SIMULATION OF CONSTITUENT PROCESSES OF ANAEROBIC DEGRADATION OF ORGANIC-MATTER BY THE [METHANE] MODEL

The model of anaerobic digestion described earlier by the authors was used for analysis of the different phases of the process. It was shown that at the glucose conversion a coexistence of hydrogen producing ac idogenic bacteria and hydrogen-utilizing non-methanogenic bacteria cau ses a hydrogen partial pressure decrease at an increase of solids rete ntion time (i), the intensity of the negative feed-back effect in sulf ate-reduction through hydrogen sulfide formation is regulated by the p H level during an oscillation dynamics in acetate/sulfate system (ii), under the toxicity influence the processes of methanogenesis and acet ogenesis together with hydrolysis may be rate-limiting steps in the an aerobic system with particulate substrate degradation (iii).