지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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This study is to investigate permeability resistance and recovery rate by physical and chemical cleaning of hydrophilic polyethylene membrane, to recognize the main cause of membrane fouling in MBR (membrane bioreactor). As a result of calibration curve for protein and carbohydrate, high NaOCl concentration has an effect on the protein calibration curve, because detergent obstructs the detection of protein, hence 0.05% NaOCl is appropriate for accurately measuring the protein and carbohydrate. Fouled resistance(Rf) of membrane was high as initial resistance(Ri) of uncontaminated membrane was high. Recovery rate by physical and chemical cleaning decreased as membrane submergence proceeded due to the serious adsorption. The majority of protein was removed by chemical cleaning and most of carbohydrate broke off by rinsing, thus, we found that protein is the main substance featuring an serious fouling on a membrane surface.
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