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Pretreatment and Membrane Hydrophilic Modification to Reduce Membrane Fouling
State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
* Author to whom correspondence should be addressed.
Received: 20 June 2013; in revised form: 27 August 2013 / Accepted: 27 August 2013 / Published: 4 September 2013
Abstract: The application of low pressure membranes (microfiltration/ultrafiltration) has undergone accelerated development for drinking water production. However, the major obstacle encountered in its popularization is membrane fouling caused by natural organic matter (NOM). This paper firstly summarizes the two factors causing the organic membrane fouling, including molecular weight (MW) and hydrophilicity/hydrophobicity of NOM, and then presents a brief introduction of the methods which can prevent membrane fouling such as pretreatment of the feed water (e.g., coagulation, adsorption, and pre-oxidation) and membrane hydrophilic modification (e.g., plasma modification, irradiation grafting modification, surface coating modification, blend modification, etc.). Perspectives of further research are also discussed.
Keywords: pretreatment; NOM; membrane hydrophilic modification; membrane fouling; drinking water
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MDPI and ACS Style
Sun, W.; Liu, J.; Chu, H.; Dong, B. Pretreatment and Membrane Hydrophilic Modification to Reduce Membrane Fouling. Membranes 2013, 3, 226-241.
Sun W, Liu J, Chu H, Dong B. Pretreatment and Membrane Hydrophilic Modification to Reduce Membrane Fouling. Membranes. 2013; 3(3):226-241.
Sun, Wen; Liu, Junxia; Chu, Huaqiang; Dong, Bingzhi. 2013. "Pretreatment and Membrane Hydrophilic Modification to Reduce Membrane Fouling." Membranes 3, no. 3: 226-241.