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Artículo

Ferrioxalate-assisted solar photo-Fenton degradation of a herbicide at pH conditions close to neutrality

Conte, Leandro OscarIcon ; Schenone, Agustina VioletaIcon ; Alfano, Orlando MarioIcon
Fecha de publicación: 03/2016
Editorial: Springer Heidelberg
Revista: Environmental Science And Pollution Research
ISSN: 0944-1344
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
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Resumen

The solar photo-Fenton degradation of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) in aqueous solution at a natural pH (pH = 5) using ferrioxalate as iron source was investigated. The kinetic model proposed and validated in a previous contribution was used to predict the reactants concentrations during the oxidation process in a non-concentrating pilot-plant solar reactor. The effects of hydrogen peroxide to 2,4-D initial concentration ratios (R), temperature, and radiation levels were studied. Furthermore, the spectral UV/visible and broadband solar radiation fluxes incident on the reactor window were evaluated by the Simple Model for the Atmospheric Radiative Transfer of Sunshine (SMARTS2) code. The complete destruction of 2,4-D and its main intermediate 2,4-dichlorophenol (2,4-DCP) was achieved in all the experimental runs in only 90 and 120 min of reaction, respectively. In agreement with these results, a reduction of toxicity in the system (expressed as % of inhibition of Vibrio fischeri) for longer times to 90 min of reaction was attained. It is important to emphasize the good agreement between kinetic model results and experimental data obtained.
Palabras clave: 2,4-D , Ferrioxalate , Neutral Ph , Solar Photo-Fenton
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/18579
URL: https://link.springer.com/article/10.1007/s11356-016-6400-3
DOI: http://dx.doi.org/10.1007/s11356-016-6400-3
Colecciones
Articulos(INTEC)
Articulos de INST.DE DES.TECNOL.PARA LA IND.QUIMICA (I)
Citación
Conte, Leandro Oscar; Schenone, Agustina Violeta; Alfano, Orlando Mario; Ferrioxalate-assisted solar photo-Fenton degradation of a herbicide at pH conditions close to neutrality; Springer Heidelberg; Environmental Science And Pollution Research; 24; 7; 3-2016; 6205-6212
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