Review article

The article discusses the mathematical modeling of mixing chambers` performance at wastewater treatment plants. Based on an analysis of various methods for mixing reagents and the geometrical parameters of chambers, there is proposed a mixing chamber design suitable for pulp and paper wastewater treatment systems. In order to determine the optimum distance between the baffles, using the ANSYS FLUENT program, there was developed a model of the fluid motion in the mixing chamber. The results obtained indicate that the best mixing occurs at a distance between the baffles of 100 mm, the process being characterized by a uniform distribution of the reagent within the chamber. This chamber design allows for better mixing of the reagent with water and improves the efficiency of the treatment plant as a whole. The findings of this study can serve as practical recommendations for developing integrated treatment facilities.