Patent ID: 9721689
Date: 2017-08-01
CPC Classifications: B09C,C02F,G21F

Claim:
1. A method for decontamination of an object comprising: introducing and dispering or dissolving an object to be decontaminated, which is contaminated with radioactive materials, into an eluting solvent to separate the radioactive materials from the object to be decontaminated by dissolution of the radioactive materials into the eluting solvent, the object to be decontaminated comprising contaminated soil and contaminated water; separating the radioactive materials dissolved in the eluting solvent and the object to be decontaminated into solid and liquid; collecting the soil after said solid-liquid separation and from which the radioactive materials have been removed by elution: electrolyzing the separated liquid containing the eluting solvent and the contaminated water after said solid-liquid separation by introducing the separated liquid into an electrolysis tank provided with an anode and a cathode; depositing metal ions comprising the radioactive materials on the cathode; collecting hydrogen containing tritium generated by the electrolysis in the electrolysis tank; and conveying the hydrogen to outside the electrolysis tank and there trapping the hydrogen.