Kinetic models of cell growth, substrate utilization and bio-decolorization of distillery wastewater by Aspergillus fumigatus UB260

  • M Pazouki
  • G Najafpour
  • MR Hosseini
Keywords: Bio-decolorization, kinetic models, distillery effluent, Logistic Equation, leudeking-Piret kinetics.

Abstract

Bio-decolorization kinetic studies of distillery effluent in a batch culture were conducted using Aspergillus fumigatus. A simple model was proposed using the Logistic Equation for the growth, Leudeking-Piret kinetics for bio-decolorization, and also for substrate utilization. The proposed models
appeared to provide a suitable description for each parameter devoted to the growth phase. The biomass yield for 14 g/l substrate was 70.7%. The maximum specific growth rate (µm) of the obtained and fitted data is close to the calculated ìm of the present research work (0.03 h-1 ). It was found that the kinetic model for the bio-decolorization of distillery effluent was growth associated.
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eISSN: 1684-5315