Geoenvironmental Study of Gold Mining Tailings in a Circular Economy Context – Santa Barbara, Minas Gerais, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/33829 https://doi.org/LEMOS, M.G, VALENTE, T., MARINHO-REIS, A.P, FONSCECA, R., FILHO, J.G., DUMONT, J.M, FERREIRA, G.M., DELBE, I.D. 2021. Geoenvironmental study of gold mining tailings in a circular economy context – Santa Bárbara, Minas Gerais Brasil. Mine Water and the Environment, Special issue Tailings facilities and management. Mine Water Environment, Mine Water and the Environment, 40:257–269. https://doi.org/10.1007/s10230-021-00754-6 https://doi.org/10.1007/s10230-021-00754-6 https://doi.org/doi.org/10.1007/s10230-021-00754-6 |
Resumo: | We characterized the tailings from the Santa Barbara tailings dam, which is located in Minas Gerais, southeastern Brazil, to: (i) identify its chemical, mineralogical, and metallurgical properties, and (ii) perform an environmental evaluation of the water at the surface of the tailings facility. The potential recovery of elements such as Sb, As, and Au was also considered for potential tailings reuse. The water was alkaline, with maximum pH values of ≈ 10, and contained potentially toxic elements, such as Sb (up to 0.500 mg/L), As (up to 0.080 mg/L), and Cu (up to 20 mg/L). Gold enrichment areas were found in the tailings dam, with concentrations up to 0.5 g/t. Alignment exists among tailings management, demand for critical raw materials, and increased interest in the processing of low-grade ores and mining waste, which is important in the context of the circular economy. They suggest that valorisation of tailings, although challenging, can be achieved by economic recovery of the more valuable metals. |
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Geoenvironmental Study of Gold Mining Tailings in a Circular Economy Context – Santa Barbara, Minas Gerais, BrazilGeochemistry and Environmental MineralogyTailings DamEnvironmental risk assessment and characterizationWe characterized the tailings from the Santa Barbara tailings dam, which is located in Minas Gerais, southeastern Brazil, to: (i) identify its chemical, mineralogical, and metallurgical properties, and (ii) perform an environmental evaluation of the water at the surface of the tailings facility. The potential recovery of elements such as Sb, As, and Au was also considered for potential tailings reuse. The water was alkaline, with maximum pH values of ≈ 10, and contained potentially toxic elements, such as Sb (up to 0.500 mg/L), As (up to 0.080 mg/L), and Cu (up to 20 mg/L). Gold enrichment areas were found in the tailings dam, with concentrations up to 0.5 g/t. Alignment exists among tailings management, demand for critical raw materials, and increased interest in the processing of low-grade ores and mining waste, which is important in the context of the circular economy. They suggest that valorisation of tailings, although challenging, can be achieved by economic recovery of the more valuable metals.Springer2023-02-01T15:00:59Z2023-02-012021-01-31T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/33829https://doi.org/LEMOS, M.G, VALENTE, T., MARINHO-REIS, A.P, FONSCECA, R., FILHO, J.G., DUMONT, J.M, FERREIRA, G.M., DELBE, I.D. 2021. Geoenvironmental study of gold mining tailings in a circular economy context – Santa Bárbara, Minas Gerais Brasil. Mine Water and the Environment, Special issue Tailings facilities and management. Mine Water Environment, Mine Water and the Environment, 40:257–269. https://doi.org/10.1007/s10230-021-00754-6https://doi.org/10.1007/s10230-021-00754-6http://hdl.handle.net/10174/33829https://doi.org/doi.org/10.1007/s10230-021-00754-6pormglemos@anglogoldashanti.com <mglemos@anglogoldashanti.comteresav@dct.uminho.ptpmarinho@dct.uminho.ptrfonseca@uevora.ptndndnd396Lemos, MarianaValente, TeresaMarinho Reis, PaulaFonseca, RitaDumont, J.MFerreira, G.M.M.Delbem, I.D.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:35:53Zoai:dspace.uevora.pt:10174/33829Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:22:33.927617Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Geoenvironmental Study of Gold Mining Tailings in a Circular Economy Context – Santa Barbara, Minas Gerais, Brazil |
title |
