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Kinetics of pyrite, pyrrhotite, and chalcopyrite dissolution by Acidithiobacillus ferrooxidans

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dc.contributor.authorKocaman, Ayse Tuba
dc.contributor.authorCemek, Mustafa
dc.contributor.authorEdwards, Katrina Jane
dc.date.accessioned2026-06-27T13:55:33Z
dc.date.issued2016
dc.description.abstractThe main objective of this study was to investigate the dissolution kinetics of pyrite, pyrrhotite, and chalcopyrite. Crushed minerals were reacted with Acidithiobacillus ferrooxidans (25 degrees C). The kinetics of dissolution was investigated by monitoring pH and Fe2+ and Fe3+ ion concentrations in the leaching solutions. Pyrite, pyrrhotite, and chalcopyrite dissolution by A. ferrooxidans was found to be a chemically controlled process. With bacteria, the dissolution rates of the minerals increased in the order of pyrrhotite, pyrite, and chalcopyrite. The number of cells attached to mineral surfaces increased in the same order. Acidithiobacillus ferrooxidans was found to enhance the dissolution rates of the minerals. The acid-insoluble trait of pyrite and acid-soluble trait of the other 2 minerals affected the pH changes in the leaching solutions.en
dc.description.sponsorshipCenter for Dark Energy Biosphere Investigation Science and Technology Center (C-DEBI)
dc.description.sponsorshipYildiz Technical University [2014-07-04-DOP03]
dc.description.urihttps://doi.org/10.1139/cjm-2016-0085
dc.identifier.doi10.1139/cjm-2016-0085
dc.identifier.eissn1480-3275
dc.identifier.endpage642
dc.identifier.issn0008-4166
dc.identifier.issue8
dc.identifier.pubmed27332502
dc.identifier.startpage629
dc.identifier.urihttps://hdl.handle.net/20.500.14981/55782
dc.identifier.volume62
dc.identifier.wos000380903500001
dc.language.isoeng
dc.publisherCANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
dc.relation.ispartofCANADIAN JOURNAL OF MICROBIOLOGY
dc.rightsopenAccess
dc.subjectAcidithiobacillus ferrooxidans
dc.subjectpyrite
dc.subjectpyrrhotite
dc.subjectchalcopyrite
dc.subjectdissolution kinetics
dc.subjectX-RAY PHOTOELECTRON
dc.subjectHYDROGEN-PEROXIDE
dc.subjectSULFIDE MINERALS
dc.subjectSULFURIC-ACID
dc.subjectFERROUS-IONS
dc.subjectELECTROCHEMICAL DISSOLUTION
dc.subjectNONOXIDATIVE DISSOLUTION
dc.subjectOXIDATIVE DISSOLUTION
dc.subjectHINDERED DISSOLUTION
dc.subjectBACTERIAL ATTACHMENT
dc.subjectBiochemistry & Molecular Biology
dc.subjectBiotechnology & Applied Microbiology
dc.subjectImmunology
dc.subjectMicrobiology
dc.titleKinetics of pyrite, pyrrhotite, and chalcopyrite dissolution by Acidithiobacillus ferrooxidans
dc.typeArticle
dspace.entity.typePublication
local.import.sourceWOS

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