Development of a Mathematical Model and Numerical Study of the Process of Biological Wastewater Treatment Under Conditions of Uneven Loading of the Treatment System

The main goal of this article is to design a multifactorial model for rapid evaluation of the effec-tive operation of reactors for biological wastewater treatment, which is based on: changes in the concentration of organic pollutants in the bioreactor over time; changes in the concentration of activated sludge in the bioreactor over time; changes in the concentration of activated sludge in the reactor over time, taking into account the unevenness of the flow of wastewater to treatment facilities; the process of transporting the substrate to the bioreactor (it is possible to obtain dif-ferent amounts at different times). The software implementation of the proposed algorithm for finding the appropriate model problem in the Python environment has been developed. The re-sults of computer experiments on the study of the effectiveness of wastewater treatment in bio-logical treatment reactors for different operating modes of the installations are given. The ob-tained results will be useful during calculations in the case of designing biological treatment fa-cilities or during the reconstruction of existing bioreactors for their promising operation in new operating conditions.