| 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 |
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Abstract: |
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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. |
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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 |
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Reference: |
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(1)Yoshihito Osada, Tsutomu Nakagawa. Membrane science and Technology, M. Dekker, New York, 1992,289. |
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