Process and apparatus for treating a waste gas including combustible gases and radioactive KR-85
Patent
·
OSTI ID:6706885
Hydrocarbons are removed by combustion from a waste gas including oxygen, hydrocarbons and radioactive krypton-85 (hereinafter referred to as ''Kr-85''), which is generated in a nuclear reactor and a fuel recycling plant without adopting the reduction method of oxygen by adding hydrogen; the resultant gas is caused to pass through an activated charcoal layer and Kr-85 is adsorbed to the activated charcoal layer; the rest of gas is discharged to the atmosphere; further oxygen remaining in the activated charcoal layer is returned to a process of removing hydrocarbons; and thereafter Kr-85 adsorbed to the activated charcoal layer is desorbed, condensed and recovered.
- Assignee:
- Hitachi, Ltd.
- Patent Number(s):
- US 4092133
- OSTI ID:
- 6706885
- 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
ACTIVATED CARBON
ADSORBENTS
ADSORPTION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON
CHEMICAL REACTIONS
COMBUSTION
ELEMENTS
EVEN-ODD NUCLEI
FUEL REPROCESSING PLANTS
GASEOUS WASTES
HOURS LIVING RADIOISOTOPES
HYDROCARBONS
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KRYPTON 85
KRYPTON ISOTOPES
MANAGEMENT
NONMETALS
NUCLEAR FACILITIES
NUCLEI
OFF-GAS SYSTEMS
ORGANIC COMPOUNDS
OXIDATION
POWER REACTORS
PROCESSING
RADIOACTIVE WASTE PROCESSING
RADIOISOTOPES
REACTORS
SORPTION
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YEARS LIVING RADIOISOTOPES
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTIVATED CARBON
ADSORBENTS
ADSORPTION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON
CHEMICAL REACTIONS
COMBUSTION
ELEMENTS
EVEN-ODD NUCLEI
FUEL REPROCESSING PLANTS
GASEOUS WASTES
HOURS LIVING RADIOISOTOPES
HYDROCARBONS
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KRYPTON 85
KRYPTON ISOTOPES
MANAGEMENT
NONMETALS
NUCLEAR FACILITIES
NUCLEI
OFF-GAS SYSTEMS
ORGANIC COMPOUNDS
OXIDATION
POWER REACTORS
PROCESSING
RADIOACTIVE WASTE PROCESSING
RADIOISOTOPES
REACTORS
SORPTION
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YEARS LIVING RADIOISOTOPES