[1B04-07] Fukushima Daiichi NPT Accident Waste Treatment 2

[1B07] Study of Zeolite Mixing Ratio on Cement Solidification of Cesium-Adsorbed Zeolite

*Kazuhito Niwase¹ (1. NIT,Hachinohe College)

Keywords:Cesium adsorbed zeolite, Cement solidification, Disposal of radioactive waste, Fly-ash, Compressive strength

Disposal of radioactive waste is a problem for the decommissioning of the Fukushima No. 1 nuclear power plant. Cesium adsorbed zeolite is a secondary waste generated in the process of treatment of radioactively contaminated water. A disposal method of cesium adsorbed zeolite has not been established. The purpose of this study is to contribute to the feasibility study of cement solidification technology of cesium adsorbed zeolite. In this study, the zeolite mixing amount and the type of chemical admixtures were examined by the compressive strength test and the flow test. As a result, it was confirmed that the solidified form had sufficient fresh properties and compressive strength as required.