Substrate Utilisation and Chalcopyrite Concentrate Bioleaching at 60°C in the Presence of Nitrate

Denis W. Shiers; David E. Ralph; Helen R. Watling

doi:10.4028/www.scientific.net/AMR.825.435

Paper Titles

Molybdenite Bioleaching by Thermophilic Bacteria in a RELVA-ARBP Bioreactor
p.418

Potassium Extraction from Biotite by Penicillium and Aspergillus
p.423

Pretreatment of Refractory Gold Ores Using Cell-Free Extracts of P. chrysosporium: A Preliminary Study
p.427

Recovery of Zinc during the Pre-Treatment of a Refractory Gold-Bearing Ore
p.431

Substrate Utilisation and Chalcopyrite Concentrate Bioleaching at 60°C in the Presence of Nitrate
p.435

Synthesis of Biogenic Mn Oxide and its Application as Lithium Ion Sieve
p.439

The Bioleaching Characteristics of Chalcopyrite with Different Genetic Types
p.443

The Effect of Ferrous Iron Addition during Tetrathionate Utilisation by Some Sulfobacillus Species
p.447

The Efficient Recovery of Cobalt from Low Grade Refractory Carrollite with Bioleaching Technology
p.451

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 825Substrate Utilisation and Chalcopyrite Concentrate...

Substrate Utilisation and Chalcopyrite Concentrate Bioleaching at 60°C in the Presence of Nitrate

Abstract:

In batch cultures, the presence of nitrate inhibited iron (II) oxidation by iron (II)- or tetrathionate-adapted Acidianus (A.) brierleyi and Sulfolobus (S.) metallicus cells and tetrathionate oxidation by iron (II)-adapted A. brierleyi cells. Tetrathionate-adapted cell lines of A. brierleyi and S. metallicus oxidised tetrathionate in the presence of up to 40 mM nitrate but cell numbers were lower than those in uncontaminated tests. The results of the bioleaching tests indicated a possible window of enhanced copper extraction in the presence of 2030 mM nitrate that might be exploited in tank bioleaching. The build up of nitrate above 40 mM in bioleaching solutions must be avoided

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Periodical:

Advanced Materials Research (Volume 825)

Pages:

435-438

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.825.435

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Online since:

October 2013

Authors:

Denis W. Shiers, David E. Ralph, Helen R. Watling

Keywords:

Archaea, Bioleaching, Ferrous Oxidation, Nitrate, Tetrathionate Oxidation, Water Quality

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References

[1] J.D. Batty, G.V. Rorke, Development and commercial demonstration of the BioCOPTM thermophile process, Hydrometallurgy 83 (2006) 83-89.

DOI: 10.1016/j.hydromet.2006.03.049

Google Scholar

[2] D. Mikkelson, U. Kappler, A.G. McEwan, L.I. Sly, Archaeal diversity in two thermophilic chalcopyrite bioleaching reactors, Environ. Microbiol. 8 (2006) 2050-(2055).

DOI: 10.1111/j.1462-2920.2006.01115.x

Google Scholar

[3] P.R. Norris, Acidophile diversity in mineral sulfide oxidation, in: D.E. Rawlings, D.B. Johnson (Eds. ), Biomining, Springer, Berlin, 2007, pp.199-216.

DOI: 10.1007/978-3-540-34911-2_10

Google Scholar

[4] A. Sandström, S. Petersson, Bioleaching of a complex sulphide ore with moderate thermophilic and extreme thermophilic microorganisms, Hydrometallurgy 46 (1997) 181-190.

DOI: 10.1016/s0304-386x(97)00012-1

Google Scholar

[5] H.R. Watling, F.A. Perrot, D.W. Shiers, Comparison of selected characteristics of Sulfobacillus species and review of their occurrence in acidic and bioleaching environments, Hydrometallurgy 93 (2008) 57-65.

DOI: 10.1016/j.hydromet.2008.03.001

Google Scholar

[6] S. Bathe, P.R. Norris, Ferrous iron- and sulfur-induced genes in Sulfolobus metallicus, Appl. Environ. Microbiol. 73 (2007) 2491-2497.

DOI: 10.1128/aem.02589-06

Google Scholar

[7] M. Gericke, Y. Govender, A. Pinches, Tank bioleaching of low-grade chalcopyrite concentrates using redox control, Hydrometallurgy 104 (2010) 414-419.

DOI: 10.1016/j.hydromet.2010.02.024

Google Scholar