Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration

Autores
Farias, Jorgelina; Albizzati, Enrique Donato; Alfano, Orlando Mario
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study is focused on the kinetic modelling of the Fenton and photo-Fenton degradation of a model pollutant (formic acid) in aqueous solution, for relatively low iron concentrations (1–9 ppm). The reaction rate expressions are derived from an accepted reaction mechanism and explicitly having into account the local volumetric rate of photon absorption. The experimental work was performed in a well-stirred tank laboratory reactor irradiated from the bottom. Afterward, the proposed kinetic model and the experimental data were used to estimate the Arrhenius parameters between 20 and 55 °C, applying a non-linear regression procedure. To avoid the precipitation of iron compounds during the experimental runs, simultaneous high reaction temperatures (55 °C) and iron concentrations (9 ppm) were prevented. To achieve this goal, an experimental design based on the D-optimality criterion was adopted. The proposed kinetic model was able to reproduce the combined effects of changing the ferric iron concentrations, reaction temperatures, and formic acid to hydrogen peroxide molar ratios on the pollutant degradation rate. Kinetic model predictions are compared with experimental data of the organic compound conversion, and a good agreement is obtained. For the whole set of Fenton and photo-Fenton experimental runs, the maximum root mean square error is 7.64%.
Fil: Farias, Jorgelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Albizzati, Enrique Donato. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Materia
Photo-Fenton Reaction
Temperature Effect
Iron Concentration Effect
D-Optimal Design
Arrhenius Parameters
Formic Acid
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/24436
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/24436
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentrationFarias, JorgelinaAlbizzati, Enrique DonatoAlfano, Orlando MarioPhoto-Fenton ReactionTemperature EffectIron Concentration EffectD-Optimal DesignArrhenius ParametersFormic Acidhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2This study is focused on the kinetic modelling of the Fenton and photo-Fenton degradation of a model pollutant (formic acid) in aqueous solution, for relatively low iron concentrations (1–9 ppm). The reaction rate expressions are derived from an accepted reaction mechanism and explicitly having into account the local volumetric rate of photon absorption. The experimental work was performed in a well-stirred tank laboratory reactor irradiated from the bottom. Afterward, the proposed kinetic model and the experimental data were used to estimate the Arrhenius parameters between 20 and 55 °C, applying a non-linear regression procedure. To avoid the precipitation of iron compounds during the experimental runs, simultaneous high reaction temperatures (55 °C) and iron concentrations (9 ppm) were prevented. To achieve this goal, an experimental design based on the D-optimality criterion was adopted. The proposed kinetic model was able to reproduce the combined effects of changing the ferric iron concentrations, reaction temperatures, and formic acid to hydrogen peroxide molar ratios on the pollutant degradation rate. Kinetic model predictions are compared with experimental data of the organic compound conversion, and a good agreement is obtained. For the whole set of Fenton and photo-Fenton experimental runs, the maximum root mean square error is 7.64%.Fil: Farias, Jorgelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Albizzati, Enrique Donato. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaFil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaElsevier2009-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24436Farias, Jorgelina; Albizzati, Enrique Donato; Alfano, Orlando Mario; Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration; Elsevier; Catalysis Today; 144; 1-2; 2-2009; 117-1230920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2008.12.027info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0920586109000091info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:59:38Zoai:ri.conicet.gov.ar:11336/24436instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:59:38.714CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration
title Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration
spellingShingle Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration
Farias, Jorgelina
Photo-Fenton Reaction
Temperature Effect
Iron Concentration Effect
D-Optimal Design
Arrhenius Parameters
Formic Acid
title_short Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration
title_full Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration
title_fullStr Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration
title_full_unstemmed Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration
title_sort Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration
dc.creator.none.fl_str_mv Farias, Jorgelina
Albizzati, Enrique Donato
Alfano, Orlando Mario
author Farias, Jorgelina
author_facet Farias, Jorgelina
Albizzati, Enrique Donato
Alfano, Orlando Mario
author_role author
author2 Albizzati, Enrique Donato
Alfano, Orlando Mario
author2_role author
author
dc.subject.none.fl_str_mv Photo-Fenton Reaction
Temperature Effect
Iron Concentration Effect
D-Optimal Design
Arrhenius Parameters
Formic Acid
topic Photo-Fenton Reaction
Temperature Effect
Iron Concentration Effect
D-Optimal Design
Arrhenius Parameters
Formic Acid
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv This study is focused on the kinetic modelling of the Fenton and photo-Fenton degradation of a model pollutant (formic acid) in aqueous solution, for relatively low iron concentrations (1–9 ppm). The reaction rate expressions are derived from an accepted reaction mechanism and explicitly having into account the local volumetric rate of photon absorption. The experimental work was performed in a well-stirred tank laboratory reactor irradiated from the bottom. Afterward, the proposed kinetic model and the experimental data were used to estimate the Arrhenius parameters between 20 and 55 °C, applying a non-linear regression procedure. To avoid the precipitation of iron compounds during the experimental runs, simultaneous high reaction temperatures (55 °C) and iron concentrations (9 ppm) were prevented. To achieve this goal, an experimental design based on the D-optimality criterion was adopted. The proposed kinetic model was able to reproduce the combined effects of changing the ferric iron concentrations, reaction temperatures, and formic acid to hydrogen peroxide molar ratios on the pollutant degradation rate. Kinetic model predictions are compared with experimental data of the organic compound conversion, and a good agreement is obtained. For the whole set of Fenton and photo-Fenton experimental runs, the maximum root mean square error is 7.64%.
Fil: Farias, Jorgelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Albizzati, Enrique Donato. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
description This study is focused on the kinetic modelling of the Fenton and photo-Fenton degradation of a model pollutant (formic acid) in aqueous solution, for relatively low iron concentrations (1–9 ppm). The reaction rate expressions are derived from an accepted reaction mechanism and explicitly having into account the local volumetric rate of photon absorption. The experimental work was performed in a well-stirred tank laboratory reactor irradiated from the bottom. Afterward, the proposed kinetic model and the experimental data were used to estimate the Arrhenius parameters between 20 and 55 °C, applying a non-linear regression procedure. To avoid the precipitation of iron compounds during the experimental runs, simultaneous high reaction temperatures (55 °C) and iron concentrations (9 ppm) were prevented. To achieve this goal, an experimental design based on the D-optimality criterion was adopted. The proposed kinetic model was able to reproduce the combined effects of changing the ferric iron concentrations, reaction temperatures, and formic acid to hydrogen peroxide molar ratios on the pollutant degradation rate. Kinetic model predictions are compared with experimental data of the organic compound conversion, and a good agreement is obtained. For the whole set of Fenton and photo-Fenton experimental runs, the maximum root mean square error is 7.64%.
publishDate 2009
dc.date.none.fl_str_mv 2009-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/24436
Farias, Jorgelina; Albizzati, Enrique Donato; Alfano, Orlando Mario; Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration; Elsevier; Catalysis Today; 144; 1-2; 2-2009; 117-123
0920-5861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24436
identifier_str_mv Farias, Jorgelina; Albizzati, Enrique Donato; Alfano, Orlando Mario; Kinetic study of the photo-Fenton degradation of formic acid: Combined effects of temperature and iron concentration; Elsevier; Catalysis Today; 144; 1-2; 2-2009; 117-123
0920-5861
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2008.12.027
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0920586109000091
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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