 39-42 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10945/8636

oai:ojs.ejournal.undip.ac.id:article/56494 2024-06-14T22:00:52Z presipitasi:RCS

Exploring the Potential of Solar Energy in Mosque Buildings: A Case Study of Dumai Islamic Centre Mosque in Riau Province, Indonesia Putri, Nia Armelia Rahman, Ari Suryawan, I Wayan Koko Solar panels; carbon emissions; renewable energy; mosque; dumai city; riau province This study investigated the implementation of solar panels in the Dumai Islamic Centre (DIC) Mosque, located in Dumai City, Riau Province, to reduce carbon emissions. The study presents an overview of the significance of solar energy utilization and its potential benefits in the context of mosque buildings. This research was aimed to assess the criteria for selecting the appropriate solar panel type, determine the power output and PV area required for the DIC Mosque, and estimate the carbon emissions reduction resulting from installing solar panels. The study employed a quantitative research design and utilizes the Analytic Hierarchy Process (AHP) to select the most suitable solar panel type. The results reveal that polycrystalline solar panels are the optimal choice based on efficiency, power peak, operation and maintenance, and price criteria. Installing solar panels on the DIC Mosque's roof, positioned at an optimal height, ensures maximum sunlight exposure and energy generation efficiency. Calculations demonstrate a significant reduction in carbon emissions post-installation. The carbon emissions reduction potential is estimated at 57.693 kg CO2 eq per day or 21,057.95 tons CO2 eq per year. This highlights the positive environmental impact of solar energy implementation in the DIC Mosque. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56494 10.14710/presipitasi.v20i3.621-632 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 621-632 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 621-632 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/56494/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/24011 2020-04-17T11:38:44Z presipitasi:RSA

Indeks Pencemaran Lingkungan Secara Fisika-Kimia dan Biokonsentrasi Timbal (Pb) pada Kerang Hijau di Perairan Pesisir Semarang Utara Khusnia, Arsika Zuhrotul Astorina, Nikke Rahardjo, Mursid Kesehatan Lingkungan;Lingkungan pollution index; coastal ocean; lead (Pb); bioconcentration; green mussels The North Semarang ocean are functioned for high activity area also utilization in one site. The entry of waste into the waters or oceans caused the decrease of water quality.  Lead (Pb) entered to North Semarang oceans by kind of activities there. The aims of this researc are to describe pollution index and bioconcentration in the study location. This reasearch is descriptive observational with cross sectional study. Sampling location determined beside on zoonation.Twenty four (24) samples were determined purposively besed on location, wind direction and current type. The samples was measured in situ and laboratory test. The average of pH was 8,05 , temperature was  31,38°C, salinity was 28,4 ppt, DO was 4,07 mg/L and lead (Pb) was 0,99 mg/L. The average of dissolved oxygen not in accordance with quality standards (>5 mg/l) also lead (Pb) average is higher than standard (0,008 mg/l). Calculation of pollutan index in North Semarang ocean categorized as moderate polluted and the lead (Pb) bioconcentration on Perna viridis categorized as low accumulative with the value of BCF was 0,62 L/kg (BCF<100). All of samples classified as moderate polluted which caused bioconcentration and low bioacumulation on Perna viridis so that it is harmful for human health. Universitas Diponegoro 2019-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24011 10.14710/presipitasi.v16i2.83-90 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 83-90 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 2 (2019): Juli 2019; 83-90 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/24011/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/63645 2025-12-04T00:06:42Z presipitasi:RCS

Noise Evaluation of the Finalization Phase Construction Project of X Hospital Rahman, Ari Susanto, Harits Bimo Qonitan, Fatimah Dinan Aryani, Eri Teknik Lingkungan; Manajemen Lingkungan; Kesehatan dan Keselamatan Kerja Construction project; noise levels; noise reduction ratio; noise source; sound level meter This research aimed to identify and assess the noise levels at a construction project within X Hospital's B2nd, 5th, 8th, and 9th floors. The study employed a sound level meter according to the Indonesian National Standard (SNI) 7231:2009 to measure noise intensity in the workplace. The primary sources of high noise levels were jackhammers, hammers, portable ventilators, iron-cutting machines, and pipe-cutting tools, with corresponding readings of 148, 114, 95.4, 85, and 85 dB, respectively. To mitigate the potential risks of excessive noise, recommendations were made based on the risk control hierarchy outlined in the Occupational Health and Safety Assessment Series (OHSAS) 18001:2007 for Occupational Health and Safety Management Systems, including equipment substitution, administrative controls, and the use of appropriate personal protective equipment (PPE), such as earplugs. The effectiveness of earplugs, with a noise reduction ratio (NRR) of 30 dB, was highlighted for reducing noise levels below the threshold limit value (TLV) and ensuring worker safety. Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63645 10.14710/presipitasi.v22i2.588-599 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 588-599 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 588-599 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/63645/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/47087 2023-03-29T21:11:54Z presipitasi:RVA

Constructed Wetlands for Treatment of Acid Mine Drainage: A Review Wibowo, Yudha Gusti Wijaya, Candra Halomoan, Petrus Yudhoyono, Aryo Safri, Muhammad Ilmu Lingkungan wetlands; constructed wetlands; acid mine drainage; heavy metals; mining industry The coal mining industry is an industrial activity that impacts the environment. This activity will generate acid mine drainage due to the interaction of water, air and sulfide minerals. Acid mine drainage is wastewater with low pH and heavy metals content. These conditions will be given some negatives impact on the environment and human health. The low-cost, applicable and simple method to solve acid mine drainage in mining areas is constructed wetlands. Hence, this paper aims to describe the potential of wetlands as a low-cost and applicable method for acid mine drainage treatment. This paper also describes the holistic information about an overview of constructed wetlands, acid mine drainage (AMD) production and their negative impacts, recent trends in constructed wetlands, recommendation components of wetlands, potential application in rural areas and future considerations Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47087 10.14710/presipitasi.v19i2.436-450 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 436-450 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 436-450 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47087/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10976 2016-05-05T04:32:12Z presipitasi:RVA

PENURUNAN KONSENTRASI LOGAM BERAT CU DAN AG PADA LIMBAH CAIR INDUSTRI PERAK RUMAH TANGGA DENGAN METODE ELEKTROKOAGULASI Hadiwododo, Mochtar Environmental Engineering Electro coagulation, Cu, Ag, Daerah Istimewa Yogyakarta, silver home industry . Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10976 10.14710/presipitasi.v4i1.75-79 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 75-79 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 75-79 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10976/8667

