Feasibility study on magnetic enhanced flocculation for mitigating membrane fouling

被引：27

作者：

Wang, Jie ^{[1
,2
]}

Yang, Jun ^{[2
]}

Zhang, Hongwei ^{[1
]}

Guo, Wenshan ^{[3
]}

Ngo, Huu-Hao ^{[3
]}

机构：

[1] Tianjin Polytech Univ, State Key Lab Hollow Fiber Membrane Mat & Proc, Tianjin 300387, Peoples R China

[2] Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin 300387, Peoples R China

[3] Univ Technol Sydney, Ctr Technol Water & Wastewater, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2015年 / 26卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Drinking water treatment; Membrane filtration; Magnetic enhance flocculation; Membrane fouling; CROSS-FLOW MICROFILTRATION; STREAMING POTENTIAL MEASUREMENTS; SURFACE-WATER MICROFILTRATION; NATURAL ORGANIC-MATTER; ELECTROCOAGULATION PRETREATMENT; ULTRAFILTRATION MEMBRANE; COAGULATION; REMOVAL; APPLICABILITY; ADSORPTION;

D O I：

10.1016/j.jiec.2014.11.038

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

During coagulation/flocculation-membrane filtration (CF-MF) process, membrane fouling was alleviated more significantly through magnetic enhanced flocculation-membrane filtration (MEF-MF) in the presence of ferromagnetic seeds in coagulants. Porous cake layer with flocs of large size was able to alleviate decline rate of membrane flux. Foulant analysis proved that magnetic enhanced flocculation (MEF) pretreatment was more efficient for the reductions of low and mid-molecular weight (MW) organic structures than CF-MF. Biopolymers with high molecular weight were also effectively removed before filtration. Overall, MEF-MF could provide a novel alternative approach to mitigate membrane fouling for surface water treatment. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：37 / 45

页数：9

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