Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data

Autores
Marugán, Javier; Van Grieken, Rafael; Pablos, Cristina; Satuf, María Lucila; Cassano, Alberto Enrique; Alfano, Orlando Mario
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A model of a bench-scale, annular, continuous flow reactor for the photocatalytic disinfection of water, operated under conditions of no perfect mixing is presented. The performance of the photoreactor has been simulated following a predictive procedure, with no adjustable parameters, based on the intrinsic kinetics and the information about the geometry, irradiation source and operation conditions (catalysts concentration and its properties as well as the initial concentration of bacteria). The only experimental information required to be determined at laboratory scale are the kinetic parameters of a mechanistic model that takes into account the explicit dependence of the reaction rate with respect to the local volumetric rate of photon absorption (LVRPA) and the optical properties of the catalyst. The proposed model predicts an optimal catalyst concentration in the range 0.1–0.2 × 10−3 g cm−3, with a significant decrease in the disinfection efficiency for higher catalyst loadings. Important resistances to the mass transport are detected at high TiO2 concentrations, as a result of the low diffusion coefficient of the employed microorganism (Escherichia coli). Operating under the optimal catalyst concentration, model predictions show satisfactory agreement with experimental results extracted from the custom-built bench scale reactor.
Fil: Marugán, Javier. Universidad del Rey Juan Carlos; España
Fil: Van Grieken, Rafael. Universidad del Rey Juan Carlos; España
Fil: Pablos, Cristina. Universidad del Rey Juan Carlos; España
Fil: Satuf, María Lucila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); 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 (i); Argentina
Materia
DISINFECTION
E. COLI
KINETICS
MASS TRANSPORT
PHOTOCATALYSIS
PHOTOREACTOR
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:11336/1977
Acceder
id CONICETDig_e19ba1a744c8f0e233ec2816c09eea79
oai_identifier_str oai:ri.conicet.gov.ar:11336/1977
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic dataMarugán, JavierVan Grieken, RafaelPablos, CristinaSatuf, María LucilaCassano, Alberto EnriqueAlfano, Orlando MarioDISINFECTIONE. COLIKINETICSMASS TRANSPORTPHOTOCATALYSISPHOTOREACTORhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2A model of a bench-scale, annular, continuous flow reactor for the photocatalytic disinfection of water, operated under conditions of no perfect mixing is presented. The performance of the photoreactor has been simulated following a predictive procedure, with no adjustable parameters, based on the intrinsic kinetics and the information about the geometry, irradiation source and operation conditions (catalysts concentration and its properties as well as the initial concentration of bacteria). The only experimental information required to be determined at laboratory scale are the kinetic parameters of a mechanistic model that takes into account the explicit dependence of the reaction rate with respect to the local volumetric rate of photon absorption (LVRPA) and the optical properties of the catalyst. The proposed model predicts an optimal catalyst concentration in the range 0.1–0.2 × 10−3 g cm−3, with a significant decrease in the disinfection efficiency for higher catalyst loadings. Important resistances to the mass transport are detected at high TiO2 concentrations, as a result of the low diffusion coefficient of the employed microorganism (Escherichia coli). Operating under the optimal catalyst concentration, model predictions show satisfactory agreement with experimental results extracted from the custom-built bench scale reactor.Fil: Marugán, Javier. Universidad del Rey Juan Carlos; EspañaFil: Van Grieken, Rafael. Universidad del Rey Juan Carlos; EspañaFil: Pablos, Cristina. Universidad del Rey Juan Carlos; EspañaFil: Satuf, María Lucila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); ArgentinaFil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); 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 (i); ArgentinaElsevier Science SA2013-05-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/1977Marugán, Javier; Van Grieken, Rafael; Pablos, Cristina; Satuf, María Lucila; Cassano, Alberto Enrique; et al.; Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data; Elsevier Science SA; Chemical Engineering Journal; 224; 1; 15-5-2013; 39-451385-8947eng7th European Meeting on Solar Chemistry and Photocatalysis: Environmental Applications (SPEA7)info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894712015768info:eu-repo/semantics/altIdentifier/doi/doi:10.1016/j.cej.2012.11.082info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:02:13Zoai:ri.conicet.gov.ar:11336/1977instacron: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 10:02:13.309CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data
title Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data
spellingShingle Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data
Marugán, Javier
DISINFECTION
E. COLI
KINETICS
MASS TRANSPORT
PHOTOCATALYSIS
PHOTOREACTOR
title_short Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data
