Valorisation d’une argile de gisement local dans le domaine de la décoloration des eaux de l’industrie textile

Abstract

The study of the phenomena which govern the removal by adsorption of methylene blue by samples of bentonite, TV (bentonite extracted from the deposit of M'Zila (Mostaganem)) and PF (TV treated at the level of the ENOF plant and destined drilling), revealed that the PF sample is most effective in decolorizing solutions containing this dye. Nevertheless, the solid TV, at low cost, can also be used as a support for the elimination of this dye. The study of thermal regeneration of the samples tested showed that in the area of initial dye concentrations less than or equal to 20 mg/L (range of concentrations generally encountered in industrial discharges), the retention capacity of regenerated materials TV-C and PF-C appear equal to that of the starting samples TV and PF, respectively. This suggests that the bentonite from the M'Zila deposit could constitute an interesting support for the elimination of basic (cationic) dyes