Removal of heavy metals and COD containing leachate by ceramic membranes

B. Asli, A. Chougui, A. Belouatek, K. Zaiter


Abstract: This work focused on the development of new ceramic membranes, made with locally available kaolin mixed with aluminum oxide, and their application in the treatment of polluted liquid effluents. Qualitative analyzes were performed on different leachates from the landfill of Tiaret (west of Algeria). Cross flow filtration performed with modified ceramic membranes leads to complete rejection of some heavy metals as Pb along with nitrite and nitrate rejection rates higher than 96 %. Moreover, the chemical oxygen demand was found to decrease by more than 90 % with the two types of membranes developed in this work.

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