Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock Pile
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10230-022-00878-3 http://hdl.handle.net/11449/240186 |
Resumo: | The Osamu Utsumi mine was the first to economically mine uranium ore in Brazil. During its operation, a river valley was buried for the construction of the waste rock pile. The original stream was diverted to the northwest side of the pile and has since flowed into a diversion channel devoid of basal waterproofing, while an acid mine drainage (AMD) source flows at the base of this waste rock pile. This research aims to evaluate the possible relationship between water infiltration of the diversion channel and the AMD resurgence at the base of the pile using electrical resistivity tomography and induced polarization. 2D inversion models and pseudo-3D maps allowed the recognition of low resistivity zones (< 100 Ω·m) with high chargeability areas (10 mV/V). Some of these low-resistivity areas have been interpreted as infiltration zones in segments of the diversion channel into the pile, and in one of them, the flow intercepts a high chargeability area interpreted as a sulfide-rich zone that is expected to contribute to AMD at the base of the pile. Understanding the hydrogeochemical process will help select effective actions to mitigate the generation of AMD at the mine, which is currently in the decommissioning phase. |
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Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock PileDiagnóstico geofísico de la infiltración del canal de desvío en una pila de residuos de uranioAcid mine drainageBrazilElectrical resistivity tomographyInduced polarizationUranium mineThe Osamu Utsumi mine was the first to economically mine uranium ore in Brazil. During its operation, a river valley was buried for the construction of the waste rock pile. The original stream was diverted to the northwest side of the pile and has since flowed into a diversion channel devoid of basal waterproofing, while an acid mine drainage (AMD) source flows at the base of this waste rock pile. This research aims to evaluate the possible relationship between water infiltration of the diversion channel and the AMD resurgence at the base of the pile using electrical resistivity tomography and induced polarization. 2D inversion models and pseudo-3D maps allowed the recognition of low resistivity zones (< 100 Ω·m) with high chargeability areas (10 mV/V). Some of these low-resistivity areas have been interpreted as infiltration zones in segments of the diversion channel into the pile, and in one of them, the flow intercepts a high chargeability area interpreted as a sulfide-rich zone that is expected to contribute to AMD at the base of the pile. Understanding the hydrogeochemical process will help select effective actions to mitigate the generation of AMD at the mine, which is currently in the decommissioning phase.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Geosciences and Exact Sciences Institute (IGCE) São Paulo State University, 24-A Ave, 1515, Bela Vista, SPGeosciences and Exact Sciences Institute (IGCE) São Paulo State University, 24-A Ave, 1515, Bela Vista, SPFAPESP: 2020/14647-0Universidade Estadual Paulista (UNESP)Nascimento, Matheus Mistrinel Pacine Feitoza do [UNESP]Moreira, César Augusto [UNESP]Duz, Beatriz Guzzo [UNESP]Silveira, Ana Júlia Traíba da [UNESP]2023-03-01T20:05:19Z2023-03-01T20:05:19Z2022-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article704-720http://dx.doi.org/10.1007/s10230-022-00878-3Mine Water and the Environment, v. 41, n. 3, p. 704-720, 2022.1616-10681025-9112http://hdl.handle.net/11449/24018610.1007/s10230-022-00878-32-s2.0-85131327618Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMine Water and the Environmentinfo:eu-repo/semantics/openAccess2023-03-01T20:05:19Zoai:repositorio.unesp.br:11449/240186Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-05-23T11:46:20.816486Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock Pile Diagnóstico geofísico de la infiltración del canal de desvío en una pila de residuos de uranio |
title |
Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock Pile |
spellingShingle |
Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock Pile Nascimento, Matheus Mistrinel Pacine Feitoza do [UNESP] Acid mine drainage Brazil Electrical resistivity tomography Induced polarization Uranium mine |
title_short |
Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock Pile |
title_full |
Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock Pile |
title_fullStr |
Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock Pile |
title_full_unstemmed |
Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock Pile |
title_sort |
Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock Pile |
author |
Nascimento, Matheus Mistrinel Pacine Feitoza do [UNESP] |
author_facet |
Nascimento, Matheus Mistrinel Pacine Feitoza do [UNESP] Moreira, César Augusto [UNESP] Duz, Beatriz Guzzo [UNESP] Silveira, Ana Júlia Traíba da [UNESP] |
author_role |
author |
author2 |
Moreira, César Augusto [UNESP] Duz, Beatriz Guzzo [UNESP] Silveira, Ana Júlia Traíba da [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Nascimento, Matheus Mistrinel Pacine Feitoza do [UNESP] Moreira, César Augusto [UNESP] Duz, Beatriz Guzzo [UNESP] Silveira, Ana Júlia Traíba da [UNESP] |
dc.subject.por.fl_str_mv |
Acid mine drainage Brazil Electrical resistivity tomography Induced polarization Uranium mine |
topic |
Acid mine drainage Brazil Electrical resistivity tomography Induced polarization Uranium mine |
description |
The Osamu Utsumi mine was the first to economically mine uranium ore in Brazil. During its operation, a river valley was buried for the construction of the waste rock pile. The original stream was diverted to the northwest side of the pile and has since flowed into a diversion channel devoid of basal waterproofing, while an acid mine drainage (AMD) source flows at the base of this waste rock pile. This research aims to evaluate the possible relationship between water infiltration of the diversion channel and the AMD resurgence at the base of the pile using electrical resistivity tomography and induced polarization. 2D inversion models and pseudo-3D maps allowed the recognition of low resistivity zones (< 100 Ω·m) with high chargeability areas (10 mV/V). Some of these low-resistivity areas have been interpreted as infiltration zones in segments of the diversion channel into the pile, and in one of them, the flow intercepts a high chargeability area interpreted as a sulfide-rich zone that is expected to contribute to AMD at the base of the pile. Understanding the hydrogeochemical process will help select effective actions to mitigate the generation of AMD at the mine, which is currently in the decommissioning phase. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-09-01 2023-03-01T20:05:19Z 2023-03-01T20:05:19Z |
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://dx.doi.org/10.1007/s10230-022-00878-3 Mine Water and the Environment, v. 41, n. 3, p. 704-720, 2022. 1616-1068 1025-9112 http://hdl.handle.net/11449/240186 10.1007/s10230-022-00878-3 2-s2.0-85131327618 |
url |
http://dx.doi.org/10.1007/s10230-022-00878-3 http://hdl.handle.net/11449/240186 |
identifier_str_mv |
Mine Water and the Environment, v. 41, n. 3, p. 704-720, 2022. 1616-1068 1025-9112 10.1007/s10230-022-00878-3 2-s2.0-85131327618 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Mine Water and the Environment |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
704-720 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045880582897664 |