Treatment of the uncontrolled landfill of Casablanca city by naturals materials

This work treats the leachate from the uncontrolled landfill of Casablanca city using the infiltration-percolation technique. To do this, we carried out a comparative study of the filtrations on different matrices to choose the best filtering medium. We used silt, fly ash, bottom ash, agricultural soil and sea sands from the Casablanca coast. The parameters studied are: Chemical Oxygen Demand (COD), pH and heavy metals. The results obtained from adsorption technique show that these matrices used can be an effective adsorbent for the reduction of physicochemical parameters and the elimination of heavy metals. A revaluation of the filtering sludge made in the field of pottery. The results observed are satisfactory at all levels, whether in the reuse of this liquid waste, in the field of irrigation or the recycling of filter matrices.