超滤过程膜污染控制技术研究进展.pdfVIP

　Feb. 2002 现代化工 第 22 卷第 2 期 ·18 · Modern Chemical Industry 2002 年 2 月 超滤过程膜污染控制技术研究进展 1 2 邱运仁 　张启修 ( 1. 中南大学化学化工学院 ,长沙 410083 ; 2. 中南大学冶金分离科学与工程重点实验室 ,长沙 410083) 摘要 :探讨了超滤过程中的浓差极化和膜污染形成的机理以及影响膜污染的因素 ,综述了预防和控制膜污染的各种技术 , 包括膜材及孔径的选择、膜组件的设计、原料的预处理、膜过程的强化及膜的清洗等技术。指出开发新型实用的耐污染膜和能 耗少、寿命长、抗污染的膜组件 ,对膜过程工艺进行优化控制 ,开发高效的在线清洗技术和经济便利的离线清洗技术等是尚待攻 克的课题。 关键词 :超滤 ;浓差极化 ;膜污染 ;控制 ;清洗 中图分类号:TQ028. 8 　 文献标识码 :A Research progress in membrane fouling control in ultrafiltration 1 2 QIU Yunren , ZHANG Qixiu ( 1. College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , China ; ) 2. Key Lab of Metallurgical Separation Science and Technology ,Central South University , Changsha 410083 , China Abstract : Mechanisms and various factors that affect concentration polarization and membrane fouling in ultrafiltration were discussed. Technologies for membrane fouling prevention and control including the selection of membrane materials and pore diameters ,the design of modules ,the pretreatment of feedstock ,the reinforcing of membrane process and the cleaning of membrane were reviewed. It was pointed out that novel and practical antifouling membrane materials ,antifouling modules with low energy consumption and long service life ,optimum control of operations , highefficien