Abstract:A study was conducted to evaluate if crystalline silicotitanate (CST) could be used to remove 90Sr from highly chelated tank waste in support of tank waste immobilization. CST was shown to remove cesium from a high‐complexant tank waste, AN‐102 diluted to 5.7 M sodium ions (Na+), comparing well with an existing adsorption isotherm generated with a simplified simulant without chelates. Strontium, barium, and lead were also shown to partially exchange onto the CST, despite their expected chelation and without im… Show more
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