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논문 기본 정보

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학술저널
저자정보
이상정 ([주]태성종합기술) 주재영 (서울시립대학교) 배윤선 (서울시립대학교) 정인호 (서울시립대학교) 이해군 ([주]태성종합기술) 정창화 ([주]태성종합기술) 박철휘 (서울시립대학교)
저널정보
대한상하수도학회 상하수도학회지 상하수도학회지 제25권 제5호
발행연도
2011.1
수록면
681 - 689 (9page)

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Submerged membrane bio-reactor (SMBR) has several advantages such as high MLSS, long SRT, and low F/M ratio at wastewater treatment. So, this has widely applied over the world and many studies have been conducted. However, membrane fouling remains an inevitable problem. This study was investigated using bench-scale SMBR with three poeration modes. Raw waters were prepared by addition of starch, acetic and fibric acid to recovery water of zeolite. The efficiency of nitrification and COD were very stable as about 95% and 80%, respectively. And critical flux was 128.8L/$m^{2}$/hr. The result of biodegradability test was following values at the each mode : Ss+Xs/$C_{T}$=81.7%, 35.1% and 45.3%, $X_{I}+S_{I}/C_{T}=18.3%$, 64.9% and 54.7%. When particulate matters such as $X_{I}$ and $X_{S}$ in influent are increased, membrane fouling will take place more and more. A relative ratio of filtration resistance to the fouling occurred by the cake layer was increased when increased the portion of $X_{I}$ and polysaccharide. It was thought that the formation of cake layer was promoted due to bond between $X_{I}$ and vicid material s generated from the polysaccharide.

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