Assessing the effects of metal mining effluents on freshwater ecosystems using biofilm as an ecological indicator: Comparison between nanofiltration and nanofiltration with electrocoagulation treatment technologies

Abandoned mines cause serious environmental damage to their surroundings with considerable impacts on freshwater ecosystems. These impacts occur mainly due to the uncontrolled discharge of polluted effluents, which may contain high concentrations of heavy metals. Currently, no real solution exists f...

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Autores: Vendrell Puigmtijà, Lidia, Abril, Meritxell, Proia, Lorenzo, Espinosa Angona, Carmen, Ricart, Marta, Oatley-Radcliffe, D.L., Williams, Paul M., Zanain, Mabrouk, Llenas, Laia
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:UVic-UCC
Repositorio:RiUVic. Repositori institucional de la UVic-UCC
OAI Identifier:oai:dspace.uvic.cat:10854/6228
Acceso en línea:http://hdl.handle.net/10854/6228
https://doi.org/10.1016/j.ecolind.2020.106213
Access Level:acceso abierto
Palabra clave:Biofilms
Ecologia aquàtica
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spelling Assessing the effects of metal mining effluents on freshwater ecosystems using biofilm as an ecological indicator: Comparison between nanofiltration and nanofiltration with electrocoagulation treatment technologiesVendrell Puigmtijà, LidiaAbril, MeritxellProia, LorenzoEspinosa Angona, CarmenRicart, MartaOatley-Radcliffe, D.L.Williams, Paul M.Zanain, MabroukLlenas, LaiaBiofilmsEcologia aquàticaAbandoned mines cause serious environmental damage to their surroundings with considerable impacts on freshwater ecosystems. These impacts occur mainly due to the uncontrolled discharge of polluted effluents, which may contain high concentrations of heavy metals. Currently, no real solution exists for this important environmental problem, leaving a legacy of global pollution. This study aimed to assess the impact of a metal mining effluent from an abandoned mine on freshwater ecosystems, using aquatic biofilms as an ecological indicator. At the same time, the efficiency of different innovative treatment technologies in reducing the ecological impacts caused by mining effluents was evaluated, consisting of nanofiltration and nanofiltration combined with electrocoagulation. To do that, aquatic biofilms obtained from a pristine stream, were exposed, under microcosms conditions, to a metal mining effluent, untreated or treated by the innovative treatment technologies and responses were compared with unexposed biofilm which served as control. The structural and functional responses of the biofilm were measured with throughout time. Biofilms that were exposed to the untreated mining effluent showed significant differences respect to the rest of treatments and the control, particularly exhibiting inhibitory effects on photosynthetic efficiency just after 24 h of exposure and a progressive shift of the photosynthetic community composition throughout the exposure period. The treatment technologies significantly reduced the ecological impact caused by the metal mining effluent. However, metal bioaccumulation in biofilm revealed a potential long-term impact. These observations evidenced the biofilm as a useful ecological indicator to assess the ecological impact caused by metal mining effluents on freshwaters and the efficiency of different treatment technologies to reduce it.This work was supported by the European Commission LIFE program throughout the LIFE DEMINE project (LIFE16 ENV/ES/000218).ElsevierUniversitat de Vic - Universitat Central de Catalunya. CT BETAUniversitat de Vic - Universitat Central de Catalunya. Centre d'Estudis dels Rius Mediterranis (CERM)2020202020202020info:eu-repo/semantics/articleinfo:eu-repo/publishedVersionapplication/pdf8 p.application/pdfhttp://hdl.handle.net/10854/6228https://doi.org/10.1016/j.ecolind.2020.106213reponame:RiUVic. Repositori institucional de la UVic-UCCinstname:UVic-UCCInglésThis work was supported by the European Commission LIFE program throughout the LIFE DEMINE project (LIFE16 ENV/ES/000218).LIFE16 ENV/ES/000218Aquest document està subjecte a aquesta llicència Creative Commonshttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.cainfo:eu-repo/semantics/openAccessoai:dspace.uvic.cat:10854/62282026-06-07T19:15:21Z
dc.title.none.fl_str_mv Assessing the effects of metal mining effluents on freshwater ecosystems using biofilm as an ecological indicator: Comparison between nanofiltration and nanofiltration with electrocoagulation treatment technologies
title Assessing the effects of metal mining effluents on freshwater ecosystems using biofilm as an ecological indicator: Comparison between nanofiltration and nanofiltration with electrocoagulation treatment technologies
spellingShingle Assessing the effects of metal mining effluents on freshwater ecosystems using biofilm as an ecological indicator: Comparison between nanofiltration and nanofiltration with electrocoagulation treatment technologies
Vendrell Puigmtijà, Lidia
Biofilms
Ecologia aquàtica
title_short Assessing the effects of metal mining effluents on freshwater ecosystems using biofilm as an ecological indicator: Comparison between nanofiltration and nanofiltration with electrocoagulation treatment technologies
title_full Assessing the effects of metal mining effluents on freshwater ecosystems using biofilm as an ecological indicator: Comparison between nanofiltration and nanofiltration with electrocoagulation treatment technologies
title_fullStr Assessing the effects of metal mining effluents on freshwater ecosystems using biofilm as an ecological indicator: Comparison between nanofiltration and nanofiltration with electrocoagulation treatment technologies
title_full_unstemmed Assessing the effects of metal mining effluents on freshwater ecosystems using biofilm as an ecological indicator: Comparison between nanofiltration and nanofiltration with electrocoagulation treatment technologies
title_sort Assessing the effects of metal mining effluents on freshwater ecosystems using biofilm as an ecological indicator: Comparison between nanofiltration and nanofiltration with electrocoagulation treatment technologies
dc.creator.none.fl_str_mv Vendrell Puigmtijà, Lidia
Abril, Meritxell
Proia, Lorenzo
Espinosa Angona, Carmen
Ricart, Marta
Oatley-Radcliffe, D.L.
