As a whole, our findings showed that: 1) the pre-ac- tivation of brick pellets with HCl contributed to enhance significantly the rate constants for Fe2+-ions adsorption with values increasing at room temperature from 0.078 to 0.102 (1/mn) for the first-order kinetics and from 0.060 to 0.830 g/(mg·min) for the second-order kinetics; and 2) a rise in temperature from 20°C to 39.5°C led to an in- crease of the pseudo-first order kinetic constant k1 (from 0.102 to 0.159 1/min) and the pseudo-second order ki- netic constant k2 (from 0.830 to 1.315 g/(mg·min)).