Effects of temperature on the rates of iron and sulfur oxidation by selected bioleaching Bacteria and Archaea: Application of the Ratkowsky equation

P.D. Franzmann; C.M. Haddad; R.B. Hawkes; W.J. Robertson; J.J. Plumb

doi:10.1016/j.mineng.2005.04.006

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Effects of temperature on the rates of iron and sulfur oxidation by selected bioleaching Bacteria and Archaea: Application of the Ratkowsky equation

Journal article

Peer reviewed

Effects of temperature on the rates of iron and sulfur oxidation by selected bioleaching Bacteria and Archaea: Application of the Ratkowsky equation

P.D. Franzmann, C.M. Haddad, R.B. Hawkes, W.J. Robertson and J.J. Plumb

Minerals Engineering, Vol.18(13-14), pp.1304-1314

2005

DOI: https://doi.org/10.1016/j.mineng.2005.04.006

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Abstract

Bioleaching rates are affected by temperature and temperature is a major selective pressure for the organisms that will inhabit a bioleaching operation. The relationship of microbial activity to temperature is best described by the Ratkowsky equation. Ratkowsky and Arrhenius equations were applied to temperature versus sulfur or ferrous iron oxidation data for selected bioleaching microorganisms. Extrapolated cardinal temperatures for iron and sulfur oxidation, and activation energies were derived from the fitted Ratkowsky and Arrhenius equations. The data provided definition of the temperature operating windows, to a precision not previously available, for the majority of species that are frequently encountered as the biological catalysts in tank and heap bioleaching environments.

Details

Title: Effects of temperature on the rates of iron and sulfur oxidation by selected bioleaching Bacteria and Archaea: Application of the Ratkowsky equation
Authors/Creators: P.D. Franzmann (Author/Creator)
C.M. Haddad (Author/Creator)
R.B. Hawkes (Author/Creator)
W.J. Robertson (Author/Creator)
J.J. Plumb (Author/Creator)
Publication Details: Minerals Engineering, Vol.18(13-14), pp.1304-1314
Publisher: Elsevier BV
Identifiers: 991005544709407891
Murdoch Affiliation: School of Biological Sciences and Biotechnology
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 7 Engineering & Materials Science; 7.229 Mineral & Metal Processing; 7.229.774 Bioleaching
Web Of Science research areas: Engineering, Chemical; Mineralogy; Mining & Mineral Processing
ESI research areas: Geosciences