BITUMEN TREATING METHOD OF RADIOACTIVE WASTE CONSISTING OF CATION EXCHANGE RESIN AND/OR ANION EXCHANGE RESIN

摘要

The invention relates to a process for bituminizing radioactive waste constituted by cation and/or anion exchange resins. This process comprises a resin pretreatment stage performed so as to replace the H+ ions of the cation exchange resins by ions chosen from the group including Ca++, Sr++ and Ba++ and/or for replacing the OH- and/or Cl- ions of the anion exchange resins by an anion chosen from the group including NO3-, HCO2- and CH3CO2-. This pretreatment makes it possible to increase the capacity of the coating installation and limit the swelling in water of the bituminized coatings obtained.