DOI: https://doi.org/10.14710/jil.21.3.659-666

The Effect of Cone Area Variations on the Continuous Discharges Flow (CDF) Method Sedimentation Unit as a New Method for Raw Water Turbidity Removal

1Department of Environmental Engineering, Universitas Andalas, Kota Padang Sumatera Barat, Indonesia

2Department of Environmental Engineering, Universitas Andalas, Indonesia

Received: 16 Jul 2022; Revised: 8 Apr 2023; Accepted: 6 May 2023; Available online: 11 Jul 2023; Published: 11 Jul 2023.
Editor(s): Budi Warsito

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Abstract

The Sedimentation Unit Continuous Discharges Flow (CDF) method is a modification by adding a continuous and controlled discharge flow as a net force acting on the particles to increase the efficiency of turbidity removal by applying the principle of a leaky tank at the bottom of the settling zone. The production capacity of the sedimentation unit using the CDF method is reduced due to the CDF flow of 6% of the flow rate so it needs to be recirculated. This study aims to maintain the production flow rate of the system and increase the efficiency of turbidity removal by recirculating the CDF flow. The research reactor consisted of a coagulation unit, flocculation unit, and sedimentation method using 6% CDF with a flow rate of 240 L/hour and 360 L/hour, and variations in the recirculation flow of 6% CDF to the flocculation unit were 0%, 25%, 50%, 75%, and 100 %. The sedimentation detention time at a flow rate of 240 L/hour and 360 L/hour was 90 minutes and 60 minutes, respectively. Research on a laboratory scale with raw water turbidity of 25,536 NTU. The results showed that the greater the CDF flow recirculation value, the higher the turbidity removal efficiency. Rank Spearman analysis, the correlation value of the CDF flow recirculation value to the efficiency of removal of turbidity is 0.980 and the significance value is 0.00 which means strong and significant. The highest turbidity removal efficiency was achieved at the 100% CDF flow recirculation value, ie at 240 L/hour flow rate was 87.21% with final turbidity 3.267 NTU, while at 360 L/hour flow rate was 82.50% with final turbidity 4,528 NTU. Uprating the flow rate in the experiment was able to produce a final turbidity value that met the drinking water quality standard, which was 5 NTU

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Keywords: Improved efficiency, Turbidity removal, Raw water, CDF method sedimentation, CDF flow recirculation
Funding: LPPM Universitas Andalas

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Section: Research Article
Language : EN
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  1. Achmad, C., dan Alfan, P. 2013. Kajian Kinerja Teknis Proses dan Operasional Unit Koagulasi-Flokulasi-Sedimentasi pada Instalasi Pengolahan Air (IPA) Kedungguling PDAM Sidoarjo. Jurnal Teknik Lingkungan. Vol 2 (02). ISSN 2337-3539. DOI: 10.12962/j23373539.v2i2.4427.TextinIndonesian
  2. Badan Standar Nasional. 2008. Standar Nasional Indonesia (SNI) No. 6773, Spesifikasi Unit Paket Instalasi Pengolahan Air. Text in Indonesian
  3. Badan Standar Nasional. 2008. Standar Nasional Indonesia (SNI) No. 6774, Tata Cara Perencanaan Unit Paket Instalasi Pengolahan Air. Text in Indonesian
  4. Badan Standar Nasional. 2008. Standar Nasional Indonesia (SNI) No. 6989.57, Metoda Pengambilan Contoh Air Permukaan. Text in Indonesian
  5. Badan Standar Nasional. 2000. Standar Nasional Indonesia (SNI) No. 19.6449. Metode Pengujian Koagulasi-Flokulasi dengan Cara Jar. Text in Indonesian
  6. Badan Standar Nasional. 2005. Standar Nasional Indonesia (SNI) No. 06-6989.25. Cara Uji Kekeruhan dengan Nefelometer, Air dan Air Limbah. Text in Indonesian
  7. Crittenden, J.C., Trussell, R.R., Hand, D.W, Howe, K.J., dan Tchobanoglous, G. (2012). Water Treatment: Principles and Design, 3nd ed., John Wiley & Sons, Inc, Hoboken, New Jersey
  8. Gurjar, A., Bhorkar, M., Bhole, A. G., dan Baitule, P. 2017. Performance Study of Tube Settlers Module. Journal of Engineering Research and Application, 7(3), 52–55. https://doi.org/10.9790/9622-0703065255
  9. Hudson, H. E. Jr., 1981. Water Clarification Processes: Practical Design and Evaluation, Van Nostrand Reinhold Environmental Engineering Series, Litton Educational Publishing Inc
  10. Kementerian Kesehatan Republik Indonesia. 2010. Peraturan Menteri Kesehatan Republik Indonesia No. 492 Tahun 2010 tentang Persyaratan Kualitas Air Minum. Text in Indonesian
  11. Qasim, S.R., Motley, E.M., dan Zhu, G. 2000. Water Works Engineering: Planning, Design, and Operation. London: Prentice–Hall
  12. Ridwan and Afrianita, R., 2020. Application of Continuous Discharge Flow (CDF) as New Method in The Sedimentation Unit for Removal of Raw Water Turbidity. Journal of Environmental Treatment Techniques 9 (3), 698-703. ISSN 2309-1185
  13. Ridwan, Afrianita, R., dan Kurniawan, Y. 2021. Modification of the Sedimentation Unit with Continuous Discharges Flow ( CDF ) as a New Method to Increase Turbidity Removal in Raw Water. Andalasian International Journal of Applied Science, Engineering and Technology 01(01), 1–9, ISSN 2797-0442
  14. Ridwan, Afrianita, R., dan Resi M.D. 2021. The Effect of Coagulants Variations in the Coagulation Unit on the Efficiency of Raw Water Turbidity Removal Sedimentation Unit Continuous Discharges Flow (CDF) as a New Method. Andalasian International Journal of Applied Science, Engineering and Technology 01(02), 65-75. ISSN 2797-0442
  15. Ridwan, Afrianita, R., dan Gustina, Y. 2022. The Effect of Variation in Cone Position Heigth on Raw Water Turbidity Removal in Sedimentation Unit Continuous Discharge Flow (CDF) Method as a New Method. Jurnal Ilmu Lingkungan, 20 (1), 58-64. ISSN 1829-8907
  16. Reynolds, T.D & Richards, P.A, 1996. Unit Operations and Processes in Environmental Engineering, ed.2, PWS Publishing Company
  17. Rifai, J. 2007. Pemeriksaan Kualitas Air Bersih dengan Koagulan Alum dan PAC di IPA Juruq PDAM Kota Surakarta. Tugas Akhir. Teknik Sipil Universitas Sebelas Maret Surakarta. Text in Indonesian
  18. Sujarweni, W. (2014). SPSS untuk Penelitian. Yogyakarta: Pustaka Baru Press. Text in Indonesian

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