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Received January 27, 2004
Accepted April 16, 2004
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고분자 용액의 여과 특성
Filtering Characteristics of Polymer Solution
인하대학교 환경공학과, 402-701 인천시 남구 용현동 253
Department of Environmental Engineering, Inha University, 253, Yonghyun-dong, Nam-gu, Inchon 402-751, Korea
Korean Chemical Engineering Research, June 2004, 42(3), 304-310(7), NONE Epub 12 July 2004
Abstract
고분자 물질의 여과 특성을 알기 위해 분자량이 상당히 다른 세 가지 고분자 물질(polyethylene glycol, dextran 그리고 양이온 고분자 응집제)을 선정하여 여과-투과 실험장치로 케이크 여과를 수행하였다. 실험에 사용된 여과매체의 공극 직경은 각각 0.1 μm, 0.45 μm, 0.8 μm이었다. 이 여과-투과 실험 결과를 분석하여 작은 분자량 고분자인 polyethylene glycol의 여과매체 투과 현상, 어느 정도 큰 분자량의 고분자 물질인 dextran이 여과매체의 공극을 막는 현상 그리고 아주 큰 분자량인 양이온 고분자 응집제의 여과 특성들을 분석하여 확인할 수 있었다.
To know the filtration characteristics of the polymer suspensions, the cake filtration of polyethylene glycol, dextran and cationic polymer coagulant were performed by ‘filtration-permeation’ method. The pore diameter of the filter media utilized_x000D_
were 0.1 μm, 0.45 μm and 0.8 μm. By analyzing the experimental ‘filtration-permeation’ results, the permeation of polyethylene glycol - which has relatively small molecular weight - through the filter medium, the phenomenon of filter medium blocking by dextran which has larger molecular weight, and the cake filtration characteristics of polymer coagulant solution has been confirmed.
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