Kinetic modeling of the bioleaching process of iron removal from kaolin

E. Aghaie, M. Pazouki, M. R. Hosseini, M. Ranjbar

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


A kinetic model was developed to assess the influence of batch cultivation of Aspergillus niger on the bioleaching of iron from kaolin. A simple model was proposed using the logistic equation for growth, and the Luedeking-Piret equations for iron removal, acid formation and sucrose consumption. The performance of the model was compared against that obtained by the empirically experimental data. The model provides a reasonable description for each parameter during the growth phase. The experimental results also suggest that the product formation depends upon both the instantaneous biomass concentration, and growth rate.

Original languageEnglish
Pages (from-to)43-47
Number of pages5
JournalApplied Clay Science
Early online date20 Jul 2012
Publication statusPublished - Sept 2012
Externally publishedYes


This research work is financially supported by grants from the Iranian National Science Foundation (INSF) , under contract number 84.5374 .


  • Bioleaching
  • Iron removal
  • Kaolin
  • Kinetic models
  • Logistic equation
  • Luedeking-Piret equation

ASJC Scopus subject areas

  • Geology
  • Geochemistry and Petrology


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