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

Bibliographic Details
Main Author: Júnior, O.Garcia
Publication Date: 1993
Format: Article
Language: eng
Source: Repositório Institucional da UNESP
Download full: http://dx.doi.org/10.1016/0168-6445(93)90047-d
http://hdl.handle.net/11449/231446
Summary: A 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.
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spelling Bacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scaleBacterial leachingThiobacillus ferrooxidansA 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.Departamento Bioquímica Instituto de Química, UNESP' Araraquara- SPUniversidade Estadual Paulista (UNESP)Júnior, O.Garcia2022-04-29T08:45:28Z2022-04-29T08:45:28Z1993-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article237-242http://dx.doi.org/10.1016/0168-6445(93)90047-dFEMS Microbiology Reviews, v. 11, n. 1-3, p. 237-242, 1993.1574-69760168-6445http://hdl.handle.net/11449/23144610.1016/0168-6445(93)90047-d2-s2.0-85088712614Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengFEMS Microbiology Reviewsinfo:eu-repo/semantics/openAccess2025-05-28T05:06:09Zoai:repositorio.unesp.br:11449/231446Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-05-28T05:06:09Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Bacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scale
title Bacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scale
spellingShingle Bacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scale
Júnior, O.Garcia
Bacterial leaching
Thiobacillus ferrooxidans
title_short Bacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scale
title_full Bacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scale
title_fullStr Bacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scale
title_full_unstemmed Bacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scale
title_sort Bacterial leaching of uranium ore from Figueira-PR, Brazil, at laboratory and pilot scale
author Júnior, O.Garcia
author_facet Júnior, O.Garcia
author_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Júnior, O.Garcia
dc.subject.por.fl_str_mv Bacterial leaching
Thiobacillus ferrooxidans
topic Bacterial leaching
Thiobacillus ferrooxidans
description A 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.
publishDate 1993
dc.date.none.fl_str_mv 1993-01-01
2022-04-29T08:45:28Z
2022-04-29T08:45:28Z
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/10.1016/0168-6445(93)90047-d
FEMS Microbiology Reviews, v. 11, n. 1-3, p. 237-242, 1993.
1574-6976
0168-6445
http://hdl.handle.net/11449/231446
10.1016/0168-6445(93)90047-d
2-s2.0-85088712614
url http://dx.doi.org/10.1016/0168-6445(93)90047-d
http://hdl.handle.net/11449/231446
identifier_str_mv FEMS Microbiology Reviews, v. 11, n. 1-3, p. 237-242, 1993.
1574-6976
0168-6445
10.1016/0168-6445(93)90047-d
2-s2.0-85088712614
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv FEMS Microbiology Reviews
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 237-242
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 repositoriounesp@unesp.br
_version_ 1834482409879371776

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