Removal of 60Co and 137Cs from simulated NPP trap waters

Development of a purification technology for treatment of medium- and low-activity radioactive waste of radiochemical production from Co-60 and Cs-137

“…The developed method has significant advantages over the known (indicated earlier [3]- [7]) methods of purification of LRW generated at radiochemical plants and nuclear power stations due to a more complete oxidation of organic components of LRW in the dynamic mode of the column operation during considerably less time available for contact (50÷130 sec) combined with high efficiency of the column (3÷15 column volume/per hour), at lower temperature of the process (47,5÷80°ɋ). A column with the filling layer of a catalyst and a dynamic mode of oxidation decomposition stage condition simple hardware arrangement of the process.…”

“…Well-known methods of extracting the radionuclide 60Co from LRW at nuclear power plants are introducing Fe (III) and Ni (II) cations into LRW upon contact with potassium ferricyanide with molecular ratio from 2:1 to 4:1, allowing the solution to stand at room temperature and centrifugal separation of residue [3]. However, since there is no stage of oxidation of organic components of LRW, reagent consumption and sludge formation increase.…”