Mathematical modelling of biodegradation of monochloroacetic acid by Xanthobacter autotrophicus GJ10 immobilized in polyacrilamide gel

E Vasileva, K Petrov, V Beschkov
The biological method of waste water remediation includes the participation of peculiar bacterial strains, capable of utilizing the halogenated aliphates as a carbon source. In the present paper a kinetic model of the process of monochloroacetic acid biodegradation via glycolic acid production was developed. This model allowed the evaluation of the effects of microbial growth and diffusion limitations inside the gel particles on the process rate and the separate contributions of the free and
more » ... obilized cells for the overall fermentation process upon multiple uses. The model results were tested on the process carried out by the strain Xanthobacter autotrophicus GJ10 used in the process of degradation of the highly toxic 1,2-dichloroethane and suitable for remediation of monochloroacetate contaminated media.