Kinetics of Bacteria Inactivation Under Clear Water Conditions

Autores
Labas, Marisol Daniela; Brandi, Rodolfo Juan; Martin, Carlos Alberto; Cassano, Alberto Enrique
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Microbiologically contaminatedwater, in this case artificially infected with Escherichia coliwas treated with lowwavelength (253.7 nm) radiation in a laboratory reactor where all the significant operating variables were carefully measured and controlled.Amodification of the series-event model was used to interpret the experimental data which were collected employing four different levels of the incident radiation arriving at the reactor. The developed model is based on a rather complex dependence with respect to the E. coli concentration and to the radiation that is effectively absorbed by the bacteria which was precisely quantified. The mathematical description of the kinetics has three parameters: (i) the threshold limit of bacteria damage (n = 2), (ii) the kinetic constant [k = 9.03±0.36 s-1(cm3W-1)m] and (iii) the reaction order with respect to the bacteria photonic absorption rate (m= 0.205±0.015). About 99.99% plus inactivation was reached in all cases for rather short effective contact times and predictions from the model agree very well with experimental data in the whole range of investigated variables.
Fil: Labas, Marisol Daniela. 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: Brandi, Rodolfo Juan. 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: Martin, Carlos Alberto. 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: Cassano, Alberto Enrique. 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
Uv
Disinfection
Reactor
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:11336/21456
Acceder
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spelling Kinetics of Bacteria Inactivation Under Clear Water ConditionsLabas, Marisol DanielaBrandi, Rodolfo JuanMartin, Carlos AlbertoCassano, Alberto EnriqueUvDisinfectionReactorhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Microbiologically contaminatedwater, in this case artificially infected with Escherichia coliwas treated with lowwavelength (253.7 nm) radiation in a laboratory reactor where all the significant operating variables were carefully measured and controlled.Amodification of the series-event model was used to interpret the experimental data which were collected employing four different levels of the incident radiation arriving at the reactor. The developed model is based on a rather complex dependence with respect to the E. coli concentration and to the radiation that is effectively absorbed by the bacteria which was precisely quantified. The mathematical description of the kinetics has three parameters: (i) the threshold limit of bacteria damage (n = 2), (ii) the kinetic constant [k = 9.03±0.36 s-1(cm3W-1)m] and (iii) the reaction order with respect to the bacteria photonic absorption rate (m= 0.205±0.015). About 99.99% plus inactivation was reached in all cases for rather short effective contact times and predictions from the model agree very well with experimental data in the whole range of investigated variables.Fil: Labas, Marisol Daniela. 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: Brandi, Rodolfo Juan. 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: Martin, Carlos Alberto. 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: Cassano, Alberto Enrique. 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; ArgentinaElsevier Science Sa2006-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/21456Labas, Marisol Daniela; Brandi, Rodolfo Juan; Martin, Carlos Alberto; Cassano, Alberto Enrique; Kinetics of Bacteria Inactivation Under Clear Water Conditions; Elsevier Science Sa; Chemical Engineering Journal; 121; 2-3; 12-2006; 135-1451385-8947CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cej.2006.05.012info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894706002208info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:22:11Zoai:ri.conicet.gov.ar:11336/21456instacron: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:34982025-10-15 14:22:11.656CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Kinetics of Bacteria Inactivation Under Clear Water Conditions
title Kinetics of Bacteria Inactivation Under Clear Water Conditions
spellingShingle Kinetics of Bacteria Inactivation Under Clear Water Conditions
Labas, Marisol Daniela
Uv
Disinfection
Reactor
title_short Kinetics of Bacteria Inactivation Under Clear Water Conditions
title_full Kinetics of Bacteria Inactivation Under Clear Water Conditions
title_fullStr Kinetics of Bacteria Inactivation Under Clear Water Conditions
title_full_unstemmed Kinetics of Bacteria Inactivation Under Clear Water Conditions
title_sort Kinetics of Bacteria Inactivation Under Clear Water Conditions
dc.creator.none.fl_str_mv Labas, Marisol Daniela
Brandi, Rodolfo Juan
Martin, Carlos Alberto
Cassano, Alberto Enrique
author Labas, Marisol Daniela
author_facet Labas, Marisol Daniela
Brandi, Rodolfo Juan
Martin, Carlos Alberto
Cassano, Alberto Enrique
author_role author
author2 Brandi, Rodolfo Juan
Martin, Carlos Alberto
Cassano, Alberto Enrique
author2_role author
author
author
dc.subject.none.fl_str_mv Uv
Disinfection
Reactor
topic Uv
Disinfection
Reactor
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Microbiologically contaminatedwater, in this case artificially infected with Escherichia coliwas treated with lowwavelength (253.7 nm) radiation in a laboratory reactor where all the significant operating variables were carefully measured and controlled.Amodification of the series-event model was used to interpret the experimental data which were collected employing four different levels of the incident radiation arriving at the reactor. The developed model is based on a rather complex dependence with respect to the E. coli concentration and to the radiation that is effectively absorbed by the bacteria which was precisely quantified. The mathematical description of the kinetics has three parameters: (i) the threshold limit of bacteria damage (n = 2), (ii) the kinetic constant [k = 9.03±0.36 s-1(cm3W-1)m] and (iii) the reaction order with respect to the bacteria photonic absorption rate (m= 0.205±0.015). About 99.99% plus inactivation was reached in all cases for rather short effective contact times and predictions from the model agree very well with experimental data in the whole range of investigated variables.
Fil: Labas, Marisol Daniela. 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: Brandi, Rodolfo Juan. 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: Martin, Carlos Alberto. 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: Cassano, Alberto Enrique. 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 Microbiologically contaminatedwater, in this case artificially infected with Escherichia coliwas treated with lowwavelength (253.7 nm) radiation in a laboratory reactor where all the significant operating variables were carefully measured and controlled.Amodification of the series-event model was used to interpret the experimental data which were collected employing four different levels of the incident radiation arriving at the reactor. The developed model is based on a rather complex dependence with respect to the E. coli concentration and to the radiation that is effectively absorbed by the bacteria which was precisely quantified. The mathematical description of the kinetics has three parameters: (i) the threshold limit of bacteria damage (n = 2), (ii) the kinetic constant [k = 9.03±0.36 s-1(cm3W-1)m] and (iii) the reaction order with respect to the bacteria photonic absorption rate (m= 0.205±0.015). About 99.99% plus inactivation was reached in all cases for rather short effective contact times and predictions from the model agree very well with experimental data in the whole range of investigated variables.
publishDate 2006
dc.date.none.fl_str_mv 2006-12
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/11336/21456
Labas, Marisol Daniela; Brandi, Rodolfo Juan; Martin, Carlos Alberto; Cassano, Alberto Enrique; Kinetics of Bacteria Inactivation Under Clear Water Conditions; Elsevier Science Sa; Chemical Engineering Journal; 121; 2-3; 12-2006; 135-145
1385-8947
CONICET Digital
CONICET
url http://hdl.handle.net/11336/21456
identifier_str_mv Labas, Marisol Daniela; Brandi, Rodolfo Juan; Martin, Carlos Alberto; Cassano, Alberto Enrique; Kinetics of Bacteria Inactivation Under Clear Water Conditions; Elsevier Science Sa; Chemical Engineering Journal; 121; 2-3; 12-2006; 135-145
1385-8947
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.cej.2006.05.012
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1385894706002208
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
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