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2D model of groundwater flow and total dissolved HCH transport through the Gállego alluvial aquifer downstream the Sardas landfill (Huesca, Spain)

Identificadores del recurso

Sobral, B., Samper, J., Montenegro, L., Mon, A., Guadaño, J., Gómez, J., ... & Fernández, J. (2024). 2D model of groundwater flow and total dissolved HCH transport through the GÁLLEGO alluvial aquifer downstream the SARDAS landfill (HUESCA, Spain). Journal of Contaminant Hydrology, 104370. https://doi.org/10.1016/j.jconhyd.2024.104370

http://hdl.handle.net/2183/40229

10.1016/j.jconhyd.2024.104370

Procedencia

(RUC. Repositorio da Universidade da Coruña)

Ficha

Título:: 2D model of groundwater flow and total dissolved HCH transport through the Gállego alluvial aquifer downstream the Sardas landfill (Huesca, Spain)
Tema:: Numerical model; Lindane; Contaminant transport; HCH; DNAPL-tidal effect
Descrición:: [Abstract:] The organic pollutants disposed at the Sardas landfill in Sabiñánigo (Huesca, northeastern Spain) by the INQUINOSA lindane factory have reached the Gállego alluvial aquifer and could affect the Sabiñánigo reservoir. The daily oscillations of the reservoir water level produce a tidal effect on the piezometric heads of the aquifer. These oscillations are transmitted in a damped way with a time lag, thus attesting that the silting sediments of the reservoir and the natural silts of the Gállego alluvial are interposed between the reservoir water and the layer of sands and gravels. A 2D finite element groundwater flow and total dissolved hexachlorocyclohexane (HCH) transport model through the Gállego alluvial aquifer is presented here. The flow model was constructed to: (1) Quantify the tidal effect, produced by the daily fluctuations of the reservoir water level on the aquifer; (2) Estimate the hydrodynamic parameters of the layer of sands and gravels; and 3) Estimate the vertical hydraulic conductivity of the silting sediments and silts; and (4) Quantify aquifer/reservoir interactions. The flow model reproduces the dynamics of the tidal effect and attests that groundwater velocity and flow direction changes daily in response to the oscillations of the reservoir level. Model results reproduce the measured well hydrographs and the Darcy velocity derived from tracer tests and confirm the validity of the conceptual model. The transport model of total dissolved HCH simulates the time evolution of the contaminant plume. The computed concentrations of total dissolved HCH and the contaminant mass outflux are very sensitive to changes in the source terms and the distribution coefficient, Kd of HCH. The best fit to the measured HCH plumes in September 2010 and December 2020 is obtained with a Kd ranging from 1 to 3 L/kg. The computed flux of dissolved HCH leaving the Sardas site in 2020 towards the Sabiñánigo reservoir ranges from 0.6 kg/year for Kd = 3 L/kg to 3.1 kg/year for Kd = 1 L/kg. The findings of this study will be most useful for planning and designing remedial and containment actions at the Sardas site and other similar lindane-affected sites.; This study was performed within the framework of research contracts funded by EMGRISA which was awarded a Contract by the Aragon Regional Government for the Hydrogeology of the Sardas landfill site and the Ebro River Authority. We acknowledge the support received from the Aragon Government (Elena Cano), EMGRISA, the Ebro Water District, the Spanish Ministry of Science and Innovation (PID2019-109544RB-I00), the Galician Regional Government (Grant ED431C2021/54) and the University of A Coruña. The work of the first author was funded by research contracts from Xunta de Galicia (Ref. ED481A) and the Spanish Government (Ref. FPU20/04135).; Xunta de Galicia; ED431C2021/54; Xunta de Galicia; ED481A
Idioma:: English
Relación:: info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109544RB-I00/ES/MODELOS DE TRANSPORTE DE MASA E INTERACCIONES GEOQUIMICAS EN INTERFACES HETEROGENEAS, IRREGULARES Y MULTIPLES EN MEDIOS POROSOS Y FRACTURADOS CON GRADIENTES HIDRAULICOS, TERMI; info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FPU20/04135; https://doi.org/10.1016/j.jconhyd.2024.104370
Autor/Produtor:: Sobral, Brais; Samper, Javier; Montenegro, Luis; Mon, Alba; Guadaño, Joaquín; Gómez Pérez, Jorge; San Román, Javier; Delgado, Felipe; Fernández Cascán, Jesús
Editor:: Elsevier
Otros colaboradores/productores:: Xestión Sostible dos Recursos Hídricos e do Chan (AQUATERRA)
Dereitos:: Atribución-NoComercial 4.0; http://creativecommons.org/licenses/by-nc/4.0/; info:eu-repo/semantics/openAccess
Data:: 2024
Tipo de recurso:: info:eu-repo/semantics/article

