A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater

Autores
Zanello, Victoria; Scherger, Leonardo Ezequiel; Carbajo Castoldi, Micaela; Lexow, Claudio
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fuelling stations are one of the most important forms of soil and groundwater contamination in urban areas around the world. In this work, a mathematical model was applied to assess the risk of physical media contamination (water, air and soil). The model is based on the chemical fuel and hydrological properties of each site. The group of hydrocarbons selected for applying the model were monoaromatic hydrocarbons: benzene, toluene, ethylbenzene and xylenes (BTEX). A mathematical model was used to evaluate the behavior of each compound in each partitioning phase (non aqueous liquid phase, dissolved, volatile and retained). Furthermore, it was analyze which compound has more affinity for each phase. Finally, mass flux of BTEX reaching groundwater was calculated according to steady flow under two different conditions: (1) considering only sorption and volatilization, and (2) adding biodegradation. In this study, it could be demonstrated that modeling BTEX behavior in soil gave good results for urban areas. The methodology applied in this work could be extrapolated to any site of the world with the same problematic. Particularly, the model could be used to determine the distribution of BTEX in the soil profile. Moreover, results exhibit that dissolution is the main process affecting BTEX transport in areas containing reduced unsaturated zones (less than two meters). Otherwise, when water table is placed at deeper depths, contaminants are predominately retained in soil. In all cases, the lowest proportion of BTEX were in the volatile phase. Using this information, zones with high and low risk of contamination could be easily defined in the city of Bahia Blanca, Argentina.
Fil: Zanello, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Centro de Geología Aplicada, Agua y Medio Ambiente; Argentina
Fil: Scherger, Leonardo Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Carbajo Castoldi, Micaela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina
Fil: Lexow, Claudio. Universidad Nacional del Sur. Departamento de Geología; Argentina. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Centro de Geología Aplicada, Agua y Medio Ambiente; Argentina
Materia
MATHEMATICAL MODEL
FUELLING STATION
BTEX
RISK OF CONTAMINATION
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:11336/151782
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/151782
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwaterZanello, VictoriaScherger, Leonardo EzequielCarbajo Castoldi, MicaelaLexow, ClaudioMATHEMATICAL MODELFUELLING STATIONBTEXRISK OF CONTAMINATIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Fuelling stations are one of the most important forms of soil and groundwater contamination in urban areas around the world. In this work, a mathematical model was applied to assess the risk of physical media contamination (water, air and soil). The model is based on the chemical fuel and hydrological properties of each site. The group of hydrocarbons selected for applying the model were monoaromatic hydrocarbons: benzene, toluene, ethylbenzene and xylenes (BTEX). A mathematical model was used to evaluate the behavior of each compound in each partitioning phase (non aqueous liquid phase, dissolved, volatile and retained). Furthermore, it was analyze which compound has more affinity for each phase. Finally, mass flux of BTEX reaching groundwater was calculated according to steady flow under two different conditions: (1) considering only sorption and volatilization, and (2) adding biodegradation. In this study, it could be demonstrated that modeling BTEX behavior in soil gave good results for urban areas. The methodology applied in this work could be extrapolated to any site of the world with the same problematic. Particularly, the model could be used to determine the distribution of BTEX in the soil profile. Moreover, results exhibit that dissolution is the main process affecting BTEX transport in areas containing reduced unsaturated zones (less than two meters). Otherwise, when water table is placed at deeper depths, contaminants are predominately retained in soil. In all cases, the lowest proportion of BTEX were in the volatile phase. Using this information, zones with high and low risk of contamination could be easily defined in the city of Bahia Blanca, Argentina.Fil: Zanello, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Centro de Geología Aplicada, Agua y Medio Ambiente; ArgentinaFil: Scherger, Leonardo Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Geología; ArgentinaFil: Carbajo Castoldi, Micaela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; ArgentinaFil: Lexow, Claudio. Universidad Nacional del Sur. Departamento de Geología; Argentina. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Centro de Geología Aplicada, Agua y Medio Ambiente; ArgentinaUniversidade Federal da Paraiba2021-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/151782Zanello, Victoria; Scherger, Leonardo Ezequiel; Carbajo Castoldi, Micaela; Lexow, Claudio; A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater; Universidade Federal da Paraiba; Journal of Urban and Environmental Engineering; 15; 2; 12-2021; 117-1251982-3932CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://periodicos.ufpb.br/index.php/juee/article/view/51536/info:eu-repo/semantics/altIdentifier/doi/10.4090/juee.2021.v15n2.117125info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:59Zoai:ri.conicet.gov.ar:11336/151782instacron: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 09:45:59.353CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater
title A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater
spellingShingle A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater
Zanello, Victoria
MATHEMATICAL MODEL
FUELLING STATION
BTEX
RISK OF CONTAMINATION
