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논문 기본 정보

자료유형
학술저널
저자정보
김정현 (한국수자원공사 수자원연구원) 배철호 (한국수자원공사 수자원연구원) 김충환 (한국수자원공사 수자원연구원) 박노석 (한국수자원공사 수자원연구원) 이선주 (한국수자원공사 수자원연구원) 안효원 (한국수자원공사 수자원연구원) 허현철 (효림산업[주])
저널정보
대한상하수도학회 상하수도학회지 상하수도학회지 제19권 제2호
발행연도
2005.1
수록면
135 - 143 (9page)

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초록· 키워드

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It was evaluated that the effect of turbidity removal by Pore Controllable Fiber Filter(PCF) installed in NS(Naksang) small water treatmant plant(system) using under flow water as raw water in the study. The results of the study are as the followings. Firstly, the removal efficiency of turbidity by PCF without coagulation(in operation mode not using coagulants) was mostly below 20 percent. On the other hand, when operation using proper coagulants, that of turbidity was mostly over 80 percent. Secondly, slow sand filtration after PCF, total turbidity removal efficiency of final treated water was 84.3 percent, and the contribution by PCF was 57.1 percent and that of slow sand filtration was 27.7 percent. Therefore the introduction of PCF as pre-treatment process would be helpful to reduce the loading of high turbidity of slow sand filtration. Thirdly, the results of particle counter measurements showed that when operated PCF with coagulants, fine flocs captured or adsorbed at the pore of PCF were flow out into the effluents from 120 minutes after backwashing because of the increase of headloss of PCF. Therefore the decision of backwashing time should made consideration into the outflow of fine flocs from PCF. Fourth, coagulant dosages on PCF at the same turbidity was largely variable because of the effect of the raw water characteristics and the turbidity increase velocity at rainy days, therefore flexible coagulant dosages should be considered rather than fixed coagulant dosage by the influent jar-test result.

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