Navoi Mining & Metallurgy Combine, Navoi, Uzbekistan:

Muzafarov A. M., Deputy Director of Scientific Research, Chief Engineer of Central Scientific-Research Laboratory, e-mail: AM.Muzafarov@ngmk.uz
Oslopovskiy S. A., Director of Radio Control of Hydrometallurgical Plant No. 1

Navoi State Mining Institute, Navoi, Uzbekistan:
Sattarov G. S., Professor of a Chair “Metallurgy”

This article shows the results of radiometric investigations of technogenic objects: patterns of spatial distribution of equivalent dose rate of gamma radiation; geochemical behavior of radionuclides in the joint storage of different composition wastes; evaluation of radiation contribution of technogenic objects in environment. Radiometric method is one of operational nuclear-physical methods of examination of technogenic objects. During the radiometric studies on technogenic objects to identify the entering factors and study the geochemical behavior of radionuclides in groundwater, this method shows the possibility of developing methods to reduce the radiation exposure of technogenic objects of mining and metallurgical enterprises on environment. The object of this research was the development of guidelines for radiometric survey, definition of equivalent dose rate of gamma radiation (EDR) of technogenic objects and radiometric determination of radionuclide concentrations and their geochemical behavior in underground water samples; generalization of research results on the disclosure of main factors of radioisotope dissolution mechanism; development of measures to reduce the radiation factor of technogenic objects of mining and metallurgical enterprises on environment. Currently, this research continues to systematize the previously obtained data (over 20 years), for more reliable mechanism for understanding the geochemical behavior of radionuclides in technogenic waste disposal facilities of different composition and radionuclide solubility under the influence of the different composition of the liquid phases. Identification of the main factors of solubility of radionuclides in water samples makes it possible to quickly solve the questions of estimation of the impact of technogenic object on environment. On the basis of radiometric investigations of technogenic objects, there were identified the patterns of spatial distribution of gamma radiation EDR and radionuclide concentration in water samples. These results show that in both cases there is no excess performance over the regulated values.

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