oai:ojs.ejournal.undip.ac.id:article/29298 2020-12-16T21:04:21Z presipitasi:RSA

Evaluasi Efisiensi Kinerja Alat Pengendali Partikulat Cyclone dan Wet Scrubber Unit Paper Mill 7/8 PT. Pura Nusapersada Kudus Performance Evaluation of Cyclone Particulate Controller and Wet Scrubber Unit in Paper Mill 7/8 PT. Pura Nusapersada Kudus Rahmawati, Fauziyah Samadikun, Budi Prasetyo Hadiwidodo, Mochtar Teknik Lingkungan Pengendalian pencemaran udara; cyclone; wet scrubber; industri kertas daur ulang Environmental Engineering Air pollution control, cyclone, wet scrubber, recycled paper industry Kebutuhan yang semakin meningkat sejalan dengan tingginya permintaan pasar terhadap suatu produk. Salah satu produk yang banyak digunakan yaitu kertas. Salah satu industri kertas daur ulang adalah PT. Pura Nusapersada Unit Paper Mill 7/8 dimana proses produksinya menggunakan uap air dari boiler yang berbahan bakar batubara. Proses tersebut berpotensi menghasilkan ash yang dapat mencemari udara sehingga diperlukan alat pengendali pencemar udara seperti cyclone dan wet scrubber. Diperlukan evaluasi terhadap efisiensi cyclone dan wet scrubber dengan mengetahui spesifikasi dan prinsip kerja alat, emisi yang dihasilkan, efisiensi alat, faktor yang mempengaruhi, permasalahan, operasi, dan pemeliharaannya. Metode yang digunakan yaitu pengamatan secara langsung, wawancara, data berupa dokumen, referensi, dan laporan rutin. Cyclone yang digunakan berjenis multicyclone dan wet scrubber berjenis venturi scrubber. Dari perhitungan yang telah dilakukan, didapatkan efisiensi Boiler Hitachi 94,195% dan Boiler Hamada II 96,844%. Boiler tersebut menghasilkan emisi yang telah memenuhi baku mutu Peraturan Menteri Lingkungan Hidup Nomor 07 Tahun 2007. Perhitungan efisiensi sebaiknya setahun sekali agar kualitas alat terpantau dan tidak mencemari kualitas udara di sekitarnya. The need is increasing in line with the high market demand for a product. One product that is widely used is paper. One of the recycled paper industries is PT. Pura Nusapersada Unit Paper Mill 7/8, where the production process uses water vapor from a coal-fired boiler. This process can produce ash that can pollute the air so that air pollutant control devices such as cyclones and wet scrubbers are needed. It is necessary to evaluate the efficiency of the cyclone and wet scrubber by knowing the specifications and working principles of the tool, the emissions produced, the effectiveness of the equipment, the factors that influence, problems, operation, and maintenance. The method used is direct observation, interviews, data in the form of documents, references, and routine reports. The cyclone used is a multi-cyclone type, and the wet scrubber is a venturi scrubber type. From the calculations that have been done, the efficiency of the Hitachi Boiler is 94.195%, and the Hamada II Boiler is 96.844%. The boiler produces emissions that meet quality standards for the Minister of Environment Regulation No. 07/2007. The efficiency calculation should be done once a year so that the quality of the equipment is monitored and does not pollute the surrounding air quality. Universitas Diponegoro 2020-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29298 10.14710/presipitasi.v17i2.144-153 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 144-153 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 2 (2020): Juli 2020; 144-153 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/29298/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/72456 2025-12-13T04:17:17Z presipitasi:RCS

Integrating Mining Management Strategy with Mining Area Sustainability Index Majid, Riza Nur Fajrin Munibah, Khursatul Suryaningtyas, Dyah Tjahyandari Latifa, Nisa Regional Planning Science Central Bangka; mining activities; mining management strategy; sustainability index Mining in Central Bangka Regency has continued to grow since the era of regional autonomy, with the dominance of alluvial tin mining which has a major impact on the environment. The rise of unconventional mining has exacerbated land degradation, increased the area of critical environments, and reduced the quality of ecosystems. This study aims to assess the value of sustainability based on the Mining Area Sustainability Index as a basis for formulating development policies.  The results show that mining activities cause a reduction in forest cover and an increase in the level of environmental criticality, especially due to unconventional mining which is difficult to control. The community has a positive perception of mining activities. The results showed a sustainability score in the less sustainable category (42.55), with the environmental aspect as the lowest aspect. To improve the sustainability score, a moderate policy scenario was chosen as the best strategy, focusing on managing environmental impacts, utilizing ex-mining land, and improving community health and safety. With the right policy approach and synergy between stakeholders, the sustainability of the mining sector in Central Bangka Regency can be achieved. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/72456 10.14710/presipitasi.v22i3.837-851 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 837-851 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 837-851 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/72456/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/47177 2023-01-04T02:30:50Z presipitasi:RSA

Study of Rhizosphere Bacteria on the Coast of Mempawah Mangrove as Bioremediation Agents Sulastri, Aini Jumiati, Jumiati Nugraheni, Putranty Widha Putra, Leonardus Sandy Ade Kusumawardhani, Eka Teknik Lingkungan; Mikrobiologi; Konservasi; Bioremediasi Mangrove vegetation; mangrove bacteria; bioremediation; mangrove potential The production and accumulation of organic matter in the mangrove ecosystem allow this area to be rich in microbes and potentially develop as a source of various extracellular enzymes. This research aims to create effective microorganisms as bioremediation agents and determine the composition of the types of bacteria found in mangrove areas, sediments, leaf litter, stems, and mangrove plants. Sediment and vegetation were obtained as samples for being diluted and isolated, then spread onto media to get a single pure colony using Zobell 2216 method. The virgin territory formed is distinguished by characterization using macroscopic observations. It was found that the composition of bacteria isolated from the mangrove area contained 59 isolates with various visible characteristics consisting of 20 isolates of sedimentary bacteria, 27 isolates of bacteria on stems, and 12 isolates of bacteria derived from mangrove leaves. Bacterial isolates S08, B27, and D04 have the potential for the bioremediation of Hg metal. Bacterial isolates S58, B35, and D13 have potential for Pb bioremediation, while bacterial isolates S27, B35, and D12 have potential as Fe bioremediation agents. Universitas Diponegoro 2022-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47177 10.14710/presipitasi.v19i3.464-476 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 464-476 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 3 (2022): November 2022; 464-476 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/47177/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/11008 2016-05-05T01:28:38Z presipitasi:RVA

PENGOLAHAN LIMBAH CAIR DAN LIMBAH BETALAKTAM PT. PHAPROS, TBK, SEMARANG Sumiyati, Sri Prabarani, Fitri Environmental Engineering Pharmatical industry, wastewater, treatment plant, betalactam . Universitas Diponegoro 2008-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11008 10.14710/presipitasi.v5i2.22-30 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 22-30 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 5, No 2 (2008): Vol 5, No 2 (2008); 22-30 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/11008/8692

oai:ojs.ejournal.undip.ac.id:article/62824 2025-05-18T20:37:10Z presipitasi:RCS

Life Cycle Assessment in Crude Palm Oil Production: Optimization of Oil Extraction Rate Zen, Muhammad Rizky Putra, Agus Adi Mujahidah, Uswatun Napitupulu, Michelle Maria Magdalena Noviarini, Chairunnisa Rahman, Muhammad Miftahur Teknik Lingkungan; Ilmu Lingkungan; Teknik Kimia Crude palm oil; environmental performance; life cycle assessment; oil extraction rate; sustainability improvement Indonesia, as the foremost producer of palm oil globally, faces crucial environmental challenges. Besides palm oil production plays an important role in economic growth and national development, it also has environmental consequences from the production process. Crude Palm Oil (CPO) Industries face challenges balancing economic growth and environmental sustainability. This research carries out an environmental impact analysis of CPO production with the Life Cycle Assessment method using openLCA software 2.03 with CML-IA Baseline and ReCiPe 2016 Midpoint (H). Scope of this research adopts cradle-to-gate analysis with declaration unit of 1 kg CPO product. In this analysis, it was found that CPO production had a significant impact on GWP, Terrestrial Eco-toxicity Potential, and Land Use Change. So this research also explores the environmental impact of increased Oil Extraction Rate (OER) scenario with an OER of 21% and 22% compared to OER in current production activities. The research showed that all impacts decreased when OER was increased, impacts decreased of around 3% at OER 21% and decreased of around 8% at OER 22%. These findings confirm the potential feasibility of implementation based on increasing OER in the Palm Oil Industry to achieve targets for sustainable improvement.  Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62824 10.14710/presipitasi.v21i2.513-526 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 513-526 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 513-526 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62824/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/34248 2022-02-16T03:29:41Z presipitasi:RSA

