Advanced solidification system using high performance cement
Advanced cement solidification is proposed for the solidification of radioactive waste such as spent ion exchange resin, incineration ash and liquid waste. A new, high performance cement has been developed to raise volume reduction efficiency and lower radioactivity release into the environment. It consists of slag cement, reinforcing fiber, natural zeolite and lithium nitrate (LiNO{sub 3}). The fiber allows waste loading to be increased from 20 to 55kg-dry resin/200L. The zeolite, whose main constituent is clinoptilolite, reduces cesium leachability from the waste form to about 1/10. Lithium nitrate prevents alkaline corrosion of the aluminum, contained in ash, and reduces hydrogen gas generation. Laboratory and full-scale pilot plant experiments were performed to evaluate properties of the waste form, using simulated wastes. Emphasis was laid on improvement of solidification of spent resin and ash.
- OSTI ID:
- 220937
- Report Number(s):
- CONF-950917--; ISBN 0-7918-1219-7
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ASHES
CEMENTING
CEMENTS
CHEMICAL COMPOSITION
FIBERS
HYDROGEN PRODUCTION
ION EXCHANGE MATERIALS
LEACHING
LIQUID WASTES
LITHIUM NITRATES
LOADING RATE
MATERIALS TESTING
MITIGATION
PILOT PLANTS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTE PROCESSING
TENSILE PROPERTIES
WASTE FORMS
ZEOLITES