Radioactive waste treatment system and method for treating radioactive waste liquid

摘要

Included in radioactive waste liquid α Remove nuclides α Problem to be solved: to provide a radioactive waste treatment system capable of compacting a nuclide removal device.Solution: the clad contained in the radioactive organic waste containing the cation exchange resin is dissolved in an organic acid aqueous solution (S1).Ozone is aerated in an organic acid aqueous solution to decompose the organic acid (S4).Clad adsorbed on dissolved organic waste α The nuclide is eluted by an organic acid salt aqueous solution (S2).Ozone is aerated in the organic acid salt aqueous solution to decompose the organic acid salt (S4).Generated in S4. α The pH regulating agent (acid, alkali, reducing agent, and oxidizing agent for water quality adjustment) is injected into the radioactive waste liquid containing the nuclide (S5).Within a radioactive waste liquid whose pH adjusts to a pH range of less than 4 and less than α Colloids of nuclides are produced.The colloid is removed by the filter (S6).Contained in radioactive waste discharged from the filter α Ions of nuclides α The apparatus is removed by the nuclide removing apparatus (S7).Diagram