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Bioprocess and Biosystems Engineering

, Volume 35, Issue 3, pp 433–440 | Cite as

Column bioleaching of low-grade mining ore containing high level of smithsonite, talc, sphaerocobaltite and azurite

  • Sadia Ilyas
  • Ruan Chi
  • H. N. Bhatti
  • I. A. Bhatti
  • M. A. Ghauri
Original Paper

Abstract

Present work describes the bioleaching potential of metals from low-grade mining ore containing smithsonite, sphaerocobaltite, azurite and talc as main gangue minerals with adapted consortium of Sulfobacillus thermosulfidooxidans strain-RDB and Thermoplasma acidophilum. Bioleaching potential improved markedly by added energy source, acid preleaching and adaptation of microbial consortium with mixed metal ions. During whole leaching period including acid preleaching stage of 960 h and bioleaching stage of 212 days about 76% Co, 70% Zn, 84% Cu, 72% Ni and 63% Fe leached out.

Keywords

Column bioleaching Low-grade sulfide ore Consortium of moderate thermophiles 

Notes

Acknowledgments

This work was supported by Changjiang scholars and innovation research team in universities (IRT0974), Higher Education Commission of Pakistan and National Institute for Biotechnology and Genetic Engineering (Industrial biotechnology division) of Pakistan.

Supplementary material

449_2011_582_MOESM1_ESM.doc (512 kb)
Supplementary material 1 (DOC 509 kb)
449_2011_582_MOESM2_ESM.tif (4.2 mb)
Supplementary material 2 (TIFF 4268 kb)
449_2011_582_MOESM3_ESM.jpg (72 kb)
Supplementary material 3 (JPG 72 kb)

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Sadia Ilyas
    • 1
  • Ruan Chi
    • 1
  • H. N. Bhatti
    • 2
  • I. A. Bhatti
    • 2
  • M. A. Ghauri
    • 3
  1. 1.Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and PharmacyWuhan Institute of TechnologyWuhanChina
  2. 2.Department of Chemistry and BiochemistryUniversity of AgricultureFaisalabadPakistan
  3. 3.National Institute for Biotechnology and Genetic Engineering (NIBGE)FaisalabadPakistan

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