Combined Extraction of Cesium, Strontium, and Actinides from Alkaline Media: An Extension of the Caustic-Side Solvent Extraction (CSSX) Process Technology.

Technical Information Center Oak Ridge Tennessee

关键词: Waste storage facilities;    Long term;    Waste processing;    Alkalies;    Actinides;   

RP-ID  :  DE2005836576

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The wastes present at DOE long-term storage sites are usually highly alkaline, and because of this, much of the actinides in these wastes are in the sludge phase. Enough actinide materials still remain in the supernatant liquid that they require separation followed by long-term storage in a geological repository. The removal of these metals from the liquid waste stream would permit their disposal as low-level waste and dramatically reduce the volume of high-level wastes. The actinide extraction and recovery systems currently in place presently are not optimal, and the alkaline conditions and presence of other radioactive metals, Cs and Sr, complicate efficient extraction.