| 胞外聚合物对浸没式膜-生物反应器膜过滤性能的影响 |
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| 引用本文： | 王雪梅,刘燕,华志浩,郭国良.胞外聚合物对浸没式膜-生物反应器膜过滤性能的影响[J].环境科学学报,2005,25(12):1602-1607. |
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| 作者姓名： | 王雪梅 刘燕 华志浩 郭国良 |
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| 作者单位： | 复旦大学环境科学与工程系,上海,200433 |
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| 基金项目： | 国家自然科学基金资助项目（No.20377010） |
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| 摘 要： | 通过浸没式膜-生物反应器（SMBR）处理上海市城市内河水的试验,研究了反应器混合液中和2种疏水性不同的膜上污泥胞外聚合物（EPS）的量、组成、污泥特性及对膜过滤性能的影响.结果表明,混合液污泥中的溶解性EPS和固着性EPS比膜上污泥多,不同污泥的固着性EPS组分中蛋白质（EPSP）/多糖（EPSC）的大小顺序依次为混合液污泥〈亲水膜污泥〈疏水膜污泥.疏水膜污泥中溶解性EPS比亲水膜多,溶解性EPS和固着性EPS量及组分均有很大差异.混合液污泥的EPS流动性大,疏水性膜上污泥EPS的流动性较大.溶解性EPS对污泥特性及膜过滤性能影响较大.SMBR中亲、疏水性膜片上黏附的污泥的相对疏水性分别为53%、59%.比较2种膜片通量的变化发现,疏水性膜污染严重.
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| 关 键 词： | 浸没式膜-生物反应器 胞外聚合物 膜污染 亲水性膜 疏水性膜 |
| 文章编号： | 0253-2468(2005)12-1602-06 |
| 收稿时间： | 04 12 2005 12:00AM |
| 修稿时间： | 08 28 2005 12:00AM |
Effect of extracellular polymeric substances in SMBR on membrane filtration |
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| WANG Xuemei,LIU Yan,HUA Zhihao and GUO Guoliang.Effect of extracellular polymeric substances in SMBR on membrane filtration[J].Acta Scientiae Circumstantiae,2005,25(12):1602-1607. |
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| Authors: | WANG Xuemei LIU Yan HUA Zhihao and GUO Guoliang |
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| Institution: | Department of Environmental Science and Engineering, Fudan University, Shanghai 200433 |
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| Abstract: | This paper investigated the amount and composition of extracellular polymeric substances (EPS) in activated sludge from mixed liquor as well as those in sludges from a hydrophilic and a hydrophobic membrane, respectively, in a Submerged membrane bioreactor (SMBR) treating river water in Shanghai, and analyzed the characteristics of these sludges. The effect of EPS and sludge hydrophobicity on filtration of membrane was studied. The experiment results showed that total amount of EPS in sludge from mixed liquor was more than those from membrane surface, and the ratio of EPS_P/EPS_C ranked mixed liquor
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| Keywords: | submerged membrane bioreactor(SMBR) extracellular polymeric substances(EPS) membrane fouling hydrophilic membrane hydrophobic membrane |
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