Microplastics aging in wastewater treatment plants: Focusing on physicochemical characteristics changes and corresponding environmental risks.

Liu, X; Deng, Q; Zheng, Y; Wang, D; Ni, B-J

Microplastics aging in wastewater treatment plants: Focusing on physicochemical characteristics changes and corresponding environmental risks.

Liu, X Deng, Q Zheng, Y Wang, D Ni, B-J

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Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Water Res, 2022, 221, pp. 118780
Issue Date:: 2022-08-01

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Field	Value	Language
dc.contributor.author	Liu, X
dc.contributor.author	Deng, Q
dc.contributor.author	Zheng, Y
dc.contributor.author	Wang, D
dc.contributor.author	Ni, B-J
dc.date.accessioned	2023-03-23T02:26:16Z
dc.date.available	2022-06-17
dc.date.available	2023-03-23T02:26:16Z
dc.date.issued	2022-08-01
dc.identifier.citation	Water Res, 2022, 221, pp. 118780
dc.identifier.issn	0043-1354
dc.identifier.issn	1879-2448
dc.identifier.uri	http://hdl.handle.net/10453/168163
dc.description.abstract	Microplastics (MPs) have been frequently detected in effluent wastewater and sludge in wastewater treatment plants (WWTPs), the discharge and agricultural application of which represent a primary source of environmental MPs contamination. As important as quantitative removal is, changes of physicochemical characteristics of MPs (e.g., shapes, sizes, density, crystallinity) in WWTPs are crucial to their environmental behaviors and risks and have not been put enough attention yet. This review is therefore to provide a current overview on the changes of physicochemical characteristics of MPs in WWTPs and their corresponding environmental risks. The changes of physicochemical characteristics as well as the underlying mechanisms of MPs in different successional wastewater and sludge treatment stages that mainly driven by mechanical (e.g., mixing, pumping, filtering), chemical (e.g., flocculation, advanced oxidation, ultraviolet radiation, thermal hydrolysis, incineration and lime stabilization), biological (e.g., activated sludge process, anaerobic digestion, composition) and their combination effects were first recapitulated. Then, the inevitable correlations between physicochemical characteristics of MPs and their environmental behaviors (e.g., migration, adsorption) and risks (e.g., animals, plants, microbes), are comprehensively discussed with particular emphasis on the leaching of additives and physicochemical characteristics that affect the co-exist pollutants behavior of MPs in WWTPs on environmental risks. Finally, knowing the summarized above, some relating unanswered questions and concerns that need to be unveiled in the future are prospected. The physicochemical properties of MPs change after passing through WWTP, leading to subsequent changes in co-contaminant adsorption, migration, and toxicity. This could threaten our ecosystems and human health and must be worth investigating.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartof	Water Res
dc.relation.isbasedon	10.1016/j.watres.2022.118780
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Engineering
dc.subject.mesh	Aging
dc.subject.mesh	Animals
dc.subject.mesh	Ecosystem
dc.subject.mesh	Environmental Monitoring
dc.subject.mesh	Humans
dc.subject.mesh	Microplastics
dc.subject.mesh	Plastics
dc.subject.mesh	Sewage
dc.subject.mesh	Ultraviolet Rays
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Wastewater
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.subject.mesh	Animals
dc.subject.mesh	Humans
dc.subject.mesh	Plastics
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Ecosystem
dc.subject.mesh	Ultraviolet Rays
dc.subject.mesh	Environmental Monitoring
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Water Purification
dc.subject.mesh	Aging
dc.subject.mesh	Microplastics
dc.subject.mesh	Wastewater
dc.subject.mesh	Aging
dc.subject.mesh	Animals
dc.subject.mesh	Ecosystem
dc.subject.mesh	Environmental Monitoring
dc.subject.mesh	Humans
dc.subject.mesh	Microplastics
dc.subject.mesh	Plastics
dc.subject.mesh	Sewage
dc.subject.mesh	Ultraviolet Rays
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Wastewater
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.title	Microplastics aging in wastewater treatment plants: Focusing on physicochemical characteristics changes and corresponding environmental risks.
dc.type	Journal Article
utslib.citation.volume	221
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	2023-03-23T02:25:57Z
pubs.publication-status	Published
pubs.volume	221

Abstract:

Microplastics (MPs) have been frequently detected in effluent wastewater and sludge in wastewater treatment plants (WWTPs), the discharge and agricultural application of which represent a primary source of environmental MPs contamination. As important as quantitative removal is, changes of physicochemical characteristics of MPs (e.g., shapes, sizes, density, crystallinity) in WWTPs are crucial to their environmental behaviors and risks and have not been put enough attention yet. This review is therefore to provide a current overview on the changes of physicochemical characteristics of MPs in WWTPs and their corresponding environmental risks. The changes of physicochemical characteristics as well as the underlying mechanisms of MPs in different successional wastewater and sludge treatment stages that mainly driven by mechanical (e.g., mixing, pumping, filtering), chemical (e.g., flocculation, advanced oxidation, ultraviolet radiation, thermal hydrolysis, incineration and lime stabilization), biological (e.g., activated sludge process, anaerobic digestion, composition) and their combination effects were first recapitulated. Then, the inevitable correlations between physicochemical characteristics of MPs and their environmental behaviors (e.g., migration, adsorption) and risks (e.g., animals, plants, microbes), are comprehensively discussed with particular emphasis on the leaching of additives and physicochemical characteristics that affect the co-exist pollutants behavior of MPs in WWTPs on environmental risks. Finally, knowing the summarized above, some relating unanswered questions and concerns that need to be unveiled in the future are prospected. The physicochemical properties of MPs change after passing through WWTP, leading to subsequent changes in co-contaminant adsorption, migration, and toxicity. This could threaten our ecosystems and human health and must be worth investigating.

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http://hdl.handle.net/10453/168163