| Issue |
E3S Web Conf.
Volume 8, 2016
Mineral Engineering Conference MEC2016
|
|
|---|---|---|
| Article Number | 01039 | |
| Number of page(s) | 1 | |
| DOI | https://doi.org/10.1051/e3sconf/20160801039 | |
| Published online | 16 September 2016 | |
Evaluation of bioleaching column test of sulphide copper ore and copper concentrate using preconditioned surface
1 Mining Engineering Department, Pontificia Universidad Catolica de Chile, Chile
2 Environmental Engineering Deparment, Pontificia Universidad Católica de Chile, Chile
a Corresponding author: avidela@ing.puc.cl
Bacterial activity can be related to the presence of Fe+3 in the solution, which drives copper oxidation during the secondary copper low grade sulfide ore leaching process. The present work evaluates improvements in kinetics of leaching when ferroxidans are preconditioned in an inert surface helping to build a biofilm which improves metabolism of the colony. The present work shows evaluation using laboratory columns to perform bioleaching during a 30 days period under three conditions: a base column with no inert surface, a column with loofa available for bacterial growth and conditioning, and finally a column with the loofa surface ground and distributed in the column among the particles.
© Owned by the authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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