Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils
- Autores
- Francisca, Franco Matias; Montoro, Marcos Alexis
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Immiscible displacement processes are of key importance in remediation actions of light nonaqueous phase liquid (LNAPL) contaminated soil and groundwater. LNAPLs remain trapped in soil pores after a spill or flushing process due to the interplay of viscous, gravity, and capillary forces. In this research immiscible displacement tests were conducted in homogenous and heterogeneous sand samples. Also, the influence of fine content, mineralogy, and wettability was evaluated by testing mixtures of coarse sand with silt, zeolite, bentonite, and hydrophobic sand. Obtained results highlight the importance of pore-scale heterogeneities on the resulting displacement pattern in macroscopically homogeneous samples, and show the preferential accumulation of LNAPLs at the interfaces between different materials in heterogeneous samples. Fine particle content shows no important consequences on residual saturation but significantly changes relative permeability. In addition, the presence of hydrophobic particles also modifies hydraulic conductivity and residual LNAPL saturation. Finally, relative permeability models were fitted to experimental data in order to estimate relative permeability of tested samples.
Fil: Francisca, Franco Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina
Fil: Montoro, Marcos Alexis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina - Materia
-
HETEROGENEITY
IMMISCIBLE DISPLACEMENT
LIGHT NONAQUEOUS PHASE LIQUID (LNAPL)
POROUS MEDIA
RELATIVE PERMEABILITY - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/180218
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CONICET Digital (CONICET) |
spelling |
Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soilsFrancisca, Franco MatiasMontoro, Marcos AlexisHETEROGENEITYIMMISCIBLE DISPLACEMENTLIGHT NONAQUEOUS PHASE LIQUID (LNAPL)POROUS MEDIARELATIVE PERMEABILITYhttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2Immiscible displacement processes are of key importance in remediation actions of light nonaqueous phase liquid (LNAPL) contaminated soil and groundwater. LNAPLs remain trapped in soil pores after a spill or flushing process due to the interplay of viscous, gravity, and capillary forces. In this research immiscible displacement tests were conducted in homogenous and heterogeneous sand samples. Also, the influence of fine content, mineralogy, and wettability was evaluated by testing mixtures of coarse sand with silt, zeolite, bentonite, and hydrophobic sand. Obtained results highlight the importance of pore-scale heterogeneities on the resulting displacement pattern in macroscopically homogeneous samples, and show the preferential accumulation of LNAPLs at the interfaces between different materials in heterogeneous samples. Fine particle content shows no important consequences on residual saturation but significantly changes relative permeability. In addition, the presence of hydrophobic particles also modifies hydraulic conductivity and residual LNAPL saturation. Finally, relative permeability models were fitted to experimental data in order to estimate relative permeability of tested samples.Fil: Francisca, Franco Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaFil: Montoro, Marcos Alexis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; ArgentinaAmerican Society of Civil Engineers2014-12info: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/11336/180218Francisca, Franco Matias; Montoro, Marcos Alexis; Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils; American Society of Civil Engineers; Journal Of Environmental Engineering; 141; 6; 12-2014; 1-120733-9372CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://ascelibrary.org/doi/10.1061/%28ASCE%29EE.1943-7870.0000915info:eu-repo/semantics/altIdentifier/doi/10.1061/(ASCE)EE.1943-7870.0000915info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:48:59Zoai:ri.conicet.gov.ar:11336/180218instacron: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:34982025-09-29 09:48:59.523CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils |
title |
Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils |
spellingShingle |
Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils Francisca, Franco Matias HETEROGENEITY IMMISCIBLE DISPLACEMENT LIGHT NONAQUEOUS PHASE LIQUID (LNAPL) POROUS MEDIA RELATIVE PERMEABILITY |
title_short |
Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils |
title_full |
Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils |
title_fullStr |
Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils |
title_full_unstemmed |
Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils |
title_sort |
Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils |
dc.creator.none.fl_str_mv |
Francisca, Franco Matias Montoro, Marcos Alexis |
author |
Francisca, Franco Matias |
author_facet |
Francisca, Franco Matias Montoro, Marcos Alexis |
author_role |
author |
author2 |
Montoro, Marcos Alexis |
author2_role |
author |
dc.subject.none.fl_str_mv |
HETEROGENEITY IMMISCIBLE DISPLACEMENT LIGHT NONAQUEOUS PHASE LIQUID (LNAPL) POROUS MEDIA RELATIVE PERMEABILITY |
topic |
HETEROGENEITY IMMISCIBLE DISPLACEMENT LIGHT NONAQUEOUS PHASE LIQUID (LNAPL) POROUS MEDIA RELATIVE PERMEABILITY |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.7 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
Immiscible displacement processes are of key importance in remediation actions of light nonaqueous phase liquid (LNAPL) contaminated soil and groundwater. LNAPLs remain trapped in soil pores after a spill or flushing process due to the interplay of viscous, gravity, and capillary forces. In this research immiscible displacement tests were conducted in homogenous and heterogeneous sand samples. Also, the influence of fine content, mineralogy, and wettability was evaluated by testing mixtures of coarse sand with silt, zeolite, bentonite, and hydrophobic sand. Obtained results highlight the importance of pore-scale heterogeneities on the resulting displacement pattern in macroscopically homogeneous samples, and show the preferential accumulation of LNAPLs at the interfaces between different materials in heterogeneous samples. Fine particle content shows no important consequences on residual saturation but significantly changes relative permeability. In addition, the presence of hydrophobic particles also modifies hydraulic conductivity and residual LNAPL saturation. Finally, relative permeability models were fitted to experimental data in order to estimate relative permeability of tested samples. Fil: Francisca, Franco Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina Fil: Montoro, Marcos Alexis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina |
description |
Immiscible displacement processes are of key importance in remediation actions of light nonaqueous phase liquid (LNAPL) contaminated soil and groundwater. LNAPLs remain trapped in soil pores after a spill or flushing process due to the interplay of viscous, gravity, and capillary forces. In this research immiscible displacement tests were conducted in homogenous and heterogeneous sand samples. Also, the influence of fine content, mineralogy, and wettability was evaluated by testing mixtures of coarse sand with silt, zeolite, bentonite, and hydrophobic sand. Obtained results highlight the importance of pore-scale heterogeneities on the resulting displacement pattern in macroscopically homogeneous samples, and show the preferential accumulation of LNAPLs at the interfaces between different materials in heterogeneous samples. Fine particle content shows no important consequences on residual saturation but significantly changes relative permeability. In addition, the presence of hydrophobic particles also modifies hydraulic conductivity and residual LNAPL saturation. Finally, relative permeability models were fitted to experimental data in order to estimate relative permeability of tested samples. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12 |
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/11336/180218 Francisca, Franco Matias; Montoro, Marcos Alexis; Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils; American Society of Civil Engineers; Journal Of Environmental Engineering; 141; 6; 12-2014; 1-12 0733-9372 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/180218 |
identifier_str_mv |
Francisca, Franco Matias; Montoro, Marcos Alexis; Influence of particle size distribution and wettability on the displacement of LNAPL in saturated sandy soils; American Society of Civil Engineers; Journal Of Environmental Engineering; 141; 6; 12-2014; 1-12 0733-9372 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://ascelibrary.org/doi/10.1061/%28ASCE%29EE.1943-7870.0000915 info:eu-repo/semantics/altIdentifier/doi/10.1061/(ASCE)EE.1943-7870.0000915 |
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 |
American Society of Civil Engineers |
publisher.none.fl_str_mv |
American Society of Civil Engineers |
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_ |
1844613519459221504 |
score |
13.070432 |