[3G09-13] Geopolymer Solidification

[3G12] Novel solidification method for secondary waste generated from the contaminated water treatment by using sodium aluminate and silica.

*Nobutake Horiuchi¹, Hisao Satoh¹, Ryuichi Komatsu², Yuki Kimura³, Harutoshi Asakawa² (1. Mitubishi Materials, 2. Yamaguchi University, 3. Hokkaido University)

Keywords:contaminated water treatment, secondary waste, zeolite, carbonate slurry, geopolymer, sodium aluminate, silica, mineralization

We are developing a method to solidify the secondary waste generated from contaminated water treatment of Fukushima Daiichi nuclear accident. We report on a novel method to achieve high waste filling ratio by mineralization using sodium aluminate and silica as material using geopolymer technology with excellent properties such as resistance to dissolution and radiation resistance.