Kinetic Model for Anaerobic Digestion of Distillery Spent Wash
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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Authors
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
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Abstract
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 and .
Keywords
Kinetic Modelling, Anaerobic Digester, Distillery Spent Wash, Monod Kinetics, Contois Kinetics and Sensitivity Analysis
To cite this article
Pooja Sharma, 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. doi: 10.11648/j.ajche.20160406.11
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Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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