FIELD: burning organic wastes in closed cycle by use of concentrated oxygen. SUBSTANCE: proposed method is employed for incineration of wastes at high content of ash and calorific power of 500 to 9000 Btu/pound wastes are loaded into incinerator where slag of molten inorganic ash and exhaust gases are formed. Slag and exhaust gases are removed from incinerator, after which exhaust gases are cleaned through cooling for removal of considerable amount of particles and for dehumidification of gases. Part of heat of exhaust gases evacuated from incinerator is transferred to gas mixture before introducing it in incinerator; cleaned exhaust gases are divided into three or more parts. First part of cleaned exhaust gases and concentrated gaseous oxygen are introduced in incinerator at such ratio that total volumetric concentration of oxygen is no less than 30% by volume. Second part of cleaned exhaust gases is treated for extraction of carbon dioxide; third part of cleaned exhaust gases is mixed with exhaust gases evacuated from incinerator before transfer of heat to gas mixture; exhaust gases are subjected to cooling. Specification describes also second variant of cleaning organic wastes and variants of plant proposed for realization of this method. EFFECT: enhanced ecological safety; possibility of obtaining products suitable for subsequent use. 32 cl, 1 dwg
