Significant volumes of solid waste generated in a power system. Thus, when burning coal to produce calcium oxide is quenched lime that can be used for liming acid (podzolic) soils.
One day the TPP saws off up to 10 thousand tons of coal, and then satanical 1 thousand tonnes of slag and ash. At the Baltic power station in Estonia, working on oil shale, annually produces more than three million tons of ash, 55% of which is recycled in agriculture for the liming of soils. This ash is rich in oxides of calcium, magnesium, potassium and phosphorus. When making such fertilizers in the soil average yield of cereals in Estonia increased in 2 times.
Coal ash can be used for the production of building materials. Angarsk mining plant in Russia instead uses natural clay ash wastes Irkutsk thermal power station. Means of disposal of ashes is widely known, but only 10% of it is currently used for the production of building materials. From the ash can be obtained panels with special sound insulation, waterproof concrete, sukosol cementing materials, ceramic tile, wall cinder blocks.
The proportion of recycling of ash in Ukraine in the range of 10-14%, whereas in the U.S. it reached 20% in the UK – 60%, France 72%, in Finland – 84%.
At thermal power plants of Ukraine is formed 15-16 million tonnes of ash and slag waste, and the total amount of ash in the waste is not less than 220 million tons Of them can be obtained: porous slag aggregate lightweight concrete, saleslocation, claydite, prothalamion, saloon brick, ash wall panels, facade ceramic tiles, cements of different grades.
Recently in Ukraine using ash burshtynska TPP in the production of cement and slate on Zdolbunov cement-slate combine.