多孔膜的污染及其控制方法

Fouling and fouling-control of porous membranes

针对膜污染这一制约膜工业化应用的重要因素,从膜材料特性和分离液构成对膜污染的影响、膜污染机理及模型、膜污染的防治策略等几个方面,介绍了近几年来国内外学者对超滤、微滤膜污染问题的一些研究结果;并对减少或防止膜污染的方法进行归纳,具体评价了原料液预处理、膜表面改性、操作条件优化及化学清洗对减轻多孔膜污染的效果.

In accordance with membrane fouling being one of important factors which limit the membrane industrial applying, some recent research results about the fouling of ultrafiltration and microfiltration are introduced which are on membrane materials, composing of seperating liquid, fouling mechanisms, prevention and control means. Some methods for alleviation and prevetion of membrane fouling are introduced, At the same time, the effects of liquid pretreatment, membrane surface modification, optimizing operations and chemical cleaning are concretely evaluated.