Sorption of trace cesium on 21 Hanford Site sediment types

Sorption of trace cesium (Cs) was measured on 21 Hanford Site sediment types. A Box-Behnken statistical design was used to develop empirical-statistical equations predicting /sup 137/Cs sorption as a function of the equilibrium concentrations of macroions Na/sup +/, K/sup +/, and Ca/sup +2/ in solution over the concentration ranges of 3.0 to 0.001M, 0.2 to 0.002M, and 0.2 to 0.002M, respectively. These equations are required to estimate trace Cs transport from Hanford ground disposal sites. Average Cs sorption equations for the 21 sediments will be presented and discussed.