Caregnato, P.; Rosso, JA.; Soler Escoda, JM.; Arques Sanz, A.; Martire, DO.; González, MC. (2013). Chloride anion effect on the advanced oxidation processes of methidathion and dimethoate: role of Cl2(center dot-) radical. Water Research. 47(1):351-362. https://doi.org/10.1016/j.watres.2012.10.018
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/51003
Title:
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Chloride anion effect on the advanced oxidation processes of methidathion and dimethoate: role of Cl2(center dot-) radical
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Author:
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Caregnato, Paula
Rosso, Janina A.
Soler Escoda, Juan Miguel
Arques Sanz, Antonio
Martire, Daniel O.
González, Mónica C.
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UPV Unit:
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Universitat Politècnica de València. Grupo de Procesos de Oxidación Avanzada
Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera
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Issued date:
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Abstract:
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The reaction of phosphor-containing pesticides such as methidathion (MT) and dimethoate (DM) with dichloride radical anions (Cl-2(center dot-)) was investigated. The second order rate constants (1.3 +/- 0.4) x 10(8) and ...[+]
The reaction of phosphor-containing pesticides such as methidathion (MT) and dimethoate (DM) with dichloride radical anions (Cl-2(center dot-)) was investigated. The second order rate constants (1.3 +/- 0.4) x 10(8) and (1.1 0.4) x 10(8) M-1 s(-1) were determined for the reaction of Cl-2(center dot-) with MT and DM, respectively. A reaction mechanism involving an initial charge transfer from the sulfide groups of the insecticides to Cl-2(center dot-) is proposed and supported by the identified transient intermediates and reaction products. The formation of chlorinated byproducts was determined. The unexpected consequences of an efficient Cl-2(center dot-) activity towards MT and DM on the degradation capacity by Advanced Oxidation Procedures applied to polluted waters containing the insecticides and Cl- anions is discussed. (C) 2012 Elsevier Ltd. All rights reserved.
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Subjects:
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Organophosphorous pesticides
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Degradation
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Chloride anion
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Flash-photolysis
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Chlorinated byproducts
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Water Research. (issn:
0043-1354
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DOI:
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10.1016/j.watres.2012.10.018
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Publisher:
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Elsevier
IWA Publishing
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Publisher version:
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http://dx.doi.org/10.1016/j.watres.2012.10.018
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Project ID:
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info:eu-repo/grantAgreement/MAEC//A%2F8199%2F07/
info:eu-repo/grantAgreement/ANPCyT//00308
info:eu-repo/grantAgreement/CONICET//PIP 11220080100356/
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Description:
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NOTICE: this is the author’s version of a work that was accepted for publication in Water Research. Changes resulting from the publishing process, such as peer review, editing, corrections,structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in WATER RESEARCH [VOL 47, ISSUE 1, (January 2013)]
DOI 10.1016/j.watres.2012.10.018¨
IWA Publishing : Set statement to accompany deposit, "©IWA Publishing 2013. The definitive peer-reviewed and edited version of this article is published in Water Research 47 1 351-362 2013 DOI 10.1016/j.watres.2012.10.018 and is available at www.iwapublishing.com."
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Thanks:
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This research was financially supported by Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Agencia Nacional de Promocion Cientifica y Tecnologica (Argentina, project PICT 2007 number 00308), and Agencia ...[+]
This research was financially supported by Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Agencia Nacional de Promocion Cientifica y Tecnologica (Argentina, project PICT 2007 number 00308), and Agencia Espanola de Cooperacion Internacional (project A/8199/07). MCG, JAR and PC are research members of Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Argentina. D.O.M. is a research member of CICPBA, Argentina. This research was supported by the grant PIP 112-200801-00356 from CONICET.
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Type:
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Artículo
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