Assessing the effectiveness of a biological recovery of nickel for tailing dumps management

B.B. Mamba; T.G. Barnard; A.F. Mulaba-Bafubiandi; E. Fosso-Kankeu

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Assessing the effectiveness of a biological recovery of nickel for tailing dumps management

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Assessing the effectiveness of a biological recovery of nickel for tailing dumps management

B.B. Mamba, T.G. Barnard, A.F. Mulaba-Bafubiandi and E. Fosso-Kankeu

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https://hdl.handle.net/10210/7819

Abstract

Nickel mobilization

Bacillus subtilis

Sulfuric acid

Ore

Biological mobilization

Tailing dumps management

The mobilization of nickel from sulphide minerals using sulfuric acid and heterotrophic microorganism (Bacillus subtilis) was independently examined. The influences of parameters such as the concentration of acid and bacteria as well as reaction time were considered. Results of the monod-type kinetic study showed faster recovery of nickel from tailings (20 ppm/h) than from ore (8.07 ppm/h) by biological mobilization and similar trend with sulfuric acid.

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Title: Assessing the effectiveness of a biological recovery of nickel for tailing dumps management
Creators - without role: B.B. Mamba
T.G. Barnard
A.F. Mulaba-Bafubiandi
E. Fosso-Kankeu
Identifiers: 9911301307691
Copyright: “NOTICE: this is the author’s version of a work that was accepted for publication in Minerals Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Minerals Engineering, 24(5), 2011. DOI: http://dx.doi.org/10.1016/j.mineng.2010.11.007
Academic Unit: University of Johannesburg; Department of Metallurgy
Resource Type: Other