Effects of magnetic ion exchange pretreatment on low pressure membrane filtration of natural surface water

被引：45

作者：

Huang, Haiou ^{[1
]}

Cho, Hyun-Hee ^{[2
]}

Schwab, Kellogg J. ^{[1
]}

Jacangelo, Joseph G. ^{[1
,3
]}

机构：

[1] Johns Hopkins Bloomberg Sch Publ Hlth, Baltimore, MD 21205 USA

[2] Hanyang Univ, Dept Civil & Environm Engn, Seoul 133791, South Korea

[3] MWH Global, Lovettsville, VA 20180 USA

来源：

WATER RESEARCH | 2012年 / 46卷 / 17期

关键词：

Magnetic ion exchange; Low pressure membrane filtration; Feedwater pretreatment; Surface water; Natural organic matter; REMOVAL; NOM; PERFORMANCE; MF;

D O I：

10.1016/j.watres.2012.07.003

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Magnetic ion exchange (MIEX) pretreatment has been increasingly employed by water treatment plants for removal of dissolved organic carbon (DOC). In this study, the effects of MIEX pretreatment on low pressure membrane filtration of natural surface water were investigated under different feedwater qualities, membrane properties, and MIEX dosing conditions. Regardless of feedwater DOC, moderate decrease in the total and hydraulically irreversible fouling was observed for a polyvinylidene fluoride (PVDF) microfiltration membrane and a polyethersulfone ultrafiltration (UF) membrane after MIEX pretreatment, which was coincident with moderate removals of high molecular weight DOC in the feedwaters. Comparatively, the fouling of a PVDF UF membrane did not decrease after MIEX pretreatment, revealing the impact of membrane properties on membrane fouling in the presence of MIEX pretreatment. Reuse of virgin or regenerated MIEX resulted in similar membrane fouling as observed with single use of the virgin MIEX. The level of DOC removal by MIEX was similar to the removal of MS2 bacteriophage spiked in the feedwater, suggesting a potential similarity in the removal of organic and microbial particles. In conclusion, MIEX pretreatment was effective for DOC removal, but less effective in controlling short-term membrane fouling or removing viruses. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：5483 / 5490

页数：8

共 26 条

[1]

[Anonymous], 2001, LOW PRESS MEMBR FILT

[2] Bench-scale testing of a magnetic ion exchange resin. for removal of disinfection by-product precursors [J].

Boyer, TH ;

Singer, PC .

WATER RESEARCH, 2005, 39 (07) :1265-1276

[3] A pilot-scale evaluation of magnetic ion exchange treatment for removal of natural organic material and inorganic anions [J].

Boyer, Treavor H. ;

Singer, Philip C. .

WATER RESEARCH, 2006, 40 (15) :2865-2876

[4] Extending membrane longevity by using MIEX as a pre-treatment [J].

Dixon, M. B. ;

Morran, J. Y. ;

Drikas, M. .

JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA, 2010, 59 (2-3) :92-99

[5] Long term case study of MIEX pre-treatment in drinking water; understanding NOM removal [J].

Drikas, Mary ;

Dixon, Mike ;

Morran, Jim .

WATER RESEARCH, 2011, 45 (04) :1539-1548

[6] Pre-treatments to reduce fouling of low pressure micro-filtration (MF) membranes [J].

Fabris, Rolando ;

Lee, Eun Kyung ;

Chow, Christopher W. K. ;

Chen, Vicki ;

Drikas, Mary .

JOURNAL OF MEMBRANE SCIENCE, 2007, 289 (1-2) :231-240

[7]

Furukawa D., 2008, A Global Perspective of Low Pressure Membranes

[8] Effect of coagulation on the size of MF and UF membrane foulants [J].

Howe, Kerry J. ;

Marwah, Ashish ;

Chiu, Kuang-Ping ;

Adham, Samer S. .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2006, 40 (24) :7908-7913

[9] Fouling of microfiltration and ultrafiltration membranes by natural waters [J].

Howe, KJ ;

Clark, MM .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2002, 36 (16) :3571-3576

[10] Pretreatment for Low Pressure Membranes in Water Treatment: A Review [J].

Huang, Haioo ;

Schwab, Kellogg ;

Jacangelo, Joseph G. .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (09) :3011-3019

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