Advances in As contamination and adsorption in soil for effective management.

Nguyen, KT; Ahmed, MB; Mojiri, A; Huang, Y; Zhou, JL; Li, D

Advances in As contamination and adsorption in soil for effective management.

Nguyen, KT Ahmed, MB Mojiri, A Huang, Y

Zhou, JL Li, D

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Publisher:: ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: J Environ Manage, 2021, 296, pp. 113274
Issue Date:: 2021-10-15

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Field	Value	Language
dc.contributor.author	Nguyen, KT
dc.contributor.author	Ahmed, MB
dc.contributor.author	Mojiri, A
dc.contributor.author	Huang, Y https://orcid.org/0000-0001-9800-8788
dc.contributor.author	Zhou, JL
dc.contributor.author	Li, D
dc.date.accessioned	2022-03-09T06:20:40Z
dc.date.available	2021-07-10
dc.date.available	2022-03-09T06:20:40Z
dc.date.issued	2021-10-15
dc.identifier.citation	J Environ Manage, 2021, 296, pp. 113274
dc.identifier.issn	0301-4797
dc.identifier.issn	1095-8630
dc.identifier.uri	http://hdl.handle.net/10453/155108
dc.description.abstract	Arsenic (As) is a heavy metal that causes widespread contamination and toxicity in the soil environment. This article reviewed the levels of As contamination in soils worldwide, and evaluated how soil properties (pH, clay mineral, organic matter, texture) and environmental conditions (ionic strength, anions, bacteria) affected the adsorption of As species on soils. The application of the adsorption isotherm models for estimating the adsorption capacities of As(III) and As(V) on soils was assessed. The results indicated that As concentrations in contaminated soil varying significantly from 1 mg/kg to 116,000 mg/kg, with the highest concentrations being reported in Mexico with mining being the dominating source. Regarding the controlling factors of As adsorption, soil pH, clay mineral and texture had demonstrated the most significant impacts. Both Langmuir and Freundlich isotherm models can be well fitted with As(III) and As(V) adsorption on soils. The Langmuir adsorption capacity varied in the range of 22-42400 mg/kg for As(V), which is greater than 45-8901 mg/kg for As(III). The research findings have enhanced our knowledge of As contamination in soil and its underlying controls, which are critical for the effective management and remediation of As-contaminated soil.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
dc.relation.ispartof	J Environ Manage
dc.relation.isbasedon	10.1016/j.jenvman.2021.113274
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Environmental Sciences
dc.subject.mesh	Adsorption
dc.subject.mesh	Arsenic
dc.subject.mesh	Metals, Heavy
dc.subject.mesh	Soil
dc.subject.mesh	Soil Pollutants
dc.subject.mesh	Arsenic
dc.subject.mesh	Metals, Heavy
dc.subject.mesh	Soil
dc.subject.mesh	Soil Pollutants
dc.subject.mesh	Adsorption
dc.title	Advances in As contamination and adsorption in soil for effective management.
dc.type	Journal Article
utslib.citation.volume	296
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	2023-10-01T00:00:00+1000Z
dc.date.updated	2022-03-09T06:20:39Z
pubs.publication-status	Published
pubs.volume	296

Abstract:

Arsenic (As) is a heavy metal that causes widespread contamination and toxicity in the soil environment. This article reviewed the levels of As contamination in soils worldwide, and evaluated how soil properties (pH, clay mineral, organic matter, texture) and environmental conditions (ionic strength, anions, bacteria) affected the adsorption of As species on soils. The application of the adsorption isotherm models for estimating the adsorption capacities of As(III) and As(V) on soils was assessed. The results indicated that As concentrations in contaminated soil varying significantly from 1 mg/kg to 116,000 mg/kg, with the highest concentrations being reported in Mexico with mining being the dominating source. Regarding the controlling factors of As adsorption, soil pH, clay mineral and texture had demonstrated the most significant impacts. Both Langmuir and Freundlich isotherm models can be well fitted with As(III) and As(V) adsorption on soils. The Langmuir adsorption capacity varied in the range of 22-42400 mg/kg for As(V), which is greater than 45-8901 mg/kg for As(III). The research findings have enhanced our knowledge of As contamination in soil and its underlying controls, which are critical for the effective management and remediation of As-contaminated soil.

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http://hdl.handle.net/10453/155108