PROCESSING METHOD AND APPARATUS FOR DECREASING RADIOACTIVE SUBSTANCE ABSORBED IN MATERIAL TO SAFE LEVEL FOR LIVING ENVIRONMENT

摘要

Provided are a process and device for reducing radioactive material of an object containing the radioactive material to a safe level in a living environment.;Included are a step of performing at least a step of carrying out a heating process on the object, into which radioactive material is absorbed and/or adsorbed from an environment or which absorbs and/or adsorbs radioactive material from an environment, in a state where temperature is less than or equal to the critical temperature of water and pressure is greater than or equal to the saturated vapor pressure of water, or a step of abruptly releasing the pressure; and a step of separating, after the above step, into liquid and solid.