Study on wet waste storage; Irradiation behavior of carbonate slurry and wet zeolite

Yamagishi, Isao ; Motooka, Takafumi

Highly radioactive wastes such as carbonate slurry and zeolite are generated from the contaminated water treatment system at Fukushima Daiichi Nuclear Power Station. We have studied radiolytic gas generation in wet wastes for their safe storage. Carbonate slurry or wet zeolite as a simulated waste was irradiated by -ray. Radiolytic gas generation resulted in the slurry expansion and supernatant separation from the slurry. The supernatant was observed during irradiation of the zeolite immersed fully in seawater but not in case of the partial immersion.