Photo - fenton degradation of the herbicide 2,4 - dichlorophenoxyacetic acid in laboratory and solar pilot - plant reactors / Leandro O. Conte in Industrial & engineering chemistry research, Vol. 51 N° 11 (Mars 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 11 (Mars 2012) . - pp. 4181–4191 Titre : Photo - fenton degradation of the herbicide 2,4 - dichlorophenoxyacetic acid in laboratory and solar pilot - plant reactors Type de document : texte imprimé Auteurs : Leandro O. Conte, Auteur ; Jorgelina Farias, Auteur ; Enrique D. Albizzati, Auteur Année de publication : 2012 Article en page(s) : pp. 4181–4191 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Solar reactor Photo fenton degradation Résumé : A theoretical and experimental study of a pilot-plant solar reactor for the photo-Fenton degradation of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) in aqueous solution is presented. Initially, a kinetic model is proposed to obtain the reaction rates of 2,4-D, the main intermediate (2,4-dichlorophenol), and the hydrogen peroxide. The kinetic study was performed in a well-stirred tank laboratory reactor. The effects of ferric salt initial concentrations, hydrogen peroxide to 2,4-D initial concentration ratios, reaction temperatures, and radiation levels are studied. The proposed kinetic model and the experimental data are used to estimate the kinetic parameters, applying a nonlinear regression procedure. Afterward, the kinetic model is used to predict the reactant concentrations during the photo-Fenton degradation in a pilot-plant solar reactor designed to capture the UV/visible/IR solar radiation. The solar reactor was able to reach a complete degradation of the 2,4-D and 2,4-dichlorophenol after 60 min, and a total organic carbon conversion of 98.9% after 210 min. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie2023228 [article] Photo - fenton degradation of the herbicide 2,4 - dichlorophenoxyacetic acid in laboratory and solar pilot - plant reactors [texte imprimé] / Leandro O. Conte, Auteur ; Jorgelina Farias, Auteur ; Enrique D. Albizzati, Auteur . - 2012 . - pp. 4181–4191. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 11 (Mars 2012) . - pp. 4181–4191 Mots-clés : Solar reactor Photo fenton degradation Résumé : A theoretical and experimental study of a pilot-plant solar reactor for the photo-Fenton degradation of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) in aqueous solution is presented. Initially, a kinetic model is proposed to obtain the reaction rates of 2,4-D, the main intermediate (2,4-dichlorophenol), and the hydrogen peroxide. The kinetic study was performed in a well-stirred tank laboratory reactor. The effects of ferric salt initial concentrations, hydrogen peroxide to 2,4-D initial concentration ratios, reaction temperatures, and radiation levels are studied. The proposed kinetic model and the experimental data are used to estimate the kinetic parameters, applying a nonlinear regression procedure. Afterward, the kinetic model is used to predict the reactant concentrations during the photo-Fenton degradation in a pilot-plant solar reactor designed to capture the UV/visible/IR solar radiation. The solar reactor was able to reach a complete degradation of the 2,4-D and 2,4-dichlorophenol after 60 min, and a total organic carbon conversion of 98.9% after 210 min. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie2023228

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