The radionuclide content in coal from different deposits and ash-slag wastes from coal-burning thermal power plants (TPP) as well as in atmospheric emissions together with fly ash from TPP is analyzed. The problems of using coal with high content of naturally occurring radionuclides and methods for solving them at the Urtuiskii lignite deposit in Transbaikalia are illuminated. Data on the content of naturally occurring radionuclides in Transbaikalian coal and the weighted mean content of uranium and thorium in Siberian region coal are presented. Information on the radiation conditions near coal-burning TPP, the effect on the environment and public health is presented.
1 Elemental, mineral and radionuclide composition of the Slovianska thermal power plant ash-slag has been determined. The ash-slag fractions refer to the first class of radiation safety. The quantitative oxide composition is the following: SiO 2 , Al 2 O 3 , Fe 2 O 3 , CaO and MgO. The granulometric fractions of wastes can be recommended as the components of light concretes.
The information about the generally accepted methods of modeling mineral deposits into a step-by-step methodology is systematized in the article. The method of modeling the geological structure of ore deposits of minerals in the mining and geological information system Micromine based on geological exploration data is considered step by step. As a result of the modeling process, the specialist receives a block model of the mineral. The most common way of interpreting an ore body based on geological profiles is covered gradually. The article describes the algorithm for constructing a geological model, which includes importing data into the Micromine GIS environment, and their visualization in gradual mode: creating a database of exploration wells, displaying their mouths and trajectories, and selecting ore intervals in accordance with the requirements of the State Commission on reserves. The obtained ore intervals are used for interpreting data on vertical sections, combining contours of ore bodies and building their frame models, as well as creating an empty block model and interpolating laboratory testing data into it. The authors do not consider the method of modeling coal deposits and the method of conditional modeling. Suggestions are made on the subject of future research in terms of describing methods for modeling reservoir deposits and conditional modeling
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