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1. < dc:title > 2D model of groundwater flow and total dissolved HCH transport through the Gállego alluvial aquifer downstream the Sardas landfill (Huesca, Spain) </ dc:title >
2. < dc:creator > Sobral, Brais </ dc:creator >
3. < dc:creator > Samper, Javier </ dc:creator >
4. < dc:creator > Montenegro, Luis </ dc:creator >
5. < dc:creator > Mon, Alba </ dc:creator >
6. < dc:creator > Guadaño, Joaquín </ dc:creator >
7. < dc:creator > Gómez Pérez, Jorge </ dc:creator >
8. < dc:creator > San Román, Javier </ dc:creator >
9. < dc:creator > Delgado, Felipe </ dc:creator >
10. < dc:creator > Fernández Cascán, Jesús </ dc:creator >
11. < dc:contributor > Xestión Sostible dos Recursos Hídricos e do Chan (AQUATERRA) </ dc:contributor >
12. < dc:subject > Numerical model </ dc:subject >
13. < dc:subject > Lindane </ dc:subject >
14. < dc:subject > Contaminant transport </ dc:subject >
15. < dc:subject > HCH </ dc:subject >
16. < dc:subject > DNAPL-tidal effect </ dc:subject >
17. < dc:description > [Abstract:] The organic pollutants disposed at the Sardas landfill in Sabiñánigo (Huesca, northeastern Spain) by the INQUINOSA lindane factory have reached the Gállego alluvial aquifer and could affect the Sabiñánigo reservoir. The daily oscillations of the reservoir water level produce a tidal effect on the piezometric heads of the aquifer. These oscillations are transmitted in a damped way with a time lag, thus attesting that the silting sediments of the reservoir and the natural silts of the Gállego alluvial are interposed between the reservoir water and the layer of sands and gravels. A 2D finite element groundwater flow and total dissolved hexachlorocyclohexane (HCH) transport model through the Gállego alluvial aquifer is presented here. The flow model was constructed to: (1) Quantify the tidal effect, produced by the daily fluctuations of the reservoir water level on the aquifer; (2) Estimate the hydrodynamic parameters of the layer of sands and gravels; and 3) Estimate the vertical hydraulic conductivity of the silting sediments and silts; and (4) Quantify aquifer/reservoir interactions. The flow model reproduces the dynamics of the tidal effect and attests that groundwater velocity and flow direction changes daily in response to the oscillations of the reservoir level. Model results reproduce the measured well hydrographs and the Darcy velocity derived from tracer tests and confirm the validity of the conceptual model. The transport model of total dissolved HCH simulates the time evolution of the contaminant plume. The computed concentrations of total dissolved HCH and the contaminant mass outflux are very sensitive to changes in the source terms and the distribution coefficient, Kd of HCH. The best fit to the measured HCH plumes in September 2010 and December 2020 is obtained with a Kd ranging from 1 to 3 L/kg. The computed flux of dissolved HCH leaving the Sardas site in 2020 towards the Sabiñánigo reservoir ranges from 0.6 kg/year for Kd = 3 L/kg to 3.1 kg/year for Kd = 1 L/kg. The findings of this study will be most useful for planning and designing remedial and containment actions at the Sardas site and other similar lindane-affected sites. </ dc:description >
18. < dc:description > This study was performed within the framework of research contracts funded by EMGRISA which was awarded a Contract by the Aragon Regional Government for the Hydrogeology of the Sardas landfill site and the Ebro River Authority. We acknowledge the support received from the Aragon Government (Elena Cano), EMGRISA, the Ebro Water District, the Spanish Ministry of Science and Innovation (PID2019-109544RB-I00), the Galician Regional Government (Grant ED431C2021/54) and the University of A Coruña. The work of the first author was funded by research contracts from Xunta de Galicia (Ref. ED481A) and the Spanish Government (Ref. FPU20/04135). </ dc:description >
