METHOD OF RE-CYCLING OF ORGANIC RADIOACTIVE WASTE Russian patent published in 2006 - IPC G21F9/14 G21F9/20 

FIELD: re-cycling of radioactive waste.

SUBSTANCE: method of re-cycling of organic radioactive waste is based upon burning of waste followed by extraction of radionuclides and cleaning of withdrawn gases. Waste is fed discretely through air-atomizing burner from its top to heated bottom of reactor. Evaporated waste is burned in reactor by using ignition source. Hot vapor-shaped products of burning are cooled down in top part of reactor due to expansion and air supply in the reactor. After that waste is bubbled in trap containing sodium hydroxide solution being subject to cleaning from phosphoric anhydride, carbon oxide and nitrogen. Then gases are cleaned from sodium hydroxide aerosols by means of aerosol filter. They gases are subject to oxidation onto copper-containing catalyst warmed up to 250-300°C. Solid waste is removed from walls of lower part of reactor for subsequent extraction of radionuclides.

EFFECT: increased depth of cleaning; simplified method.

1 tbl, 1 dwg, 1 ex