Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Effect of Coagulation Condition on Coagulation/Ultrafiltration Membrane Process

응집·한외여과 공정에서 응집조건 결정에 관한 연구

  • Moon, Seong-Yong (Water Environment and Remediation Center, Korea Institute of Science and Technology) ;
  • Lee, Sang-Hyup (Water Environment and Remediation Center, Korea Institute of Science and Technology) ;
  • Kim, Seung-Hyun (Department of Civil Engineering, Kyungnam University) ;
  • Moon, Byung-Hyun (Department of Environment Engineering, Changwon University)
  • 문성용 (한국과학기술연구원 수질환경 및 복원연구센터) ;
  • 이상협 (한국과학기술연구원 수질환경 및 복원연구센터) ;
  • 김승현 (경남대학교 토목공학과) ;
  • 문병현 (창원대학교 환경공학과)
  • Received : 2005.03.31
  • Accepted : 2005.05.12
  • Published : 2005.07.30
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Abstract

In this research, coagulation was employed as the pretreatment for membrane process. The effective coagulation conditions were decided after the discussion of different coagulant doses and mixing conditions, etc. Raw water was taken from Nakdong River. The best operation occurred when G value was $230s^{-1}$ and the slow mixing lasted around 5 minutes at G value was $23s^{-1}$. To investigate the optimum coagulant dosage, the optimum organics removal was target as organic removal reduces membrane fouling effectively than particle removal. This result indicated that organics are more important causes than turbidity for membrane fouling. However, turbidity becomes an important factor after certain amount of organic matters is removed.

Keywords

References

  1. 강임석, 정철우, 한승우, 막의 재질에 따른 유기물질 성상별 흡착 특성, 대한환경공학회, 24(8). pp. 1339-1348 (2002)
  2. 권은미, 유명진, UF를 이용한 용존성 유기물질 제거시 운전조건이 파울리에 미치는 영향, 대한환경공학회지, 22(7), pp. 1183-1191 (2000)
  3. 김미숙, 정영륜, 서의훈, 송원섭, 낙동강 부영양화와 수질환경요인의 통계적 분석, 한국조류학회지, 17(2), pp. 105-115 (2002)
  4. 문병현, 김승현, 이향인, 응집 현상에 따른 오염물질 제거 및 입자 형태 특성: Alum을 사용한 경우, 대한환경공학회지, 22(7), pp. 1263-1271 (2000)
  5. Jimbo, 막: 정수처리 공정의 새로운 전환, 한국물환경학회 물환경-막분리기술 심포지움, 서울, pp. 81-87 (2003)
  6. 황덕홍, 김동윤, 낙동강 수계에 대한 정수처리공정에서 응집공정의 DOC 제거특성, 상하수도학회지, 13(2), pp. 66-73 (1999)
  7. Carroll, T., King, S., Gary, S. R., Bolto, B. A. and Booker, N. A., The Fouling of Microfiltration Membranes by NOM after Coagulation Treatment, Water Research, 34(11), pp. 2861-2868 (1999) https://doi.org/10.1016/S0043-1354(00)00051-8
  8. APHA, AWWA, WPCF, Standard Method for the Examination of Water and Wastewater 20th Ed., Washington DC, USA (1998)
  9. Collins, M. R., Amy, G. L. and King, P. H., Removal of Organic Matter in Water Treatment, ASCE National Conference on Environmental Eng., Boston, July 1-3, pp. 850-864 (1985)
  10. Edzwald, J. K. and Benschoten, J. E., Aluminum Coagulation of Natural Organic Matter, Chemical water of wastewater treatment, Springer-Verlag, Berlin, pp. 341-359 (1990)
  11. Fan, L., Harris, J. L., Roddick, F.A. and Brooker, N. C., Influence of the Characteristics of Natural Organic Matter on the Fouling of Microfiltration Membrane, Water Research, 35(18), pp. 4455-4463 (2001) https://doi.org/10.1016/S0043-1354(01)00183-X
  12. Krasner, S. W. and Amy, G., Jar-test Evaluation of Enhanced Coagulation, J. AWWA, 87(10), pp. 93-107 (1995)
  13. Lin, C. F., Huang, Y. J. and Hao, O. J., Ultrafiltration processes for Removing Humic Substances, Water Research, 33(5), pp. 1252-1264 (1999) https://doi.org/10.1016/S0043-1354(98)00322-4
  14. Mallevialle, J., Odendaal, P. E. and Wiesner, M. R., Water Treatment Membrane Processes, McGraw-Hill, chapter 4, 16 (1996)
  15. Mulder, M., Basic Principles of Membrane Technology, KLUWER ACAD-EMIC PUBLISHERS, chapter 2-4 (1996)
  16. US EPA, Enhanced Coagulation and Enhanced Precipitative Softening Guidance Manual, EPA 815-R-99-012, chapter 2 (1999)