Evaluation on the safety of solidified waste products and underground radionuclides movement

Leaching rate of cement-solified radwasts produced by the same method such as a Korean nuclear power plant was measured. The measurement method for the leached radionuclide concentration was attepmted to be standardization. And as for the underground radionuclide migration, analytical solution of the underground radionuclide transport equation was derived. Hydraulic conductivity and radionuclide sorption coefficients at clays were determined by a consolification test and batch process. Simulation for the prediction of underground radionuclide migration was performed by using above experimentally determined values as input data. (Author)