Distribution of Microplastic at Sediment on Balikpapan Coastal Area Wulandari, Marita Prasaningtyas, Asri Ma'arij Harfadli, Muhammad Handayani, Anggi Melinda Teknik Lingkungan; Rekayasa Ilmu Lingkungan microplastics, sediment, Balikpapan coastal Coastal areas are often in the spotlight related to environmental problems, such as plastic waste. Coastal and coastal areas often face complex problems related to plastic waste, including microplastics. Microplastics (MPs) are tiny pieces of plastic that are as small as ≤ 5 mm and possibly pollute the environment. The study aimed to identify the presence and abundance of microplastics contaminating the coastal areas of Balikpapan City. Sediment samples were taken at a depth 0-10 cm. The observations were carried out in several stages; those stages are the drying stage, volume reduction, density separation, and counting using a microscope. The microplastic observation results with the microscope showed four types: fragment-shaped microplastics, phylum-shaped microplastics, fiber microplastics, and microbead-shaped microplastics. The highest number of microplastic particles was found at the Kampung Atas Air point, about 201 particles / 100 grams of dry sediment and the least number of microplastic particles were found at the Monpera point, about 16 particles / 100 grams of dry sediment. Microplastics with fiber form dominated all the study areas. Environmental conditions and pollutant sources influence the difference in the number of microplastics Universitas Diponegoro 2021-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34248 10.14710/presipitasi.v18i1.153-160 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 153-160 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 1 (2021): March 2021; 153-160 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/34248/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/79518 2026-03-31T23:27:43Z presipitasi:RSA

State of The Art Evolution of Adsorption Wastewater From Crude Palm Oil Industries Mirnandaulia, Meutia Fitri, Li Idi'il Mustakim, Mustakim Khairul, Muhammad Fadli Teknik Lingkungan; Agribisnis Kelapa Sawit Adsorption; CPO, environmental remediation, POME, wastewater treatment Wastewater from crude palm oil production is among the most concentrated agro-industrial effluents, marked by very high organic loads, suspended solids, and variable composition. Conventional treatments often struggle to consistently remove recalcitrant pollutants such as phenolics, color compounds, and emulsified oil. As a result, adsorption has gained global attention as a versatile and efficient alternative. This review summarizes recent advances in adsorption technologies for crude palm oil wastewater treatment. It highlights progress in adsorbent development, including biochar, mineral composites, layered double hydroxides, magnetic hybrids, and other engineered materials. Key removal mechanisms for organics, nutrients, and colloids are examined alongside insights from kinetic, isotherm, and thermodynamic studies. The integration of adsorption with biological, membrane, and oxidation processes is also discussed, demonstrating improved removal efficiency and effluent stability. Major challenges remain, particularly in mechanical stability, regeneration, competitive adsorption, and large-scale validation. Future research should prioritize process intensification, sustainable regeneration methods, circular-economy-based adsorbent production, and life-cycle assessment. Overall, adsorption represents a promising pathway toward more sustainable and reliable crude palm oil wastewater management Universitas Diponegoro 2026-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79518 10.14710/presipitasi.v0i0.%p Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Article in Press 2026 (For Upcoming Issue) Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Article in Press 2026 (For Upcoming Issue) 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/79518/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/71501 2025-12-13T04:17:17Z presipitasi:RSA

Cellulose Hydrolysis of Mask Waste Using Aspergillus niger and Eco-Friendly Microwave Pretreatment Gilbran, Adam Nafilah, Syahraini Layalia, Afina Rista Arsyad, Wifqul Muna Darmawan, Andi Setiawan, Risqi Prastianto Irviandi, Risnu Kusdiyantini, Endang Nurauliyaa, Aida Habibah Anda, Martin Sasongko, Nugroho Adi Wahyono, Yoyon Teknik Lingkungan Aspergillus niger; hydrolysis; mask waste The management of used medical mask waste has become a significant issue due to the increased volume of waste during and after the pandemic. Medical mask waste contains cellulose compounds that can be converted into derivatives such as glucose, which are then processed into bioethanol as an alternative energy source. This study aims to hydrolyse medical mask waste using cellulase enzymes from Aspergillus Niger to produce glucose. The cellulase enzyme composition was varied (5 ml, 15 ml, and 25 ml) to determine the optimal hydrolysis conditions. The glucose produced was measured using DNS reagent assay with spectrophotometry at a wavelength of 540 nm. The highest amount of glucose was obtained under optimal conditions with 25 ml of cellulase enzyme after 48 hours of hydrolysis, amounting to 88.16 ppm. Subsequently, the glucose from hydrolysis was fermented using Saccharomyces cerevisiae, and the fermentation product was analysed for ethanol concentration using GC-FID. The products of fermentation ware 0.017% ethanol concentration from mask waste fermentation. Hydrolysis is an environmentally friendly alternative solution for handling mask waste. Universitas Diponegoro 2025-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/71501 10.14710/presipitasi.v22i3.993-1001 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 993-1001 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 3 (2025): November 2025; 993-1001 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/71501/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/50335 2023-04-08T21:36:46Z presipitasi:RCS

Solid Waste Management System in Tanjungpura University: 3Rs concept integrated with the Waste Bank Ghandi, Arifin Susilowati, Dwi Sutrisno, Hendri Teknik Lingkungan Waste bank; waste management system; 3R-based waste processing site Tanjungpura University is one of the State Universities in West Kalimantan. Waste management in the Tanjungpura University area still applies the old waste management paradigm. Waste management in the Tanjungpura University area still applies the old paradigm of waste management, which has an impact on environmental problems, because waste management has not been handled optimally. Therefore, it is necessary to plan a waste management system with a new paradigm that integrates the 3R concept (Reuse, Reduce and recycle) with the Waste Bank. The research data were obtained through in-depth interviews and field sampling using the SNI-19-3964-1994 method for 8 days. The results of the study show that waste generation in 2035 will be 39,035 l/day. The projected results of waste generation and waste composition form the basis for waste management system planning. The waste management system includes sorting waste at the source, designing segregated containers, designing waste collection cars, processing organic and inorganic waste, and designing 3R-based Waste Processing Site which is integrated with the Waste Bank. This plan is expected to help develop Tanjungpura University with a Green Campus concept. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50335 10.14710/presipitasi.v20i1.104-113 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 104-113 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 104-113 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/50335/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/16089 2020-04-17T11:35:06Z presipitasi:RSA

