Applied Microbiology and Biotechnology

, Volume 33, Issue 5, pp 524–528

Modelling of Fe2 + oxidation by Thiobacillus ferrooxidans

  • Shrihari R. Kumar
  • K. S. Gandhi

DOI: 10.1007/BF00172545

Cite this article as:
Kumar, S.R. & Gandhi, K.S. Appl Microbiol Biotechnol (1990) 33: 524. doi:10.1007/BF00172545


The kinetics of oxidation of aqueous acidic ferrous sulphate by Thiobacillus ferrooxidans has been studied in a batch reactor. The contribution of cell wall envelopes to the oxidation rate has been shown to be negligible. A model which accounts for the oxidation of Fe2 +, death of bacteria due to Fe3 + poisoning, existence of an optimal pH and precipitation of Fe3 + has been proposed. The model is able to predict the concentration of Fe2 + and pH quite satisfactorily. The predictions of Fe3 + are not so accurate because of simplifying assumptions made about its precipitation.

Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • Shrihari R. Kumar
    • 1
  • K. S. Gandhi
    • 1
  1. 1.Department of Chemical EngineeringIndian Institute of ScienceBangaloreIndia

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