膜科学与技术

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Progress on forward osmosis membrane and drawing agent

Authors： LI Gang1, LI XueMei2, HE Tao2*, JIANG Biao2, Congjie Gao1

Units： 1 College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China；2 Shanghai Advanced Research Institute，Chinese Academy of Sciences, Shanghai 201203 , China

KeyWords： forward osmosis, concentration polarization, drawing solution, membrane material

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2012,32(2):104-106

Abstract：

The recent progress in the forward osmosis membrane and drawing agents is reported. A quasi double-skin CTA FO membrane was prepared which showed improved FO performance as compared to commercial HTI membrane. On the development of draw agents, we have investigated the bulky draw solutes. It appeared that bulky draw solutes, including ethylene diamine tetra-acetic acid (EDTA), dendrimers and stimuli-responsive nanoparticles, showed improved draw efficiency, which confirmed that bulky molecules can effectively reduce internal concentration polarization. The results indicated that both FO membrane and draw agent are important for the improvement in the FO processes.

Funds：

国家重大基础研究973项目 (No. 2009CB623402, 2012CB720903 ),自然科学基金项目(20976083, 21176119).

AuthorIntro：

李刚(1982-)，男，扬州市人，博士，中国海洋大学，膜法水处理。*通讯联系人： mail: het@sari.ac.cn

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