Abstract:
The objective of this study is the removal of methylene blue auto commercial bentonite using adsorption processus. The influence of certain parameters such as contact time, adsorbent amount, pH of the medium, adsorbate initial concentration and temperature were studied. The results obtained show that the maximum adsorbed amount was around 99 mg/g. The experimental kinetic data are welled scribed by the pseudo-second order model and the adsorption isotherms are well described by the Langmuir model. The thermodynamic studies
showed that the adsorption processus is spontaneous, exothermic and physical