title_full Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data
title_fullStr Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data
title_full_unstemmed Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data
title_sort Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data
dc.creator.none.fl_str_mv Marugán, Javier
Van Grieken, Rafael
Pablos, Cristina
Satuf, María Lucila
Cassano, Alberto Enrique
Alfano, Orlando Mario
author Marugán, Javier
author_facet Marugán, Javier
Van Grieken, Rafael
Pablos, Cristina
Satuf, María Lucila
Cassano, Alberto Enrique
Alfano, Orlando Mario
author_role author
author2 Van Grieken, Rafael
Pablos, Cristina
Satuf, María Lucila
Cassano, Alberto Enrique
Alfano, Orlando Mario
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv DISINFECTION
E. COLI
KINETICS
MASS TRANSPORT
PHOTOCATALYSIS
PHOTOREACTOR
topic DISINFECTION
E. COLI
KINETICS
MASS TRANSPORT
PHOTOCATALYSIS
PHOTOREACTOR
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A model of a bench-scale, annular, continuous flow reactor for the photocatalytic disinfection of water, operated under conditions of no perfect mixing is presented. The performance of the photoreactor has been simulated following a predictive procedure, with no adjustable parameters, based on the intrinsic kinetics and the information about the geometry, irradiation source and operation conditions (catalysts concentration and its properties as well as the initial concentration of bacteria). The only experimental information required to be determined at laboratory scale are the kinetic parameters of a mechanistic model that takes into account the explicit dependence of the reaction rate with respect to the local volumetric rate of photon absorption (LVRPA) and the optical properties of the catalyst. The proposed model predicts an optimal catalyst concentration in the range 0.1–0.2 × 10−3 g cm−3, with a significant decrease in the disinfection efficiency for higher catalyst loadings. Important resistances to the mass transport are detected at high TiO2 concentrations, as a result of the low diffusion coefficient of the employed microorganism (Escherichia coli). Operating under the optimal catalyst concentration, model predictions show satisfactory agreement with experimental results extracted from the custom-built bench scale reactor.
Fil: Marugán, Javier. Universidad del Rey Juan Carlos; España
Fil: Van Grieken, Rafael. Universidad del Rey Juan Carlos; España
Fil: Pablos, Cristina. Universidad del Rey Juan Carlos; España
Fil: Satuf, María Lucila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); 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 (i); Argentina
description A model of a bench-scale, annular, continuous flow reactor for the photocatalytic disinfection of water, operated under conditions of no perfect mixing is presented. The performance of the photoreactor has been simulated following a predictive procedure, with no adjustable parameters, based on the intrinsic kinetics and the information about the geometry, irradiation source and operation conditions (catalysts concentration and its properties as well as the initial concentration of bacteria). The only experimental information required to be determined at laboratory scale are the kinetic parameters of a mechanistic model that takes into account the explicit dependence of the reaction rate with respect to the local volumetric rate of photon absorption (LVRPA) and the optical properties of the catalyst. The proposed model predicts an optimal catalyst concentration in the range 0.1–0.2 × 10−3 g cm−3, with a significant decrease in the disinfection efficiency for higher catalyst loadings. Important resistances to the mass transport are detected at high TiO2 concentrations, as a result of the low diffusion coefficient of the employed microorganism (Escherichia coli). Operating under the optimal catalyst concentration, model predictions show satisfactory agreement with experimental results extracted from the custom-built bench scale reactor.
publishDate 2013
dc.date.none.fl_str_mv 2013-05-15
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/11336/1977
Marugán, Javier; Van Grieken, Rafael; Pablos, Cristina; Satuf, María Lucila; Cassano, Alberto Enrique; et al.; Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data; Elsevier Science SA; Chemical Engineering Journal; 224; 1; 15-5-2013; 39-45
1385-8947
url http://hdl.handle.net/11336/1977
identifier_str_mv Marugán, Javier; Van Grieken, Rafael; Pablos, Cristina; Satuf, María Lucila; Cassano, Alberto Enrique; et al.; Modeling of a bench-scale photocatalytic reactor for water disinfection from laboratory-scale kinetic data; Elsevier Science SA; Chemical Engineering Journal; 224; 1; 15-5-2013; 39-45
1385-8947
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 7th European Meeting on Solar Chemistry and Photocatalysis: Environmental Applications (SPEA7)
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894712015768
info:eu-repo/semantics/altIdentifier/doi/doi:10.1016/j.cej.2012.11.082
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
dc.publisher.none.fl_str_mv Elsevier Science SA
publisher.none.fl_str_mv Elsevier Science SA
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_ 1842269744033431552
score 13.13397

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