Effect of carbon dioxide concentration on the bioleaching of a pyrite–arsenopyrite ore concentrate
- 19 February 1993
- journal article
- research article
- Published by Wiley in Biotechnology & Bioengineering
- Vol. 41 (4) , 459-464
- https://doi.org/10.1002/bit.260410409
Abstract
The effect of carbon dioxide concentration on the bacterial leaching of a pyrite-arsenopyrite ore concentrate was studied in continuous-flow reactors. Steady-state operation with two feed slurry densities, 6 wt% and 16 wt% solids, were tested for the effect of carbon dioxide concentration. Bacterial growth rates were estimated via the measurement of carbon dioxide consumption rates. Aqueous-phase carbon dioxide concentrations in excess of 10 mg/L were found to be inhibitory to bacterial growth. © 1993 John Wiley & Sons, Inc.Keywords
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