Removal of alkaline earth metals during the formation of manganese oxide using biomass toward elimination of Ra

Kato, Tomoaki ; Onuki, Toshihiko; Yu, Q.*

In this research, we have demonstrated the uptake of alkaline earth metals toward elimination of Ra during the formation of biomass-MnOx. I concluded that higher elimination of Ba in solution was observed at initial stage of biomass MnOx production within 2h after KMnO addition and decreased of surf ace area associated with aggregation of colloidal MnOx occur the decreased of elimination efficiency of Ba. We also found that positive correlation is observed between the removal of alkaline earth metal and ionic radius.