Solidification/stabilization of low-level radioactive wastes including hazardous substances from uranium fuel processing plants

Sato, Junya ; Takahashi, Yuta ; Sunahara, Jun*; Saito, Toshimitsu*; Yoshida, Yukihiko; Sone, Tomoyuki ; Osugi, Takeshi  

For low-level radioactive waste containing hazardous substances (mixed wastes) generated from uranium fuel processing plants, establishing appropriate solidification/stabilization methods is one of the key challenges for their safe and effective storage and disposal in Japan. This study investigated the solidification/stabilization methods of the mixed waste sludge containing hazardous substances of lead, cadmium and mercury by using various solidification materials. Additionally, the compressive strength of solidified products was investigated along with the leaching behavior of hazardous substances.