CIESC Journal

• 化工学报 • 上一篇    下一篇

膜污染过程的电动电位(ζ-电位)特性分析

王瑾,刘铮,何清华,罗坚,袁乃驹   

  1. 清华大学化学工程系!北京100084,清华大学化学工程系!北京100084,清华大学化学工程系!北京100084,清华大学化学工程系!北京100084,清华大学化学工程系!北京100084
  • 出版日期:1999-10-25 发布日期:1999-10-25

CHARACTERIZATION OF MEMBRANE FOULING PROCESS BY ζ-POTENTIAL

Wang Jin, Liu Zheng, He Qinghua, Luo Jian and Yuan Naiju( Department of Chemical Engineering, Tsinghua University, Beijing 100084)   

  • Online:1999-10-25 Published:1999-10-25

摘要: <正>对于膜污染机理及其解决方法的研究是膜分离技术研究领域中的一个重点问题.已有的研究主要从膜的材料特性、待分离体系的物化特性及操作方式与条件等3个方面来考察膜污

Abstract: A new method for determining ζ- potential of membrane in solution was developed on the basis of measuring electroosmosis flux in an alternating electric field. This method was effective in dealing with the concentration polarization that occurred during the measurement. The function of polyethylene gly-col 4000 to shield the interaction between microfiltration membranes and protein was examined at different pH of the solution. It was shown that ζ- potential could serve as an index of membrane fouling and be used in the study of the nature of membrane fouling.

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