Institute of Mathematics and Informatics Bulgarian Academy of Sciences
Serdica Journal of Computing, Vol. 4, No 1, (2010), 19p-28p
Mathematical modeling may have different purposes in chemical
and biochemical engineering sciences. One of them is to confirm or to
reject kinetic models for certain processes, or to evaluate the importance of
some transport phenomena on the net chemical or biochemical reaction rate.
In the present paper different microbial processes are considered and modeled
for evaluation of kinetic constants for batch and continuous processes
accomplished by free and immobilized microbial cells. The practical examples
are from the field of wastewater treatment and biosynthesis of products,
like enzymes, lactic acid, gluconic acid, etc.
By the aid of mathematical modeling the kinetics and the type of inhibition
are specified for microbial wastewater denitrification and biodegradation
of halogenated hydrocarbons. The importance of free and immobilized
cells and their separate contribution to the overall microbial process
is also evaluated for some fermentation processes: gluconic acid production,
dichloroethane biodegradation, lactic acid fermentation and monochloroacetic acid biodegradation.