Reactions of a prototype nuclear-waste ceramic with a hot magnesium-rich brine
Description
Prototype ceramic nuclear waste forms have been experimentally reacted with a high calcium and magnesium brine under hydrothermal conditions. The said reaction products and fluid were analyzed at the end of the experiment. Alteration of the waste forms was observed and the reaction products identified. Uptake of cesium, rubidium, strontium, barium, lanthanum and neodymium into the brine was measured with a strong temperature dependence, i.e., increased concentrations with increased temperature. The concentrations of the six elements also increased with time, and imply that dissolution of the ceramic is controlled by diffusion and/or crystalline dissolution mechanism. 20 figures, 18 tables
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS, PC A04/MF A01 as DE83002762.
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Additional details
Publishing Information
- Imprint Pagination
- 66 p.
- Report number
- ONWI--307
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 14742096
- Subject category
- S61: RADIATION PROTECTION AND DOSIMETRY; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BARIUM; BRINES; CERAMICS; CESIUM; CHEMICAL REACTIONS; DISSOLUTION; EXPERIMENTAL DATA; HIGH TEMPERATURE; LANTHANUM; METAMORPHISM; NEODYMIUM; RADIOACTIVE WASTES; RUBIDIUM; STABILITY; STRONTIUM; TEMPERATURE DEPENDENCE
- Descriptors DEC
- ALKALI METALS; ALKALINE EARTH METALS; DATA; ELEMENTS; INFORMATION; MATERIALS; METALS; NUMERICAL DATA; RADIOACTIVE MATERIALS; RARE EARTHS; WASTES