FIELD: chemistry.
SUBSTANCE: invention relates to making sorbents. The disclosed sorbent for treatment of gases is a sludge which is formed during combined coagulation and lime treatment of raw water at a water treatment plant of thermal power plants. The sludge has the chemical composition: CaCO3+MgO+Mg(OH)2+SiO2+Fe(OH)3+Al(OH)3. Dried sludge is used (moisture content of 20%). A fraction of the sludge with particle diameter of 0.9-1.4 mm is used for treatment from nitrogen oxides and a fraction with particle diameter of 0.1-0.2 mm is used for treatment from sulphur oxides.
EFFECT: invention provides treatment to maximum allowable concentration of nitrogen dioxide and sulphur dioxide in gas emissions of thermal power plants.
2 dwg
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