Abstract:
Abstract
The objective of this work is to prepare an innovative magnetic adsorbent (SBAM) from a
conventional adsorbent based on chemically activated sawdust (SBA) and to test the capacity of
these two adsorbents for the elimination of ibuprofen (IBP) water. The SBAM adsorbent is
prepared by coprecipitation of Fe2+/Fe3+ ferric ions in a basic medium. The study of the
adsorption of IBP on these two adsorbents and under different operating conditions (dose of
adsorbents, contact time, pH, initial concentration, effect of salts, and temperature) showed that
pH is the factor which influences the elimination of IBP the most and that the optimal pH is
equal to 2. The kinetic study of the adsorption showed that the elimination of IBP on the two
adsorbents is rapid and that the model of the pseudo second order is the most adequate. The
experimental results at equilibrium adsorption are best described by the Langmuir model
indicating adsorption of IBP on a homogeneous monolayer of the adsorbent. The chemical and
thermal regeneration tests of the two adsorbents are satisfactory and their reuse can reach three
cycles.
