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Cho, Jaeweon
OWIELAB(Organic-Water Interface Engineering Laboratory)
Research Interests
  • Convergence of Science and Arts, Feces Standard Money (FSM), Water & Energy

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Fouling characteristics of a membrane bioreactor and nanofiltration hybrid system for municipal wastewater reclamation

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Title
Fouling characteristics of a membrane bioreactor and nanofiltration hybrid system for municipal wastewater reclamation
Author
Chon, KangminCho, JaeweonShon, Ho Kyong
Keywords
Effluent organic matter; Fouling characteristics; Membrane bioreactor; Nanofiltration; Municipal wastewater reclamation
Issue Date
2013-02
Publisher
ELSEVIER SCI LTD
Citation
BIORESOURCE TECHNOLOGY, v.130, no., pp.239 - 247
Abstract
A laboratory-scale membrane bioreactor (MBR) and nanofiltration (NF) hybrid system has been built to investigate effects of changes in characteristics of effluent organic matter by the MBR on fouling characteristics of the NF membranes. Large amounts of polysaccharide-like substances with small molecular weight and strong fluorescence intensity at the excitation wavelength of 230 nm and the emission wavelength of 420 nm were produced by microbial growth in the MBR. These substances had a great influence on fouling formation of the NF membranes. Fouling characteristics of the MBR were governed by both hydrophobic and hydrophilic fractions while hydrophilic fractions were found as major constituents of the desorbed NF membrane foulants. Flux decline rates of the NF membranes were closely associated with differences in their fouling layer compositions, meaning that performances of the NF membranes (i.e., flux decline) could be influenced by the membrane characteristics (i.e., surface zeta potential and contact angle). (C) 2012 Elsevier Ltd. All rights reserved
URI
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DOI
10.1016/j.biortech.2012.12.007
ISSN
0960-8524
Appears in Collections:
UEE_Journal Papers
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