초록 |
As the number of aged nuclear facilities increases, the technical development for both decontamination and reduction of decommissioning radioactive waste is actively carried out. Under this circumstance it is important to assess the radioactivity inventory of wastes depending on their types for the establishment of disposal strategies. In this study, we evaluated the pre-treatment conditions of concrete using a home-made sample. In addition, we investigated on the chemical separation behaviors of non-volatile elements including Re, Sr, Fe, Ni, Nb in Ca-rich medium. |