THE ATMOSPHERIC IMPACT ASSESSMENT GENERATED BY THE SLAG AND ASH DUMP IN CEPLEA VALLEY

The study emphasized the pollutants produced by the Ceplea Valley slag and ash deposit, which belong to The Turceni Energy Complex, and was carried out during 2008-2009 period. The fuel used in the combustion process from the thermal power station is the lignite from Oltenia coal field, and black oil and pit gas are used for the maintenance and stabilization of the flame in the boilers. The amount of slag and ash produced by the burning process is of approx. 1 mil m 3 /year/ energy group (there are 7 energy groups of 300 MW). The produced slag and ash is formed of sterile granular material, being deposited in accumulations created with the retaining dams, creating a waste dump of slag and ash, which are deposited through the hydraulic method used exclusively in our country. The most important pollutants are the total particles in suspension, PM10, and the gaseous pollutants as NO2, SO2, CO determined in the diurnal but also in the seasonal evolution (during summer months). Depending on their concentration, the INPUFF model was used to determine the dispersion areas, and the impact on the environment. The TSP exceeded the maximum permissible concentrations, and the gaseous pollutants had a decreasing trend in comparison with the previous years, as a result of introducing the modern technologies to the filtering system of the post burning emissions.