Decontamination of the contaminated water on severe nuclear accidents by titanium oxide adsorption

In order to establish a decontamination process for contaminated water that generated in a severe nuclear power plant accident such as the Fukushima accident, we proposed a new decontamination process. A new decontamination process is composed of co-decontamination of radioactive transition metals and Cs with hexacyanoferrate(II) ion, and decontamination of radioactive metals including Sr with titanium oxide adsorption. This study discussed the adsorptivity of a new titanium oxide and its applicability to the radioactive water after co-decontamination of transition metals and Cs. (author)