Thermophilic bioleaching of arsenopyrite usingSulfolobus and a semi-continuous laboratory procedure

@article{Lindstrm2005ThermophilicBO,
  title={Thermophilic bioleaching of arsenopyrite usingSulfolobus and a semi-continuous laboratory procedure},
  author={E. B{\"o}rje Lindstr{\"o}m and Lars Gunneriusson},
  journal={Journal of Industrial Microbiology},
  year={2005},
  volume={5},
  pages={375-382}
}
A laboratory equipment for pumping slurries is described. The pumping is performed semi-continuously by using a plastic syringe, a set of different valves, and a programmable electronic unit. The reproducibility of the pumping is demonstrated. Bioleaching of a gold-containing arsenopyrite slurry was done withSulfolobus at 70°C using the semi-continuous procedure and with a retention time of 100 h for the mineral. Arsenic was completely released at a rate of 109 mg l−1 h−1. The gold recovery is… CONTINUE READING