Assessment of the Effect of Illumination on the Survival Rate of Eichhornia for Mine Water Treatment in Winter Time

After the liquidation of coal enterprises in eastern Donbass, a large volume of mineralised mine water had to be pumped to the surface. The importance of qualitative treatment of pumped water out of old mine workings is given. The results of analyzing the efficiency of mine water treatment in the town of Shakhty, Rostov region, are given. Based on the analysis of the chemical composition of discharged water, the increased concentration of salts was determined. Some negative effects of discharging of treated groundwater into small rivers of the region were stated. A chance of water post-treatment purification by using Eichhornia is considered. The results of measuring natural illumination during different periods of the year are presented. The minimum permissible duration and illumination of plants in winter were determined experimentally in laboratory conditions. The results of evaluation of Eichhornia survival rate of during unfavorable winter periods are presented. The conditions for effective vegetation of a tropical plant to reduce the period of adaptation in the natural environment are noted.