Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachates

This research reports the effects of pH increase on contaminant mobility in acid mine drainage from the Iberian Pyrite Belt by seawater mixing in the laboratory, simulating the processes occurring in the Estuary of Huelva (SW Iberian Peninsula). Concentrations of Al, Fe, As, Cu and REY in mixing sol...

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Detalhes bibliográficos
Autores: Pérez López, Rafael, Millán Becerro, Ricardo, Basallote Sánchez, María Dolores, Carrero Romero, Sergio, Parviainen, Annika, Freydier, Rémi, Macías Suárez, Francisco, Ruiz Cánovas, Carlos
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/21421
Acesso em linha:https://hdl.handle.net/10272/21421
Access Level:acceso abierto
Palavra-chave:Mining pollution
Tinto and Odiel rivers
Estuary of Huelva
Seawater mixing
Contaminants mobility
2506 Geología
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spelling Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachatesPérez López, RafaelMillán Becerro, RicardoBasallote Sánchez, María DoloresCarrero Romero, SergioParviainen, AnnikaFreydier, RémiMacías Suárez, FranciscoRuiz Cánovas, CarlosMining pollutionTinto and Odiel riversEstuary of HuelvaSeawater mixingContaminants mobility2506 GeologíaThis research reports the effects of pH increase on contaminant mobility in acid mine drainage from the Iberian Pyrite Belt by seawater mixing in the laboratory, simulating the processes occurring in the Estuary of Huelva (SW Iberian Peninsula). Concentrations of Al, Fe, As, Cu and REY in mixing solutions significantly decreased with increasing pH. Schwertmannite precipitation at pH 2.5–4.0 led to the total removal of Fe(III) and As. Subsequently, iron-depleted solutions began to be controlled by precipitation of basaluminite at pH 4.5–6.0, which acted as a sink for Al, Cu and REY. Nevertheless, as the pH rises, schwertmannite becomes unstable and releases back to solution the previously retained As. Moreover, other elements (S, Zn, Cd, Ni and Co) behaved conservatively in mixing solutions with no participation in precipitation processes. Some toxic elements finally end up to the Atlantic Ocean contributing to the total pollutant loads and environmentally threatening the coastal areas.Elsevier20232023-01-0120232023-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10272/21421reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/214212026-06-02T14:58:11Z
dc.title.none.fl_str_mv Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachates
title Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachates
spellingShingle Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachates
Pérez López, Rafael
Mining pollution
Tinto and Odiel rivers
Estuary of Huelva
Seawater mixing
Contaminants mobility
2506 Geología
title_short Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachates
title_full Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachates
title_fullStr Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachates
title_full_unstemmed Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachates
title_sort Effects of estuarine water mixing on the mobility of trace elements in acid mine drainage leachates
dc.creator.none.fl_str_mv Pérez López, Rafael
Millán Becerro, Ricardo
Basallote Sánchez, María Dolores
Carrero Romero, Sergio
Parviainen, Annika
Freydier, Rémi
Macías Suárez, Francisco
Ruiz Cánovas, Carlos
author Pérez López, Rafael
author_facet Pérez López, Rafael
Millán Becerro, Ricardo
Basallote Sánchez, María Dolores
Carrero Romero, Sergio
Parviainen, Annika
Freydier, Rémi
Macías Suárez, Francisco
Ruiz Cánovas, Carlos
author_role author
author2 Millán Becerro, Ricardo
Basallote Sánchez, María Dolores
Carrero Romero, Sergio
Parviainen, Annika
Freydier, Rémi
Macías Suárez, Francisco
Ruiz Cánovas, Carlos
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Mining pollution
Tinto and Odiel rivers
Estuary of Huelva
Seawater mixing
Contaminants mobility
2506 Geología
topic Mining pollution
Tinto and Odiel rivers
Estuary of Huelva
Seawater mixing
Contaminants mobility
2506 Geología
description This research reports the effects of pH increase on contaminant mobility in acid mine drainage from the Iberian Pyrite Belt by seawater mixing in the laboratory, simulating the processes occurring in the Estuary of Huelva (SW Iberian Peninsula). Concentrations of Al, Fe, As, Cu and REY in mixing solutions significantly decreased with increasing pH. Schwertmannite precipitation at pH 2.5–4.0 led to the total removal of Fe(III) and As. Subsequently, iron-depleted solutions began to be controlled by precipitation of basaluminite at pH 4.5–6.0, which acted as a sink for Al, Cu and REY. Nevertheless, as the pH rises, schwertmannite becomes unstable and releases back to solution the previously retained As. Moreover, other elements (S, Zn, Cd, Ni and Co) behaved conservatively in mixing solutions with no participation in precipitation processes. Some toxic elements finally end up to the Atlantic Ocean contributing to the total pollutant loads and environmentally threatening the coastal areas.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-01-01
2023
2023-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10272/21421
url https://hdl.handle.net/10272/21421
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
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 Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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