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NATURAL AND MAN-MADE FACTORS OF CONTAMINATION OF GROUND WATERS IN THE VICINITY OF DISPOSAL FACILITIES FOR NITROGEN FERTILIZERS MANUFACTURING WASTE

Клёцкина О.В., Минькевич И.И.
Analysis of natural and man-made factors of location of disposal facilities for waste and by-products of production of nitrogen-based chemical fertilizers has been made. A total of 19 facilities of such kind have been considered. For each of the 19 territories factors that contribute to penetration of nitrogen-containing contaminants from waste disposal facilities into ground waters and facilitate their migration in the underground hydrosphere have been taken into account. Among the man-made factors hydrofuge insulation of the facilities, phase and material composition of the waste, concentration of nitrogen-containing substances in a waste disposal facility hold a special place. Among natural factors geomorphic conditions, ground waters and properties of water-bearing materials (lithology, thickness, coefficient of permeability, ground waters level, mineralization, chemical type of water), lithology and thickness of water-resisting rocks, tectonic and neotectonic conditions, presence of karsting rocks in the section have been analyzed. As a result of the analysis made similar natural and man-made factors facilitating contamination of ground waters and conditioning generic character of their migration have been determined.