Phosphorus removal performance of microbial-enhanced constructed wetlands that treat saline wastewater

Wang, Q; Ding, J; Xie, H; Hao, D; Du, Y; Zhao, C; Xu, F; Kong, Q; Wang, B

Phosphorus removal performance of microbial-enhanced constructed wetlands that treat saline wastewater

Wang, Q Ding, J Xie, H Hao, D Du, Y Zhao, C Xu, F Kong, Q Wang, B

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Journal of Cleaner Production, 2021, 288
Issue Date:: 2021-03-15

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Field	Value	Language
dc.contributor.author	Wang, Q
dc.contributor.author	Ding, J
dc.contributor.author	Xie, H
dc.contributor.author	Hao, D
dc.contributor.author	Du, Y
dc.contributor.author	Zhao, C
dc.contributor.author	Xu, F
dc.contributor.author	Kong, Q
dc.contributor.author	Wang, B
dc.date.accessioned	2022-05-20T20:40:23Z
dc.date.available	2022-05-20T20:40:23Z
dc.date.issued	2021-03-15
dc.identifier.citation	Journal of Cleaner Production, 2021, 288
dc.identifier.issn	0959-6526
dc.identifier.issn	1879-1786
dc.identifier.uri	http://hdl.handle.net/10453/157582
dc.description.abstract	The discharge of phosphorus-rich saline wastewater deteriorates the water quality and causes frequent public health incidents. Therefore, this kind of wastewater must be treated using clean and efficient methods. The main objective of this study is to investigate the phosphorus removal performance in constructed wetlands (CWs) with intertidal wetland sediments (IWS) as a new microbial source for treating saline wastewater. IWS was introduced into the substrate of CWs planted with Phragmites australis. CWs without IWS and plants were set as the control groups. The phosphorus removal via plant uptake, substrate accumulation, and microbial transformation were evaluated, and the microbial community was analyzed under salty environment. Results showed that the removal rates in CWs with IWS (89.03% ± 1.47%) were higher than those in CWs without IWS (82.35% ± 1.58%). The microbial analysis revealed that numerous bacteria actively related to phosphorus removal, such as phosphorus-accumulating organisms, denitrifying PAOs, and phosphate solubilizing bacteria, were present in IWS-CWs. These bacteria enhanced the phosphorus removal through microbial transformation. Moreover, the addition of IWS increased the phosphorus loss via substrate accumulation, whereas the phosphorus removal rate via plant uptake decreased. The microbial augmentation of CWs with IWS as a new inoculation source is eco-friendly, economical, and effective and provides the possibility of applying CWs in the field of saline wastewater treatment.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Journal of Cleaner Production
dc.relation.isbasedon	10.1016/j.jclepro.2020.125119
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0907 Environmental Engineering, 0910 Manufacturing Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	Environmental Sciences
dc.title	Phosphorus removal performance of microbial-enhanced constructed wetlands that treat saline wastewater
dc.type	Journal Article
utslib.citation.volume	288
utslib.for	0907 Environmental Engineering
utslib.for	0910 Manufacturing Engineering
utslib.for	0915 Interdisciplinary 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
utslib.copyright.status	closed_access	*
dc.date.updated	2022-05-20T20:40:21Z
pubs.publication-status	Published
pubs.volume	288

Abstract:

The discharge of phosphorus-rich saline wastewater deteriorates the water quality and causes frequent public health incidents. Therefore, this kind of wastewater must be treated using clean and efficient methods. The main objective of this study is to investigate the phosphorus removal performance in constructed wetlands (CWs) with intertidal wetland sediments (IWS) as a new microbial source for treating saline wastewater. IWS was introduced into the substrate of CWs planted with Phragmites australis. CWs without IWS and plants were set as the control groups. The phosphorus removal via plant uptake, substrate accumulation, and microbial transformation were evaluated, and the microbial community was analyzed under salty environment. Results showed that the removal rates in CWs with IWS (89.03% ± 1.47%) were higher than those in CWs without IWS (82.35% ± 1.58%). The microbial analysis revealed that numerous bacteria actively related to phosphorus removal, such as phosphorus-accumulating organisms, denitrifying PAOs, and phosphate solubilizing bacteria, were present in IWS-CWs. These bacteria enhanced the phosphorus removal through microbial transformation. Moreover, the addition of IWS increased the phosphorus loss via substrate accumulation, whereas the phosphorus removal rate via plant uptake decreased. The microbial augmentation of CWs with IWS as a new inoculation source is eco-friendly, economical, and effective and provides the possibility of applying CWs in the field of saline wastewater treatment.

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http://hdl.handle.net/10453/157582