4. The research results
According to the obtained data a number of graphic dependences at which processing the main processes of a
deep mineralization (Fig. 2, 3) are constructed.
During all experiment the balance of decay of organic sludge, as well as transformation of nitrogen compounds
was fixed. As a result a specific rate of decay of the organic sediment in the mineralizer, depending on a
concentration of activated sludge on ash-free substance was received. Concentration of activated sludge on ashless
substance MLVSS changed from 3.8-10.6 g/dm3.
It has been established that the specific rate of decay increasing with the concentration of activated sludge in the
aerobic mineralizer decreases from 3.5 to 1.4 mg/g hour.
In an initial stage of operation daily decay of organic part of activated sludge made 6700 mg/day, and by the end
of experiment made 7500 mg/day.
Specific rate of decay was defined according to the equation of balance of an aerobic mineralizer