title_short A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater
title_full A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater
title_fullStr A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater
title_full_unstemmed A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater
title_sort A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater
dc.creator.none.fl_str_mv Zanello, Victoria
Scherger, Leonardo Ezequiel
Carbajo Castoldi, Micaela
Lexow, Claudio
author Zanello, Victoria
author_facet Zanello, Victoria
Scherger, Leonardo Ezequiel
Carbajo Castoldi, Micaela
Lexow, Claudio
author_role author
author2 Scherger, Leonardo Ezequiel
Carbajo Castoldi, Micaela
Lexow, Claudio
author2_role author
author
author
dc.subject.none.fl_str_mv MATHEMATICAL MODEL
FUELLING STATION
BTEX
RISK OF CONTAMINATION
topic MATHEMATICAL MODEL
FUELLING STATION
BTEX
RISK OF CONTAMINATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Fuelling stations are one of the most important forms of soil and groundwater contamination in urban areas around the world. In this work, a mathematical model was applied to assess the risk of physical media contamination (water, air and soil). The model is based on the chemical fuel and hydrological properties of each site. The group of hydrocarbons selected for applying the model were monoaromatic hydrocarbons: benzene, toluene, ethylbenzene and xylenes (BTEX). A mathematical model was used to evaluate the behavior of each compound in each partitioning phase (non aqueous liquid phase, dissolved, volatile and retained). Furthermore, it was analyze which compound has more affinity for each phase. Finally, mass flux of BTEX reaching groundwater was calculated according to steady flow under two different conditions: (1) considering only sorption and volatilization, and (2) adding biodegradation. In this study, it could be demonstrated that modeling BTEX behavior in soil gave good results for urban areas. The methodology applied in this work could be extrapolated to any site of the world with the same problematic. Particularly, the model could be used to determine the distribution of BTEX in the soil profile. Moreover, results exhibit that dissolution is the main process affecting BTEX transport in areas containing reduced unsaturated zones (less than two meters). Otherwise, when water table is placed at deeper depths, contaminants are predominately retained in soil. In all cases, the lowest proportion of BTEX were in the volatile phase. Using this information, zones with high and low risk of contamination could be easily defined in the city of Bahia Blanca, Argentina.
Fil: Zanello, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Centro de Geología Aplicada, Agua y Medio Ambiente; Argentina
Fil: Scherger, Leonardo Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina
Fil: Carbajo Castoldi, Micaela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina
Fil: Lexow, Claudio. Universidad Nacional del Sur. Departamento de Geología; Argentina. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires. Centro de Geología Aplicada, Agua y Medio Ambiente; Argentina
description Fuelling stations are one of the most important forms of soil and groundwater contamination in urban areas around the world. In this work, a mathematical model was applied to assess the risk of physical media contamination (water, air and soil). The model is based on the chemical fuel and hydrological properties of each site. The group of hydrocarbons selected for applying the model were monoaromatic hydrocarbons: benzene, toluene, ethylbenzene and xylenes (BTEX). A mathematical model was used to evaluate the behavior of each compound in each partitioning phase (non aqueous liquid phase, dissolved, volatile and retained). Furthermore, it was analyze which compound has more affinity for each phase. Finally, mass flux of BTEX reaching groundwater was calculated according to steady flow under two different conditions: (1) considering only sorption and volatilization, and (2) adding biodegradation. In this study, it could be demonstrated that modeling BTEX behavior in soil gave good results for urban areas. The methodology applied in this work could be extrapolated to any site of the world with the same problematic. Particularly, the model could be used to determine the distribution of BTEX in the soil profile. Moreover, results exhibit that dissolution is the main process affecting BTEX transport in areas containing reduced unsaturated zones (less than two meters). Otherwise, when water table is placed at deeper depths, contaminants are predominately retained in soil. In all cases, the lowest proportion of BTEX were in the volatile phase. Using this information, zones with high and low risk of contamination could be easily defined in the city of Bahia Blanca, Argentina.
publishDate 2021
dc.date.none.fl_str_mv 2021-12
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/11336/151782
Zanello, Victoria; Scherger, Leonardo Ezequiel; Carbajo Castoldi, Micaela; Lexow, Claudio; A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater; Universidade Federal da Paraiba; Journal of Urban and Environmental Engineering; 15; 2; 12-2021; 117-125
1982-3932
CONICET Digital
CONICET
url http://hdl.handle.net/11336/151782
identifier_str_mv Zanello, Victoria; Scherger, Leonardo Ezequiel; Carbajo Castoldi, Micaela; Lexow, Claudio; A theoretical model for predicting the behaviour of btex in the unsaturated zone and groundwater; Universidade Federal da Paraiba; Journal of Urban and Environmental Engineering; 15; 2; 12-2021; 117-125
1982-3932
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://periodicos.ufpb.br/index.php/juee/article/view/51536/
info:eu-repo/semantics/altIdentifier/doi/10.4090/juee.2021.v15n2.117125
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 Universidade Federal da Paraiba
publisher.none.fl_str_mv Universidade Federal da Paraiba
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_ 1842268766366334976
score 13.13397

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