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The Effectiveness of Variations in Contact Time and Density of Water Hyacinth Plants in Reducing COD Level in Tofu Industrial Wastewater

*Wahyu Rizki Nur Cahyani  -  Diponegoro University, Indonesia
Tri Joko  -  Diponegoro University, Indonesia
Nikie Astorina Yunita Dewanti  -  Diponegoro University, Indonesia

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Abstract

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.

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Keywords: Water hyacinth; phytoremediation; COD; tofu wastewater
Funding: Universitas Diponegoro

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  1. Oktorina AN, et al. 2019. Phytoremediation of tofu wastewater using Eichhornia crassipes. Journal of Physics : Conference Series 1341 (5), 1-6
  2. Suyasa WB. 2015. Pencemaran Air dan Pengolahan Air Limbah. Denpasar : Udayana University Press
  3. Yuningrat NW, dkk. 2012. Degradasi Pencemar Organik dalam Lindi dengan Proses Oksidasi Lanjut. Jurnal Sains dan Teknologi 1 (2), 73-84
  4. Siregar UJ dan Siregar CA. 2010. Fitoremediasi: Prinsip dan Prakteknya dalam Restorasi Lahan Paska Tambang di Indonesia. Bogor : SEAMEO BIOTROP, Southeast Asian Regional Centre for Tropical Biology
  5. Gupta P, et al. 2016. Use of biochar to enhance constructed wetland performance in wastewater reclamation. Environmental Engineering Research 21 (1) : 36-44
  6. Patel S. 2012. Threats, management and envisaged utilizations of aquatic weed Eichhornia crassipes: an overview. Reviews in Environmental Science and Bio/Technology 11 (3) : 249-259
  7. Golubev IA. 2011. Handbook of Phytoremediation. New York : NOVA Environmental Science, Engineering and Technology. ISBN: 978-1-61728- 753-4
  8. Khiattudin, M. 2003. Melestarikan Sumber Daya Air dengan Teknologi Rawa Buatan. Gajah Mada University Press. Yogyakarta
  9. Suswati ACSP dan Wibisono G. 2013. Pengolahan Limbah Domestik dengan Teknologi Taman Tanaman Air (Constructed Wetlands). Indonesian Green Technology Journal 2 (2) : 70-77
  10. Permanandiah EE, dkk. 2017. Efektifitas Constructed Wetlands tipe Subsurface Flow System dengan Menggunakan Tanaman Cyperus Rotundus untuk Menurunkan Kadar Fosfat dan COD pada Limbah Cair Laundry. Jurnal Kesehatan Masyarakat 5 (1) : 444-449
  11. Caroline J dan Moa GA. 2015. Fitoremediasi Logam Timbal (Pb) Menggunakan Tanaman Melati Air (Echinodorus palaefolius) pada Limbah Industri Peleburan Tembaga dan Kuningan. Prosiding Seminar Nasional Sains dan Teknologi Terapan III 733-744
  12. Nugroho AA, dkk. 2019. Pengaruh Lama Kontak dan Kerapatan Tanaman Eceng Gondok dalam Mereduksi Kadmium pada Air Larutan Pupuk Buatan. Jurnal Kesehatan Masyarakat 7 (1) : 374-380
  13. Ratnani RD, dkk. 2011. Pemanfaatan Eceng Gondok (Eichornia Crassipes) Untuk Menurunkan Kandungan COD (Chemical Oxygen Demand), pH, Bau, dan Warna pada Limbah Cair Tahu. Jurnal Momentum UNWAHAS 7 (1) : 41-47
  14. Disyamto DA, dkk. 2014. Pengolahan Limbah Cair Indstri Tahu Menggunakan Tanaman Thypa Latifolia Dengan Proses Fitoremediasi. JOM FTEKNIK. 1 (2) : 1-13
  15. Astuti AD, dkk. 2017. Kinerja Subsurface Constructed Wetland Multylayer Filtration Tipe Aliran Vertikal dengan Menggunakan Tanaman Akar Wangi (Vetivera zozanoides) dalam Penyisihan BOD dan COD dalam Air Limbah Kantin. Penelitian dan Karya Ilmiah 1 (2) : 91-108

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