Wa. Abbasi et M. Streat, ADSORPTION OF URANIUM FROM AQUEOUS-SOLUTIONS USING ACTIVATED CARBON, Separation science and technology, 29(9), 1994, pp. 1217-1230
The adsorption of uranium from aqueous solution has been investigated
using conventional commercially available activated carbons. It was fo
und that treatment with hot nitric acid oxidized the surface of activa
ted carbon and significantly increased the adsorption capacity for ura
nium in near-neutral and slightly acidic nitrate solutions. Equilibriu
m data were fitted to a simplified Freundlich isotherm for the purpose
of comparison of oxidized and as-received samples. The decontaminatio
n of aqueous solutions was investigated in small column experiments. A
n ion-exchange mechanism of uranium sorption from aqueous solution is
discussed.