Studi Efisiensi Penyisihan COD dalam Lindi dengan Sistem Evapotranspirasi Menggunakan Tumbuhan Sente (Alocasia macrorrhiza) dan Rumput Belulang (Eleusine indica) Zaman, Badrus Wardana, Irawan Wisnu Sutrisno, Endro Kurniawati, Adistia Dian Amalia, Amalia Teknik Lingkungan COD dalam lindi, sistem evapotranspirasi, Tumbuhan Sente (Alocasia macrorrhiza), Rumput Belulang (Eleusine indica) COD dalam lindi merupakan salah satu parameter yang secara umum berada pada konsentrasi yang tiggi sebagai salah satu hasil biodegradasi material organik dan anorganik dalam sampah di TPA. Sistem evapotranspirasi yang menggunakan tumbuhan lokal merupakan salah satu sistem yang menjanjikan. Penelitian dilakukan untuk mengetahui efisiensi penyisihan COD dalam lindi dengan reaktor evapotranspirasi secara kontinyu yang menggunakan tumbuhan Tumbuhan Sente (Alocasia macrorrhiza) dan Rumput Belulang (Eleusine indica). Hasil uji menunjukkan efisiensi pada semua reaktor mulai sekitar hari ke 3 hingga hari ke 25 mengalami fluktuasi yang cenderung menurun (dari ± 75% menjadi ± 50%), tetapi hari selanjutnya cenderung meningkat. Pola tersebut dipengaruhi oleh peran media tanam, bakteri dalam media tanam, bakteri pada akar tumbuhan dan aktivitas metabolisme tumbuhan uji. Secara keseluruhan reaktor yang menggunakan Tumbuhan Sente (Alocasia macrorrhiza) lebih fluktuatif dibandingkan denga menggunakan Rumput Belulang (Eleusine indica) yang dipengaruhi pola pertumbuhan dan perkembangannya. Universitas Diponegoro 2017-11-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16089 10.14710/presipitasi.v14i2.81-87 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 81-87 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 2 (2017): September 2017; 81-87 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/16089/pdf Copyright (c) 2017 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/64843 2025-05-18T20:39:07Z presipitasi:RSA

Technical Feasibility Analysis of Processing Food Waste into Organic Fertilizer with Black Soldier Fly Composting Method Astuti, Ulvi Pri Setiani, Vivin Putri, Anindya Taffana Hayati, Debby Zintya Fadilla, Laras Nur Aviantari, Maura Diza Setyawati, Emeralda Eka Putri : Food Waste; BSF composting; organic fertilizer; technical feasibility analysis; MoL Food waste is a major issue in Indonesia, accounting for 41.97% of waste generated. This untreated waste can lead to the production of greenhouse gases. However, food waste has the potential to be composted due to its high nutrient content. The purpose of this study was to analyze the technical feasibility of processing food waste using the Black Soldier Fly (BSF) composting method for organic fertilizer production. The study used variations of fish waste and reject milk as composting mixtures, with percentages of 100% food waste, 70% food waste and 30% cow manure, and 30% food waste and 70% fish waste. The dimensions of the BSF composting reactor were 56 cm x 43 cm x 20 cm. The research was conducted for 15 days with the addition of local microorganisms (MoL) to accelerate the degradation process. Various parameters such as pH, moisture content, C-Organic, nitrogen, phosphorus, and potassium were analyzed. The results showed that all variations met the required compost quality standards, it which was technically feasible to be used as organic fertilizer using the BSF composting method. The results of this study can improve the circular economy because compost and bsf larvae products have many benefits if traded. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64843 10.14710/presipitasi.v21i3.747-758 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 747-758 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 747-758 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/64843/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/39918 2022-02-16T03:26:18Z presipitasi:RSA

Re-layout of Temporary Storage Area for Toxic and Hazardous Waste using 5S (Seiri, Seiton, Seiso, Seiketsu, Sitsuke) Adelino, Muhammad Ilham Fitri, Meldia Sundari, Ayu Teknik Industri; Teknik Lingkungan Temporary Storage Area; Toxic and Hazardous Waste; 5S; Rubber industry One of the industries that produces toxic and hazardous waste is rubber industry. This study was conducted in PT. Famili Raya. The problem was toxic and hazardous waste placed in an irregular placement and no follow the government regulations for storing and managing. This aims of this study were to redesign temporary storage area for hazardous waste based on 5S (Seiri, Seiton, Seiso, Seiketsu, Shitsuke) and the regulation, Minister of Environment and Forestry No. 12/2020. The object of this study was temporary storage area for toxic and hazardous waste in PT. Famili Raya. The data used were current condition, actual dimensions of temporary storage area, dimensions of waste, input and output data, and dimensions of a forklift. The results obtained were the proposed layout using the 5S approach could be used to redesign the storage layout in the temporary storage area. Space utility could be reduced by 32,67%. The decrease in space utility did not reduce the maximum storage capacity for used batteries, used tubular lamp, used oil waste, and turpentine oil waste. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39918 10.14710/presipitasi.v18i2.358-366 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 358-366 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 358-366 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/39918/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10927 2016-05-21T15:44:06Z presipitasi:RVA

ANALISIS TEKNOLOGI PENGOLAHAN LIMBAH CAIR PADA INDUSTRI TEKSTIL (STUDI KASUS PT. ISKANDAR INDAH PRINTING TEXTILE SURAKARTA) Junaidi, Junaidi Limbah Cair waste water, waste water treatment plant, effluent, operation unit, process unit, PT Iskandar Indah Printing Textile Industrial  activities  which  grow  rapidly  caused  contamination  of  environment  generated  by throwing away industrial disposal. PT. IskandarIndah Printing Textile as one of the textile factory at Surakarta managed their waste water by processing it used waste water treatment plant, so that  fulfilled  quality standard.  Characteristic  waste  water  divided  to  become  physics characteristic, chemical, and biological. Unit processing of waste consist of unit operate and unit process.  Operation  unit  consist  of ekualisasi,  koagulasi,  flokulasi,  sedimentation,  and  aerasi. While for  the  unit  of  process  cover processing  of  biology  and  processing  of  chemistry.Waste water  treatment  plant  at  PT.  Iskandar Indah  Printing  Textille  Surakarta  consist  of  unit  of ekualisasi,  koagulasi,  flokulasi,  primary sedimentation,  netralisasi,  biological  basin,  secondary sedimentation, rapid sand filter, and sludge drying bed. Quality efluent of waste water treatment plant, measured to pass efluen sand  filter, because this unit represent last unit. Universitas Diponegoro 2006-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10927 10.14710/presipitasi.v1i1.1-6 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 1-6 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 1, No 1 (2006): Vol 1, No 1 (2006); 1-6 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10927/8628

