Arsenic removal by iron oxide coated sponge: Experimental performance and mathematical models

Nguyen, TV; Vigneswaran, S; Ngo, HH; Kandasamy, J

Arsenic removal by iron oxide coated sponge: Experimental performance and mathematical models

Nguyen, TV

Vigneswaran, S

Ngo, HH

Kandasamy, J

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Publication Type:: Journal Article
Citation:: Journal of Hazardous Materials, 2010, 182 (1-3), pp. 723 - 729
Issue Date:: 2010-10-01

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Field	Value	Language
dc.contributor.author	Nguyen, TV https://orcid.org/0000-0003-3893-1217	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Kandasamy, J	en_US
dc.date.available	2010-06-22	en_US
dc.date.issued	2010-10-01	en_US
dc.identifier.citation	Journal of Hazardous Materials, 2010, 182 (1-3), pp. 723 - 729	en_US
dc.identifier.issn	0304-3894	en_US
dc.identifier.uri	http://hdl.handle.net/10453/13551
dc.description.abstract	Millions of people worldwide are at risk from the presence of arsenic in groundwater. In this study, adsorption equilibrium and long term experiments were carried out to evaluate the performance of iron oxide coated sponge (IOCSp) in arsenic removal. It was found that maximum adsorption capacity of IOCSp for As(III) and As(V) calculated by Sips isotherm was 4.2 and 4.6. mg/g of IOCSp, respectively. A filter packed with small amount of 25. g IOCSp maintained a consistent arsenic removal efficiency of 95% from synthetic solution containing arsenic concentration of as high as 1000. μg/L. This produced a throughput volume of 153 and 178. L of water containing As(III) and As(V), respectively before any need for regeneration or disposal of IOCSp. IOCSp could be regenerated by washing it with NaOH solution. The dynamic (column) adsorption kinetics were successfully predicted by the Thomas and Nikolaidis modified models. © 2010 Elsevier B.V.	en_US
dc.relation	http://purl.org/au-research/grants/arc/LX0345566
dc.relation	http://purl.org/au-research/grants/arc/DP0450037
dc.relation.ispartof	Journal of Hazardous Materials	en_US
dc.relation.isbasedon	10.1016/j.jhazmat.2010.06.094	en_US
dc.subject.classification	Strategic, Defence & Security Studies	en_US
dc.subject.mesh	Arsenic	en_US
dc.subject.mesh	Ferric Compounds	en_US
dc.subject.mesh	Adsorption	en_US
dc.subject.mesh	Thermodynamics	en_US
dc.subject.mesh	Models, Theoretical	en_US
dc.title	Arsenic removal by iron oxide coated sponge: Experimental performance and mathematical models	en_US
dc.type	Journal Article
utslib.citation.volume	1-3	en_US
utslib.citation.volume	182	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	05 Environmental Sciences	en_US
utslib.for	09 Engineering	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.issue	1-3	en_US
pubs.publication-status	Published	en_US
pubs.volume	182	en_US

Abstract:

Millions of people worldwide are at risk from the presence of arsenic in groundwater. In this study, adsorption equilibrium and long term experiments were carried out to evaluate the performance of iron oxide coated sponge (IOCSp) in arsenic removal. It was found that maximum adsorption capacity of IOCSp for As(III) and As(V) calculated by Sips isotherm was 4.2 and 4.6. mg/g of IOCSp, respectively. A filter packed with small amount of 25. g IOCSp maintained a consistent arsenic removal efficiency of 95% from synthetic solution containing arsenic concentration of as high as 1000. μg/L. This produced a throughput volume of 153 and 178. L of water containing As(III) and As(V), respectively before any need for regeneration or disposal of IOCSp. IOCSp could be regenerated by washing it with NaOH solution. The dynamic (column) adsorption kinetics were successfully predicted by the Thomas and Nikolaidis modified models. © 2010 Elsevier B.V.

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http://hdl.handle.net/10453/13551