“…The search for another effective and less expensive adsorb is therefore interesting. Several studies have been carried out on the investigation of new precursor less expensive and do not use the forest reserves, such as peat, chitin (Ghorbel-Bellaaj et al, 2011), silica (Givianrad et al, 2013), sawdust (Johannes et al, 2013), bagasse pith and fly ash (Esfandiar et al, 2014;Reinik et al, 2015). From this point of view, the use of bituminous shale as year adsorb is of great interest because of its efficiency, their chemical composition, rich in active functions (Chen et al, 2010;Ichcho et al, 2005).…”