Oxidation Dynamics and Composition of the Flotation Plant Derived Tailing Impoundment Aquisgrana (Spain)

A tailing impoundment situated in the mining district of La Carolina (Spain), which stores waste resulting from the washing of Pb and Ag sulphides, was studied 30 years after it was abandoned. Fibre optic sensors were installed to record humidity, temperature, electrical conductivity and oxygen cont...

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Autores: Rojas-Hita, Diego, Hidalgo-Estévez, María Carmen, Kohfahl, Claus, Rey, Javier, Martínez-López, Julián, Benavente, José
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Universidad de Jaén
Repositorio:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
OAI Identifier:oai:ruja.ujaen.es:10953/3993
Acceso en línea:https://hdl.handle.net/10953/3993
Access Level:acceso abierto
Palabra clave:Tailings impoundments
Sulphide ore
Mine drainage
Surface water quality
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spelling Oxidation Dynamics and Composition of the Flotation Plant Derived Tailing Impoundment Aquisgrana (Spain)Rojas-Hita, DiegoHidalgo-Estévez, María CarmenKohfahl, ClausRey, JavierMartínez-López, JuliánBenavente, JoséTailings impoundmentsSulphide oreMine drainageSurface water qualityA tailing impoundment situated in the mining district of La Carolina (Spain), which stores waste resulting from the washing of Pb and Ag sulphides, was studied 30 years after it was abandoned. Fibre optic sensors were installed to record humidity, temperature, electrical conductivity and oxygen content in the pores down to a depth of 35.5 m. The oxygen profiles show an oxidised thickness of 5 m, meaning that the speed of the advancing oxidation front is estimated as 15 cm year−1. Sediment samples were obtained from different depths, and parameters such as pH, carbonates and metal(loid)s, among others, were analysed. High concentrations of As (> 500 mg kg−1), Fe (> 34,000 mg kg−1), Mn (> 900 mg kg−1), Pb (> 8000 mg kg−1) and Zn (> 5000 mg kg−1) were found. A piezometer was installed to enable the water inside the tailing pond to be sampled, and this presented high contents of SO42− (> 2400 mg L−1), Fe (> 28,000 μg L−1), Mn (> 7800 μg L−1) and Zn (> 7000 μg L−1), suggesting that the mineral leaching was related to the oscillations in the water table. The water from two drainage adits situated at the foot of the impoundment was also analysed, as well as surface water both upstream and downstream from it. The speciation-saturation models applied for these water samples indicated that in spite of the contamination potential of the impoundment, the deterioration in the quality of the river water is mainly due to the discharge from mining drains and the dissolution processes of precipitates accumulated along the riverbanks.Springer202520252019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/10953/3993reponame:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaéninstname:Universidad de JaénInglésWater Air Soil Pollut 2019; 230:158Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ruja.ujaen.es:10953/39932026-06-24T12:41:07Z
dc.title.none.fl_str_mv Oxidation Dynamics and Composition of the Flotation Plant Derived Tailing Impoundment Aquisgrana (Spain)
title Oxidation Dynamics and Composition of the Flotation Plant Derived Tailing Impoundment Aquisgrana (Spain)
spellingShingle Oxidation Dynamics and Composition of the Flotation Plant Derived Tailing Impoundment Aquisgrana (Spain)
Rojas-Hita, Diego
Tailings impoundments
Sulphide ore
Mine drainage
Surface water quality
title_short Oxidation Dynamics and Composition of the Flotation Plant Derived Tailing Impoundment Aquisgrana (Spain)
title_full Oxidation Dynamics and Composition of the Flotation Plant Derived Tailing Impoundment Aquisgrana (Spain)
title_fullStr Oxidation Dynamics and Composition of the Flotation Plant Derived Tailing Impoundment Aquisgrana (Spain)
title_full_unstemmed Oxidation Dynamics and Composition of the Flotation Plant Derived Tailing Impoundment Aquisgrana (Spain)
title_sort Oxidation Dynamics and Composition of the Flotation Plant Derived Tailing Impoundment Aquisgrana (Spain)
dc.creator.none.fl_str_mv Rojas-Hita, Diego
Hidalgo-Estévez, María Carmen
Kohfahl, Claus
Rey, Javier
Martínez-López, Julián
Benavente, José
author Rojas-Hita, Diego
author_facet Rojas-Hita, Diego
Hidalgo-Estévez, María Carmen
Kohfahl, Claus
Rey, Javier
Martínez-López, Julián
Benavente, José
author_role author
author2 Hidalgo-Estévez, María Carmen
Kohfahl, Claus
Rey, Javier
Martínez-López, Julián
Benavente, José
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Tailings impoundments
Sulphide ore
Mine drainage
Surface water quality
topic Tailings impoundments
Sulphide ore
Mine drainage
Surface water quality
description A tailing impoundment situated in the mining district of La Carolina (Spain), which stores waste resulting from the washing of Pb and Ag sulphides, was studied 30 years after it was abandoned. Fibre optic sensors were installed to record humidity, temperature, electrical conductivity and oxygen content in the pores down to a depth of 35.5 m. The oxygen profiles show an oxidised thickness of 5 m, meaning that the speed of the advancing oxidation front is estimated as 15 cm year−1. Sediment samples were obtained from different depths, and parameters such as pH, carbonates and metal(loid)s, among others, were analysed. High concentrations of As (> 500 mg kg−1), Fe (> 34,000 mg kg−1), Mn (> 900 mg kg−1), Pb (> 8000 mg kg−1) and Zn (> 5000 mg kg−1) were found. A piezometer was installed to enable the water inside the tailing pond to be sampled, and this presented high contents of SO42− (> 2400 mg L−1), Fe (> 28,000 μg L−1), Mn (> 7800 μg L−1) and Zn (> 7000 μg L−1), suggesting that the mineral leaching was related to the oscillations in the water table. The water from two drainage adits situated at the foot of the impoundment was also analysed, as well as surface water both upstream and downstream from it. The speciation-saturation models applied for these water samples indicated that in spite of the contamination potential of the impoundment, the deterioration in the quality of the river water is mainly due to the discharge from mining drains and the dissolution processes of precipitates accumulated along the riverbanks.
publishDate 2019
dc.date.none.fl_str_mv 2019
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/10953/3993
url https://hdl.handle.net/10953/3993
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Water Air Soil Pollut 2019; 230:158
dc.rights.none.fl_str_mv Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
instname:Universidad de Jaén
instname_str Universidad de Jaén
reponame_str RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
collection RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
repository.name.fl_str_mv
repository.mail.fl_str_mv
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