Open AccessCombined Extraction of Cesium, Strontium, and Actinides from Alkaline Media: An Extension of the Caustic-Side Solvent Extraction (CSSX) Process Technology
Author(s) -
Kenneth N. Raymond
Publication year - 2004
Language(s) - English
Resource type - Reports
DOI - 10.2172/836576
Subject(s) - actinide , extraction (chemistry) , strontium , hazardous waste , solvent extraction , radioactive waste , waste management , caesium , alkaline earth metal , environmental science , chemistry , radiochemistry , materials science , nuclear chemistry , metallurgy , inorganic chemistry , chromatography , engineering , metal , organic chemistry
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