ABSTRACT
T h e resu lts o f th e b a tch te s ts sh o w ed th a t th e m o n o v a len t m etals, such as cesium and silver, w e re p o o rly ad so rb ed by ac tiv a ted alum ina. T h e p o lyva len t ca tio n ic m etals, h o w ev er, exh ib ited significant red u c tio n in c o n c en tra tio n a t equ ilib rium w ith ac tiv a ted alum ina. T h e rem ova l p e rcen tag es a t g iv en a lum ina d o se in c reased as th e m etal valan ce increased , ind icating a p o sitiv e co rre la tio n b e tw e en a d so rp tio n affinity and valance.
