Advertisement

Minerals and the Environment

, Volume 6, Issue 1, pp 5–9 | Cite as

Removal of copper and cyanide from solution using activated carbon

  • Stuart A. Manktelow
  • John G. Paterson
  • John A. Meech
Article

Abstract

The removal of copper and cyanide from aqueous solution by activated carbon has been investigated. Using a coal-based activated carbon, initial concentrations of 244 to 2441 mg/litre total cyanide combined with 61 to 610 mg/litre copper were reduced to a minimum of 3.6 mg/litre total cyanide and 0.6 mg/litre copper in the presence of a fixed initial quantity of air.

Cyanide removal was, found to be augmented by the presence of copper in solution, and by the supply of additional air.

It is suggested that cyanide removal is accomplished by catalytic oxidation on the carbon surfaces, and that additional cyanide is removed in the presence of copper by adsorption of cyano-cuprate complexes onto the activated carbon.

Keywords

Oxidation Copper Aqueous Solution Geochemistry Activate Carbon 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Brickell, R. H., ‘The removal of cyanide from mill tailings’,Preprint, 84th Annual General Meeting, CIM (1982).Google Scholar
  2. 2.
    Devuyst, E. A., Ettel, V. A., Borbely, G. J., and Conard, B. R., ‘A new process for the treatment of wastewaters containing cyanide and related species’,Preprint 21st Annual Conference of Metallurgists, Toronto (1982).Google Scholar
  3. 3.
    Bernandin, F. E., ‘Cyanide detoxification using adsorption and catalytic oxidation on granular activated carbon’,J. Water Poll. Contr. Fed., 45, 221 (1973).Google Scholar
  4. 4.
    Prober, R., and Kidon, W. E., ‘Differential-bed study of cyanide treatment with activated carbon’,Ind. Eng. Chem., Process Des. Dec., 15, 223 (1976).Google Scholar
  5. 5.
    Shantz, R., and Reich, J., ‘A review of copper-cyanide metallurgy’,Hydromet., 3, 99 (1978).Google Scholar
  6. 6.
    Noblitt, H. L., ‘Complex ions of copper and cyanide’,Mines Branch Research Report R268 Canmet, Ottawa (1973).Google Scholar

Copyright information

© Science and Technology Letters 1984

Authors and Affiliations

  • Stuart A. Manktelow
    • 1
  • John G. Paterson
    • 1
  • John A. Meech
    • 1
  1. 1.Department of Mining EngineeringQueen's UniversityKingstonCanada

Personalised recommendations