oai:ojs.ejournal.undip.ac.id:article/53248 2024-06-14T22:00:52Z presipitasi:RSA

Comparison of Physical Properties and Strength of Geopolymer Mortar with White Soil Substitution and Mortar with Portland Pozzolan Cement under Corrosive Seawater Conditions Priastiwi, Yulita Arni Adi, Rudi Yuniarto Hidayat, Arif Hanif, Abi Nabil Bima, Bima Environmental engineering; Civil engineering; Environmental sciences Mortar geopolymer; portland pozzolan cement (PPC); corrosive Construction also causes environmental pollution due to excessive cement production, so an alternative to cement is needed. Geopolymer is considered an alternative material to replace cement. This research compares three variations of mortar (PPC, geopolymer, and geopolymer with white soil) in a seawater environment. Research in the laboratory with 5x5x5 cm mortar specimens and test parameters for porosity, compressive and direct tensile strength, density, and absorption has been carried out. Microstructure due to immersion effect was also carried out but only on MGT15 mortar. The results showed that the PPC mortar had the highest compressive and tensile strength among the three variations, namely 27.80 MPa and 2.540 MPa at 28 days of age, the most negligible porosity and absorption were 1.124% and 76 gram/100cm2, and increased density after immersion. However, when immersing for 56 days, the decrease in strength reached 21%, while geopolymer mortar tended to be stable and even increased to 19%. Microstructure tests in the form of SEM and EDX on MGT15 showed the effect of seawater immersion, such as the presence of cracks, ettringite, and bad reactions. Soaking in seawater caused a decrease in some mortar strength supporting compounds and the appearance of 0.3% free chloride at 28 days of immersion. Universitas Diponegoro 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/53248 10.14710/presipitasi.v20i3.534-544 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 534-544 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 3 (2023): November 2023; 534-544 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/53248/pdf Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/22858 2020-04-17T11:38:10Z presipitasi:RSA

Pengaruh Variasi Gula Pasir Terhadap Waktu Pengomposan Ditinjau Dari Rasio C/N Pada Sampah Sayuran di Pasar Jati Banyumanik Dengan Penambahan Bioaktivator Lingkungan Hadiwidodo, Mochtar Sutrisno, Endro Sabrina, Azzura Teknik Lingkungan Sampah Sayuran, Variasi Gula Pasir, Bioaktivator Lingkungan, Waktu Kematangan Kompos Optimum Sampah sayuran di Pasar Jati Banyumanik biasa dibuang tanpa dilakukan pemanfaatan dan pengolahan. Sampah sayuran dimanfaatkan sebagai bahan baku pengomposan karena memiliki kandungan karbon, nitrogen, fosfor dan kalium yang dibutuhkan oleh tanaman dan kesuburan tanah. Penelitian ini bertujuan untuk mengetahui pengaruh variasi gula pasir terhadap waktu pengomposan ditinjau dari rasio c/n pada sampah sayuran di Pasar Jati Banyumanik dengan penambahan bioaktivator lingkungan. Variasi gula pasir yang digunakan yaitu 0 gram, 20 gram, 30 gram, 40 gram, 50 gram, dan 60 gram. Proses pengomposan dilakukan selama 14 hari. Kompos yang diperoleh dianalisis  suhu, pH, kadar air, C-Organik, N-Total, P-Total, K-Total, penyusutan kompos, warna dan bau. Hasil analisis dibandingkan dengan SNI 19-7030-2004. Analisis kompos dilakukan pada hari ke 0, 3, 7, 10, dan 14. Waktu kematangan kompos optimum ditinjau dari rasio c/n yang dapat dicapai kompos dengan variasi gula pasir sebanyak 40 gram pada reaktor G3. Seluruh parameter yang diuji telah memenuhi standar kompos matang SNI 19-7030-2004. Universitas Diponegoro 2019-06-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22858 10.14710/presipitasi.v16i1.36-43 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 36-43 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 16, No 1 (2019): Maret 2019; 36-43 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/22858/pdf Copyright (c) 2019 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

oai:ojs.ejournal.undip.ac.id:article/69615 2025-12-04T00:06:42Z presipitasi:RCS

Life Cycle Assessment of the Campus Wastewater Treatment Using the Lab-scale of Anaerobic Baffled Reactor Aziz, Hafif Ahmad Abdul Yulistyorini, Anie Rifai, Ridwan Muhamad Hamzah, Sofiah Teknik Lingkungan; Teknik Sipil; Rekayasa Ilmu Lingkungan; Manajemen Lingkungan; Sustainable Development; Water Conservation; Ilmu Lingkungan; Life cycle assessment; anaerobic baffled reactor; campus wastewater treatment; environmental performance; sustainable campus In Indonesia, the waste sector is responsible for 10.59% (130,188.21 GgCO2e) of global warming emissions, one of which is from campus domestic wastewater due to the lack of wastewater treatment plants. Only 0.2% of the 6,472 campuses have treatment systems, such as Universitas Negeri Malang (UM) use a fabricated anaerobic baffled reactor (FABR) for wastewater treatment plants for its green campus initiatives, yet available only for several buildings and do not treat all wastewater generated from the campus activity. However, Life Cycle Assessment (LCA) of ABR system has not been widely studied, especially when it uses in treating of the campus wastewater. This study aims to conduct the LCA of the laboratory -scale ABR system in the campus wastewater treatment with gate-to-gate scope using Simapro 9.1.11 and the CML-IA Baseline. Three scenarios were tested: untreated wastewater, ABR equipped with peristaltic pumps, ABR without pumps. The results indicated that ABR treatment had a significantly lower environmental impact than untreated wastewater, with the greatest reduction in global warming potential (1.51E-08 to 4.98E-11), followed by eutrophication and photochemical oxidation. This study is limited to the ABR system, future research could expand to include the full lifecycle, from material collection to final results.  Universitas Diponegoro 2025-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69615 10.14710/presipitasi.v22i2.528-546 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 528-546 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 22, No 2 (2025): July 2025; 528-546 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/69615/pdf Copyright (c) 2025 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/43976 2022-12-14T20:16:03Z presipitasi:RCS

Analysis of Rainwater Harvesting (RWH) Capacity in Leuwigajah Urban-Village, South Cimahi Marselina, Mariana Choirunnisa, Karina Indah Nuralamsyah, Ery Nurhayati, Siti Ai Teknik Lingkungan Drought; rainwater; rainwater harvesting (RWH); South Cimahi District Leuwigajah Urban-Village is an area belonging to Citarum Watershed. Thus, it has a high potential to experience floods during the rainy season. Meanwhile, the area often experiences drought during the dry season due to high surface runoff and low infiltration. This paper discusses the capacity of RWH needed in N.A. of R.W. 19. It discusses hydrological conditions of the Cimahi watershed by presenting an analysis of rainfall data, land use data, and extreme discharge data, both maximum and minimum extreme discharges. Therefore, the Citarum Harum Community Service team decided to build Rainwater Harvesting (RWH) as a water supply source during the dry season. The RWH was built based on people's water needs 10 years later, from 2022-to 2032. Based on the calculations explained in the Rainwater Storage Module book issued by the Ministry of Public Works and Housing, the volume of RWH needed is 125 m3. However, due to limited land, it was decided to build an RWH with dimensions of 2 m x 2 m x 2 m which can accommodate 8 m3 of water. The water in this RWH can fulfil 6.4% of daily water needs, so it is recommended to be used for emergency purposes or secondary purposes such as agriculture and plantations. Universitas Diponegoro 2022-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/43976 10.14710/presipitasi.v19i1.122-136 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 122-136 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 1 (2022): March 2022; 122-136 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/43976/pdf_1 Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10967 2016-05-05T04:32:12Z presipitasi:RVA

