| 膜堵塞机理研究与膜阻力测定 |
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| 引用本文： | 封莉,张立秋,马放,王宝贞.膜堵塞机理研究与膜阻力测定[J].环境工程,2002,20(3):75-77. |
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| 作者姓名： | 封莉 张立秋 马放 王宝贞 |
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| 作者单位： | 哈尔滨工业大学市政环境工程学院,哈尔滨,150001 |
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| 基金项目： | 哈尔滨工业大学校基金资助项目 (HIT .2 0 0 0 .2 7) |
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| 摘 要： | 对膜污染堵塞机理进行了深入的研究 ,提出了膜内部的生物堵塞机理 ,指出膜表面的浓差极化、膜表面与膜孔内的污染、膜内部的生物堵塞是造成膜通量下降的主要原因。同时对膜阻力进行了测定 ,得出实验所用超滤膜组件的自身阻力Rm 为 5 4 4× 10 1 2 m- 1 ,膜污染产生的总阻力RZ 为 19 88× 10 1 2 m- 1 ,RZ 约是Rm 的 3 6倍 ,是导致膜通量下降的主要因素。
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| 关 键 词： | 膜生物反应器 膜堵塞机理 生物堵塞 膜阻力 |
STUDY ON MEMBRANE FOULING MECHANISMS AND MEASURING OF MEMBRANE RESISTANCE |
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| Feng Li et al.STUDY ON MEMBRANE FOULING MECHANISMS AND MEASURING OF MEMBRANE RESISTANCE[J].Environmental Engineering,2002,20(3):75-77. |
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| Authors: | Feng Li |
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| Institution: | Feng Li et al |
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| Abstract: | This paper studies thoroughly the mechanisms of membrane fouling, puts forward the mechanism of bio fouling produced in internal fibrous wall and reaches the conclusion:concentration polarization,contamination on the surface and in the fenestra and bio fouling are the main reasons which cause the decrease of membrane flux.Meanwhile,membrane resistance is measured:resistance of membrane module itself is 5 44×10 12 m -1 and the total resistance produced by membrane fouling is 19 88×10 12 m -1 .The value of R Z is about 3 6 times that of R m ,so it is the major factor to decrease membrane flux. |
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| Keywords: | membrane bio reactor mechanisms of membrane fouling bio fouling and membrane resistance |
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