Assessing the Long-Term performance of an integrated microbial fuel Cell-Anaerobic membrane bioreactor for swine wastewater treatment

Huang, H; Zhang, X; Du, Q; Gao, F; Wang, Z; Wu, G; Guo, W; Hao Ngo, H

Assessing the Long-Term performance of an integrated microbial fuel Cell-Anaerobic membrane bioreactor for swine wastewater treatment

Huang, H Zhang, X Du, Q Gao, F Wang, Z Wu, G Guo, W

Hao Ngo, H

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Chemical Engineering Journal, 2024, 493, pp. 152772
Issue Date:: 2024-08-01

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Field	Value	Language
dc.contributor.author	Huang, H
dc.contributor.author	Zhang, X
dc.contributor.author	Du, Q
dc.contributor.author	Gao, F
dc.contributor.author	Wang, Z
dc.contributor.author	Wu, G
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858
dc.contributor.author	Hao Ngo, H
dc.date.accessioned	2025-01-22T11:17:58Z
dc.date.available	2025-01-22T11:17:58Z
dc.date.issued	2024-08-01
dc.identifier.citation	Chemical Engineering Journal, 2024, 493, pp. 152772
dc.identifier.issn	1385-8947
dc.identifier.uri	http://hdl.handle.net/10453/184019
dc.description.abstract	To improve the performance of an anaerobic membrane bioreactor (AnMBR) treating swine wastewater, an integrated microbial fuel cell (MFC)-AnMBR was constructed and operated for 185 days at organic concentrations of 3000–––12000 mg/L to investigate the effect of the in-situ bioelectric field on organic removal, methane production, system stability and membrane fouling. Results showed that MFC-AnMBR achieved up to 99.0 % chemical oxygen demand (COD) removal at all organic loads with the maximum methanogenic capacity of 0.21 L/gCODremoved. Compared to conventional AnMBR, MFC-AnMBR shortened the start-up period by 15 days, improved the COD removal by 8.7 ± 1.5 % and methane production by 54.2 ± 37.8 %. In the presence of the bioelectric field, the concentrations of soluble microbial products (SMP) and extracellular polymeric substances (EPS) were reduced by 52.7 ± 10.9 % and 15.7 ± 10.9 %, respectively. Notably, the bioelectric field extended the membrane life cycle by more than 40 days. Facilitated by the bioelectric field, the abundance of g_Methanothrix and g_Brooklawnia (capable of electron transfer with g_Methanothrix) in MFC-AnMBR were increased by 29.5 % − 48.7 % and 8.2 % − 10.8 %, respectively, greatly enhancing the methanogenic performance. Furthermore, the bioelectric field inhibited the growth of membrane-fouling bacteria (p_Bacteroidota and p_Firmicutes) and promoted the proliferation of membrane-fouling-mitigating bacteria p_Actinobacteria on the membranes. Overall, the integrated MFC-AnMBR system exhibited an excellent long-term operation performance when treating swine wastewater at different organic loads. This provided a promising strategy for stabilising and efficiently treating swine wastewater.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Chemical Engineering Journal
dc.relation.isbasedon	10.1016/j.cej.2024.152772
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0904 Chemical Engineering, 0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	Chemical Engineering
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4011 Environmental engineering
dc.subject.classification	4016 Materials engineering
dc.title	Assessing the Long-Term performance of an integrated microbial fuel Cell-Anaerobic membrane bioreactor for swine wastewater treatment
dc.type	Journal Article
utslib.citation.volume	493
utslib.for	0904 Chemical Engineering
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
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/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Technology in Water and Wastewater (CTWW)
utslib.copyright.status	open_access	*
dc.date.updated	2025-01-22T11:17:56Z
pubs.publication-status	Published
pubs.volume	493

Abstract:

To improve the performance of an anaerobic membrane bioreactor (AnMBR) treating swine wastewater, an integrated microbial fuel cell (MFC)-AnMBR was constructed and operated for 185 days at organic concentrations of 3000–––12000 mg/L to investigate the effect of the in-situ bioelectric field on organic removal, methane production, system stability and membrane fouling. Results showed that MFC-AnMBR achieved up to 99.0 % chemical oxygen demand (COD) removal at all organic loads with the maximum methanogenic capacity of 0.21 L/gCODremoved. Compared to conventional AnMBR, MFC-AnMBR shortened the start-up period by 15 days, improved the COD removal by 8.7 ± 1.5 % and methane production by 54.2 ± 37.8 %. In the presence of the bioelectric field, the concentrations of soluble microbial products (SMP) and extracellular polymeric substances (EPS) were reduced by 52.7 ± 10.9 % and 15.7 ± 10.9 %, respectively. Notably, the bioelectric field extended the membrane life cycle by more than 40 days. Facilitated by the bioelectric field, the abundance of g_Methanothrix and g_Brooklawnia (capable of electron transfer with g_Methanothrix) in MFC-AnMBR were increased by 29.5 % − 48.7 % and 8.2 % − 10.8 %, respectively, greatly enhancing the methanogenic performance. Furthermore, the bioelectric field inhibited the growth of membrane-fouling bacteria (p_Bacteroidota and p_Firmicutes) and promoted the proliferation of membrane-fouling-mitigating bacteria p_Actinobacteria on the membranes. Overall, the integrated MFC-AnMBR system exhibited an excellent long-term operation performance when treating swine wastewater at different organic loads. This provided a promising strategy for stabilising and efficiently treating swine wastewater.

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http://hdl.handle.net/10453/184019