Mathematical Justification of Natural Mineral Sorbents Mixture Efficiency for Low Mineralized Drainage Water Treatment Depending on Temperature

Abstract

Purpose: to identify the relationship of sorption of a complex sorbent with a temperature factor and its mathematical substantiation. Material and methods. As a material for the study, a complex sorbent obtained from a mixture of perlite and agroionite in a ratio of 27:73 was used. The experiment was carried out in laboratory conditions at different temperatures. At certain intervals, when measuring the total salinity of the solutions, the temperature parameter was also measured. During the study, the air temperature was measured. For the experiment, a model water of three salinity levels: 3.1; 5; 7 g/l was used. The weighed portions of a mixture of sorbents weighing 27.5 g with model solutions, 300 ml each, were placed in a reservoir. Measurements were carried out after 5; 10; 20; 30 min; 1; 2; 24; 48 h using a HI 8733 conductometer from Hanna. Results. As a result of the study, the dynamics of the salinity of the model water under the action of a complex sorbent was obtained, a scatter diagram was constructed. It is a statistical analysis tool, with the help of which the dependence and the nature of the relationship between the two process parameters are revealed. According to the results obtained, it can be concluded that there is a positive relationship in the experiments performed. The efficiency of the process depends on temperature readings with a slight deviation. Thus, at an average temperature of 26.3 °C, the total mineralization index is lower than at an average temperature of 19.8 °C. Conclusions. By constructing a scatter diagram and a matrix scatter diagram, a nonlinear relationship between sorption by a complex sorbent and the temperature factor was revealed.