Effect of substrate composition (C/N/P ratio) on microbial community and membrane fouling tendency of biomass in membrane bioreactors

In this study, biomass characteristics including bacterial community, extracellular polymeric substances (EPS) production, and membrane fouling propensity were examined when the membrane bioreactors (MBRs) were fed with different substrates (i.e., different C/N/P ratios). Denaturing gradient gel ele...

Full description

Saved in:
Bibliographic Details
Main Authors: Wu, Bing, Yi, Shan, Fane, Anthony Gordon
Other Authors: Singapore Membrane Technology Centre
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/97632
http://hdl.handle.net/10220/12094
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-97632
record_format dspace
spelling sg-ntu-dr.10356-976322020-03-07T12:48:43Z Effect of substrate composition (C/N/P ratio) on microbial community and membrane fouling tendency of biomass in membrane bioreactors Wu, Bing Yi, Shan Fane, Anthony Gordon Singapore Membrane Technology Centre DRNTU::Science::Biological sciences In this study, biomass characteristics including bacterial community, extracellular polymeric substances (EPS) production, and membrane fouling propensity were examined when the membrane bioreactors (MBRs) were fed with different substrates (i.e., different C/N/P ratios). Denaturing gradient gel electrophoresis (DGGE) analysis revealed that significant shifts of bacterial communities happened when increasing nitrogen or phosphorus loading in the MBRs, which followed in an almost similar way. At steady state, the biomass from the low C/N- and C/P-MBRs had comparable concentrations and produced similar EPS levels as those in the control MBR. However, the median particle size increased when the MBRs fed with low C/N- or C/P- substrate, possibly associated with the filamentous bacteria propagating in the MBRs. Increasing nitrogen or phosphorus loading 1-fold could not induce more serious membrane fouling compared to the control MBR. 2013-07-24T03:35:18Z 2019-12-06T19:44:46Z 2013-07-24T03:35:18Z 2019-12-06T19:44:46Z 2012 2012 Journal Article Wu, B., Yi, S., & Fane, A. G. (2012). Effect of Substrate Composition (C/N/P ratio) on Microbial Community and Membrane Fouling Tendency of Biomass in Membrane Bioreactors. Separation Science and Technology, 47(3), 440-445. 0149-6395 https://hdl.handle.net/10356/97632 http://hdl.handle.net/10220/12094 10.1080/01496395.2011.621503 en Separation science and technology © 2012 Taylor & Francis Group, LLC.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Science::Biological sciences
spellingShingle DRNTU::Science::Biological sciences
Wu, Bing
Yi, Shan
Fane, Anthony Gordon
Effect of substrate composition (C/N/P ratio) on microbial community and membrane fouling tendency of biomass in membrane bioreactors
description In this study, biomass characteristics including bacterial community, extracellular polymeric substances (EPS) production, and membrane fouling propensity were examined when the membrane bioreactors (MBRs) were fed with different substrates (i.e., different C/N/P ratios). Denaturing gradient gel electrophoresis (DGGE) analysis revealed that significant shifts of bacterial communities happened when increasing nitrogen or phosphorus loading in the MBRs, which followed in an almost similar way. At steady state, the biomass from the low C/N- and C/P-MBRs had comparable concentrations and produced similar EPS levels as those in the control MBR. However, the median particle size increased when the MBRs fed with low C/N- or C/P- substrate, possibly associated with the filamentous bacteria propagating in the MBRs. Increasing nitrogen or phosphorus loading 1-fold could not induce more serious membrane fouling compared to the control MBR.
author2 Singapore Membrane Technology Centre
author_facet Singapore Membrane Technology Centre
Wu, Bing
Yi, Shan
Fane, Anthony Gordon
format Article
author Wu, Bing
Yi, Shan
Fane, Anthony Gordon
author_sort Wu, Bing
title Effect of substrate composition (C/N/P ratio) on microbial community and membrane fouling tendency of biomass in membrane bioreactors
title_short Effect of substrate composition (C/N/P ratio) on microbial community and membrane fouling tendency of biomass in membrane bioreactors
title_full Effect of substrate composition (C/N/P ratio) on microbial community and membrane fouling tendency of biomass in membrane bioreactors
title_fullStr Effect of substrate composition (C/N/P ratio) on microbial community and membrane fouling tendency of biomass in membrane bioreactors
title_full_unstemmed Effect of substrate composition (C/N/P ratio) on microbial community and membrane fouling tendency of biomass in membrane bioreactors
title_sort effect of substrate composition (c/n/p ratio) on microbial community and membrane fouling tendency of biomass in membrane bioreactors
publishDate 2013
url https://hdl.handle.net/10356/97632
http://hdl.handle.net/10220/12094
_version_ 1681042519537745920