抄録
Sorption characteristics of Co which is rather troublesome nuclide from the aspect of low level radioactive waste disposal was studied.
By use of ultraviolet-visible spectrophotometer, coexistence of ionic and colloidal cobalts was verified in aqueous solution with pH>7. Column test was carried out with pH=8.75 and it showed that breakthrough curve obtained consists of two types of curves due to ionic and colloidal cobalts.
Moreover, breakthrough curve based on multicomponent ion exchange and deep bed filtration theories was calculated. Good agreement between calculation and experiment was obtained.
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