REDUCTION OF OF POLLUTANTS CONCENTRATION OF MINE WATERS OF KRIVBASS

Annotation. Purpose. Determination of the influence of ultra- and nanodoadditives on the process of cleaning mine water. Methodology. Reduction of the concentration of pollutants by the introduction of additives and ultrasonic treatment of mine water was carried out taking into account the previously developed method for determining the degree of uniform mixing with the volume of mine water determined by the coefficient of optical density and light transmission of the emulsion. Findings. The conducted complex of studies showed a change in the concentration of pollutants in the mine water, depending on the applied ultra- and nanodobavok, the duration of ultrasound treatment and endurance at rest. Dependences of optical density and light transmission on the time of mixing of mine waters with ultra- and nano-additives, and the duration of ultrasonic treatment are given. Originality. Studies of the process of cleaning the mine waters through the introduction of ultra- and nano-additives found that their use requires a preliminary dispersion in the surfactant and only then in the mine water. In addition, for homogenization of additives in mine water, it is necessary to pre-treat it with ultrasound in a solution of surfactant and mine water. The optimal mixing time in surfactant, surfactant with mine water, surfactant with mine water and nanoadditive, determined by the coefficients of light permeability and optical density, is 2 minutes. The introduction of nanoadditives made it possible to reduce the concentration of pollutants from 62 g / l to 26 g / l, i.е. approximately in 2,4 times. Practical value. Understanding the processes of sedimentation of impurities in mine waters and obtaining dependencies of optical density and light transmission from the time of mixing of mine waters with ultraand nano-additives, and the duration of ultrasonic treatment, will allow developing optimal solutions for preventing the ingress of untreated mine waters into reservoirs, disturbing biological and hydrochemical equilibrium and threats not only for fish stocks of rivers, but also for public health.