This work aims first to characterize the Maastrichtian and Paleogene clays of Ouled Bou Sbaa phosphate deposit located in northern part Meskala Basin; as a second goal, most efficient clay fractions are tested identified for organic dyes removal. Several techniques methods have been adopted characterization clays: X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), fluoresc...