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1. < title > 2D model of groundwater flow and total dissolved HCH transport through the Gállego alluvial aquifer downstream the Sardas landfill (Huesca, Spain) </ title >
2. < creator > Sobral, Brais </ creator >
3. < creator > Samper, Javier </ creator >
4. < creator > Montenegro, Luis </ creator >
5. < creator > Mon, Alba </ creator >
6. < creator > Guadaño, Joaquín </ creator >
7. < creator > Gómez Pérez, Jorge </ creator >
8. < creator > San Román, Javier </ creator >
9. < creator > Delgado, Felipe </ creator >
10. < creator > Fernández Cascán, Jesús </ creator >
11. < contributor > Xestión Sostible dos Recursos Hídricos e do Chan (AQUATERRA) </ contributor >
12. < subject > Numerical model </ subject >
13. < subject > Lindane </ subject >
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17. < description > [Abstract:] The organic pollutants disposed at the Sardas landfill in Sabiñánigo (Huesca, northeastern Spain) by the INQUINOSA lindane factory have reached the Gállego alluvial aquifer and could affect the Sabiñánigo reservoir. The daily oscillations of the reservoir water level produce a tidal effect on the piezometric heads of the aquifer. These oscillations are transmitted in a damped way with a time lag, thus attesting that the silting sediments of the reservoir and the natural silts of the Gállego alluvial are interposed between the reservoir water and the layer of sands and gravels. A 2D finite element groundwater flow and total dissolved hexachlorocyclohexane (HCH) transport model through the Gállego alluvial aquifer is presented here. The flow model was constructed to: (1) Quantify the tidal effect, produced by the daily fluctuations of the reservoir water level on the aquifer; (2) Estimate the hydrodynamic parameters of the layer of sands and gravels; and 3) Estimate the vertical hydraulic conductivity of the silting sediments and silts; and (4) Quantify aquifer/reservoir interactions. The flow model reproduces the dynamics of the tidal effect and attests that groundwater velocity and flow direction changes daily in response to the oscillations of the reservoir level. Model results reproduce the measured well hydrographs and the Darcy velocity derived from tracer tests and confirm the validity of the conceptual model. The transport model of total dissolved HCH simulates the time evolution of the contaminant plume. The computed concentrations of total dissolved HCH and the contaminant mass outflux are very sensitive to changes in the source terms and the distribution coefficient, Kd of HCH. The best fit to the measured HCH plumes in September 2010 and December 2020 is obtained with a Kd ranging from 1 to 3 L/kg. The computed flux of dissolved HCH leaving the Sardas site in 2020 towards the Sabiñánigo reservoir ranges from 0.6 kg/year for Kd = 3 L/kg to 3.1 kg/year for Kd = 1 L/kg. The findings of this study will be most useful for planning and designing remedial and containment actions at the Sardas site and other similar lindane-affected sites. </ description >
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1. < dc:title > 2D model of groundwater flow and total dissolved HCH transport through the Gállego alluvial aquifer downstream the Sardas landfill (Huesca, Spain) </ dc:title >
2. < dc:creator > Sobral, Brais </ dc:creator >
3. < dc:creator > Samper, Javier </ dc:creator >
4. < dc:creator > Montenegro, Luis </ dc:creator >
5. < dc:creator > Mon, Alba </ dc:creator >
6. < dc:creator > Guadaño, Joaquín </ dc:creator >
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12. < dc:subject > Numerical model </ dc:subject >
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15. < dc:subject > HCH </ dc:subject >
16. < dc:subject > DNAPL-tidal effect </ dc:subject >
