[1A01-05] Waste at Fukushima Daiichi NPS

[1A03] Development of inventory evaluation methods for the radioactive wastes of Fukushima Daiichi Nuclear Power Station

(16) Practical grouping of radioelements and wastes in the modelling estimation method

*Daisuke Sugiyama¹, Shingo Tanaka ¹, Yoshikazu Koma^2,3, Youko Takahatake^2,3, Yoshio Aoki³ (1. CRIEPI, 2. JAEA, 3. IRID)

Keywords:Radioactive Waste at Fukushima Daiichi Nuclear Power Station, Modelling Waste Inventory Estimation Method, Transport Ratio, Grouping of Elements, Bayesian Inference

A reasonable method is investigated to set radionuclide transport parameters in the modelling estimation method of the radionuclide inventory in wastes generated at the Fukushima Daiichi Nuclear Power Station, considering grouping of radioelements and position of sampling of wastes and contaminants. It is expected that the method will improve the accuracy of the inventory of dominant radionuclides in the safety assessment of waste disposal. Some technical issues are suggested for the waste characterization project.