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학술저널
저자정보
문성용 (한국과학기술연구원 환경공정연구부 수질환경 및 복원연구센터) 이상협 (한국과학기술연구원 환경공정연구부 수질환경 및 복원연구센터) 김승현 (경남대학교 토목공학과) 윤조희 (경남대학교 에너지화학공학부)
저널정보
대한상하수도학회 상하수도학회지 상하수도학회지 제19권 제4호
발행연도
2005.1
수록면
429 - 436 (8page)

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A coagulation/ultrafiltration membrane hybrid system was operated to treat river water with capacity of $0.06m^3/d$. The impact on membrane fouling by flux and linear velocity was investigated. It is known that pressure increase is proportional to flux increase. However, pressure increase was much faster than theoretical value in the pilot plant test. So it was suggested that flux was on important factor in ultrafiltration of continuous operation. Membrane fouling was decreased when linear velocity was increased. This phenomenon was found more obviously without coagulation. With the combination of coagulation and sedimentation, membrane fouling was not reduced conspicuously. Big particles formed during coagulation and sedimentation were destroyed by feed and circulation pumping, which resulted in little effect on membrane fouling reduction. The degree of destruction was similar at various linear velocities. In this study, the hollow fiber membrane was used and the system was operated in pressure type module. In case of the system used in this study, membrane fouling has been affected lightly by linear velocity variation when coagulation pretreatment was applied.

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