Advances in pretreatment strategies to enhance the biodegradability of waste activated sludge for the conversion of refractory substances.

Liu, X; Wang, D; Chen, Z; Wei, W; Mannina, G; Ni, B-J

Advances in pretreatment strategies to enhance the biodegradability of waste activated sludge for the conversion of refractory substances.

Liu, X Wang, D Chen, Z

Wei, W Mannina, G Ni, B-J

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Bioresour Technol, 2022, 362, pp. 127804
Issue Date:: 2022-10

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Field	Value	Language
dc.contributor.author	Liu, X
dc.contributor.author	Wang, D
dc.contributor.author	Chen, Z https://orcid.org/0000-0003-0627-0856
dc.contributor.author	Wei, W
dc.contributor.author	Mannina, G
dc.contributor.author	Ni, B-J
dc.date.accessioned	2023-03-20T00:35:55Z
dc.date.available	2022-08-16
dc.date.available	2023-03-20T00:35:55Z
dc.date.issued	2022-10
dc.identifier.citation	Bioresour Technol, 2022, 362, pp. 127804
dc.identifier.issn	0960-8524
dc.identifier.issn	1873-2976
dc.identifier.uri	http://hdl.handle.net/10453/167663
dc.description.abstract	Anaerobic digestion (AD) is a low-cost technology widely used to divert waste activated sludge (WAS) to renewable energy production, but is generally restricted by its poor biodegradability which mainly caused by the endogenous and exogenous refractory substances present in WAS. Several conventional methods such as thermal-, chemical-, and mechanical-based pretreatment have been demonstrated to be effective on organics release, but their functions on refractory substances conversion are overlooked. This paper firstly reviewed the presence and role of endogenous and exogenous refractory substances in anaerobic biodegradability of WAS, especially on their inhibition mechanisms. Then, the pretreatment strategies developed for enhancing WAS biodegradability by facilitating refractory substances conversion were comprehensively reviewed, with the conversion pathways and underlying mechanisms being emphasized. Finally, the future research needs were directed, which are supposed to improve the circular bioeconomy of WAS management from the point of removing the hindering barrier of refractory substances on WAS biodegradability.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER SCI LTD
dc.relation	http://purl.org/au-research/grants/arc/DP220101139
dc.relation	http://purl.org/au-research/grants/arc/DE220100530
dc.relation.ispartof	Bioresour Technol
dc.relation.isbasedon	10.1016/j.biortech.2022.127804
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Biotechnology
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Methane
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Waste Management
dc.subject.mesh	Methane
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Waste Management
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Methane
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Waste Management
dc.title	Advances in pretreatment strategies to enhance the biodegradability of waste activated sludge for the conversion of refractory substances.
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	closed_access	*
dc.date.updated	2023-03-20T00:35:54Z
pubs.publication-status	Published
pubs.volume	362

Abstract:

Anaerobic digestion (AD) is a low-cost technology widely used to divert waste activated sludge (WAS) to renewable energy production, but is generally restricted by its poor biodegradability which mainly caused by the endogenous and exogenous refractory substances present in WAS. Several conventional methods such as thermal-, chemical-, and mechanical-based pretreatment have been demonstrated to be effective on organics release, but their functions on refractory substances conversion are overlooked. This paper firstly reviewed the presence and role of endogenous and exogenous refractory substances in anaerobic biodegradability of WAS, especially on their inhibition mechanisms. Then, the pretreatment strategies developed for enhancing WAS biodegradability by facilitating refractory substances conversion were comprehensively reviewed, with the conversion pathways and underlying mechanisms being emphasized. Finally, the future research needs were directed, which are supposed to improve the circular bioeconomy of WAS management from the point of removing the hindering barrier of refractory substances on WAS biodegradability.

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http://hdl.handle.net/10453/167663