Geology, geography and global energy

Scientific and Technical Journal

Geoecology of underground waters of the Lebedinsky deposit

2022. №1, pp. 125-129

Moskovtseva Daria A. - postgraduate student, Belgorod State National Research University,

Kornilov Andrey G. - Doctor of Sciences (Geography), Head of the Department of Geography and Geoecology, Belgorod State National Research University,

Kichigin Evgeny V. - Candidate of Sciences (Geology and Mineralogy), Associate Professor, Belgorod State National Research University,

Since 1967, Lebedinsky GOK has been operating at the Lebedinsky deposit of the Kursk Magnetic Anomaly, whose activities have a significant impact on the environment, including groundwater. There are 4 groups of water intakes on the territory of Lebedinsky GOK. These include the following groundwater recharge zones: 1. Mining feed zone for wells No. 2 and No. 3 of the “RSU water intake”; 2. Residential-industrial - mining groundwater supply zone of shaft No. 4 of the water intake of the underground drainage complex; 3. Residentialindustrial zone with the contribution of agricultural runoff for shaft No. 5 of the water intake of the underground drainage complex; 4. Mixed feed zone for the "pump RSU" due to its intermediate spatial location between the above water intakes. The results of monitoring the ecological state of groundwater at these sites showed that the concentrations of controlled pollutants are within the established standards, at the same time, a certain differentiation in the level of groundwater pollution was revealed, depending on the predominant type of impact of economic activity in the watershed areas. In the mixed feeding zone of the “alluvial RSU”, an increased, relative to other wells, dry residue content by 25-50 %, chlorides by 40 %, sulfates by 30 %, nitrates and nitrites by 1,5-2 times prevail. In shafts No. 4-5 of the water intake of the underground drainage complex, there is a predominance (compared to wells No. 2-3 of the “RSU water intake”) of dry residue and hardness by 25 %, sulfates by 30 %, and the mining zone itself (RSU water intake) determines increased concentrations iron and ammonium by 2 times, fluorine by 10 %.

Key words: Lebedinskoye field, groundwater, water wells, groundwater recharge zones, chemical composition of groundwater, hydroecological monitoring