Metal pollution and mining in the Iberian pyrite belt: new remediation technologies to improve the ecosystem services of the river basins

The highly metal-contaminated Odiel-Tinto River basin, located in the Iberian Pyrite Belt (IPB), has been the focus of many environmental studies as a natural lab for biodiversity and environmentally catastrophic scenarios and as a reference site for mining places with similar conditions. This study...

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Autores: Bonnail, Estefanía, Vera, Sebastián, Blasco, Julián, Conradi, Mercedes, Del Valls, T. A.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/308035
Acceso en línea:http://hdl.handle.net/10261/308035
Access Level:acceso abierto
Palabra clave:Acid mine drainage
Circular economy
Water challenge
Ecosystem services
Odiel-Tinto basin
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spelling Metal pollution and mining in the Iberian pyrite belt: new remediation technologies to improve the ecosystem services of the river basinsBonnail, EstefaníaVera, SebastiánBlasco, JuliánConradi, MercedesDel Valls, T. A.Acid mine drainageCircular economyWater challengeEcosystem servicesOdiel-Tinto basinThe highly metal-contaminated Odiel-Tinto River basin, located in the Iberian Pyrite Belt (IPB), has been the focus of many environmental studies as a natural lab for biodiversity and environmentally catastrophic scenarios and as a reference site for mining places with similar conditions. This study demonstrates the feasibility and effectiveness of two different technologies to recover ecosystems affected by acid mine drainage (AMD) in the area of IPB. The current study compiles results of two newest technologies for AMD remediation: passive remediation (dispersed alkaline substrate—DAS) and a new disruptive technology (Adiabatic Sonic Evaporation and Crystallization—ASE&C) that purifies the contaminated water, obtaining two by-products (high-quality water and metal conglomerates) that improve the general quality of the ecosystem including biodiversity by eliminating more than 90% of the contaminants from AMD and mining waters. The removal of contaminants, enhancement of AMD treatment efficiency, and offset operating costs were compared and analyzed for the different uses of the decontaminated effluents, including an old tailing pond failure, the Aznalcóllar mining spill. The efficiency of the removal of elements from the contaminated water is significant using both technologies, although the passive DAS does not still reach the international benchmark for some compounds (such as Fe, sulfates, and Mn); whereas ASE&C obtains distilled water fulfilling all the international benchmarks with conductivity values lower than 120 µS cm−1 or metal concentrations lower than µg/L. Both technologies are eco-friendly and cost-effective as a result of the generation of valuable by-products such as fresh water and metal conglomerates as potentially commercial products while remediating aquatic ecosystems impacted by mining activities.This study has been partially funded by ASEC Grant #190180588 through EU EIC/Accelerator Horizon Europe 2022 call. E. Bonnail thanks ANID/CONICYT/FONDECYT 11180015. T.A. DelValls also thanks CNPq (#305734/2018-0) for productivity fellowships.Peer reviewedMultidisciplinary Digital Publishing InstituteEuropean CommissionAgencia Nacional de Investigación y Desarrollo (Chile)Comisión Nacional de Investigación Científica y Tecnológica (Chile)Fondo Nacional de Desarrollo Científico y Tecnológico (Chile)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2023202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/308035reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3390/w15071302Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3080352026-05-22T06:33:51Z
dc.title.none.fl_str_mv Metal pollution and mining in the Iberian pyrite belt: new remediation technologies to improve the ecosystem services of the river basins
title Metal pollution and mining in the Iberian pyrite belt: new remediation technologies to improve the ecosystem services of the river basins
spellingShingle Metal pollution and mining in the Iberian pyrite belt: new remediation technologies to improve the ecosystem services of the river basins
Bonnail, Estefanía
Acid mine drainage
Circular economy
Water challenge
Ecosystem services
Odiel-Tinto basin
title_short Metal pollution and mining in the Iberian pyrite belt: new remediation technologies to improve the ecosystem services of the river basins
title_full Metal pollution and mining in the Iberian pyrite belt: new remediation technologies to improve the ecosystem services of the river basins
title_fullStr Metal pollution and mining in the Iberian pyrite belt: new remediation technologies to improve the ecosystem services of the river basins
title_full_unstemmed Metal pollution and mining in the Iberian pyrite belt: new remediation technologies to improve the ecosystem services of the river basins
title_sort Metal pollution and mining in the Iberian pyrite belt: new remediation technologies to improve the ecosystem services of the river basins
dc.creator.none.fl_str_mv Bonnail, Estefanía
Vera, Sebastián
Blasco, Julián
Conradi, Mercedes
Del Valls, T. A.
author Bonnail, Estefanía
author_facet Bonnail, Estefanía
Vera, Sebastián
Blasco, Julián
Conradi, Mercedes
Del Valls, T. A.
author_role author
author2 Vera, Sebastián
Blasco, Julián
Conradi, Mercedes
Del Valls, T. A.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Agencia Nacional de Investigación y Desarrollo (Chile)
Comisión Nacional de Investigación Científica y Tecnológica (Chile)
Fondo Nacional de Desarrollo Científico y Tecnológico (Chile)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Acid mine drainage
Circular economy
Water challenge
Ecosystem services
Odiel-Tinto basin
topic Acid mine drainage
Circular economy
Water challenge
Ecosystem services
Odiel-Tinto basin
description The highly metal-contaminated Odiel-Tinto River basin, located in the Iberian Pyrite Belt (IPB), has been the focus of many environmental studies as a natural lab for biodiversity and environmentally catastrophic scenarios and as a reference site for mining places with similar conditions. This study demonstrates the feasibility and effectiveness of two different technologies to recover ecosystems affected by acid mine drainage (AMD) in the area of IPB. The current study compiles results of two newest technologies for AMD remediation: passive remediation (dispersed alkaline substrate—DAS) and a new disruptive technology (Adiabatic Sonic Evaporation and Crystallization—ASE&C) that purifies the contaminated water, obtaining two by-products (high-quality water and metal conglomerates) that improve the general quality of the ecosystem including biodiversity by eliminating more than 90% of the contaminants from AMD and mining waters. The removal of contaminants, enhancement of AMD treatment efficiency, and offset operating costs were compared and analyzed for the different uses of the decontaminated effluents, including an old tailing pond failure, the Aznalcóllar mining spill. The efficiency of the removal of elements from the contaminated water is significant using both technologies, although the passive DAS does not still reach the international benchmark for some compounds (such as Fe, sulfates, and Mn); whereas ASE&C obtains distilled water fulfilling all the international benchmarks with conductivity values lower than 120 µS cm−1 or metal concentrations lower than µg/L. Both technologies are eco-friendly and cost-effective as a result of the generation of valuable by-products such as fresh water and metal conglomerates as potentially commercial products while remediating aquatic ecosystems impacted by mining activities.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/308035
url http://hdl.handle.net/10261/308035
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3390/w15071302
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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