A Study on the Potable Water Purification System with Pre-Ozone and Ultra Filtration Membrane of Hollow Fiber Type

전오존과 중공사형 한외여과막을 이용한 간이정수처리시스템에 관한 연구

  • Kim, Min-Kuk (Environmental Facilities Management Corporation) ;
  • Chun, Yang-Kun (Environmental Facilities Management Corporation)
  • Received : 2004.12.17
  • Accepted : 2005.01.17
  • Published : 2005.03.30

Abstract

The objective of this study is to evaluate the possibility to apply pre-ozone and membrane system for drinking water. This system is improved in fouling control by pre-ozone system. It is composed of ultrafiltration hollow fiber type membrane and ozone reactor. The result of this study is that the flux is increased about 10.7% and decreased in TMP by the pre-ozone. Also, backwashing pressure decreased about 18%. The optimum concentration of residual ozone is 0.3~0.5 ppm. During the period, the recovery ratio of this system was turned out to be 90% as the flowrate of effluent is $67.1m^3/day$. When the TMP and backwashing pressure was $0.85kg/cm^2$ and $1.10kg/cm^2$, this system was stable without sudden fouling. Finally, the quality of effluent is satisfied the guidelines for potable water quality such as turbidity, color, E.coli, Mn, Al, Fe and so on.

Keywords

Acknowledgement

Grant : 정수용 첨단막과 이를 이용한 간이정수처리시스템 개발

References

  1. 송양석, 고도정수처리를 위한 막여과 공법의 적용에 관한 연구, 전남대학교 박사학위논문 (2003)
  2. 오현제, 우리나라 실정에 적합한 고도정수처리기술의 개발과 활용, 한국건설기술연구원, p. 19 (1998)
  3. 형훈, 한외여과를 이용한 정수처리 공정에서 전오존처리가 막투과유속과 처리수 수질에 미치는 영향에 관한 연구, 서울대학교 석사학위논문 (1999)
  4. 환경부, 먹는물수질공정시험방법 (2002)
  5. 환경부, 현대화된 소규모 정수 시스템 개발.보급, 환경부 보도자료 (2003)
  6. Amy, G. L., Tan, L., Davis, M. K., The Effects of Ozonation and Activated Carbon Adsorption on Trihalomethane Speciation, Wat. Res., 25, p. 191 (1991)
  7. APHA, AWWA and WEF., Standard Methods for the Examination of Water and Wastewater, 20th edition, Washington D.C., USA (1998)
  8. Glaze, W. H., Drinking Water Treatment with Ozone, Environ. Sci. Tech., 21, p. 838 (1987)
  9. Ishizaki, K., Miura, K., Shnsiki, N., Effect of Ozone on Plasmid DNA of Escherichia coli. in Situ., Wat. Res., 21, p. 823 (1987)
  10. Prengle, H. W., Experimental Rate Constants and Reactor Considerations for the Destruction of Micropollutants and Trihalomethane Precusors by ozone with Ultraviolet Radiation, Environ. Sci. Tech., 17, p. 743 (1983)
  11. Killops, G. D., Volatile Ozonization Products of Aqueous Humic Material, Wat. Res., 20, p. 153 (1986)
  12. Randtke, S. J., Organic Contaminant Removal by Coagulation and Related Process Combinations, J. AWWA, 5, p. 40 (1988)
  13. Reckhow, D. A., Legube, B., Singer, P. C., The Ozonation Effects of Organic Halide Precursors: Effect of Bicarbonate, Wat. Res., 20, p. 987 (1986)