17. < dcterms:abstract > [Abstract:] The organic pollutants disposed at the Sardas landfill in Sabiñánigo (Huesca, northeastern Spain) by the INQUINOSA lindane factory have reached the Gállego alluvial aquifer and could affect the Sabiñánigo reservoir. The daily oscillations of the reservoir water level produce a tidal effect on the piezometric heads of the aquifer. These oscillations are transmitted in a damped way with a time lag, thus attesting that the silting sediments of the reservoir and the natural silts of the Gállego alluvial are interposed between the reservoir water and the layer of sands and gravels. A 2D finite element groundwater flow and total dissolved hexachlorocyclohexane (HCH) transport model through the Gállego alluvial aquifer is presented here. The flow model was constructed to: (1) Quantify the tidal effect, produced by the daily fluctuations of the reservoir water level on the aquifer; (2) Estimate the hydrodynamic parameters of the layer of sands and gravels; and 3) Estimate the vertical hydraulic conductivity of the silting sediments and silts; and (4) Quantify aquifer/reservoir interactions. The flow model reproduces the dynamics of the tidal effect and attests that groundwater velocity and flow direction changes daily in response to the oscillations of the reservoir level. Model results reproduce the measured well hydrographs and the Darcy velocity derived from tracer tests and confirm the validity of the conceptual model. The transport model of total dissolved HCH simulates the time evolution of the contaminant plume. The computed concentrations of total dissolved HCH and the contaminant mass outflux are very sensitive to changes in the source terms and the distribution coefficient, Kd of HCH. The best fit to the measured HCH plumes in September 2010 and December 2020 is obtained with a Kd ranging from 1 to 3 L/kg. The computed flux of dissolved HCH leaving the Sardas site in 2020 towards the Sabiñánigo reservoir ranges from 0.6 kg/year for Kd = 3 L/kg to 3.1 kg/year for Kd = 1 L/kg. The findings of this study will be most useful for planning and designing remedial and containment actions at the Sardas site and other similar lindane-affected sites. </ dcterms:abstract >
18. < dcterms:dateAccepted > 2024-11-21T15:05:38Z </ dcterms:dateAccepted >
19. < dcterms:available > 2024-11-21T15:05:38Z </ dcterms:available >
20. < dcterms:created > 2024-11-21T15:05:38Z </ dcterms:created >
21. < dcterms:issued > 2024 </ dcterms:issued >
22. < dc:type > info:eu-repo/semantics/article </ dc:type >
23. < dc:identifier > Sobral, B., Samper, J., Montenegro, L., Mon, A., Guadaño, J., Gómez, J., ... & Fernández, J. (2024). 2D model of groundwater flow and total dissolved HCH transport through the GÁLLEGO alluvial aquifer downstream the SARDAS landfill (HUESCA, Spain). Journal of Contaminant Hydrology, 104370. https://doi.org/10.1016/j.jconhyd.2024.104370 </ dc:identifier >
24. < dc:identifier > http://hdl.handle.net/2183/40229 </ dc:identifier >
25. < dc:identifier > 10.1016/j.jconhyd.2024.104370 </ dc:identifier >
26. < dc:language > eng </ dc:language >
27. < dc:relation > https://doi.org/10.1016/j.jconhyd.2024.104370 </ dc:relation >
28. < dc:relation > info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109544RB-I00/ES/MODELOS DE TRANSPORTE DE MASA E INTERACCIONES GEOQUIMICAS EN INTERFACES HETEROGENEAS, IRREGULARES Y MULTIPLES EN MEDIOS POROSOS Y FRACTURADOS CON GRADIENTES HIDRAULICOS, TERMI </ dc:relation >
29. < dc:relation > info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FPU20/04135 </ dc:relation >
30. < dc:rights > http://creativecommons.org/licenses/by-nc/4.0/ </ dc:rights >
31. < dc:rights > info:eu-repo/semantics/openAccess </ dc:rights >
32. < dc:rights > Atribución-NoComercial 4.0 </ dc:rights >
33. < dc:publisher > Elsevier </ dc:publisher >
</ qdc:qualifieddc >