CLUSTERING DATA PENCEMARAN UDARA SEKTOR INDUSTRI DI JAWA TENGAH DENGAN KOHONEN NEURAL NETWORK Warsito, Budi Ispriyanti, Dwi Widayanti, Henny Environmental Engineering Kohonen, Cluster, air pollution Industrial clustering in Central Java based on polutan yielded to be intended in order to obtaine an industrial group as information in development wisdom specially at Central Java Province. The  method that  is  selected  in  industrial  clustering  is  Kohonen  Artificial  Neural  Network.  An Artificial Neural Network is configured for a specific application, such as pattern recognition or data classification, through a learning process. Kohonen Neural Network can be used in data clustering through unsupervised learning. This network will divide the input pattern into some cluster, based on trained weight. Then this weight will be updated until it can classified itself into the class needed. This paper will present the result of the air contamination data clustering at industrial sector in Central Java at the year 2006 using Kohonen Neural Network. The result of this clustering is industrial clustering, based on polutan yielded, become three clusters. Universitas Diponegoro 2008-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10967 10.14710/presipitasi.v4i1.17-22 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 17-22 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 4, No 1 (2008): Vol 4, No 1 (2008); 17-22 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10967/8658

oai:ojs.ejournal.undip.ac.id:article/55746 2025-05-18T20:36:13Z presipitasi:RCS

Socio-Spatial Analysis of Deforestation in Soeharto Forest Using Remote Sensing Method Megawati, Tri Furi Rahma, Melati Julia Semedi, Bambang Afandhi, Aminudin Ilmu Lingkungan Deforestation; forest fringe communities; social ecology; soeharto forest park The broader transformation of forested areas into open land is commonly referred to as deforestation. Deforestation poses a significant challenge to forest preservation and environmental sustainability. This study aims to employ remote sensing methods to analyze the spatial patterns of deforestation in the Soeharto Forest. It is complemented by in-depth interview data gathered from individuals engaged in forest exploitation activities. The findings reveal a notable decline in land cover within the Soeharto Forest Park area from 1992 to 2022, resulting in a reduction to 335,994,000,000 m2. Further analysis of the in-depth interview data indicates that forest fringe communities have taken control of 15,536,393.69 m2 of land to fulfill their livelihood and cultivation needs. The decline in land cover will also be more critical because of moving the national capital. The research results also discussed land cover areas using remote sensing. However, social support discusses whether land cover change is caused by land tenure by forest fringe communities and plans to relocate the national capital. Where this is also influenced by the formulation of government policies that have not balanced bee interests of ecology and the social culture ture of the community.  Universitas Diponegoro 2024-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55746 10.14710/presipitasi.v21i1.174-183 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 174-183 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 1 (2024): March 2024; 174-183 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/55746/xml Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/46959 2023-03-29T21:11:54Z presipitasi:RSA

The Effect of Sustainable Livelihoods on the COVID-19 Disaster Recovery in Agrotourism Wulandari, Verlina Intan Sholihah, Qomariyatus Parmawati, Rita Environmental Management and Development Agrotourism; COVID-19; disaster recovery; sustainable livelihood Kebun Belimbing Ngringinrejo is the leading agrotourism in Bojonegoro Regency. COVID-19 pandemic has decreased a numeral of tourist visits which caused agrotourism income to decline, business actors, to lose their jobs, and the livelihoods of starfruit farmers to be threatened. After the COVID-19 vaccination, the re-opening of agrotourism began with the application of health protocols. Agrotourism must carry out a recovery process to return to normality. The study aims to determine the condition of sustainable livelihoods for star fruit farmers and business actors and the effect of livelihood assets on disaster recovery. This research was conducted so that agrotourism can recover immediately by optimizing high assets and improving low assets. This study used the descriptive statistic and analysis of SEM-PLS. The outcome indicated that the condition of sustainable livelihoods for starfruit farmers and business actors has a high natural, social, and physical assets. At the same time, low assets are human and financial assets. Four sustainable livelihood assets are human, natural, social, and physical, significantly influencing disaster recovery. In contrast, financial assets have no significant impact on disaster recovery. The most significant indicators for the disaster recovery process in agrotourism are developing digital solutions, and the lowest indicator is designing risk communication. Universitas Diponegoro 2022-07-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46959 10.14710/presipitasi.v19i2.351-362 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 351-362 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 19, No 2 (2022): July 2022; 351-362 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/46959/pdf Copyright (c) 2022 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/10999 2016-05-04T22:15:00Z presipitasi:RVA

TINJAUAN KONDISI BENTANG LAHAN KAWASAN TEMBALANG AKIBAT PERUBAHAN TATA GUNA LAHAN (LAND USE) Samadikun, Budi Prasetyo Environmental Engineering Landscape alteration, changing of land use, problems . Universitas Diponegoro 2009-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10999 10.14710/presipitasi.v6i1.40-46 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 40-46 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 6, No 1 (2009): Vol 6, No 1 (2009); 40-46 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/10999/8683

oai:ojs.ejournal.undip.ac.id:article/59111 2025-05-18T20:37:10Z presipitasi:RCS

The Effect of Pollution Source Distance, Construction, and Behavior of Dug Well Users on Total Coliform Content Arifiani, Kirana Nurul Sunarto, Sunarto Rachmawati, Siti Pencemaran Lingkungan; Pencemaran Air, Water Pollution Dug well; total coliform; construction; human behavior Dug well is a water source that is located relatively close to the ground surface so it is prone to pollution. This research aims to analyze the effect pollution source distance, construction and behavior of dug well users on total coliform content in Karangturi Village. Data collection was carried out by examining samples of dug well water in the laboratory, observing and measuring well construction, and using questionnaires to measure the behavior of well users. The research results show that 23 (95.8%) wells have a total coliform >0 MPN/100ml and 1 (4.2%) well have a total coliform content of 0 MPN/100ml. Simultaneously (p value=0.106) the variable distance to the pollutant source and partially (p value= 0.998) each livestock pen and septic tank variable do not have a significant influence on the total coliform content. Simultaneous well construction (p value= 0.489) and partially (p value= 0.999) of each well construction variable did not have a significant effect on the total coliform content. The behavioral variable simultaneously (p value= 0.346) and partially the knowledge variable (p value= 1.000), the attitude variable (p value= 0.999), and the attitude variable (p value= 0.999) did not have a significant effect on the total coliform content. Universitas Diponegoro 2024-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59111 10.14710/presipitasi.v21i2.446-454 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 446-454 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 2 (2024): July 2024; 446-454 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/59111/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/33876 2020-12-16T21:33:11Z presipitasi:RSA

