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Microbial community developments and biomass characteristics in membrane bioreactors under different organic loadings

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Microbial community developments and biomass characteristics in membrane bioreactors under different organic loadings

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dc.contributor.author Wu, Bing
dc.contributor.author Yi, Shan
dc.contributor.author Fane, Anthony Gordon
dc.date.accessioned 2011-10-10T07:02:43Z
dc.date.available 2011-10-10T07:02:43Z
dc.date.copyright 2011
dc.date.issued 2011-10-10
dc.identifier.citation Wu, B., Yi, S. & Fane, A. G. (2011). Microbial community developments and biomass characteristics in membrane bioreactors under different organic loadings. Bioresource Technology 102(13), 6808–6814.
dc.identifier.issn 0960-8524
dc.identifier.uri http://hdl.handle.net/10220/7196
dc.description.abstract Microbial community developments and biomass characteristics (concentration, particle size, extracellular polymeric substances (EPS), and membrane fouling propensity) were compared when three MBRs were fed with the synthetic wastewater at different organic loadings. Results showed that the bacterial communities dynamically shifted in different ways and the EPS displayed dissimilar profiles under various organic loadings, which were associated with the ratios of food to microorganism and dissolved oxygen levels in the MBRs. The membrane fouling tendency of biomass in the low-loading MBR (0.57 g COD/L day) was insignificantly different from that in the medium-loading MBR (1.14 g COD/L day), which was apparently lower than that in the high-loading MBR (2.28 g COD/L day). The membrane fouling propensity of biomass was strongly correlated with their bound EPS contents, indicating cake layer fouling (i.e., deposition of microbial flocs) was predominant in membrane fouling at a high flux of 30 L/m2 h.
dc.format.extent 7 p.
dc.language.iso en
dc.relation.ispartofseries Bioresource technology
dc.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.2011.04.012]
dc.subject DRNTU::Engineering::Environmental engineering::Water treatment.
dc.title Microbial community developments and biomass characteristics in membrane bioreactors under different organic loadings
dc.type Journal Article
dc.contributor.research Singapore Membrane Technology Centre
dc.identifier.doi http://dx.doi.org/10.1016/j.biortech.2011.04.012
dc.description.version Accepted version

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