METHOD FOR REMOVING RADIOACTIVE CESIUM

摘要

PROBLEM TO BE SOLVED: To provide a method for removing radioactive cesium which can perform heating processing for separating radioactive cesium from waste at sufficiently low temperatures and can successfully achieve a high level of removal of radioactive cesium and reduction of contamination by radioactive cesium.SOLUTION: The method for removing radioactive cesium includes the steps of: mixing waste contaminated by radioactive cesium with a separation accelerator containing a mixture or double salt melting at temperatures of not higher than 700°C which is prepared with at least two different types of chlorides; heating the obtained mixture as processing target to make the radioactive cesium in the mixture vaporize; and washing to elute the radioactive cesium remaining in the processing target by washing the processing target by water after the heating step.