Decontamination of DWPF canisters by glass frit blasting
High-level radioactive waste at the Savannah River Plant will be incorporated in borosilicate glass for permanent disposal. The waste glass will be encapsulated in a 304L stainless steel canister. During the filling operation the outside of the canister will become contaminated. This contamination must be reduced to an accepable level before the canister leaves the Defense Waste Processing Facility (DWPF). Tests with contaminated coupons have demonstrated that this decontamination can be accomplished by blasting the surface with glass frit. The contaminated glass frit byproduct of this operation is used as a feedstock for the waste glass process, so no secondary waste is created. Three blasting techniques, using glass frit as the blasting medium, were evaluated. Air-injected slurry blasting was the most promising and was chosen for further development. The optimum parametric values for this process were determined in tests using coupon weight loss as the output parameter. 1 reference, 13 figures, 3 tables.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 5262277
- Report Number(s):
- DP-MS-83-111; CONF-840307-12; ON: DE84008286
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development and demonstration of the DWPF (Defense Waste Processing Facility) canister decontamination process using frit slurry blasting
Decontamination of Savannah River Plant waste glass canisters
Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ABRASIVES
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CLEANING
CONTAINERS
CORROSION RESISTANT ALLOYS
DECONTAMINATION
DISPERSIONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MIXTURES
NICKEL ALLOYS
SLURRIES
STAINLESS STEEL-304L
STAINLESS STEELS
STEELS
SUSPENSIONS