2. PROTECTION OF WATER RESOURCES

LLC Torgovy Dom Neftemasloproduktov has the industry's highest water turnover of 99.7–99.8% and is the only refinery operating without discharge of wastewater into open water bodies. Regular research conducted by the Ukrainian Center for the Protection of Water in wells around an evaporator pond confirms a decrease in groundwater pollution and, accordingly, the correctness

In connection with the formation of foci and halos of contamination of soils and groundwater with oil products in the area of the objects of the industrial site of LLC "Torgovy Dom Neftemasloproduktov" since 1988. To date, systematic research is being carried out on the environmental assessment of the impact of an enterprise on groundwater and its interconnected surface waters. The work is carried out in collaboration with the Ukrainian Research Institute for Environmental Problems (Kharkiv) on the basis of laboratory research observation well networks ( map ).

The aim of the work is to conduct specialized monitoring with an assessment of the change in the state of groundwater pollution, and thus to assess the effectiveness of environmental measures implemented at LLC Torgovy Dom Neftemasloproduktov..

The main objects of study were considered:

• the territory directly industrial site of LLC "Torgovy Dom Neftemasloproduktov", where the main sources of pollution are technological installations, finished product tanks, pipelines and communications, sewage treatment plants and sludge collectors;

• area of impact of the industrial site (transformation zone), including the territory subject to pollution of groundwater and surface water as a result of migration petroleum products from the industrial site (source of pollution) to the drainage zone (river Psel);

• the area of the pond - evaporator, the filtration losses from which caused the transformation of the natural quality of groundwater.

As a result of the implementation of the main water protection measures (1994–2005), the environmental situation in the region began to gradually change in the direction of not only reducing the intensity of pollution groundwater and the localization of halos of pollution, but also the restoration of groundwater quality over large areas, as evidenced by research results that are given in table.

Also on the industrial site of LLC "Torgovy Dom Neftemasloproduktov" there is a system of engineering protection against the penetration of petroleum products into groundwater outside the enterprise (more than 45 wells that extract petroleum products). It should be noted environmental friendliness of the implemented method.                                 Oil product is extracted almost clean, is sent for processing with a water content of less than 1%. Water is also not miscible with petroleum products, the content of the latter in water is at a level of less than 0.1–0.3 mg / l. Neither water nor oil products are poured on the surface of the day. The system works around the clock and year-round. This is a unique system implemented in Ukraine. System operation on an ongoing basis. controlled by a developed network of monitoring observation points; on the basis of scientific research, the order of its development is outlined, which is based on predictive studies and mathematical modeling. The work is performed by the Hydroton LTD training center (Kharkiv). The results are monitored by the Ukrainian Research Institute for Environmental Problems. The developed and implemented methodology for the rehabilitation of the territory is a significant contribution to the implementation of the Program of rehabilitation of the Dnieper basin and the Northern Black Sea region.

Based on the results of the research, it can be stated that the ecological situation in the zone of impact of the facilities of the Torgovy Dom Neftemasloproduktov PAT system differs from previous years in the absence of the previously existing area contamination of groundwater, as well as a decrease in intensity (until lack of) in individual individual areas.