2022 Fall Meeting
Sep 7 - Sep 9, 2022Ibaraki University Hitachi Campus
2022 Fall Meeting
Sep 7 - Sep 9, 2022Ibaraki University Hitachi Campus
[1A12]Effect of solution mixing on continuous removal of radioactive strontium from fresh water by column co-crystallization with calcium carbonate
*Tsuneki Ichikawa1,2, Kazuo Yamada2(1. Hokkaido Univ., 2. NIES)
Keywords:
radiostrontium,co-crystallization,calcium carbonate,decontamination factor,static mixer
Rdiostrontium in fresh water was decontaminated by passing through a crystalline CaCO3-packed column after mixing the water and a NaCO3 aqueous solution with a static mixer. The decontamination took place by co-crystallization with CaCO3 in the supersaturated solution of CaCO3. The decontamination factor increased with increasing the degree of super saturation, which was maximized by the perfect mixing of the solutions. To use a static mixer therefore increased the decontamination factor as well as the stability of the factor.