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New pilot-plant photo-fenton solar reactor for water decontamination / Jorgelina Farias in Industrial & engineering chemistry research, Vol. 49 N° 3 (Fevrier 2010)

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1265–1273 Titre : New pilot-plant photo-fenton solar reactor for water decontamination Type de document : texte imprimé Auteurs : Jorgelina Farias, Auteur ; Enrique D. Albizzati, Auteur ; Orlando M. Alfano, Auteur Année de publication : 2010 Article en page(s) : pp. 1265–1273 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : New  Pilot-Plant--Photo-Fenton--Solar  Reactor--Water--Decontamination Résumé : A theoretical and experimental study of a new pilot-plant solar reactor for the photo-Fenton treatment of waters containing toxic organic compounds is presented. This hybrid unit was designed and built to capture thermal and photochemical solar radiation, yielding higher degradation rates of a model pollutant. The mass and thermal energy balances and the radiative transfer equation are solved to compute the pollutant and hydrogen peroxide concentrations and the reaction temperature as a function of time. The spectral UV/visible and broadband solar radiation incident on the reactor window are estimated from a computational code: the Simple Model for the Atmospheric Radiative Transfer of Sunshine (SMARTS2) program. Under irradiated runs, an experimental temperature increase up to 25 °C is reached. Also, for a reaction time of 180 min and a relatively low iron concentration, the combined effect of UV/visible and thermal sunlight is able to degrade 98.2% of the initial pollutant concentration. ISSN : 0888-5885 [article] New pilot-plant photo-fenton solar reactor for water decontamination [texte imprimé] / Jorgelina Farias, Auteur ; Enrique D. Albizzati, Auteur ; Orlando M. Alfano, Auteur . - 2010 . - pp. 1265–1273. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1265–1273 Mots-clés : New  Pilot-Plant--Photo-Fenton--Solar  Reactor--Water--Decontamination Résumé : A theoretical and experimental study of a new pilot-plant solar reactor for the photo-Fenton treatment of waters containing toxic organic compounds is presented. This hybrid unit was designed and built to capture thermal and photochemical solar radiation, yielding higher degradation rates of a model pollutant. The mass and thermal energy balances and the radiative transfer equation are solved to compute the pollutant and hydrogen peroxide concentrations and the reaction temperature as a function of time. The spectral UV/visible and broadband solar radiation incident on the reactor window are estimated from a computational code: the Simple Model for the Atmospheric Radiative Transfer of Sunshine (SMARTS2) program. Under irradiated runs, an experimental temperature increase up to 25 °C is reached. Also, for a reaction time of 180 min and a relatively low iron concentration, the combined effect of UV/visible and thermal sunlight is able to degrade 98.2% of the initial pollutant concentration. ISSN : 0888-5885

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]  in Industrial & 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