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Fouling characteristics of forward osmosis membrane and recent development of antifouling forward osmosis membrane
Authors: WANG Tao, WANG Ning, LU Jinren, WANG Zhining, HU Yunxia
Units: 1. The Research Center for Coastal Environmental Engineering and Technology of Shandong Province, CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Science, Yantai 264003, China; 2. Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China. 3. College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, China.
KeyWords: forward osmosis; membrane fouling; anti-fouling; surface modification; copolymers.
ClassificationCode:O631; TB34; TB43
year,volume(issue):pagination: 2017,37(1):125-132

 Forward osmosis (FO) is a new membrane technology with great potential applications because of its low-energy consumption, high water recovery and great rejection. However, the continuous water flux decline and the shorten membrane life, caused by membrane fouling, have limited the further development of forward osmosis. How to effectively improve the membrane antifouling performance has become an important research topic. In this review, fouling characteristics of FO membrane is summarized, and the research progress of antifouled FO membranes is discussed. From literature, it can conclude that membrane properties, membrane orientation, pollutants and operating conditions are most important parameters to affect the fouling formation and membrane cleaning. Thus the development of anti-fouling forward osmosis membrane is crucial to mitigate membrane fouling. Double-skinned membrane structure, membrane surface modification, and the chosen antifouling membrane materials, have been confirmed to be effective strategies for FO membrane fouling prevention. Finally, in this review, the examples of how to improve the antifouling performance of FO membranes are discussed in details, and the promising research directions are pointed out to improve the membrane properties and antifouling performance of FO membranes. 

国家自然科学基金委(No. 21476249),山东省科技发展计划(No. 2014GHY115021),和分离膜与膜过程国家重点实验室(天津工业大学)开放课题 (No. M1-201503)资助。

第一作者简介:王涛(1992-),男,山西省晋城市人,硕士生,研究方向为正渗透膜污染,E-mail: wangt329@163.com. *通讯作者, E-mail: yunxiahu@yic.ac.cn

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