Kinetic Modelling of the Photocatalytic Inactivation of Bacteria

Autores
Marugan, J.; Van Grieken, R.; Cassano, Alberto Enrique; Alfano, Orlando Mario
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This work analyzes the kinetic modelling of the photocatalytic inactivation of E. coli in water using different types of kinetic models; from an empirical equation to an intrinsic kinetic model including explicit radiation absorption effects. Simple empirical equations lead to lower fitting errors, but require a total of 12 parameters to reproduce the results of four inactivation curves when the catalyst concentration was increased. Moreover, these parameters have no physical meaning and cannot be extrapolated to different experimental conditions. The use of a pseudomechanistic model based on a simplified reaction mechanism reduces the number of required kinetic parameters to 6, being the kinetic constant the only parameter that depends on the catalyst concentration. Finally, a simple modification of a kinetic model based on the intrinsic mechanism of photocatalytic reactions including explicit radiation absorption effects achieved the fitting of all the experiments with only three parameters. The main advantage of this approach is that the kinetic parameters estimated for the model become independent of the irradiation form, as well as the reactor size and its geometrical configuration, providing the necessary information for scaling-up and design of commercial-scale photoreactors for water disinfection.
Fil: Marugan, J.. Universidad Rey Juan Carlos; España
Fil: Van Grieken, R.. Universidad Rey Juan Carlos; España
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral; Argentina
Fil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral; Argentina
Materia
Disinfection
Escherichia Coli
Kinetics
Photocatalysis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/13230
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/13230
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Kinetic Modelling of the Photocatalytic Inactivation of BacteriaMarugan, J.Van Grieken, R.Cassano, Alberto EnriqueAlfano, Orlando MarioDisinfectionEscherichia ColiKineticsPhotocatalysishttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2This work analyzes the kinetic modelling of the photocatalytic inactivation of E. coli in water using different types of kinetic models; from an empirical equation to an intrinsic kinetic model including explicit radiation absorption effects. Simple empirical equations lead to lower fitting errors, but require a total of 12 parameters to reproduce the results of four inactivation curves when the catalyst concentration was increased. Moreover, these parameters have no physical meaning and cannot be extrapolated to different experimental conditions. The use of a pseudomechanistic model based on a simplified reaction mechanism reduces the number of required kinetic parameters to 6, being the kinetic constant the only parameter that depends on the catalyst concentration. Finally, a simple modification of a kinetic model based on the intrinsic mechanism of photocatalytic reactions including explicit radiation absorption effects achieved the fitting of all the experiments with only three parameters. The main advantage of this approach is that the kinetic parameters estimated for the model become independent of the irradiation form, as well as the reactor size and its geometrical configuration, providing the necessary information for scaling-up and design of commercial-scale photoreactors for water disinfection.Fil: Marugan, J.. Universidad Rey Juan Carlos; EspañaFil: Van Grieken, R.. Universidad Rey Juan Carlos; EspañaFil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral; ArgentinaFil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral; ArgentinaIwa Publishing2010-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/13230Marugan, J.; Van Grieken, R.; Cassano, Alberto Enrique; Alfano, Orlando Mario; Kinetic Modelling of the Photocatalytic Inactivation of Bacteria; Iwa Publishing; Water Science And Technology; 61; 6; 3-2010; 1547-15530273-1223enginfo:eu-repo/semantics/altIdentifier/doi/10.2166/wst.2010.057info:eu-repo/semantics/altIdentifier/url/http://wst.iwaponline.com/content/61/6/1547info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:03:07Zoai:ri.conicet.gov.ar:11336/13230instacron: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 10:03:07.869CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Kinetic Modelling of the Photocatalytic Inactivation of Bacteria
title Kinetic Modelling of the Photocatalytic Inactivation of Bacteria
spellingShingle Kinetic Modelling of the Photocatalytic Inactivation of Bacteria
Marugan, J.
