Show simple item record

dc.contributor.authorCorbett, M.
dc.contributor.authorCollinson, D.
dc.contributor.authorShiers, D.
dc.contributor.authorKaksonen, A.
dc.contributor.authorWatling, H.
dc.contributor.authorWatkin, Elizabeth
dc.identifier.citationCorbett, M. and Collinson, D. and Shiers, D. and Kaksonen, A. and Watling, H. and Watkin, E. 2015. Saline Water Bioleaching with Thermophilic Fe(Ii) Oxidizing Microorganisms. Advanced Materials Research. 1130: pp. 205-208.

The chloride tolerance of three Fe (II)- and sulfur-oxidising thermophiles and the effect of chloride on metals extraction from mineral sulfides were studied. Initially, 10-day bioleaching tests (60 °C) were conducted using pyrite (FeS2), chalcopyrite (CuFeS2) or pentlandite ((Ni,Fe)9S8) concentrates as substrate in basal salts medium (BSM), and the activities of Sulfolobus (S.) metallicus, Acidianus (A.) brierleyi and Metallosphaera (M.) hakonensis were compared. Fe (II) oxidation, as indicated by an increase in oxidation reduction potential (ORP), was observed in all combinations except A. brierleyi growing on chalcopyrite. The presence of added NaCl resulted in lower ORP after 10 days of bioleaching in all cases. In ancillary tests using BSM-Fe (II) growth medium with added NaCl it was found that cell counts at the end of Fe (II) biooxidation provided the most reliable estimate of tolerance to NaCl. On this basis, the rank order of salt tolerance is S. metallicus >>>A. brierleyi > M. hakonensis.

dc.publisherTrans Tech Publications, Switzerland
dc.titleSaline Water Bioleaching with Thermophilic Fe(Ii) Oxidizing Microorganisms
dc.typeJournal Article
dcterms.source.titleAdvanced Materials Research
curtin.departmentSchool of Biomedical Sciences
curtin.accessStatusFulltext not available

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record