正渗透膜在水处理应用中的研究进展  

Research Progress of the Application of Forward Osmosis Membrane in Water Treatment

作　　者：韦希[1] 周雪飞[1] 褚华强[1] 

机构地区：[1]同济大学,污染控制与资源化国家重点实验室,上海200092

出　　处：《水处理技术》2016年第3期13-19,共7页Technology of Water Treatment

基　　金：国家科技支撑计划课题(2012BAJ25B04)

摘　　要：叙述了正渗透(FO)技术的基本原理以及汲取液种类、膜污染和浓差极化现象对FO过程性能的影响,回顾了FO膜及其在水处理应用中的发展情况,旨在为FO技术的进一步发展提供理论基础和参考作用。介绍了3种FO膜制备的主要方法,分别是相转化法、界面聚合法和化学修饰,每种方法因原理不同而各具优势。认为FO技术以其能耗低、污染轻等优势具有良好的应用前景,其未来的发展需要从实验研究向实际应用转化,而性能优良的FO膜的制备、汲取液的选择和分离仍是FO技术研究与应用的关键核心问题。A review of the basic principles of forward osmosis（FO）process and effects of different types of draw solution, membrane fouling and concentration polarization on FO process were proposed. Development of FO membrane and its applications in water treatment were reviewed. This review intends to provide theoretical basis and useful reference for the further development of FO technology. Three methods of FO membrane preparation were introduced, which were phase inversion, interfacial polymerization and chemical modification. These methods had different advantages because of different principles. FO technology had advantages of low energy consumption, light membrane fouling, etc., which brought it a promising application prospect. The future development should be transferred from experiment research to practical application. Preparation of high-performance membrane and selection as well as separation of draw solution was still the key problems in the study and application of FO technology.

关 键 词：正渗透 膜材料 影响因素 水处理 

分 类 号：TQ028.8[化学工程]