| 两级序批式反应器运行模式下平板膜污染机理研究 |
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| 引用本文： | 元新艳,沈恒根,王琳,孙磊,李世峰.两级序批式反应器运行模式下平板膜污染机理研究[J].中国环境科学,2010,30(2):186-191. |
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| 作者姓名： | 元新艳 沈恒根 王琳 孙磊 李世峰 |
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| 作者单位： | 1. 东华大学环境科学与工程学院,上海,200051
2. 中国海洋大学环境科学与工程学院,山东,青岛,266003 |
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| 基金项目： | 上海市重点学科资助项目 |
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| 摘 要： | 从膜污染物分析、微生物代谢产物EPS、SMP对膜污染的影响等方面,对两级序批式反应器运行模式下的平板膜污染机理进行了试验研究.结果表明,膜表面及膜孔内部存在以球菌、杆菌为主的生物污染,膜表面的无机污染物主要是Fe、Na、Zr、Rb、Ca等化合物在浓差极化的作用下超过其溶解度极限后结晶形成的盐垢,膜表面的有机污染物主要是蛋白质,是形成膜表面凝胶层的主要原因,而蛋白质在膜面为伴随有电子转移的化学吸附,从而引起膜通量严重下降.
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| 关 键 词： | 两级序批式MBR 膜污染物 EPS SMP 蛋白质 |
| 收稿时间： | 2009-06-16; |
Fouling mechanism of flat-sheet membrane on the mode of two-stage sequence batch operation |
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| YUAN Xin-yan,SHEN Heng-gen,WANG Lin,SUN Lei,LI Shi-feng.Fouling mechanism of flat-sheet membrane on the mode of two-stage sequence batch operation[J].China Environmental Science,2010,30(2):186-191. |
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| Authors: | YUAN Xin-yan SHEN Heng-gen WANG Lin SUN Lei LI Shi-feng |
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| Institution: | YUAN Xin-yan1,SHEN Heng-gen1,WANG Lin2,SUN Lei2,LI Shi-feng2(1.College of Environmental Science , Engineering,Donghua University,Shanghai 200051,China,2.College of Environmental Science , Engineering,Ocean University of China,Qingdao 266003,China) |
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| Abstract: | The fouling mechanism of flat-sheet membrane on the mode of two-stage sequence batch operation has been investigated by analysis of surface contaminants and extracellular polymeric substances(EPS) and soluble microbial products(SMP) in the sludge.The influences of microorganism metabolism products including EPS and SMP on the membrane fouling were discussed.It was found that the membrane surfaces and inner pores were mainly fouled by spherical and rod-shaped bacteria.Examinations by SEM/EDS revealed that th... |
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| Keywords: | EPS SMP two-stage sequencing batch MBR membrane fouling: extracellular polymeric substances (EPS) soluble microbial products (SMP) protein |
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