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

Abstract

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.