Research and development activities, Waste Fixation Program. Quarterly progress report, October--December 1977
Foaming was experienced in the joule-heated ceramic melter during conversion of simulated Savannah River Plant waste to glass. The foaming tendency was decreased by adding the glass-making additives as chemical compounds rather than as pre-formed glass. Operation of the 36-in.-dia spray calciner with a 300 l/h feed rate was demonstrated. Over 300 h of operating experience has now been accumulated with this unit. The variation of leach rate with pH was measured on four typical waste glasses over the pH range of 1 to 13. All four glasses had uniformly low leach rates over the range of pH 4 to 9. A series of waste glass samples were prepared in bead form and were spiked individually with /sup 99/Tc, /sup 233/U, /sup 237/Np, /sup 239/Am, and /sup 244/Cm, for studying the effect of various naturally occurring waters on leach rate. Demonstration laboratory encapsulations of four multibarrier waste forms on a 1-liter scale were completed. The waste forms were: (1) uncoated supercalcine in a vacuum-cast Al--12Si matrix, (2) PyC/Al/sub 2/O/sub 3/-coated supercalcine in a gravity-sintered copper matrix, (3) glass-coated supercalcine in a vacuum-cast Al--12Si matrix, and (4) simulated waste glass marbles in a vacuum-cast Pb--10Sn matrix. 11 figures, 2 tables.
- Research Organization:
- Battelle Pacific Northwest Labs., Richland, WA (USA)
- DOE Contract Number:
- EY-76-C-06-1830
- OSTI ID:
- 6326869
- Report Number(s):
- PNL-2265-4
- 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
CALCINATION
CHEMICAL REACTIONS
COLLOIDS
DATA
DATA FORMS
DECOMPOSITION
DISPERSIONS
DISSOLUTION
ENCAPSULATION
EXPERIMENTAL DATA
FOAMS
GLASS
HIGH-LEVEL RADIOACTIVE WASTES
INFORMATION
ISOLATED VALUES
LEACHING
MANAGEMENT
NUMERICAL DATA
PH VALUE
PHASE TRANSFORMATIONS
PROCESSING
PYROLYSIS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
RESEARCH PROGRAMS
SEPARATION PROCESSES
SOLIDIFICATION
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CALCINATION
CHEMICAL REACTIONS
COLLOIDS
DATA
DATA FORMS
DECOMPOSITION
DISPERSIONS
DISSOLUTION
ENCAPSULATION
EXPERIMENTAL DATA
FOAMS
GLASS
HIGH-LEVEL RADIOACTIVE WASTES
INFORMATION
ISOLATED VALUES
LEACHING
MANAGEMENT
NUMERICAL DATA
PH VALUE
PHASE TRANSFORMATIONS
PROCESSING
PYROLYSIS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
RESEARCH PROGRAMS
SEPARATION PROCESSES
SOLIDIFICATION
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES