Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/94154
Title: Microbial behaviors involved in cake fouling in membrane bioreactors under different solids retention times
Authors: Wu, Bing
Yi, Shan
Fane, Anthony Gordon
Keywords: DRNTU::Engineering::Environmental engineering::Water treatment
Issue Date: 2010
Source: Wu, B., Yi, S., & Fane, A. G. (2011). Microbial behaviors involved in cake fouling in membrane bioreactors under different solids retention times. Bioresource Technology, 102(3), 2511–2516.
Series/Report no.: Bioresource technology
Abstract: Biomass characteristics and membrane performances in the MBRs operated at a high flux of 30 L/m2 h under different SRTs (10, 30 days, and infinity) were monitored. Results showed that more serious cake-fouling happened in the SRT-infinity MBR, which correlated with the activated sludge characteristics such as smaller floc size and greater EPS amount. DGGE analysis indicated that the microbial community shifted in different ways under various SRTs, which also influenced EPS productions in the MBRs. Different microbial communities were developed on the membrane surfaces at various operating stages and SRTs. Possibly, the activated sludge characteristics (such as MLSS concentration, EPS properties) and hydrodynamic conditions influenced by the SRTs were associated with cake layer development and membrane fouling propensity. Insight into the EPS characteristics and deposition behaviors of bacterial flocs will be crucial to explore appropriate biofouling control strategies in MBRs.
URI: https://hdl.handle.net/10356/94154
http://hdl.handle.net/10220/7195
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2010.11.045
Research Centres: Singapore Membrane Technology Centre 
Rights: © 2011 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Bioresource technology, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1016/j.biortech.2010.11.045 ]
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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