In this study, a new adsorbent has been developed by activating bone dromedary (calcined at 600 °C for 12 hours) with hydrochloric acid (HCl) at different concentrations, which significantly increased capacity for adsorbing fluorides. The effects of activator concentration were studied. The results show that the adsorbent is optimized for a concentration of the activator (HCl) around 0.05M. The adsorption isothermal data were well adjusted by the Freundlich model and the maximum adsorption capacity obtained by the Langmuir model is 17.24 mg / g at 25° C ± 2° C. The adsorption kinetics follows the pseudo second order model and the adsorption equilibrium is reached in 90 minutes.
Adsorption of fluorides on dromedary bones charred and enabled with hcl
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