Membrane Science and Technology

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Study on surface negative charged polyethersulfone microfiltration complex membrane

Authors： WANG Yong,HUA Yaozu，HUANG He,TANG Xiaobo

Units： State Key Labroatory of Plooution Control and Resourece Reuse Nanjing University,Nanjing 210012 China

KeyWords： poly(ether sulfone), microfiltration complex membrane, negative charged, antifouling membrane

ClassificationCode：TQ028.8, X703.1

year,volume(issue):pagination： 2013, 33(3):70-74

Abstract：

In this study, the negative charged membrane by coating an negative charged surface modifying macromolecules(SMM) layer on self-made poly(ether sulfone ) microfiltration membrane was prepared. The membranes prepared were subjected to SEM(Scanning electron microscope)、contact angle measurement and Zeta potential analysis. It was found the contact angle decreased as negative charged layer coated. The coating of surface modifying macromolecules on the poly(ether sulfone) membrane improved the hydrophilicity、negative-charged ability and anti-fouling ability. Fouling of two microfiltration membranes was investigated for the filtration of activated sludge with concentration of 6000~10000mg/L, the Rc values were 0.19×1011m-1 and 3.13×1011m-1 , Rp values were 1.36×1011m-1 and 4.24×1011m-1 respectively for negatived charged membrane and the original membrane. The complex membrane with negative charged surface，may be applied as antifouling polymer membrane in MBR(membrane bioreactor) for wastewater treatment.

Funds：

江苏省科技厅工业支撑计划项目BE2008127,江苏省环保科研项目201011

AuthorIntro：

王勇（1970～），男，福建邵武人，讲师，主要从事膜技术及废水处理应用研究。通讯地址：南京市栖霞区仙林大道163号，南京大学环境学院 210046联系方式:wangyong@nju.edu.cn

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