Geoenvironmental Study of Gold Mining Tailings in a Circular Economy Context – Santa Barbara, Minas Gerais, Brazil |
spellingShingle |
Geoenvironmental Study of Gold Mining Tailings in a Circular Economy Context – Santa Barbara, Minas Gerais, Brazil Lemos, Mariana Geochemistry and Environmental Mineralogy Tailings Dam Environmental risk assessment and characterization |
title_short |
Geoenvironmental Study of Gold Mining Tailings in a Circular Economy Context – Santa Barbara, Minas Gerais, Brazil |
title_full |
Geoenvironmental Study of Gold Mining Tailings in a Circular Economy Context – Santa Barbara, Minas Gerais, Brazil |
title_fullStr |
Geoenvironmental Study of Gold Mining Tailings in a Circular Economy Context – Santa Barbara, Minas Gerais, Brazil |
title_full_unstemmed |
Geoenvironmental Study of Gold Mining Tailings in a Circular Economy Context – Santa Barbara, Minas Gerais, Brazil |
title_sort |
Geoenvironmental Study of Gold Mining Tailings in a Circular Economy Context – Santa Barbara, Minas Gerais, Brazil |
author |
Lemos, Mariana |
author_facet |
Lemos, Mariana Valente, Teresa Marinho Reis, Paula Fonseca, Rita Dumont, J.M Ferreira, G.M.M. Delbem, I.D. |
author_role |
author |
author2 |
Valente, Teresa Marinho Reis, Paula Fonseca, Rita Dumont, J.M Ferreira, G.M.M. Delbem, I.D. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Lemos, Mariana Valente, Teresa Marinho Reis, Paula Fonseca, Rita Dumont, J.M Ferreira, G.M.M. Delbem, I.D. |
dc.subject.por.fl_str_mv |
Geochemistry and Environmental Mineralogy Tailings Dam Environmental risk assessment and characterization |
topic |
Geochemistry and Environmental Mineralogy Tailings Dam Environmental risk assessment and characterization |
description |
We characterized the tailings from the Santa Barbara tailings dam, which is located in Minas Gerais, southeastern Brazil, to: (i) identify its chemical, mineralogical, and metallurgical properties, and (ii) perform an environmental evaluation of the water at the surface of the tailings facility. The potential recovery of elements such as Sb, As, and Au was also considered for potential tailings reuse. The water was alkaline, with maximum pH values of ≈ 10, and contained potentially toxic elements, such as Sb (up to 0.500 mg/L), As (up to 0.080 mg/L), and Cu (up to 20 mg/L). Gold enrichment areas were found in the tailings dam, with concentrations up to 0.5 g/t. Alignment exists among tailings management, demand for critical raw materials, and increased interest in the processing of low-grade ores and mining waste, which is important in the context of the circular economy. They suggest that valorisation of tailings, although challenging, can be achieved by economic recovery of the more valuable metals. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-31T00:00:00Z 2023-02-01T15:00:59Z 2023-02-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/33829 https://doi.org/LEMOS, M.G, VALENTE, T., MARINHO-REIS, A.P, FONSCECA, R., FILHO, J.G., DUMONT, J.M, FERREIRA, G.M., DELBE, I.D. 2021. Geoenvironmental study of gold mining tailings in a circular economy context – Santa Bárbara, Minas Gerais Brasil. Mine Water and the Environment, Special issue Tailings facilities and management. Mine Water Environment, Mine Water and the Environment, 40:257–269. https://doi.org/10.1007/s10230-021-00754-6 https://doi.org/10.1007/s10230-021-00754-6 http://hdl.handle.net/10174/33829 https://doi.org/doi.org/10.1007/s10230-021-00754-6 |
url |
http://hdl.handle.net/10174/33829 https://doi.org/LEMOS, M.G, VALENTE, T., MARINHO-REIS, A.P, FONSCECA, R., FILHO, J.G., DUMONT, J.M, FERREIRA, G.M., DELBE, I.D. 2021. Geoenvironmental study of gold mining tailings in a circular economy context – Santa Bárbara, Minas Gerais Brasil. Mine Water and the Environment, Special issue Tailings facilities and management. Mine Water Environment, Mine Water and the Environment, 40:257–269. https://doi.org/10.1007/s10230-021-00754-6 https://doi.org/10.1007/s10230-021-00754-6 https://doi.org/doi.org/10.1007/s10230-021-00754-6 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
mglemos@anglogoldashanti.com <mglemos@anglogoldashanti.com teresav@dct.uminho.pt pmarinho@dct.uminho.pt rfonseca@uevora.pt nd nd nd 396 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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