An investigation into the effects of preleach time period, nitrogen supplementation and iron concentration on bioleaching performance

Master Thesis

2009

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http://hdl.handle.net/11427/5388
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thesis_ebe_2009_van_zyl_a.pdf (1.11 MB)
Authors
van Zyl, Andries Wynand
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University of Cape Town

Department
Centre for Bioprocess Engineering Research
Faculty
Faculty of Engineering and the Built Environment
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Abstract
Bioleaching has developed into a very important process for the recovery of valuable metals, particularly from low grade copper ores due to the ever increase in demand. A lag phase is present during the start-up phase of heap bioleach operations characterised by a low degree of microbial colonisation, a low ferrous iron oxidation rate and low microbial proliferation rates, ultimately resulting in a poor copper recovery rate.
Description

Includes abstract.


Includes bibliographical references (leaves 69-75).

Keywords
Bioprocess Engineering

Reference:

van Zyl, A. 2009. An investigation into the effects of preleach time period, nitrogen supplementation and iron concentration on bioleaching performance. University of Cape Town.

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