[1D14-19] 1F 2

4:40 PM - 4:55 PM JST(7:40 AM - 7:55 AM UTC)

[1D16] Study on the total optimization of Solid Waste management of 1F(3) Treatment and Disposal Options for Rational Management of ALPS Slurry

*Taihei Funabashi¹, Takahiro Kikuchi², Koji Takahashi², Eriko Irisawa², Hideyuki Yokota³, Kyoichi Asano³, Masamichi Obata³, Kazuyuki Kato⁴, Tatsuji Yoshioka⁴, Ryu Kaneko⁴ (1. JANUS, 2. JGC, 3. TEPCO HD, 4. NDF)

Keywords:

Treatment strategy,Material balance,Disposal classification

Options for stabilization, pretreatment, waste form production, storage, and disposal of ALPS slurry were systematically investigated.At present, ALPS slurry is stored in HICs in a water-containing state. Stabilization can be achieved by dewatering, and the filter press method was selected as the treatment option.For waste form production, the following options were examined: low-temperature processes (cement solidification and AAM solidification), high-temperature processes (vitrification), and encapsulation in a disposal container (without solidification).The radioactivity inventory of the waste forms was estimated based on the material balance for each option, and disposal classifications were examined. Based on previous preliminary safety assessments for disposal, the resulting waste forms are expected to correspond to near-surface disposal (pit disposal) or intermediate-depth disposal.