Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
권호 표지
DOI QR코드

DOI QR Code

Addition of Coagulants for Phosphorus Removal from Combined Sewer Overflows (CSOs)

합류식 하수관거 월류수의 인제거를 위한 응집제 투여

  • 손상미 (건국대학교 사회환경시스템공학과) ;
  • 주티담롱판 (건국대학교 사회환경시스템공학과) ;
  • 박기영 (건국대학교 사회환경시스템공학과)
  • Published : 2012.04.16
Download PDF
⟨ Previous Next ⟩

Abstract

The coagulation of combined sewer overflows ($CSO_{s}$) was investigated by jar-testing with several commercial coagulants. $CSO_{s}$ sample showed different characteristics of coagulation from secondary wastewater with three common coagulants, aluminum sulfate, ferric chloride and polyaluminum chloride (PACl). Jar-tests showed that relatively wide range of optimal SS and T-P removal yielded with alum and ferric chloride compared with cationic polymers, though efficient SS and T-P removal can be achieved with all three coagulants. The decrease of pH was caused by the increase in dosage of aluminum sulfate, ferric chloride and PACl as coagulants. The pH was changed from 7.0 to 4.7 with the dosages of ferric chloride 25 mL/L. Aluminum sulfate revealed pH of 5.0 and PACl was highest pH of 5.4 after dosing of coagulants. The optimal pH to treat $CSO_{s}$ with aluminum sulfate were 6-6.5; with PACl 6-7, and with ferric chloride higher than 7.

Keywords

References

  1. 방기웅, 이준호 (2001) Swirl 농축분리기를 이용한 합류식 하수관 월류수처리. 대한환경공학회, 23(1), pp. 21-30.
  2. 손상미, 주티담롱판, 박기영, 박철휘 (2010) 합류식 하수관거월류수 처리를 위한 섬유사 여과 장치의 처리특성. 상하수도학회지, 24(2) 231-236.
  3. 워터저널 (2004) 스페셜리포트 Part 3: 비점오염 처리기술. 워터저널, 2004년 10월호.
  4. 한정균, 주재영, 이범준, 나지훈, 박철휘 (2009) 합류식하수 처리를 위한 와류형 분리장치의 최적운전조건. 상하수도학회지, 23(5), pp. 557-564.
  5. 환경부 (2006) 비점오염원 업무편람.
  6. Ab Razak, I.A., Christensen, E.R. (2001) Water quality before and after deep tunnel operation in Milwaukee, Wisconsin. Water Res.. 35(11), 2683-2692. https://doi.org/10.1016/S0043-1354(00)00556-X
  7. APHA, AWWA, WEF (2005) Standard Methods for the Examination of Water and Wastewater, 21st edn, Amercian Public Health Association, Washington DC, USA.
  8. de Haas, D. W., Wentzel, M. C., Ekama, G. A. (2000) The use of simultaneous chemical precipitation in modified activated sludge systems exhibiting biological excess phosphate removal Part 1: Literature review. Water SA, 26(4), 39-452.
  9. El Samrani, A.G., Lartige, B.S., Ghanbaja, J., Yvon, J., Kohler, A., (2004) Trace element carriers in combined sewer during dry and wet weather: an electron microscope investigation. Water Res., 38, 2063-2076. https://doi.org/10.1016/j.watres.2004.01.029
  10. El Samrani1, A.G., Lartiges, B.S., Villie'ras F. (2008) Chemical coagulation of combined sewer overflow:Heavy metal removal and treatment optimization. Water Res., 42(4/5), pp. 951-960s. https://doi.org/10.1016/j.watres.2007.09.009
  11. Geiger, W. F. (1998) Combined sewer overflow treatment: Knowledge or speculation, Water Sci. Technol., 38, 1-8.
  12. Gruber, G., Winkler, S., Pressl, A. (2005) Continuous monitoring in sewer networks: an approach for quantification for pollution loads from CSO's into surface water bodies. Water Sci. Technol., 52(12), 215-223.
  13. Harper, T., Reznilo,v B., Rosenberg A. (1997) Phosphorus removal using PACl coagulants. World Water Environ. Eng., 30(6), 10−25.
  14. Koohestanian, A., Hosseini, M., Abbasian, Z. (2008) The Separation Method for Removing of Colloidal Particles from Raw Water. American-Eurasian J. Agric. Environ. Sci., 4(2), 266-273.
  15. Metcalf and Eddy Inc. (2003) Wastewater Engineering Treatment and Reuse, McGraw-Hill, New York.
  16. Nascimento, N.O., Ellis, J.-B., Baptista, M.B., Deutsch, J.-C. (1999) Using detention basins: operational experience and lessons. Urban Water, 1, 113-124. https://doi.org/10.1016/S1462-0758(00)00009-1
  17. Plum, V., Dahl, C.P., Bentsen, L., Petersen, C.R., Napstjert, L., Thomsen, N.B. (1998) The Actiflo method. Water Sci. Technol., 37(1), 269-275.
  18. Szabo, A., 1, Takacs, I., Murthy, S., Daigger, G. T., Licsko, I., Smith, S. (2008) Significance of Design and Operational Variables in Chemical Phosphorus Removal. Water Environ. Res., 80(5), 408-416.

Cited by

  1. Studies on the Flocculation of Algae with Metal Ions vol.37, pp.8, 2015, https://doi.org/10.4491/KSEE.2015.37.8.441