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dc.contributor.advisorHatje, Vanessa-
dc.contributor.authorNereu, Fernanda Soares-
dc.creatorNereu, Fernanda Soares-
dc.date.accessioned2018-10-25T18:00:20Z-
dc.date.available2018-10-25T18:00:20Z-
dc.date.issued2018-10-25-
dc.date.submitted2017-09-
dc.identifier.urihttp://repositorio.ufba.br/ri/handle/ri/27822-
dc.description.abstractABSTRACT - The aim of this study is to critically analyse the data of accidents with mining tailing dams, acquired from 148 scientific articles, 11 technical reports, and 4 databases available online (Supplementary Material). The aspects addressed here involve the main causes, ores, type and magnitude of the socioeconomic and environmental impacts. Reports on dam accidents date from 1626, with 1994 being the year with the largest number of accidents. At the end of 2015, the Mariana accident, in Brazil, stood out as the incident with the largest volume of tailings released ever registered. More than half of the reported accidents were related to human error (59%), while natural processes (32%) were reported as the second most important cause of accidents. From the 60’s, a substantial increase in the number of events happened, especially with Cu and Au or several combinations of ores. The largest amount of accidents occurred in the Americas (51.1%), where The United States and Chile were the countries with more occurrences. About 31% of the incidents reported deaths and a wide number of homeless people as a result of the accident. Among the countries with accidents, all of them have legislation regulating the mining activities. Mineral exploration is indispensable for the global economy, thus new technologies are constantly under development to improve the extraction efficiency and minimize associated environmental impacts. However, there is an imminent need for greater control of the operations of dams and better use of tailings generated. Recycling of tailing is an essential step to be incorporated in the life cycle of the mined ores. Preventive actions, despite corrective actions, are more effective and less costly for the environment and for society. Therefore, better practices, higher low enforcements together with preventive actions are necessary to reduce the number of accidents.pt_BR
dc.language.isopt_BRpt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectAccidentspt_BR
dc.subjectTailing damspt_BR
dc.subjectMiningpt_BR
dc.subjectTailingpt_BR
dc.subjectImpactspt_BR
dc.titleImpactos dos acidentes em barragens de rejeito de mineração: uma revisão históricapt_BR
dc.typeTrabalho de Conclusão de Cursopt_BR
dc.publisher.departamentInstituto de Geociênciaspt_BR
dc.publisher.initialsUFBApt_BR
dc.publisher.countryBrasilpt_BR
dc.subject.cnpqOceanografia Geológicapt_BR
Appears in Collections:Trabalho de Conclusão de Curso (Graduação) - Oceanografia (IGEO)

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Monografia_Fernanda_Soares_Nereu.pdfMonografia1,87 MBAdobe PDFView/Open
Monografia_Fernanda Soares Nereu -Material Suplementar Tabela S1.pdfTabela335,25 kBAdobe PDFView/Open


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