| 胞外聚合物EPS对MBR膜污染的影响 |
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| 引用本文： | 李绍峰,崔崇威,黄君礼.胞外聚合物EPS对MBR膜污染的影响[J].哈尔滨工业大学学报,2007,39(2):266-269. |
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| 作者姓名： | 李绍峰 崔崇威 黄君礼 |
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| 作者单位： | 1. 哈尔滨工业大学,环保科技有限公司博士后工作站,哈尔滨,150001;深圳职业技术学院,建工系,广东,深圳,518055
2. 哈尔滨工业大学,市政环境工程学院,哈尔滨,150090 |
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| 基金项目： | 广东省自然科学基金资助项目(04KJD013);;深圳市科技局资助项目(03KJD036) |
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| 摘 要： | EPS普遍存在于活性污泥絮体内部及表面,在细胞之间构成一种架桥作用,细胞通过这些胞外物质进行物质和能量的传递,具有重要的生理功能.MBR膜通量下降主要来自污泥而非上清液中的胶体和溶解性有机物;EPS浓度和组成影响污泥混合液疏水性、Zeta电位、黏度、粒径等物理、化学特性和菌胶团的生物活性,且与膜污染程度相关关系良好;通过操作条件的调整可以改变EPS的组成和含量,在保证污泥系统正常运行的同时维持良好的膜通量.
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| 关 键 词： | 胞外聚合物 膜生物反应器 膜污染 污泥特性 |
| 文章编号： | 0367-6234(2007)02-0266-04 |
| 修稿时间： | 2005-08-26 |
Effect of extracellular polymeric substances on membrane fouling of membrane bioreactor |
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| LI Shao-feng,CUI Chong-wei,HUANG Jun-li.Effect of extracellular polymeric substances on membrane fouling of membrane bioreactor[J].Journal of Harbin Institute of Technology,2007,39(2):266-269. |
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| Authors: | LI Shao-feng CUI Chong-wei HUANG Jun-li |
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| Affiliation: | 1.Research station for Postdoctoral Fellows;Environmental Technology Co.Ltd.;Harbin Institute of Technology;Harbin 150001;China;2.Department of Architecture Engineering;Shenzhen Polytechnic Institute;Shenzhen 518055;3.Harbin Institute of Technology;School of Municipal and Environmental Engineering;Harbin 150090;China |
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| Abstract: | EPS,distributing widespread among in-or external microbial floc takes on important physiological role because it is indispensable in energy and substances transfer of cell in activated sludge system.The permeate flux declining is mainly due to the characteristic of sludge but not the colloid and solutes of supernatant.The physical,chemical and physiological property of sludge is affected by the components of EPS.Furthermore,the linear correlations between the EPS components and membrane fouling degree is fa... |
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| Keywords: | extracellular polymeric substances membrane bioreactor membrane fouling sludge property |
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