[en] Considerable amount of several sorts of radioactive solid and liquid waste including CaF₂, NaF, Al₂O₃ had been produces in the various examinations. These waste are in the custody of Refinement Conversion Facility. As the inventory of CaF₂ contained uranium is excessive, it has been treated by the uranium removing processes. These processes are use of hydrochloric acid or sulfuric acid. The applicability of those processes used for CaF₂ has been researched for the chemical trap(NaF) and fluid medium (Al₂O₃), and the mass balance through the processes has been studied. The conclusion is as below. The process using hydrochloric acid to NaF is applicable. Applying the process using sulfuric acid to NaF results in the problematic collection of sulfuric acid after the process. The application of the process to Al₂O₃ has a problem of the unsolubility of Al₂O₃ in both the hydrochloric acid or sulfuric acid process. (author)