Nitrate destruction in an elutriated fluid-bed calciner
Nitrate destruction was demonstrated using an elutriated fluid-bed calciner process developed for nuclear fuel mixed-oxide conversion. Testing was directed to treatment of sodium nitrate, a major waste component at the Hanford Site. One test was also performed with copper nitrate. All tests produced low concentrations of NO/sub x/ in the offgas. The chemistry developed for uranium and plutonium nitrate appears to apply to other metal nitrates. The copper nitrate test was successful, with over 90% of the nitrate converted to elemental nitrogen and water and with recovery of a granular, free-flowing copper product. Tests with sodium nitrate were not successful due to fusion of sodium carbonate in the calciner bed and plugging of the calciner. Further development of the elutriated fluid-bed system would be required to process high sodium nitrate waste solutions.
- Research Organization:
- Westinghouse Hanford Co., Richland, WA (USA)
- DOE Contract Number:
- AC06-87RL10930
- OSTI ID:
- 5999652
- Report Number(s):
- DOE/HWP-39; WHC-EP-0062; ON: DE88000670
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
510200 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
CALCINATION
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
DISPERSIONS
HANFORD RESERVATION
MANAGEMENT
MIXTURES
NATIONAL ORGANIZATIONS
NITRATES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PROCESSING
PYROLYSIS
RADIOACTIVE WASTE PROCESSING
SODIUM COMPOUNDS
SODIUM NITRATES
SOLUTIONS
THERMOCHEMICAL PROCESSES
US DOE
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WASTE PROCESSING