Removal pathways of benzofluoranthene in a constructed wetland amended with metallic ions embedded carbon.

Guo, Z; Kang, Y; Hu, Z; Liang, S; Xie, H; Ngo, HH; Zhang, J

Removal pathways of benzofluoranthene in a constructed wetland amended with metallic ions embedded carbon.

Guo, Z Kang, Y Hu, Z Liang, S Xie, H Ngo, HH Zhang, J

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Bioresource technology, 2020, 311, pp. 123481
Issue Date:: 2020-09

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Field	Value	Language
dc.contributor.author	Guo, Z
dc.contributor.author	Kang, Y
dc.contributor.author	Hu, Z
dc.contributor.author	Liang, S
dc.contributor.author	Xie, H
dc.contributor.author	Ngo, HH
dc.contributor.author	Zhang, J
dc.date.accessioned	2020-07-24T08:05:34Z
dc.date.available	2020-05-04
dc.date.available	2020-07-24T08:05:34Z
dc.date.issued	2020-09
dc.identifier.citation	Bioresource technology, 2020, 311, pp. 123481
dc.identifier.issn	0960-8524
dc.identifier.issn	1873-2976
dc.identifier.uri	http://hdl.handle.net/10453/141858
dc.description.abstract	The limited adsorption capacity of the substrate and the concentration of dissolved oxygen in constructed wetlands (CWs) have inhibited their ability to efficiently remove polycyclic aromatic hydrocarbons (PAHs) from wastewater. Presently, biochar and activated carbon modified with Fe3+ and Mn4+ were used as effective sorbents in the removal of benzofluoranthene (BbFA), a typical PAH, in CW microcosms. The addition of metallic ions embedded carbon increased NO3-N accumulation by the reduction of Fe3+ and Mn4+, which led to improved BbFA degradation. Additionally, plant adsorption in root and stem sections were observed separately. The abundance of PAH-degrading microbes in the rhizosphere substrate was higher with the metallic ions embedded carbon than control group. The Fe3+, Mn4+ and NO3-N served as electron acceptors increased BbFA microbial degradation. The removal pathways of BbFA in the modified CWs were proposed which involved settlement in the substrate, plant absorption, and microbial degradation.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier BV
dc.relation.ispartof	Bioresource technology
dc.relation.isbasedon	10.1016/j.biortech.2020.123481
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Biotechnology
dc.subject.mesh	Ions
dc.subject.mesh	Oxygen
dc.subject.mesh	Nitrogen
dc.subject.mesh	Wetlands
dc.subject.mesh	Waste Water
dc.subject.mesh	Ions
dc.subject.mesh	Nitrogen
dc.subject.mesh	Oxygen
dc.subject.mesh	Waste Water
dc.subject.mesh	Wetlands
dc.title	Removal pathways of benzofluoranthene in a constructed wetland amended with metallic ions embedded carbon.
dc.type	Journal Article
utslib.citation.volume	311
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
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
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2022-09-01T00:00:00+1000Z
dc.date.updated	2020-07-24T08:05:30Z
pubs.publication-status	Accepted
pubs.volume	311

Abstract:

The limited adsorption capacity of the substrate and the concentration of dissolved oxygen in constructed wetlands (CWs) have inhibited their ability to efficiently remove polycyclic aromatic hydrocarbons (PAHs) from wastewater. Presently, biochar and activated carbon modified with Fe3+ and Mn4+ were used as effective sorbents in the removal of benzofluoranthene (BbFA), a typical PAH, in CW microcosms. The addition of metallic ions embedded carbon increased NO3-N accumulation by the reduction of Fe3+ and Mn4+, which led to improved BbFA degradation. Additionally, plant adsorption in root and stem sections were observed separately. The abundance of PAH-degrading microbes in the rhizosphere substrate was higher with the metallic ions embedded carbon than control group. The Fe3+, Mn4+ and NO3-N served as electron acceptors increased BbFA microbial degradation. The removal pathways of BbFA in the modified CWs were proposed which involved settlement in the substrate, plant absorption, and microbial degradation.

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http://hdl.handle.net/10453/141858