Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Application of Coagulation-UF Hybrid Membrane Process for Reuse of Secondary Effluent

하수 2차 처리수 재이용을 위한 hybrid 응집-UF 막분리 공정의 적용

  • 이철우 (부경대학교 환경공학과) ;
  • 손정기 (부경대학교 토목공학과) ;
  • 손인식 (부경대학교 토목공학과) ;
  • 한승우 (부산광역시의회 정책연구실) ;
  • 강임석 (부경대학교 환경공학과)
  • Received : 2005.07.08
  • Accepted : 2005.10.11
  • Published : 2005.10.15
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Abstract

The objective of this study was to evaluate the factors affecting the optimization of coagulation hybrid UF membrane processes for the reuse of secondary effluent from sewage treatment plant. The experimental results obtained from the UF membrane process showed that organic colloids in the size range of $0.2{\mu}m{\sim}1.0{\mu}m$ caused the most substantial influence on the fouling of UF membrane. When using a coagulation pretreatment to UF membrane, alum dosage of 50mg/L resulted in the least reduction in membrane permeate flux. Also, for the rapid mixing process, in-line mixer type was more efficient for organic removal than back mixer type. Therefore, it may be concluded that coagulation-UF hybrid membrane process comparing to UF alone process showed not only higher removal efficiency of organic matter, but also substantial improvement of permeate flux of UF membrane.

Keywords

Acknowledgement

Supported by : 부경대학교

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