Decontamination of the HEPA filters: July--September 1977
Dissolution parameters (in various reagents) of americium-241 and plutonium-239 oxide mixtures, uranium-233 oxide, neptunium-237 oxide, curium-244, thorium-232 oxide, and plutonium dioxide were determined. The reagents used were various concentrations of NHO/sub 3/-HF-H/sub 2/SO/sub 4/,HNO/sub 3/-(NH/sub 4/)/sub 2/Ce(NO/sub 3/)/sub 6/, HNO/sub 3/-HF, and HNO/sub 3/. Both simulated contaminated HEPA filter media and actual glovebox filter media from spent filters were used. The maximum decontamination factor achieved was 833 using a six-stage dissolution process. Also, plutonium dioxide was fused with sodium carbonate at various elevated temperatures, and a dissolution percentage was determined.
- Research Organization:
- Mound Facility, Miamisburg, Ohio (USA)
- DOE Contract Number:
- EY-76-C-04-0053
- OSTI ID:
- 5093792
- Report Number(s):
- MLM-2491
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
AIR FILTERS
ALPHA DECAY RADIOISOTOPES
AMERICIUM 241
AMERICIUM ISOTOPES
AMMONIUM COMPOUNDS
AMMONIUM NITRATES
CERIUM COMPOUNDS
CERIUM NITRATES
CHALCOGENIDES
CLEANING
CURIUM 244
CURIUM ISOTOPES
DECONTAMINATION
DISSOLUTION
EQUIPMENT
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FILTERS
GLOVEBOXES
HEAVY NUCLEI
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
ISOTOPES
LABORATORY EQUIPMENT
NEPTUNIUM 237
NEPTUNIUM ISOTOPES
NITRATES
NITRIC ACID
NITROGEN COMPOUNDS
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PLUTONIUM 239
PLUTONIUM COMPOUNDS
PLUTONIUM DIOXIDE
PLUTONIUM ISOTOPES
PLUTONIUM OXIDES
POLLUTION CONTROL EQUIPMENT
RADIOISOTOPES
RARE EARTH COMPOUNDS
REMOVAL
SEPARATION PROCESSES
SULFURIC ACID
THORIUM 232
THORIUM ISOTOPES
TRANSURANIUM COMPOUNDS
URANIUM 233
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES