Estimation of the Impact of Production Activity of Too "Appak" on the Environment.

The company "APPAK" LLP is engaged in the production of uranium products in the territory of the Republic of Kazakhstan. APPAK LLP (limited liability partnership) is the first joint Kazakh-Japanese enterprise to enter the industrial production of uranium. APPAK LLP was established to develop the uranium deposit in the Western section of the Mynkuduk field by the method of underground borehole leaching.
The geological features of this deposit make it possible to conduct uranium mining in a unique way without lifting the rocks to the surface. The essence of the method lies in the fact that the productive horizon is opened by a well. A sulfuric acid solution (a productive solution) is fed along the well. The ions of natural uranium are transferred into the solution in the interior (ie, the ore does not rise to the surface). Then the productive solution rises to the surface and passes the sorption process in the ion-exchange columns. Next, precipitation and drying of uranium takes place until a yellow powder ("yellow cake") is received, which enters the containers. The technological process of processing of productive solutions by the method of underground leaching is a closed cycle and has no waste solutions, which minimizes production waste.
In the process of extraction and processing of productive solutions, there is an effect on the air environment. The following pollutants are released into the atmosphere:
- dioxides (oxides) of nitrogen, carbon monoxide, sulfur oxide, soot during the operation of boiler houses on diesel fuel.
- aerosols of sulfuric acid, dust of ammonium nitrate, nickel oxide, radionuclides from the operation of technological equipment and processing of technological solutions.
- manganese and its compounds, iron oxide, chromium, fluoric gaseous compounds, carbon monoxide, inorganic dust, abrasive.
- products of combustion of fuel of special motor vehicles and vehicles, carbon monoxide, sulfur oxide, soot.
Table 1 shows the hazard classes of the listed substances and the emissions.

List of pollutants in the atmosphere

Table 1.

Hazard class Name of substance Emission of substance t / year
1 Chrome 0.0001188
2 Manganese, nickel, nitrogen, sulfuric acid 0.0004634
3 Nitrogen (II) oxide, carbon (soot),
Sulfur dioxide 0.0002642
4 Ammonia, ammonium nitrate, carbon oxide 0.0005651

Thus, annually to the atmosphere as a result of the enterprise, 22.1126931 tons of pollutants enter.

Bibliography:

1. A collection of methods for calculating emissions of harmful substances into the atmosphere by various industries. Almaty, 1996.
2. Mamilov VA, Petrov RF, Shushanina GR The extraction of uranium by the method of underground leaching. Moscow: Atomizdat, 1980.
3. SanPiN "Sanitary and hygienic requirements for ensuring radiation safety", Ministry of Health. Republic of Kazakhstan, January 31, 2003.
4. Shumilin MV, Muromtsev NN, Brovin KG Exploration of uranium deposits for mining by underground leaching method. - M: Nedra, 1985
5. SanPiN "Sanitary and epidemiological requirements for atmospheric air", approved by the order of the Minister of Health of the Republic of Kazakhstan dated August 18, 2004 No. 629, are registered in the Registry of state registration of regulatory legal acts under No. 3076.
6. Uranium deposits of Kazakhstan / Handbook, RK, Almaty. 1996

Author Nizamova Tatiana.