Etude de l’élimination d’un colorant cationique sur une argile provenant du gisement de M’Zila (Mostaganem)

Abstract

The used natural clay, which comes from M'Zila deposit Mostaganem, was purified by sedimentation. The lower fraction was 2 μm is sodium-exchanged, and then washed several times until chloride ions disappeared. The different physical and chemical analyzes showed that the clay phase is illite-smectite is dominant smectite interlayer containing kaolinite and its cation exchange capacity is about 72 meq / 100g. The study of the removal of a synthesis of dye: Methylene blue by sorption on the purified clay suggests that the tested clay could constitute interesting supports for the trapping of Methylene blue. Solutions containing from 0.05 to 0.3 mmole/l of Rhodamine B were successfully treated. The adsorption capacity of the clay is close to 75 meq/100 g.