Enhanced energy production and biological treatment of swine wastewater using anaerobic membrane bioreactor: Fouling mechanism and microbial community.

Pu, Y; Tang, J; Zeng, T; Hu, Y; Wang, Q; Huang, J; Pan, S; Wang, XC; Li, Y; Hao Ngo, H; Abomohra, A

Enhanced energy production and biological treatment of swine wastewater using anaerobic membrane bioreactor: Fouling mechanism and microbial community.

Pu, Y Tang, J Zeng, T Hu, Y Wang, Q Huang, J Pan, S Wang, XC Li, Y Hao Ngo, H Abomohra, A

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Bioresour Technol, 2022, 362, pp. 127850
Issue Date:: 2022-10

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Field	Value	Language
dc.contributor.author	Pu, Y
dc.contributor.author	Tang, J
dc.contributor.author	Zeng, T
dc.contributor.author	Hu, Y
dc.contributor.author	Wang, Q
dc.contributor.author	Huang, J
dc.contributor.author	Pan, S
dc.contributor.author	Wang, XC
dc.contributor.author	Li, Y
dc.contributor.author	Hao Ngo, H
dc.contributor.author	Abomohra, A
dc.date.accessioned	2023-01-19T05:56:39Z
dc.date.available	2022-08-22
dc.date.available	2023-01-19T05:56:39Z
dc.date.issued	2022-10
dc.identifier.citation	Bioresour Technol, 2022, 362, pp. 127850
dc.identifier.issn	0960-8524
dc.identifier.issn	1873-2976
dc.identifier.uri	http://hdl.handle.net/10453/165248
dc.description.abstract	This study aimed to reveal the membrane fouling mechanisms during anaerobic membrane bioreactor (AnMBR) operation for swine wastewater treatment under different organic loading rates (OLR). Results showed that AnMBR could achieve high pollutant removal (71.9-83.6 %) and energy recovery (0.18-0.23 L-CH4/g-COD) at an OLR range of 0.25-0.5 g-COD/g-VSS.d, realizing energy production. However, higher OLR would aggravate the membrane fouling due to accumulation of fine sludge particles, organic foulants, and extracellular polymeric substances (EPS) on cake layer. Based on the high-throughput sequencing, microbial communities significantly changed and fouling-causing bacteria (e.g. Pseudomonas, Methanosarcina and Methanothrix) enriched in the cake layer at higher OLR conditions, leading to lower membrane permeability. Backwash can effectively remove the cake layer from the membrane surface and recover membrane permeability. The present study provides important information about membrane fouling and microbial information that could have significant impact on large-scale AnMBR application.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier BV
dc.relation.ispartof	Bioresour Technol
dc.relation.isbasedon	10.1016/j.biortech.2022.127850
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Biotechnology
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Animals
dc.subject.mesh	Bioreactors
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Microbiota
dc.subject.mesh	Sewage
dc.subject.mesh	Swine
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Wastewater
dc.subject.mesh	Animals
dc.subject.mesh	Swine
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Bioreactors
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Waste Water
dc.subject.mesh	Microbiota
dc.title	Enhanced energy production and biological treatment of swine wastewater using anaerobic membrane bioreactor: Fouling mechanism and microbial community.
dc.type	Journal Article
utslib.citation.volume	362
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
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/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2024-10-01T00:00:00+1000Z
dc.date.updated	2023-01-19T05:56:38Z
pubs.publication-status	Published
pubs.volume	362

Abstract:

This study aimed to reveal the membrane fouling mechanisms during anaerobic membrane bioreactor (AnMBR) operation for swine wastewater treatment under different organic loading rates (OLR). Results showed that AnMBR could achieve high pollutant removal (71.9-83.6 %) and energy recovery (0.18-0.23 L-CH4/g-COD) at an OLR range of 0.25-0.5 g-COD/g-VSS.d, realizing energy production. However, higher OLR would aggravate the membrane fouling due to accumulation of fine sludge particles, organic foulants, and extracellular polymeric substances (EPS) on cake layer. Based on the high-throughput sequencing, microbial communities significantly changed and fouling-causing bacteria (e.g. Pseudomonas, Methanosarcina and Methanothrix) enriched in the cake layer at higher OLR conditions, leading to lower membrane permeability. Backwash can effectively remove the cake layer from the membrane surface and recover membrane permeability. The present study provides important information about membrane fouling and microbial information that could have significant impact on large-scale AnMBR application.

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http://hdl.handle.net/10453/165248