Abstract
The effect of treatment of liquid organic waste from pig farms with various calcium-containing reagents, followed by neutralization to pH 7.0-8.5, on reducing the emissions of pollutants such as ammonia, hydrogen sulfide, methyl mercaptan, nitrogen and carbon oxides at various stages of treatment was studied. The article deals with mathematical modeling of changes in the concentration fields of pollutants over time. Dynamic processes of gaseous pollutants propagation in the surface air layer above liquid organic waste accumulators are simulated. The developed model will allow calculating the distribution of pollutants over the storage of liquid organic waste in a given period of time and calculate the concentrations of gaseous pollutants in steady-state and non-stationary modes during reagent treatment. The time of reducing the concentrations of pollutants to the required values is determined based on the results of a computational experiment in the VITECON software package. The corrected sizes of sanitary protection zones of the pig complex before and after reagent treatment are presented.
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