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1. < ow:Publication about =" oai:ruc.udc.es:2183/40229 " >
  1. < dc:title > 2D model of groundwater flow and total dissolved HCH transport through the Gállego alluvial aquifer downstream the Sardas landfill (Huesca, Spain) </ dc:title >
  2. < dc:creator > Sobral, Brais </ dc:creator >
  3. < dc:creator > Samper, Javier </ dc:creator >
  4. < dc:creator > Montenegro, Luis </ dc:creator >
  5. < dc:creator > Mon, Alba </ dc:creator >
  6. < dc:creator > Guadaño, Joaquín </ dc:creator >
  7. < dc:creator > Gómez Pérez, Jorge </ dc:creator >
  8. < dc:creator > San Román, Javier </ dc:creator >
  9. < dc:creator > Delgado, Felipe </ dc:creator >
  10. < dc:creator > Fernández Cascán, Jesús </ dc:creator >
  11. < dc:contributor > Xestión Sostible dos Recursos Hídricos e do Chan (AQUATERRA) </ dc:contributor >
  12. < dc:subject > Numerical model </ dc:subject >
  13. < dc:subject > Lindane </ dc:subject >
  14. < dc:subject > Contaminant transport </ dc:subject >
  15. < dc:subject > HCH </ dc:subject >
  16. < dc:subject > DNAPL-tidal effect </ dc:subject >
  17. < dc:description > [Abstract:] The organic pollutants disposed at the Sardas landfill in Sabiñánigo (Huesca, northeastern Spain) by the INQUINOSA lindane factory have reached the Gállego alluvial aquifer and could affect the Sabiñánigo reservoir. The daily oscillations of the reservoir water level produce a tidal effect on the piezometric heads of the aquifer. These oscillations are transmitted in a damped way with a time lag, thus attesting that the silting sediments of the reservoir and the natural silts of the Gállego alluvial are interposed between the reservoir water and the layer of sands and gravels. A 2D finite element groundwater flow and total dissolved hexachlorocyclohexane (HCH) transport model through the Gállego alluvial aquifer is presented here. The flow model was constructed to: (1) Quantify the tidal effect, produced by the daily fluctuations of the reservoir water level on the aquifer; (2) Estimate the hydrodynamic parameters of the layer of sands and gravels; and 3) Estimate the vertical hydraulic conductivity of the silting sediments and silts; and (4) Quantify aquifer/reservoir interactions. The flow model reproduces the dynamics of the tidal effect and attests that groundwater velocity and flow direction changes daily in response to the oscillations of the reservoir level. Model results reproduce the measured well hydrographs and the Darcy velocity derived from tracer tests and confirm the validity of the conceptual model. The transport model of total dissolved HCH simulates the time evolution of the contaminant plume. The computed concentrations of total dissolved HCH and the contaminant mass outflux are very sensitive to changes in the source terms and the distribution coefficient, Kd of HCH. The best fit to the measured HCH plumes in September 2010 and December 2020 is obtained with a Kd ranging from 1 to 3 L/kg. The computed flux of dissolved HCH leaving the Sardas site in 2020 towards the Sabiñánigo reservoir ranges from 0.6 kg/year for Kd = 3 L/kg to 3.1 kg/year for Kd = 1 L/kg. The findings of this study will be most useful for planning and designing remedial and containment actions at the Sardas site and other similar lindane-affected sites. </ dc:description >
  18. < dc:date > 2024-11-21T15:05:38Z </ dc:date >
  19. < dc:date > 2024-11-21T15:05:38Z </ dc:date >
  20. < dc:date > 2024 </ dc:date >
  21. < dc:type > info:eu-repo/semantics/article </ dc:type >
  22. < dc:identifier > Sobral, B., Samper, J., Montenegro, L., Mon, A., Guadaño, J., Gómez, J., ... & Fernández, J. (2024). 2D model of groundwater flow and total dissolved HCH transport through the GÁLLEGO alluvial aquifer downstream the SARDAS landfill (HUESCA, Spain). Journal of Contaminant Hydrology, 104370. https://doi.org/10.1016/j.jconhyd.2024.104370 </ dc:identifier >
  23. < dc:identifier > http://hdl.handle.net/2183/40229 </ dc:identifier >
  24. < dc:identifier > 10.1016/j.jconhyd.2024.104370 </ dc:identifier >
  25. < dc:language > eng </ dc:language >
  26. < dc:relation > https://doi.org/10.1016/j.jconhyd.2024.104370 </ dc:relation >
  27. < dc:relation > info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109544RB-I00/ES/MODELOS DE TRANSPORTE DE MASA E INTERACCIONES GEOQUIMICAS EN INTERFACES HETEROGENEAS, IRREGULARES Y MULTIPLES EN MEDIOS POROSOS Y FRACTURADOS CON GRADIENTES HIDRAULICOS, TERMI </ dc:relation >
  28. < dc:relation > info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/FPU20/04135 </ dc:relation >
  29. < dc:rights > http://creativecommons.org/licenses/by-nc/4.0/ </ dc:rights >
  30. < dc:rights > info:eu-repo/semantics/openAccess </ dc:rights >
  31. < dc:rights > Atribución-NoComercial 4.0 </ dc:rights >
  32. < dc:publisher > Elsevier </ dc:publisher >
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