Abstract
Natural zeolite, clinoptilolite was tested for its ability to remove uranium from aqueous solutions. Influence parameters to the sorption process, such as initial uranium concentration, pH, contact time and temperature were investigated. Distribution coefficients of uranium on clinoptilolite were measured by batch technique. Experimental isotherms evaluated from the distribution coefficients were fit to Langmuir, Freundlich and Dubinin-Radushkevich (D-R) models. Values of ΔH and ΔS were found as 0.93 and 56.09 J/mole, respectively. It was observed that the adsorption process is endothermic. Kinetics of uranium sorption was investigated at different time intervals at 30°C. The reaction rate and diffusion constant were calculated.
| Original language | English |
|---|---|
| Pages (from-to) | 541-548 |
| Number of pages | 8 |
| Journal | Journal of Radioanalytical and Nuclear Chemistry |
| Volume | 264 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jun 2005 |
| Externally published | Yes |
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