[2B10-14] Treatment of Contaminated Water and Soil

[2B12] Development of the sintering solidification method for spent zeolite to long-term stabilization (1)

Overview of the research

*Tsuyoshi Arai¹, Aiki Watanabe¹, Fumihiro Kato¹, Masahiro Mouri¹, Akane Usui², Takashi Ohnishi², Kosuke Tanaka², Minoru Matsukura³, Hitoshi Mimura³ (1. Shibaura Institute of Technology, 2. Japan Atomic Energy Agency, 3. Union Showa K.K.)

Keywords:Sintering solidification, Spent zeolite, Pollucite, Contaminated water treatment, Fukushima daiichi nuclear power station

In this work, it is aimed to develop a stable solidification method for spent zeolite which adsorbed radionuclides such as Cs used in contaminated water treatment of Fukushima Daiichi Nuclear Power Station. In particular, it is developed a sintering solidification method by using no pressure and no compression of spent zeolite which adsorbed Cs, and it will be studied the volume reduction of solidified body by this method. Furthermore, in this research, it will clarify effects of radioactive materials on sintered solidified bodies and it will establish conceptually design for the processes. In this meeting, we will report on the overview of the research and basic test results.