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System for chemically digesting low level radioactive, solid waste material

Patent ·
OSTI ID:5257876
;
An improved method and system are disclosed for chemically digesting low level radioactive, solid waste material having a high through-put. The solid waste material is added to an annular vessel (10) substantially filled with concentrated sulfuric acid. Concentrated nitric acid or nitrogen dioxide is added to the sulfuric acid within the annular vessel while the sulfuric acid is reacting with the solid waste. The solid waste is mixed within the sulfuric acid so that the solid waste is substantilly fully immersed during the reaction. The off gas from the reaction and the products slurry residue is removed from the vessel during the reaction.
Assignee:
Dept. Of Energy
Patent Number(s):
US 4313845
OSTI ID:
5257876
Country of Publication:
United States
Language:
English

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Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
AIR
CHALCOGENIDES
CHEMICAL REACTIONS
DIGESTION
DISPERSIONS
FLUIDS
GASES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LOW-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
MIXING
MIXTURES
NITRIC ACID
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
SLURRIES
SULFURIC ACID
SUSPENSIONS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES