Determination of specific LNAPL volumes in soils having a multimodal pore-size distribution
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jenvman.2019.02.077 http://hdl.handle.net/11449/187444 |
Resumo: | In this paper we present modifications to previously published models for determining the specific volume of non-aqueous phase liquids (LNAPLs) in the subsurface at and near the groundwater table following a spill or leak from the soil surface. The modifications account for porous media having multimodal pore-size distributions as is often the case with tropical soils. Data from the literature are used to show that the use of multimodal pore-size distributions can lead to significantly different subsurface LNAPL specific volume predictions and possible LNAPL recovery rates, compared to when only unimodal pore-size distributions are considered. Differences of up to 200% are possible when the dual-porosity nature of the pore system is ignored, which can yield erroneous estimates of the time needed to remediate LNAPLs from contaminated areas when conventional systems are employed. |
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Repositório Institucional da UNESP |
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2946 |
spelling |
Determination of specific LNAPL volumes in soils having a multimodal pore-size distributionFree LNAPLLDRMMultimodal pore systemsRecoverable LNAPLIn this paper we present modifications to previously published models for determining the specific volume of non-aqueous phase liquids (LNAPLs) in the subsurface at and near the groundwater table following a spill or leak from the soil surface. The modifications account for porous media having multimodal pore-size distributions as is often the case with tropical soils. Data from the literature are used to show that the use of multimodal pore-size distributions can lead to significantly different subsurface LNAPL specific volume predictions and possible LNAPL recovery rates, compared to when only unimodal pore-size distributions are considered. Differences of up to 200% are possible when the dual-porosity nature of the pore system is ignored, which can yield erroneous estimates of the time needed to remediate LNAPLs from contaminated areas when conventional systems are employed.Universidade Estadual PaulistaDepartment of Applied Geology and Center for Environmental Studies São Paulo State University UNESPDepartment of Nuclear Engineering Federal University of Rio de Janeiro UFRJDepartment of Applied Geology and Center for Environmental Studies São Paulo State University UNESPUniversidade Estadual Paulista (Unesp)Universidade Federal do Rio de Janeiro (UFRJ)Alfaro Soto, Miguel A. [UNESP]Lenhard, RobertChang, Hung K. [UNESP]van Genuchten, Martinus Th [UNESP]2019-10-06T15:36:19Z2019-10-06T15:36:19Z2019-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article576-584http://dx.doi.org/10.1016/j.jenvman.2019.02.077Journal of Environmental Management, v. 237, p. 576-584.1095-86300301-4797http://hdl.handle.net/11449/18744410.1016/j.jenvman.2019.02.0772-s2.0-850626972821989662459244838Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Environmental Managementinfo:eu-repo/semantics/openAccess2021-10-23T20:19:07Zoai:repositorio.unesp.br:11449/187444Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T20:19:07Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Determination of specific LNAPL volumes in soils having a multimodal pore-size distribution |
title |
Determination of specific LNAPL volumes in soils having a multimodal pore-size distribution |
spellingShingle |
Determination of specific LNAPL volumes in soils having a multimodal pore-size distribution Alfaro Soto, Miguel A. [UNESP] Free LNAPL LDRM Multimodal pore systems Recoverable LNAPL |
title_short |
Determination of specific LNAPL volumes in soils having a multimodal pore-size distribution |
title_full |
Determination of specific LNAPL volumes in soils having a multimodal pore-size distribution |
title_fullStr |
Determination of specific LNAPL volumes in soils having a multimodal pore-size distribution |
title_full_unstemmed |
Determination of specific LNAPL volumes in soils having a multimodal pore-size distribution |
title_sort |
Determination of specific LNAPL volumes in soils having a multimodal pore-size distribution |
author |
Alfaro Soto, Miguel A. [UNESP] |
author_facet |
Alfaro Soto, Miguel A. [UNESP] Lenhard, Robert Chang, Hung K. [UNESP] van Genuchten, Martinus Th [UNESP] |
author_role |
author |
author2 |
Lenhard, Robert Chang, Hung K. [UNESP] van Genuchten, Martinus Th [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal do Rio de Janeiro (UFRJ) |
dc.contributor.author.fl_str_mv |
Alfaro Soto, Miguel A. [UNESP] Lenhard, Robert Chang, Hung K. [UNESP] van Genuchten, Martinus Th [UNESP] |
dc.subject.por.fl_str_mv |
Free LNAPL LDRM Multimodal pore systems Recoverable LNAPL |
topic |
Free LNAPL LDRM Multimodal pore systems Recoverable LNAPL |
description |
In this paper we present modifications to previously published models for determining the specific volume of non-aqueous phase liquids (LNAPLs) in the subsurface at and near the groundwater table following a spill or leak from the soil surface. The modifications account for porous media having multimodal pore-size distributions as is often the case with tropical soils. Data from the literature are used to show that the use of multimodal pore-size distributions can lead to significantly different subsurface LNAPL specific volume predictions and possible LNAPL recovery rates, compared to when only unimodal pore-size distributions are considered. Differences of up to 200% are possible when the dual-porosity nature of the pore system is ignored, which can yield erroneous estimates of the time needed to remediate LNAPLs from contaminated areas when conventional systems are employed. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T15:36:19Z 2019-10-06T15:36:19Z 2019-05-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.jenvman.2019.02.077 Journal of Environmental Management, v. 237, p. 576-584. 1095-8630 0301-4797 http://hdl.handle.net/11449/187444 10.1016/j.jenvman.2019.02.077 2-s2.0-85062697282 1989662459244838 |
url |
http://dx.doi.org/10.1016/j.jenvman.2019.02.077 http://hdl.handle.net/11449/187444 |
identifier_str_mv |
Journal of Environmental Management, v. 237, p. 576-584. 1095-8630 0301-4797 10.1016/j.jenvman.2019.02.077 2-s2.0-85062697282 1989662459244838 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Environmental Management |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
576-584 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965346229125120 |