Potensi Sumber Energi Terbarukan dari Biomassa yang Berasal dari Sumber Daya Alam di Balikpapan Potential of Renewable Energy Resources from Biomass Derived by Natural Resources In Balikpapan Febrianti, Nia Filiana, Firilia Hasanah, Primadina Teknik Lingkungan; Ilmu Lingkungan; Teknik Kimia potensi biomassa; sumber energi terbarukan; sumber daya alam Environmental Engineering; Environmental Science; Chemical Engineering biomass potential; renewable energy sources; natural resources Sumber energi biomassa mempunyai beberapa kelebihan seperti dapat dijadikan sebagai sumber energi yang dapat diperbaharui sehingga sumber energi dari biomassa tersebut dapat menyediakan sumber energi yang berkelanjutan. Salah satu langkah awal untuk mengetahui potensi sumber daya energi yang bisa dikembangkan untuk menjadi sumber energi terbarukan adalah dengan cara melakukan pendataan. Pendataan yang dilakukan pada penelitian ini lebih berfokus pada biomassa terdapat di Balikpapan. Potensi biomassa yang terdapat di Balikpapan perlu diketahui dengan cara mengumpulkan dan mengelompokkan data biomassa tersebut berdasarkan hasil produk dari pertanian dan perkebunan. Data yang telah dikumpulkan dari data sekunder dan dari survey kemudian dipetakan untuk dapat dilihat potensi biomassa yang paling besar yang terdapat di Balikpapan. Persentase hasil panen per tahun paling besar terdapat di Kecamatan Balikpapan Utara yaitu sebesar 31% disbanding dengan lima kecamatan lainnya. Potensi biomassa yang berasal dari sumber daya alam Kota Balikpapan yang paling besar jumlah hasil panennya yaitu tanaman pangan ubi kayu yang terdapat di Kecamatan Balikpapan Utara sebesar 7.259 ton/tahun. Pada jenis buah, salak memiliki jumlah hasil panen tertinggi per tahun yaitu sekitar 32.945 ton/tahun. Pada potensi limbah dari tanaman pangan limbah ubi kayu yang berasal dari batang pohon sebesar 5.807,2 ton/tahun, kulit ubi sebesar 1.088,8 ton/tahun. Biomass energy sources have several advantages, such as being used as a renewable energy source so that the energy source from biomass can provide a sustainable energy source. One of the first steps to determine the potential of energy resources that can be developed into renewable energy sources is by collecting data. The data collection carried out in this study focuses more on the biomass found in Balikpapan. The biomass potential in Balikpapan needs to be known by collecting and classifying the biomass data based on products from agriculture and plantations. The data that has been collected from secondary data and from surveys are then mapped to see the greatest biomass potential found in Balikpapan. The largest percentage of crop yields per year is found in North Balikpapan Subdistrict, which is 31% compared to five other sub-districts. The potential of biomass from Balikpapan City's natural resources, which the greatest amount of harvest, is the cassava food plant in North Balikpapan sub-district of 7,259 tons / year. In the type of fruit, snakefruit (salak) has the highest number of yields per year, which is about32,945 tons / year. The potential for waste from food plants, cassava waste originating from tree trunks, is 5,807.2 tons / year, and cassava skin is 1,088.8 tons / year Universitas Diponegoro 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33876 10.14710/interaksi.%v.%i.%p Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 316-323 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 17, No 3 (2020): November 2020; 316-323 2550-0023 1907-817X ind https://ejournal.undip.ac.id/index.php/presipitasi/article/view/33876/pdf Copyright (c) 2020 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/78415 2026-04-21T07:44:25Z presipitasi:RSA

Economic Activity and Greenhouse Gas Emissions: An Empirical Study of the Indonesian Manufacturing Industry Fawzia, Annisa Ayu Fawzia, Aulia Valerie Nurjani, Emilya Ahmada, Benarifo Environmental Sciece; Industrial Economic Data panel regression; economic variables; greenhouse gases emission; manufacturing industry Manufacturing industry plays significant role in the Indonesian economy. However, this sector was the largest contributor to greenhouse gas (GHG) emissions in 2022, reaching 38% of total emissions released by all sectors. The purposes of this study are to identify characteristics and trends of economic activity and GHG emissions from fuel consumption across 24 manufacturing subsectors, and to analyze the effect of some economic variables on GHG emissions of the manufacturing industry in Indonesia. Economic variables from 2012-2022, including machinery maintenance intensity, labor intensity, resource-use intensity, value-added, and GHG intensity, were analyzed using descriptive statistics and fixed-effect model panel regression. The results show that labor intensity in the manufacturing subsector tends to decline, while resource use intensity and value-added are increasing. Meanwhile, machinery maintenance intensity shows considerable variation without consistent concentration in particular subsectors. Panel data regression indicates that maintenance intensity and labor intensity have significant positive effect on GHG intensity, while resource-use intensity and value-added have significant negative effect. Based on these results, interventions on economic variables can influence GHG emission levels. This study recommends fiscal policy interventions, such as subsidies for environmentally friendly equipment and incentives for green industries, to strengthen the performance of environmentally friendly industries. Universitas Diponegoro 2026-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78415 10.14710/presipitasi.v23i1.95-114 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 95-114 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 23, No 1 (2026): March 2026; 95-114 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/78415/pdf Copyright (c) 2026 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/1475 2012-03-29T04:45:01Z presipitasi:RVA

PERENCANAAN REAKTOR LUMPUR IPAL DOMESTIK MOJOSONGO SURAKARTA Sutrisno, Endro Budisulistiorini, Sri Hapsari Environmental Engineering; Environment Domestic waste, sludge, Mojosongo Domestic WWTP, composting Increasing of the number of society and development for the residential facilities has resulted problem such as domestic wastewater. One of Domestic WWTP in Surakarta is Mojosongo WWTP. It serves house connections which lies in northern of Surakarta. It includes some units, those are inlet, first settling, aerated lagoon I, aerated  lagoon II, second sedimentation, and sludge drying bed. The treatment represents for the environmental treatment and to avoids the presence of pollution. It will result effluent where has required standard regulation for wastewater and sludge. The sludge there becomes problem because it is just thrown to the final disposal. Therefore, one of the right treatment is to recycle sludge using composting. Recycling the sludge will also give benefit to PDAM as the stakeholder of WWTP. Sludge resulted in a month is 20,54 m3. Raw materials used for composting are sludge, organic garbage, and saw invade with ratio 0,05: 1: 0,025. Product composting resulted is 7,3 m3/day and using 1200 m3 area. Units of composting there includes receiving space, composting reactor, filtering and packaging, warehouse, and garage.  Universitas Diponegoro 2012-02-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1475 10.14710/presipitasi.v7i1.23-31 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 23-31 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 7, No 1 (2010): Vol 7, No 1 (2010); 23-31 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/1475/1237

