scholarly journals SENSITIVITY OF HANFORD IMMOBILIZED HIGH LEVEL WASTE (IHLW) GLASS MASS TO CHROMIUM & ALUMINUM PARTITIONING ASSUMPTIONS

2004 ◽  
Author(s):  
P J CERTA
Keyword(s):  
High Level Waste ◽  
Glass Mass ◽  
High Level

The Effect of Gamma Radiation on the Dissolution of High-Level Waste Glass in Boom Clay

2000 ◽  
Vol 663 ◽  
Author(s):  
K. Lemmens ◽  
P. Van Iseghem
Keyword(s):  
Bubble Formation ◽  
Bentonite Clay ◽  
High Level Waste ◽  
Glass Mass ◽  
Γ Radiation ◽  
Boom Clay ◽  
Leach Rate ◽  
The Media ◽  
Ph Decrease ◽  
High Level

ABSTRACTThe effect of γ-radiation on the dissolution of candidate high-level waste glasses was investigated in potential disposal environments at 90°C. The media consisted of mixtures of Boom Clay, bentonite clay and cement with clay water. During the experiments the pH of Boom Clay decreased, probably mainly by radiolytical oxidation of pyrite. The addition of bentonite, cement and glass buffered the pH decrease. Under radiation the glass mass losses decreased, whereas the leach rate of soluble elements was not influenced or appeared to increase. This is explained through the radiolytical acidification, and possibly by bubble formation in the glass.

Effects of Aging on the Solubility of Palladium

1995 ◽  
Vol 412 ◽  
Author(s):  
C. Oda ◽  
H. Yoshikawa ◽  
M. Yui
Keyword(s):  
Aqueous Solution ◽  
Aging Time ◽  
Room Temperature ◽  
High Level Waste ◽  
Anaerobic Conditions ◽  
Dilute Aqueous Solution ◽  
Waste Repository ◽  
Ph Range ◽  
Effects Of Aging ◽  
High Level

AbstractPalladium solubility was measured in a dilute aqueous solution at room temperature in the pH range from 3 to 13 under anaerobic conditions. Crystalline Pd metal was clearly visible and the concentration of palladium in solution decreased gradually with aging time. The palladium concentrations in solution were less than 9.4×10-10M in the pH range from 4 to 10 and increased to 10-7M in the pH range greater than 10. This study suggests that palladium concentrations in certain high-level waste repository environments may be limited by Pd metal and may be less than 10-9M.

Performance assessment of the disposal of vitrified high-level waste in a clay layer

2001 ◽  
Vol 298 (1-2) ◽  
pp. 125-135 ◽  
Author(s):  
Dirk Mallants ◽  
Jan Marivoet ◽  
Xavier Sillen
Keyword(s):  
Performance Assessment ◽  
High Level Waste ◽  
Clay Layer ◽  
High Level

Use of microwave energy in reprocessing of high-level waste

Atomic Energy ◽  
1992 ◽  
Vol 73 (3) ◽  
pp. 730-734 ◽  
Author(s):  
A. A. Kurkumeli ◽  
M. I. Molokhov ◽  
O. D. Sadkovskaya ◽  
V. I. Kononov ◽  
G. B. Borisov ◽  
...  
Keyword(s):  
Microwave Energy ◽  
High Level Waste ◽  
High Level
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