High-level radioactive waste glass synthesis at low temperatures

Journal Article · Wed Oct 31 23:00:00 EST 1984 · Nucl. Technol.; (United States)

OSTI ID:5962855

Uetake, N; Kikuchi, M; Ozawa, Y

A low-temperature waste glass synthesis method for reducing the volatilization of radioactive high-level liquid waste (HLLW) components and the corrosion of furnace materials has been developed on a laboratory scale. This method is a sol-gel method, using the gel formation reaction of a sodium silicate solution in combination with calcination and sintering processes. Experiments to investigate the method's feasibility were conducted with nonradioactive simulated HLLW, and the glass obtained was characterized by infrared and Mossbauer spectroscopy. It was concluded that the radioactive waste glass synthesis was achieved by calcination at about 600/sup 0/C.

• Research Organization: Energy Research Laboratory, Hitachi, Ltd., Moriyamacho, Hitachi, Ibaraki 316, Japan
• OSTI ID: 5962855
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 67:2; ISSN NUTYB
• Country of Publication: United States
• Language: English

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ALKALI METAL COMPOUNDS
CALCINATION
CHEMICAL REACTIONS
CORROSION
DECOMPOSITION
FABRICATION
FEASIBILITY STUDIES
FURNACES
GELATION
HIGH TEMPERATURE
HIGH-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
OXYGEN COMPOUNDS
PROCESSING
PYROLYSIS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
SILICATES
SILICON COMPOUNDS
SINTERING
SODIUM COMPOUNDS
SODIUM SILICATES
THERMOCHEMICAL PROCESSES
VITRIFICATION
VOLATILITY
WASTE MANAGEMENT
WASTE PROCESSING
WASTES