oai:ojs.ejournal.undip.ac.id:article/49660 2023-04-08T21:36:46Z presipitasi:RCS

Pollution Load Analysis of Wonokromo River with Program System Dynamics (STELLA) Thifalina, Filial Dhiya Zaman, Badrus Sarminingsih, Anik Environmental Engineering; Environmental Management; Water Quality Management River water quality; wonokromo River; dynamic system; STELLA Population growth, the increase in the industrial sector and the presence of waste from activities that haven’t been treated properly can make a water river being contaimined high pollutants. The pollutant parameters identified is Total Suspended Solid (TSS), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Dissolved Oxygen (DO) and E.Coli. One of the polluted rivers is Wonokromo River which is located in Surabaya City, according from monitoring results Balai Besar Wilayah Sungai (BBWS) Brantas in 2021 the pollutant value in river with TSS is 484 mg/L, BOD is 15.96 mg/L, COD 23.91 mg/L, DO 3.67 mg/L, and E.coli 4.283 MPN/100 ml from the monitoring data included polluted category. Depectin model of water river conditions using the STELLA program. The results indicate that the water quality of the Wonokromo River is polluted with the parameters TSS, BOD and E. Coli, determination refers to Goverment Regulations number 22 in 2021 about “Implementation of Environmental Protection and Management” in clasification II for raw water. So Wonokromo River is not suitable as a source of raw water in that year and a policy scenario is needed to reduce water river pollution. Universitas Diponegoro 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49660 10.14710/presipitasi.v20i1.1-10 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 1-10 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 20, No 1 (2023): March 2023; 1-10 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/49660/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/downloadSuppFile/49660/11885 Copyright (c) 2023 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/14713 2020-04-17T11:33:43Z presipitasi:RSA

PENGARUH FERMENTASI KOTORAN KAMBING PADA EMISI GAS (CO2, CH4, N2O) VERMICOMPOSTING SAMPAH ORGANIK Sutrisno, Endro Wardana, Irawan Wisnu Priyambada, Ika Bagus Teknik Lingkungan Sampah organik, kotoran kambing, Aspergillus niger, CO2 , CH4 , N2O Kegiatan pengelolaan sampah dapat melepaskan gas rumah kaca (GRK) ke atmosfer dan mengintensifkan iklim global. Pengomposan adalah proses komponen aerobik karbon degradable organik dalam limbah diubah menjadi karbon dioksida. Menggabungkan prakompos dan vermicomposting berpotensi menimbulkan emisi amonia dan gas rumah kaca. Desain percobaan dilakukan dengan memberikan fermentasi kotoran kambing dalam vermicomposting sampah organik dengan jumlah yang berbeda untuk mengetahui pengaruh fermentasi kotoran kambing terhadap emisi gas CO2, CH4, N2O saat kematangan kompos. Desain penelitian ini menggunakan 4 kombinasi yaitu kombinasi pertama 80% sampah organik, 20% kotoran kambing; kombinasi kedua yaitu 80% sampah organik, 20% kotoran kambing, 100 mL Aspergilus niger; kombinasi ketiga yaitu 60% sampah organik, 40% kotoran kambing; dan kombinasi keempat yaitu 60% sampah organik, 40% kotoran kambing, 100 mL Aspergilus niger. Kriteria pengujian yang digunakan adalah pengujian emisi gas CO2, CH4, N2O di akhir kematangan kompos. Dengan adanya penambahan kotoran kambing, semakin banyak kotoran kambing ditambahkan emisi gas CO2, CH4dan NO semakin banyak. Sedangkan dengan ditambahkan Aspergillus niger, proses fermentasi semakin cepat dalam menghasilkan emisi gas CO2, CH4 dan N2O. Universitas Diponegoro 2017-05-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14713 10.14710/presipitasi.v14i1.1-4 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 1-4 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 14, No 1 (2017): Maret 2017; 1-4 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/14713/11214 Copyright (c) 2017 Jurnal  Presipitasi:  Media  Komunikasi  dan  Pengembangan Teknik Lingkungan https://creativecommons.org/licenses/by-sa/4.0/

oai:ojs.ejournal.undip.ac.id:article/62381 2025-05-18T20:39:07Z presipitasi:RSA

Potential Waste from Temporary Shelters in the Area of Universitas Pertamina as Raw Materials of Refuse Derived Fuel (RDF) Ridhosari, Betanti Suryawan, I Wayan Koko Rahman, Ari Ardianto, Ardhan Zahra, Nurulbaiti Listyendah Teknik Lingkungan Refuse derived fuel (RDF); water content; ash content; calorific value; waste-to-energy. Universitas Pertamina has a strong vision in the energy field and is developing environmentally friendly infrastructure and management, including waste management. Considering these efforts, ‘waste-to-energy’ is an interesting concept to be developed. The practical application of this concept is exemplified by refuse-derived fuel (RDF). This research aimed to analyze the potential of waste from Universitas Pertamina’s temporary shelter as raw materials for RDF and identify the potential energy that can be produced. This research began by measuring the generation and composition of waste. Each type of waste is identified for water content, ash content, and calorific value. These findings were used to identify which waste types could serve as RDF raw materials. The water content analysis showed that, except for food waste, all waste types met RDF standards. All waste types also met the RDF ash content standards. The calorific value analysis showed that plastic waste had the highest heating value at 45.6 MJ/kg, followed by rubber waste (40.1 MJ/kg) and styrofoam (35.0 MJ/kg). Calculations for waste generation potential and heating value indicated a total potential calorific value reached 9,895.1 MJ/day. With this significant potential, Universitas Pertamina has the opportunity to develop innovative waste management, especially in producing RDF. Universitas Diponegoro 2024-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62381 10.14710/presipitasi.v21i3.649-659 Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 649-659 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 21, No 3 (2024): November 2024; 649-659 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/62381/pdf Copyright (c) 2024 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0

oai:ojs.ejournal.undip.ac.id:article/40148 2022-02-16T03:26:18Z presipitasi:RCS

Multi Perception Analysis of Medan City Residents Against the River Environment Rachman, Indriyani Hutagalung, Ira Rumiris Matsumoto, Toru Ilmu Lingkungan Deli Medan River; perception; wastewater; water pollution Deli Medan River is one of the rivers used as a mode of transportation in the 1980s. The shift in water transportation to land causes the Deli Medan River not to get attention and tend to be ignored. This study aims to describe the perception of the people of Medan City on the Deli River Medan while at the same time looking for a correlation between each variable. This study involved 365 respondents divided from various urban villages in the Medan City area (136 men and 232 girls). The selected respondents are aged 9-60 years with a vulnerable elementary school to a college education. Spearman correlation analysis is used to see the relationship between variables. The results of the study inform that there is no relationship between pollution and siltation that occurs in the Deli River Medan, different results are shown between the changing of river transportation modes to land caused by river silting, the level of education and awareness in disposing of waste, as well as pollution that occurs and industries that dispose of waste. Wastewater in the Medan Deli River body (Sig. <0.05). Furthermore, the Deli Medan River has been polluting by waste and wastewater. Universitas Diponegoro 2021-07-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://ejournal.undip.ac.id/index.php/presipitasi/article/view/40148 10.14710/interaksi.%v.%i.%p Jurnal Presipitasi: Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 261-270 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan; Vol 18, No 2 (2021): July 2021; 261-270 2550-0023 1907-817X eng https://ejournal.undip.ac.id/index.php/presipitasi/article/view/40148/pdf Copyright (c) 2021 Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan http://creativecommons.org/licenses/by-nc-sa/4.0 9a5224c89c6d724b6d7a97241cb85fb9