Targoniy I. Mathematical and computer modeling of the process of water treatment processes for their automation

The thesis is a completed scientific research, which solves the important scientific and technical problem of improving the modes of operation of treatment facilities by automating them on the basis of new mathematical models of processes of purification of technological waters. The first section provides an overview and analysis of the literature on the topic of the thesis, identifies the tasks of the research presented in the work in solving the scientific and technical task of developing new mathematical models for process of water treatment for their automated control. The second section describes the problem of the water treatment process with magnetic filters. In the developed mathematical model of magnetic purification, the reverse influence of process characteristics (concentration of contamination of liquid and trapped particles) on the characteristics of the media (coefficients of porosity, filtration, mass transfer, magnetic field intensity) was taken into account. To simulate the operation of the magnetic filter in the Simulink application of the MatLab software environment we found a solution to the problem. Based on the obtained results, the filter protective time and pressure drop were determined. The third section is devoted to the mathematical modeling of the process of biological water treatment. In this section, mathematical models of biological purification are developed that take into account a number of basic parameters, such as: variable input concentration of pollution, variable concentration of oxygen, temperature of the aquatic environment, etc. The fourth section is devoted to the mathematical modeling and automation of electrocoagulation processes. The description of the mathematical model takes into account the processes that take place in the electrocoagulation plant, as a set of interaction of various factors depending on: the concentration of suspended solids in water, the applied force of the current, the flow rate and temperature of the fluid, the external environment, water in the reactor, the design parameters of the electrocoagulation plant. The results of the thesis were used in the design of the electrocoagulation plant for the treatment of process waters of the textile industry by the Limited Liability Company "E.T.E."; during the modernization of the existing water treatment system by the Rivne Regional Production and Utility Enterprise of the water supply and sewerage system "Rivneoblvodokanal"; in improving the operation of the biological wastewater treatment system by Limited Liability Company “Swisspan Limited”. The results obtained are implemented in the educational process in the preparation of special courses “Numerical Methods”, “Numerical Methods in Electric Power Engineering” (Department of Automation, Electrical and Computer-Integrated Technologies of the National University of Water and Environmental Engineering) for students of the National University of Water and Environmental Engineering of the Ministry of Education and Science of Ukraine.