[3I01-05] Low-radioactive Waste Treatment

[3I03] Development of treatment for low radioactive waste in Tokai Reprocessing Plant

(23)Study on the effect of impurities present in waste liquid on cement solidification

*Ryotatsu Matsushima¹, Masato Takano¹, Daiki Atarashi², Yasuo Saito¹ (1. JAEA, 2. Shimane Univ.)

Keywords:Tokai Reprocessing Plant, Low Active Waste Treatment Development Facility, Low level radioactive effluent, Sodium carbonate, Cement based encapsulation

The low radioactive waste treatment development facility (LWTF) of the Tokai Reprocessing Facility is constructed as a facility for treating low radioactive liquid waste and solid waste generated from the reprocessing facility, and cold tests are being conducted. In this facility, it was decided to use a borate to solidify the nitrate waste solution generated along with the treatment of liquid waste, but it is currently planned to use cement waste after replacing it with carbonate waste liquid. And they are proceeded with the study and design for installation of equipment now. In this report, regarding this carbonate waste liquid, it is expected that impurities exist in the waste liquid, and the investigation and the influence are examined.