Williams, Paul M.
Zanain, Mabrouk
Llenas, Laia
author Vendrell Puigmtijà, Lidia
author_facet Vendrell Puigmtijà, Lidia
Abril, Meritxell
Proia, Lorenzo
Espinosa Angona, Carmen
Ricart, Marta
Oatley-Radcliffe, D.L.
Williams, Paul M.
Zanain, Mabrouk
Llenas, Laia
author_role author
author2 Abril, Meritxell
Proia, Lorenzo
Espinosa Angona, Carmen
Ricart, Marta
Oatley-Radcliffe, D.L.
Williams, Paul M.
Zanain, Mabrouk
Llenas, Laia
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universitat de Vic - Universitat Central de Catalunya. CT BETA
Universitat de Vic - Universitat Central de Catalunya. Centre d'Estudis dels Rius Mediterranis (CERM)
dc.subject.none.fl_str_mv Biofilms
Ecologia aquàtica
topic Biofilms
Ecologia aquàtica
description Abandoned mines cause serious environmental damage to their surroundings with considerable impacts on freshwater ecosystems. These impacts occur mainly due to the uncontrolled discharge of polluted effluents, which may contain high concentrations of heavy metals. Currently, no real solution exists for this important environmental problem, leaving a legacy of global pollution. This study aimed to assess the impact of a metal mining effluent from an abandoned mine on freshwater ecosystems, using aquatic biofilms as an ecological indicator. At the same time, the efficiency of different innovative treatment technologies in reducing the ecological impacts caused by mining effluents was evaluated, consisting of nanofiltration and nanofiltration combined with electrocoagulation. To do that, aquatic biofilms obtained from a pristine stream, were exposed, under microcosms conditions, to a metal mining effluent, untreated or treated by the innovative treatment technologies and responses were compared with unexposed biofilm which served as control. The structural and functional responses of the biofilm were measured with throughout time. Biofilms that were exposed to the untreated mining effluent showed significant differences respect to the rest of treatments and the control, particularly exhibiting inhibitory effects on photosynthetic efficiency just after 24 h of exposure and a progressive shift of the photosynthetic community composition throughout the exposure period. The treatment technologies significantly reduced the ecological impact caused by the metal mining effluent. However, metal bioaccumulation in biofilm revealed a potential long-term impact. These observations evidenced the biofilm as a useful ecological indicator to assess the ecological impact caused by metal mining effluents on freshwaters and the efficiency of different treatment technologies to reduce it.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/publishedVersion
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10854/6228
https://doi.org/10.1016/j.ecolind.2020.106213
url http://hdl.handle.net/10854/6228
https://doi.org/10.1016/j.ecolind.2020.106213
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv This work was supported by the European Commission LIFE program throughout the LIFE DEMINE project (LIFE16 ENV/ES/000218).
LIFE16 ENV/ES/000218
dc.rights.none.fl_str_mv Aquest document està subjecte a aquesta llicència Creative Commons
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ca
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Aquest document està subjecte a aquesta llicència Creative Commons
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ca
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
8 p.
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RiUVic. Repositori institucional de la UVic-UCC
instname:UVic-UCC
instname_str UVic-UCC
reponame_str RiUVic. Repositori institucional de la UVic-UCC
collection RiUVic. Repositori institucional de la UVic-UCC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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