American Journal of Chemical Engineering
Volume 4, Issue 6, November 2016, Pages: 139-146
Received: Jul. 21, 2016;
Accepted: Aug. 2, 2016;
Published: Nov. 15, 2016
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Pooja Sharma, Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Roorkee, India
Uttam Kumar Ghosh, Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Roorkee, India
Amiya Kumar Ray, Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Roorkee, India
Kinetic studies were carried out for anaerobic digestion of distillery spent wash considering growth kinetic models due to Monod and Contois. The kinetic parameters were predicted with the help of previously published experimental data for anaerobically treated distillery spent wash. The digester was operated at seven different values of loading rates ranging between 0.954 to 2.459 gCOD/L/day. Maximum specific growth rate and maximum specific substrate utilization rate for Monod model have been predicted as of the order of 0.153 g/g/day
and 3.06 g/g/day
, respectively, and those for Contois kinetic model were found to be 0.140 g/g/day
and 0.421 g/g/day
, respectively. However, for both the models the decay rate coefficient,
was calculated as 0.0131 g/g/day. The estimated value of empirical constant
in Contois model was found to be order of 0.699 (dimensionless). The deviation of model predicted values from experimental results has been compared. Sensitivity analysis of the developed models was carried out by considering 10% increase in the values of both
Uttam Kumar Ghosh,
Amiya Kumar Ray,
Kinetic Model for Anaerobic Digestion of Distillery Spent Wash, American Journal of Chemical Engineering.
Vol. 4, No. 6,
2016, pp. 139-146.
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