September 21, 2022
Journal Article
Evaluation of load behavior for select analytes in Hanford tank waste
Abstract
Crystalline silicotitanate (CST) inorganic ion exchanger is a candidate material for remediation of highly alkaline (pH >14) aqueous nuclear waste streams containing high sodium concentrations (>5 M). Ion exchange column testing with wastes from Hanford tanks AP-105, AP-107, and AW-102 was carried out to study the uptake of 137Cs to estimate the decontamination factor (DF) value. Additionally, DF values for uptake of Al, Ca, Pb, Np, Pu, U, and Sr were determined and ion exchange capacity of the CST toward these analytes was estimated.Published: September 21, 2022