Application of a specific membrane fouling control enhancer in membrane bioreactor for real municipal wastewater treatment: Sludge characteristics and microbial community.

Deng, L; Guo, W; Ngo, HH; Wang, XC; Hu, Y; Chen, R; Cheng, D; Guo, S; Cao, Y

Application of a specific membrane fouling control enhancer in membrane bioreactor for real municipal wastewater treatment: Sludge characteristics and microbial community.

Deng, L Guo, W

Ngo, HH Wang, XC Hu, Y Chen, R Cheng, D Guo, S Cao, Y

Permalink

Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Bioresource technology, 2020, 312, pp. 123612
Issue Date:: 2020-09

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

The embargo period expires on 1 Sep 2022

Adobe PDF

Download Accepted Manuscript VersionAdobe PDF (1.33 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Deng, L
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858
dc.contributor.author	Ngo, HH
dc.contributor.author	Wang, XC
dc.contributor.author	Hu, Y
dc.contributor.author	Chen, R
dc.contributor.author	Cheng, D
dc.contributor.author	Guo, S
dc.contributor.author	Cao, Y
dc.date.accessioned	2020-07-20T09:09:31Z
dc.date.available	2020-05-29
dc.date.available	2020-07-20T09:09:31Z
dc.date.issued	2020-09
dc.identifier.citation	Bioresource technology, 2020, 312, pp. 123612
dc.identifier.issn	0960-8524
dc.identifier.issn	1873-2976
dc.identifier.uri	http://hdl.handle.net/10453/141810
dc.description.abstract	The feasibility of a novel bioflocculant (GemFloc™) for membrane fouling mitigation in membrane bioreactor (MBR) was investigated during real municipal wastewater treatment. When compared to the conventional MBR (CMBR), suspended sludge in the MBR with GemFloc™ (G-MBR) showed less soluble microbial products (SMP), higher ratios of proteins to polysaccharides in SMP (SMPP/SMPC) and loosely bound extracellular polymeric substances (LB-EPS). Adding GemFloc™ also enlarged floc size (> 200 µm), and increased tightly bound EPS levels, zeta potential and relative hydrophobicity of sludge flocs, further reduced cake layer and pore blocking resistances. Moreover, more diverse microbial community and enrichment of fouling reduction microbes such as Arenimonas and Flavihumibacter were observed in the G-MBR, together with less abundant microbes (e.g. Sphaerotilus and Povalibacter) which could aggravate membrane fouling. Therefore, GemFloc™ has high capability in improving sludge characteristics, mitigating membrane fouling and increasing diversity of special functional bacterial community in MBR.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier BV
dc.relation	AWR Environmental Research Co., Ltd
dc.relation.ispartof	Bioresource technology
dc.relation.isbasedon	10.1016/j.biortech.2020.123612
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Biotechnology
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Bioreactors
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Water
dc.subject.mesh	Microbiota
dc.subject.mesh	Bioreactors
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Microbiota
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Water
dc.title	Application of a specific membrane fouling control enhancer in membrane bioreactor for real municipal wastewater treatment: Sludge characteristics and microbial community.
dc.type	Journal Article
utslib.citation.volume	312
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2022-09-01T00:00:00+1000Z
dc.date.updated	2020-07-20T09:09:12Z
pubs.publication-status	Accepted
pubs.volume	312

Abstract:

The feasibility of a novel bioflocculant (GemFloc™) for membrane fouling mitigation in membrane bioreactor (MBR) was investigated during real municipal wastewater treatment. When compared to the conventional MBR (CMBR), suspended sludge in the MBR with GemFloc™ (G-MBR) showed less soluble microbial products (SMP), higher ratios of proteins to polysaccharides in SMP (SMPP/SMPC) and loosely bound extracellular polymeric substances (LB-EPS). Adding GemFloc™ also enlarged floc size (> 200 µm), and increased tightly bound EPS levels, zeta potential and relative hydrophobicity of sludge flocs, further reduced cake layer and pore blocking resistances. Moreover, more diverse microbial community and enrichment of fouling reduction microbes such as Arenimonas and Flavihumibacter were observed in the G-MBR, together with less abundant microbes (e.g. Sphaerotilus and Povalibacter) which could aggravate membrane fouling. Therefore, GemFloc™ has high capability in improving sludge characteristics, mitigating membrane fouling and increasing diversity of special functional bacterial community in MBR.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/141810