도시지역 초기 우수 오염물질 제거를 위한 스마트 필터 시스템 성능 평가 : Lab 규모 및 실규모 실험

초록

Urban stormwater runoff contains high concentrated contaminants such as various particulate and heavy metals. Among BMPs (Best Management Practices), filtration system has been proposed to treat stormwater with multiple contaminants. This paper discusses laboratory and pilot scale smart filter system, those use hydrophobic fiber ball as media, for treating urban storm water in Korea. Unlike the existing systems, this smart filter system can be operated for long period (four months) without replacement of the filter media through the back washing. From the results of experiments, periodic backwash made it possible to recover head loss and filtration rate to the initial level repeatedly. The filter system proved effective for the simultaneous removal of turbid particle, TSS, BOD, COD and heavy metals (Cu, Mn, Zn).

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