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Résumé :
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In this work, the removal of a β-blocker, atenolol, and a pesticide, isoproturon, from aqueous solutions by adsorption on granular activated carbon fixed-bed columns has been studied. The effect of important operation parameters on breakthrough curves as column length (Z = 1.0–3.0 cm), initial concentration of atenolol or isoproturon (C0 = 50.0–500.0 μg·L–1), and volumetric flow rate (Q = 1.5 mL·min–1) was studied. Breakthrough time of the bed was found to increase with an increase in the value of the column length, and with a decrease in the value of initial concentration or flow rate. Mathematical models, as Bohart–Adams, Thomas, Yoon–Nelson, and Clark were applied to the experimental data for the prediction of the breakthrough curves, and to determine the characteristic parameters of the bed.
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