Removal of emerging contaminants (ECs) from aqueous solutions by modified biochar: A review

Zhang, J; Chen, Z; Liu, Y; Wei, W; Ni, BJ

Removal of emerging contaminants (ECs) from aqueous solutions by modified biochar: A review

Zhang, J Chen, Z Liu, Y

Wei, W Ni, BJ

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Chemical Engineering Journal, 2024, 479, pp. 147615
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Zhang, J
dc.contributor.author	Chen, Z
dc.contributor.author	Liu, Y https://orcid.org/0000-0001-6677-7961
dc.contributor.author	Wei, W
dc.contributor.author	Ni, BJ
dc.date.accessioned	2024-01-12T05:30:31Z
dc.date.available	2024-01-12T05:30:31Z
dc.date.issued	2024-01-01
dc.identifier.citation	Chemical Engineering Journal, 2024, 479, pp. 147615
dc.identifier.issn	1385-8947
dc.identifier.uri	http://hdl.handle.net/10453/174390
dc.description.abstract	The increasing concern over emerging contaminants (ECs) in aqueous solutions is driven by their potential risks to public health. Handling ECs becomes an urgent mission in the world. Biochar has been applied for ECs removal in wastewater for its low cost and satisfactory efficiency, while its practical applications are hindered by the limited adsorption capacity. To improve the removal efficiency of biochar on ECs, diverse techniques (acid-base modification, metal compound modification, steam activation, magnetization, heteroatom doping, and ball milling) have been applied to modify biochar and imbue it with a range of physicochemical attributes. This leads to unique adsorption outcomes, behaviors, and mechanisms. Herein, effective modification methods, effects and mechanisms of modified biochar on the removal of typical ECs including per- and polyfluoroalkyl substances (PFASs), antibiotics and antibiotic resistance genes (ARGs), micro(nano)plastics, and endocrine disrupting compounds (EDCs) in aqueous solution have been systematically discussed. Modified biochar has upgraded removal performance towards ECs, and the removal mechanisms generally follow two pathways: adsorption and catalytic degradation. Future efforts should focus on establishing standardized evaluation criteria for cost, effectiveness, and environmental risk, and leverage artificial intelligence to broaden the applications of modified biochar in ECs removal.
dc.language	en
dc.publisher	Elsevier
dc.relation	http://purl.org/au-research/grants/arc/DE200100970
dc.relation	http://purl.org/au-research/grants/arc/DP220101139
dc.relation	http://purl.org/au-research/grants/arc/DE220100530
dc.relation.ispartof	Chemical Engineering Journal
dc.relation.isbasedon	10.1016/j.cej.2023.147615
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0904 Chemical Engineering, 0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	Chemical Engineering
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4011 Environmental engineering
dc.subject.classification	4016 Materials engineering
dc.title	Removal of emerging contaminants (ECs) from aqueous solutions by modified biochar: A review
dc.type	Journal Article
utslib.citation.volume	479
utslib.for	0904 Chemical Engineering
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental 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
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	embargoed	*
utslib.copyright.embargo	2025-11-01T00:00:00+1000Z
dc.date.updated	2024-01-12T05:30:29Z
pubs.publication-status	Published
pubs.volume	479

Abstract:

The increasing concern over emerging contaminants (ECs) in aqueous solutions is driven by their potential risks to public health. Handling ECs becomes an urgent mission in the world. Biochar has been applied for ECs removal in wastewater for its low cost and satisfactory efficiency, while its practical applications are hindered by the limited adsorption capacity. To improve the removal efficiency of biochar on ECs, diverse techniques (acid-base modification, metal compound modification, steam activation, magnetization, heteroatom doping, and ball milling) have been applied to modify biochar and imbue it with a range of physicochemical attributes. This leads to unique adsorption outcomes, behaviors, and mechanisms. Herein, effective modification methods, effects and mechanisms of modified biochar on the removal of typical ECs including per- and polyfluoroalkyl substances (PFASs), antibiotics and antibiotic resistance genes (ARGs), micro(nano)plastics, and endocrine disrupting compounds (EDCs) in aqueous solution have been systematically discussed. Modified biochar has upgraded removal performance towards ECs, and the removal mechanisms generally follow two pathways: adsorption and catalytic degradation. Future efforts should focus on establishing standardized evaluation criteria for cost, effectiveness, and environmental risk, and leverage artificial intelligence to broaden the applications of modified biochar in ECs removal.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/174390