Logo
 

Abertay Research Collections >
School of Science, Engineering & Technology >
Science Engineering & Technology Collection >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/166

View Statistics
Title: Mineralisation of 2,4-dichlorophenoxyacetic acid by acoustic or hydrodynamic cavitation in conjunction with the advanced Fenton process
Authors: Bremner, David H.
Di Carlo, Stefano
Chakinala, Anand G.
Cravotto, Giancarlo
Affiliation: University of Abertay Dundee. School of Contemporary Sciences
Keywords: Zero valent iron
Hydrogen peroxide
Total organic carbon
Advanced Fenton process
Cavitation
Issue Date: Apr-2008
Publisher: Elsevier Science B.V., Amsterdam
Type: Journal Article
Refereed: peer-reviewed
Rights: This is the author's final version of this article. Published version (c)Elsevier Science B.V., Amsterdam, available from 10.1016/j.ultsonch.2007.06.003
Citation: Bremner, D. H., et al. 2008. Mineralisation of 2,4-dichlorophenoxyacetic acid by acoustic or hydrodynamic cavitation in conjunction with the advanced Fenton process. Ultrasonics Sonochemistry. 15(4): pp.416-419. [Online] Available from: DOI: 10.1016/j.ultsonch.2007.06.003
Abstract: The mineralisation of 2,4-dichlorophenoxyacetic acid (2,4-D) in the presence of zero-valent iron and hydrogen peroxide (the Advanced Fenton process – AFP) whilst being subjected to acoustic or hydrodynamic cavitation is reported. If the reaction is merely stirred then there is 57% removal of TOC whilst on irradiation the figure is 64% although the latter reaction is more rapid. Use of ultrasound alone results in only 11% TOC removal in 60 min of treatment time. Addition of iron powder marginally enhances the extent of degradation but an appreciable increase is observed in the presence of hydrogen peroxide which acts as a source for hydroxyl radicals by Fenton chemistry as well as by dissociation in the presence of ultrasound. The use of hydrodynamic cavitation in conjunction with the advanced Fenton process has also been found to be a useful tool for continuous remediation of water contaminated with 2,4-D. After 20 minutes of treatment the residual TOC is reduced to 30% and this probably represents the remaining highly recalcitrant small organic molecules.
URI: http://hdl.handle.net/10373/166
ISSN: 1350-4177
Appears in Collections:Science Engineering & Technology Collection

Files in This Item:

File Description SizeFormat
BremnerUltrasonicsSono15.pdf104.11 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback