Record Details

MODELING OF HYDROLYSIS CONTROLLED ANAEROBIC-DIGESTION

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title MODELING OF HYDROLYSIS CONTROLLED ANAEROBIC-DIGESTION
 
Creator JAIN, S
LALA, AK
BHATIA, SK
KUDCHADKER, AP
 
Subject methanogenesis
reactor
anaerobic digestion
hydrolysis
mass transfer
hydrolytic enzyme
stirred tank reactor
 
Description A mathematical model of anaerobic digestion has been developed which considers the process as occurring through hydrolysis followed by a sequence of steps which have been considered together as a pseudo-first order process. The Michaelis-Menten equation has been modified to incorporate variable enzyme concentration. An immobilized reactor has been designed, fabricated and operated on cowdung feed to obtain data for estimating the model parameters by non-linear regression. These model parameters were used to predict the performance of the reactor and good agreement between experimental and predicted values was observed. The model was further tested satisfactorily on data from the literature. From the parameters estimated it was concluded that hydrolysis was the slowest stage and that the mass transfer of hydrolytic enzyme from microbe to bulk was the rate controlling step in this stage. The hydrolysis reaction, represented by a modified Michaelis-Menten equation, was reduced to first order in bulk enzyme concentration and zero order in substrate concentration thereby emphasizing the significance of bulk enzyme concentration.
 
Publisher JOHN WILEY & SONS LTD
 
Date 2011-08-16T22:52:43Z
2011-12-26T12:55:11Z
2011-12-27T05:43:52Z
2011-08-16T22:52:43Z
2011-12-26T12:55:11Z
2011-12-27T05:43:52Z
1992
 
Type Article
 
Identifier JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 53(4), 337-344
0268-2575
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9652
http://hdl.handle.net/10054/9652
 
Language en