Treatment method for used ion exchange resin and treatment apparatus for used ion exchange resin

A treatment apparatus for a used ion exchange resin, comprising:

• a reaction tank capable of housing a used ion exchange resin, the used ion exchange resin having an ion exchange group with at least a radionuclide or a heavy metal element adsorbed thereon;
• a first iron compound supplier connected to the reaction tank, capable of holding an iron compound, and capable of supplying the iron compound to the reaction tank;
• a first hydrogen peroxide supplier connected to the reaction tank, capable of holding hydrogen peroxide, and capable of supplying the hydrogen peroxide to the reaction tank;
• a first ozone supplier connected to the reaction tank and capable of supplying ozone into a liquid phase in the reaction tank;
• a regeneration tank connected to the reaction tank, capable of holding liquid supplied from the reaction tank, and capable of supplying the held liquid therein to the reaction tank;
• and
• an organic substance decomposer connected to the regeneration tank and capable of decomposing an organic substance included in the liquid in the regeneration tank.