Disinfection
Escherichia Coli
Kinetics
Photocatalysis
title_short Kinetic Modelling of the Photocatalytic Inactivation of Bacteria
title_full Kinetic Modelling of the Photocatalytic Inactivation of Bacteria
title_fullStr Kinetic Modelling of the Photocatalytic Inactivation of Bacteria
title_full_unstemmed Kinetic Modelling of the Photocatalytic Inactivation of Bacteria
title_sort Kinetic Modelling of the Photocatalytic Inactivation of Bacteria
dc.creator.none.fl_str_mv Marugan, J.
Van Grieken, R.
Cassano, Alberto Enrique
Alfano, Orlando Mario
author Marugan, J.
author_facet Marugan, J.
Van Grieken, R.
Cassano, Alberto Enrique
Alfano, Orlando Mario
author_role author
author2 Van Grieken, R.
Cassano, Alberto Enrique
Alfano, Orlando Mario
author2_role author
author
author
dc.subject.none.fl_str_mv Disinfection
Escherichia Coli
Kinetics
Photocatalysis
topic Disinfection
Escherichia Coli
Kinetics
Photocatalysis
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 work analyzes the kinetic modelling of the photocatalytic inactivation of E. coli in water using different types of kinetic models; from an empirical equation to an intrinsic kinetic model including explicit radiation absorption effects. Simple empirical equations lead to lower fitting errors, but require a total of 12 parameters to reproduce the results of four inactivation curves when the catalyst concentration was increased. Moreover, these parameters have no physical meaning and cannot be extrapolated to different experimental conditions. The use of a pseudomechanistic model based on a simplified reaction mechanism reduces the number of required kinetic parameters to 6, being the kinetic constant the only parameter that depends on the catalyst concentration. Finally, a simple modification of a kinetic model based on the intrinsic mechanism of photocatalytic reactions including explicit radiation absorption effects achieved the fitting of all the experiments with only three parameters. The main advantage of this approach is that the kinetic parameters estimated for the model become independent of the irradiation form, as well as the reactor size and its geometrical configuration, providing the necessary information for scaling-up and design of commercial-scale photoreactors for water disinfection.
Fil: Marugan, J.. Universidad Rey Juan Carlos; España
Fil: Van Grieken, R.. Universidad Rey Juan Carlos; España
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral; Argentina
Fil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral; Argentina
description This work analyzes the kinetic modelling of the photocatalytic inactivation of E. coli in water using different types of kinetic models; from an empirical equation to an intrinsic kinetic model including explicit radiation absorption effects. Simple empirical equations lead to lower fitting errors, but require a total of 12 parameters to reproduce the results of four inactivation curves when the catalyst concentration was increased. Moreover, these parameters have no physical meaning and cannot be extrapolated to different experimental conditions. The use of a pseudomechanistic model based on a simplified reaction mechanism reduces the number of required kinetic parameters to 6, being the kinetic constant the only parameter that depends on the catalyst concentration. Finally, a simple modification of a kinetic model based on the intrinsic mechanism of photocatalytic reactions including explicit radiation absorption effects achieved the fitting of all the experiments with only three parameters. The main advantage of this approach is that the kinetic parameters estimated for the model become independent of the irradiation form, as well as the reactor size and its geometrical configuration, providing the necessary information for scaling-up and design of commercial-scale photoreactors for water disinfection.
publishDate 2010
dc.date.none.fl_str_mv 2010-03
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/11336/13230
Marugan, J.; Van Grieken, R.; Cassano, Alberto Enrique; Alfano, Orlando Mario; Kinetic Modelling of the Photocatalytic Inactivation of Bacteria; Iwa Publishing; Water Science And Technology; 61; 6; 3-2010; 1547-1553
0273-1223
url http://hdl.handle.net/11336/13230
identifier_str_mv Marugan, J.; Van Grieken, R.; Cassano, Alberto Enrique; Alfano, Orlando Mario; Kinetic Modelling of the Photocatalytic Inactivation of Bacteria; Iwa Publishing; Water Science And Technology; 61; 6; 3-2010; 1547-1553
0273-1223
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.2166/wst.2010.057
info:eu-repo/semantics/altIdentifier/url/http://wst.iwaponline.com/content/61/6/1547
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Iwa Publishing
publisher.none.fl_str_mv Iwa Publishing
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
_version_ 1842269783778656256
score 13.13397

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