Role of initially formed cake layers on limiting membrane fouling in membrane bioreactors

In this study, an interesting phenomenon was observed that when the levels of soluble polysaccharides (SP) and soluble transparent exopolymer particles (sTEP) in the MBR unexpectedly and suddenly increased, the cleaned membranes tended to be more easily fouled compared to the membranes with the init...

Full description

Saved in:
Bibliographic Details
Main Authors: Wu, Bing, Kitade, Tamotsu, Chong, Tzyy Haur, Uemura, Tadahiro, Fane, Anthony Gordon
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/99497
http://hdl.handle.net/10220/12721
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-99497
record_format dspace
spelling sg-ntu-dr.10356-994972020-03-07T11:43:45Z Role of initially formed cake layers on limiting membrane fouling in membrane bioreactors Wu, Bing Kitade, Tamotsu Chong, Tzyy Haur Uemura, Tadahiro Fane, Anthony Gordon School of Civil and Environmental Engineering Singapore Membrane Technology Centre In this study, an interesting phenomenon was observed that when the levels of soluble polysaccharides (SP) and soluble transparent exopolymer particles (sTEP) in the MBR unexpectedly and suddenly increased, the cleaned membranes tended to be more easily fouled compared to the membranes with the initial cake layers formed in a slow TMP increase stage. Foulant analysis indicated great accumulation amounts of SP and sTEP on the cleaned membrane. FT-IR spectra further confirmed that hydroxyl and amide groups in the soluble substances preferred to attach on the cleaned membranes. While, the initially formed cake layers on the membranes played a role to decrease zeta potential of cleaned membranes, which created less interaction with the soluble substances. It suggests that forming loose-structured cake layers on the primary membranes could be thought as an effective membrane fouling control strategy. 2013-08-01T02:46:09Z 2019-12-06T20:08:05Z 2013-08-01T02:46:09Z 2019-12-06T20:08:05Z 2012 2012 Journal Article Wu, B., Kitade, T., Chong, T. H., Uemura, T.,& Fane, A. G. (2012). Role of initially formed cake layers on limiting membrane fouling in membrane bioreactors. Bioresource Technology, 118, 589-593. 0960-8524 https://hdl.handle.net/10356/99497 http://hdl.handle.net/10220/12721 10.1016/j.biortech.2012.05.016 en Bioresource technology
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
description In this study, an interesting phenomenon was observed that when the levels of soluble polysaccharides (SP) and soluble transparent exopolymer particles (sTEP) in the MBR unexpectedly and suddenly increased, the cleaned membranes tended to be more easily fouled compared to the membranes with the initial cake layers formed in a slow TMP increase stage. Foulant analysis indicated great accumulation amounts of SP and sTEP on the cleaned membrane. FT-IR spectra further confirmed that hydroxyl and amide groups in the soluble substances preferred to attach on the cleaned membranes. While, the initially formed cake layers on the membranes played a role to decrease zeta potential of cleaned membranes, which created less interaction with the soluble substances. It suggests that forming loose-structured cake layers on the primary membranes could be thought as an effective membrane fouling control strategy.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Wu, Bing
Kitade, Tamotsu
Chong, Tzyy Haur
Uemura, Tadahiro
Fane, Anthony Gordon
format Article
author Wu, Bing
Kitade, Tamotsu
Chong, Tzyy Haur
Uemura, Tadahiro
Fane, Anthony Gordon
spellingShingle Wu, Bing
Kitade, Tamotsu
Chong, Tzyy Haur
Uemura, Tadahiro
Fane, Anthony Gordon
Role of initially formed cake layers on limiting membrane fouling in membrane bioreactors
author_sort Wu, Bing
title Role of initially formed cake layers on limiting membrane fouling in membrane bioreactors
title_short Role of initially formed cake layers on limiting membrane fouling in membrane bioreactors
title_full Role of initially formed cake layers on limiting membrane fouling in membrane bioreactors
title_fullStr Role of initially formed cake layers on limiting membrane fouling in membrane bioreactors
title_full_unstemmed Role of initially formed cake layers on limiting membrane fouling in membrane bioreactors
title_sort role of initially formed cake layers on limiting membrane fouling in membrane bioreactors
publishDate 2013
url https://hdl.handle.net/10356/99497
http://hdl.handle.net/10220/12721
_version_ 1681048347278835712