Use of Multi-Dimensional Sorption Data-Sets to Constrain Models of Radionuclide-Solid Interactions

摘要

In order to adequately constrain surface complexation models for radionuclide sorption,large 'multi-dimensional' data-sets,showing the dependence of sorption on numerous experimental parameters,are required.This paper describes how large sorption databases were used to develop surface complexation models of U(VI) uptake on kaolinite and ferrihydride.It is showno that the shape of U uptake curves as a function of pH and total U(EPSILONU) can be used to distinguish between U adsorption and the precipitation of amorphous uranyl hydroxide.