A continuous photocatalysis system in the degradation of herbicide

Areerachakul, N; Vigneswaran, S; Ngo, HH; Kandasamy, J

A continuous photocatalysis system in the degradation of herbicide

Areerachakul, N Vigneswaran, S

Ngo, HH

Kandasamy, J

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Publication Type:: Journal Article
Citation:: Korean Journal of Chemical Engineering, 2008, 25 (4), pp. 663 - 669
Issue Date:: 2008-07-01

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Field	Value	Language
dc.contributor.author	Areerachakul, N	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.issued	2008-07-01	en_US
dc.identifier.citation	Korean Journal of Chemical Engineering, 2008, 25 (4), pp. 663 - 669	en_US
dc.identifier.issn	0256-1115	en_US
dc.identifier.uri	http://hdl.handle.net/10453/9244
dc.description.abstract	The performance of both batch and continuous photo-catalytic reactors was studied to evaluate their capabilities in removing the sulfonyl urea herbicide of metsulfuron methyl (MM). It was found in a batch reactor that the addition of a small amount of powder activated carbon (PAC) significantly increased the rate of degradation of MM. The continuous photo-catalytic system resulted in 57% of MM removal. When a small dose of activated carbon was added in the photo-catalytic system, MM removal increased to 78-86% MM removal for retention times between of 5.25-21 min (corresponding to withdrawal rates of 10-40 mLmin-1). In this study, the pseudo first order rate constants of a continuous photo-catalytic system revealed that shorter retention times were associated with lower rate constants. Solid phase micro extraction/gas chromatography (SPME/GC) results showed that high concentrations of MM were broken down to small volatile organic compounds (VOCs) by photo-catalytic oxidation. PAC adsorbed the photo-products and increased the degradation of MM. © 2008 Springer.	en_US
dc.relation.ispartof	Korean Journal of Chemical Engineering	en_US
dc.relation.isbasedon	10.1007/s11814-008-0109-z	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	A continuous photocatalysis system in the degradation of herbicide	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	25	en_US
utslib.for	0907 Environmental Engineering	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0913 Mechanical 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	open_access
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	25	en_US

Abstract:

The performance of both batch and continuous photo-catalytic reactors was studied to evaluate their capabilities in removing the sulfonyl urea herbicide of metsulfuron methyl (MM). It was found in a batch reactor that the addition of a small amount of powder activated carbon (PAC) significantly increased the rate of degradation of MM. The continuous photo-catalytic system resulted in 57% of MM removal. When a small dose of activated carbon was added in the photo-catalytic system, MM removal increased to 78-86% MM removal for retention times between of 5.25-21 min (corresponding to withdrawal rates of 10-40 mLmin-1). In this study, the pseudo first order rate constants of a continuous photo-catalytic system revealed that shorter retention times were associated with lower rate constants. Solid phase micro extraction/gas chromatography (SPME/GC) results showed that high concentrations of MM were broken down to small volatile organic compounds (VOCs) by photo-catalytic oxidation. PAC adsorbed the photo-products and increased the degradation of MM. © 2008 Springer.

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http://hdl.handle.net/10453/9244