Progress in the preparation and application of modified biochar for improved contaminant removal from water and wastewater

Ahmed, MB; Zhou, JL; Ngo, HH; Guo, W; Chen, M

Progress in the preparation and application of modified biochar for improved contaminant removal from water and wastewater

Ahmed, MB

Zhou, JL

Ngo, HH

Guo, W

Chen, M

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2016, 214 pp. 836 - 851
Issue Date:: 2016-04-12

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Field	Value	Language
dc.contributor.author	Ahmed, MB https://orcid.org/0000-0003-4756-595X	en_US
dc.contributor.author	Zhou, JL https://orcid.org/0000-0003-1393-1608	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Chen, M	en_US
dc.date.available	2016-05-18	en_US
dc.date.issued	2016-04-12	en_US
dc.identifier.citation	Bioresource Technology, 2016, 214 pp. 836 - 851	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/44044
dc.description.abstract	© 2016 Elsevier Ltd Modified biochar (BC) is reviewed in its preparation, functionality, applications and regeneration. The nature of precursor materials, preparatory conditions and modification methods are key factors influencing BC properties. Steam activation is unsuitable for improving BC surface functionality compared with chemical modifications. Alkali-treated BC possesses the highest surface functionality. Both alkali modified BC and nanomaterial impregnated BC composites are highly favorable for enhancing the adsorption of different contaminants from wastewater. Acidic treatment provides more oxygenated functional groups on BC surfaces. The Langmuir isotherm model provides the best fit for sorption equilibria of heavy metals and anionic contaminants, while the Freundlich isotherm model is the best fit for emerging contaminants. The pseudo 2nd order is the most appropriate model of sorption kinetics for all contaminants. Future research should focus on industry-scale applications and hybrid systems for contaminant removal due to scarcity of data.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2016.05.057	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Charcoal	en_US
dc.subject.mesh	Water Pollutants, Chemical	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Adsorption	en_US
dc.subject.mesh	Recycling	en_US
dc.subject.mesh	Waste Water	en_US
dc.title	Progress in the preparation and application of modified biochar for improved contaminant removal from water and wastewater	en_US
dc.type	Journal Article
utslib.citation.volume	214	en_US
utslib.for	090404 Membrane and Separation Technologies	en_US
utslib.for	090703 Environmental Technologies	en_US
pubs.embargo.period	Not known	en_US
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
pubs.publication-status	Published	en_US
pubs.volume	214	en_US

Abstract:

© 2016 Elsevier Ltd Modified biochar (BC) is reviewed in its preparation, functionality, applications and regeneration. The nature of precursor materials, preparatory conditions and modification methods are key factors influencing BC properties. Steam activation is unsuitable for improving BC surface functionality compared with chemical modifications. Alkali-treated BC possesses the highest surface functionality. Both alkali modified BC and nanomaterial impregnated BC composites are highly favorable for enhancing the adsorption of different contaminants from wastewater. Acidic treatment provides more oxygenated functional groups on BC surfaces. The Langmuir isotherm model provides the best fit for sorption equilibria of heavy metals and anionic contaminants, while the Freundlich isotherm model is the best fit for emerging contaminants. The pseudo 2nd order is the most appropriate model of sorption kinetics for all contaminants. Future research should focus on industry-scale applications and hybrid systems for contaminant removal due to scarcity of data.

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http://hdl.handle.net/10453/44044