Treatment of Touggourt Wastewater by Bildet Omar Clay

Abstract

Water for human consumption may contain pollutants, so it needs to be treated. A natural clay, Bildet Omar bentonite (southern Algeria), was purified and characterized by calcination, pH-metry, IR, XRD and SEM. The results obtained showed that the clay has a conductance of 66.4 μS, a cation exchange capacity (CEC) of 0.91 meq / g and contains 12% of organic matter. Characterizations by IR, XRD and SEM showed that Maghnia bentonite (B) is composed of quartz as major impurity, illite (7%) and mainly montmorillonite. This clay was saturated with sodium (Na +) and associated with iron (III), aluminum (III) and copper (II). The latter are inserted, by couple (Al-Cu, Fe-Cu and Fe-Al, 50-50% in atoms), in the inter-sheet space of the soda montmorillonite. The mass ratio metals / B is equal to 0.0625. The samples obtained are applied to fix the organic matter (MO) wastewater, very heavy, the city of Touggourt (southeastern Algeria). These organic materials represent 60% of suspended matter (MES). This work involves the study of urban wastewater treatment in the Touggourt town by natural processes. Water is used red and green clay from the region of Bildet Omar, it shows the importance of effective treatment of wastewater by clay. The results obtained show that:  The best clarification is achieved with the use of clay  Parallel treatment significantly reduces organic matter.  The use of yellow clay leads to a better elimination of turbidity and organic matter.