| 超滤膜分离性能的影响因素研究 |
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| 引用本文： | 吴志超 王士芬. 超滤膜分离性能的影响因素研究[J]. 上海环境科学, 1999, 18(1): 22-25 |
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| 作者姓名： | 吴志超 王士芬 |
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| 作者单位： | 同济大学 上海200092(吴志超，王士芬)，同济大学 上海200092(高廷耀) |
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| 摘 要： | 以水通量，化学需氧量和细菌截留率为主要考核指标，考察了超滤膜分离性污泥混合液的影响因素，结果表明：ＰＥＳ膜适宜污水膜生物工艺使用：一定程度下，膜的截留分子量大，有利于水通量增加；膜的水通量随污泥浓度和滤纸过滤液ＣＯＤ浓度的提高面减少；滤纸过滤液ＣＯＤ浓度对膜水通量影响大于活性污泥浓度；截留分子量小的膜，水通量随压力的提高而上升。
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| 关 键 词： | 超滤膜 活性污泥混合液 膜生物法 化学需氧量 |
Study on Affecting Factors of Ultrafiltration Membrane Separation Character |
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| Wu Zhichao Wang Shifeng Gao Tingyao. Study on Affecting Factors of Ultrafiltration Membrane Separation Character[J]. Shanghai Environmental Science, 1999, 18(1): 22-25 |
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| Authors: | Wu Zhichao Wang Shifeng Gao Tingyao |
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| Abstract: | Taking water flux, COD and bacteria retention efficiency as examination indexes, to observe the affecting factors of ultrafiltration membrane separation to activated sludge. The result showed that the PES membrane was fit for sewage biological membrane technology; under certain conditions, retention of the membrane to higher molecular weight has advantage to increasing water flux; water flux of membrane decreased as the concentration of sludge and the concentration of COD filtrate through filter paper increased; effect of the concentration of COD filtrate through filter paper on water flux of membrane was higher than the concentration of activated sludge; retention of membrane to lower molecular weight whose water flux increased as the pressure increased. |
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| Keywords: | Ultrafiltration membrane Activated sludge Biological membrane Water flux Chemical oxygen demand |
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