Responses of anaerobic hydrogen-producing granules to acute microplastics exposure during biological hydrogen production from wastewater.

Wei, W; Zhang, Y-T; Wang, C; Guo, W; Ngo, HH; Chen, X; Ni, B-J

Responses of anaerobic hydrogen-producing granules to acute microplastics exposure during biological hydrogen production from wastewater.

Wei, W

Zhang, Y-T Wang, C Guo, W

Ngo, HH Chen, X Ni, B-J

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Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Water Res, 2022, 220, pp. 118680
Issue Date:: 2022-07-15

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Field	Value	Language
dc.contributor.author	Wei, W https://orcid.org/0000-0001-5613-337X
dc.contributor.author	Zhang, Y-T
dc.contributor.author	Wang, C
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858
dc.contributor.author	Ngo, HH
dc.contributor.author	Chen, X
dc.contributor.author	Ni, B-J
dc.date.accessioned	2023-01-26T06:03:36Z
dc.date.available	2022-05-26
dc.date.available	2023-01-26T06:03:36Z
dc.date.issued	2022-07-15
dc.identifier.citation	Water Res, 2022, 220, pp. 118680
dc.identifier.issn	0043-1354
dc.identifier.issn	1879-2448
dc.identifier.uri	http://hdl.handle.net/10453/165473
dc.description.abstract	Anaerobic hydrogen-producing granule (AHPG) has been successfully applied in hydrogen production from wastewater. While various types of microplastics in large amounts are readily detected in both municipal and industrial wastewaters, however, to date the response of AHPG to multiple coexisting microplastics in wastewater is unknown yet. Herein, this study provided a first insight into the acute exposure-response relationship between multiple coexisting microplastics and the AHPG during biological hydrogen production from wastewater. Fluorescence tagging found that many microplastics accumulated and covered on the surface of the whole granule. Morphology and particle size of microplastics-bearing AHPG were characterized by microscopic observation, showing that the shock load of microplastics in the wastewater at the studied concentrations (40 and 80 mg/L) made the granule loose and even break down with the decreased particle size. The visualization of extracellular polymeric substances (EPS) structure revealed that microplastics decreased EPS production by 8.8-16.7%. Microbial community analysis demonstrated that the acute exposure of microplastics did not drive the change in the microbial community diversity and composition. However, toxic leachates and upgraded oxidative stress induced by microplastics increased cell death up to 14.7% and decreased hydrogen production by 18.7%, when the AHPG exposed to 80 mg/L of microplastics. This work gained a new insight into the response of anaerobic microorganisms to coexisting microplastics in the real environment.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation	http://purl.org/au-research/grants/arc/DP220101142
dc.relation	http://purl.org/au-research/grants/arc/DP220101139
dc.relation	http://purl.org/au-research/grants/arc/DE220100530
dc.relation.ispartof	Water Res
dc.relation.isbasedon	10.1016/j.watres.2022.118680
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Environmental Engineering
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Hydrogen
dc.subject.mesh	Microplastics
dc.subject.mesh	Plastics
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Wastewater
dc.subject.mesh	Hydrogen
dc.subject.mesh	Plastics
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Waste Water
dc.subject.mesh	Microplastics
dc.title	Responses of anaerobic hydrogen-producing granules to acute microplastics exposure during biological hydrogen production from wastewater.
dc.type	Journal Article
utslib.citation.volume	220
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	2024-07-01T00:00:00+1000Z
dc.date.updated	2023-01-26T06:03:35Z
pubs.publication-status	Published
pubs.volume	220

Abstract:

Anaerobic hydrogen-producing granule (AHPG) has been successfully applied in hydrogen production from wastewater. While various types of microplastics in large amounts are readily detected in both municipal and industrial wastewaters, however, to date the response of AHPG to multiple coexisting microplastics in wastewater is unknown yet. Herein, this study provided a first insight into the acute exposure-response relationship between multiple coexisting microplastics and the AHPG during biological hydrogen production from wastewater. Fluorescence tagging found that many microplastics accumulated and covered on the surface of the whole granule. Morphology and particle size of microplastics-bearing AHPG were characterized by microscopic observation, showing that the shock load of microplastics in the wastewater at the studied concentrations (40 and 80 mg/L) made the granule loose and even break down with the decreased particle size. The visualization of extracellular polymeric substances (EPS) structure revealed that microplastics decreased EPS production by 8.8-16.7%. Microbial community analysis demonstrated that the acute exposure of microplastics did not drive the change in the microbial community diversity and composition. However, toxic leachates and upgraded oxidative stress induced by microplastics increased cell death up to 14.7% and decreased hydrogen production by 18.7%, when the AHPG exposed to 80 mg/L of microplastics. This work gained a new insight into the response of anaerobic microorganisms to coexisting microplastics in the real environment.

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http://hdl.handle.net/10453/165473