[3B01-10] Dose Estimation

[3B07] Application of a model for evaluating dissolved uranium concentration considering cation exchange capacity to samples from major rivers in Japan

*Tatsuo Saito¹ (1. JAEA Decommissioning and Radioactive Waste Management Head Office Radioactive Wastes Disposal Center)

Keywords:uranium, cation exchange capacity, uranyl carbonate complex, adsorption/desorption model

In order to evaluate the amount of uranium, which is a major radionuclide in the safety assessment of disposal of wastes from research, medical and RI using facilities, we are developing a model to evaluate the migration behavior of uranium in consideration of environmental conditions. In this study, in order to evaluate the applicability of the developed model to the actual environment, the uranium concentration in the river was evaluated from the uranium concentration in the soil around the river in Japan and was compared with the measured value.