Bacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scale

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dc.contributor.authorJúnior, O.Garcia
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T08:45:28Z
dc.date.available2022-04-29T08:45:28Z
dc.date.issued1993-01-01
dc.description.abstractA bacterial leaching program was carried out in order to evaluate the potential of applying this process to leach uranium from the ore of Figueira-PR, Brazil. The experiments were carried out in shake flasks, column percolation (laboratory and scmipilot scale)and in heap leaching. In shake flasks and in column percolation experiments at laboratory scale, bacterial activity on Ihe ore was confirmed: approximately 60% of uranium was leached, against around 30% in sterilized controls. Colunm percolation experiments at semipilot scale and heap leaching (850 tons of ore) showed uranium extractions of approximately 50%. In both experiments, a complementary sulfuric acid attack, after the bacterial leaching phase, was neccssaw to reach this level of uranium extraction. © 1993.en
dc.description.affiliationDepartamento Bioquímica Instituto de Química, UNESP' Araraquara- SP
dc.format.extent237-242
dc.identifierhttp://dx.doi.org/10.1016/0168-6445(93)90047-d
dc.identifier.citationFEMS Microbiology Reviews, v. 11, n. 1-3, p. 237-242, 1993.
dc.identifier.doi10.1016/0168-6445(93)90047-d
dc.identifier.issn1574-6976
dc.identifier.issn0168-6445
dc.identifier.scopus2-s2.0-85088712614
dc.identifier.urihttp://hdl.handle.net/11449/231446
dc.language.isoeng
dc.relation.ispartofFEMS Microbiology Reviews
dc.sourceScopus
dc.subjectBacterial leaching
dc.subjectThiobacillus ferrooxidans
dc.titleBacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scaleen
dc.typeArtigo

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