Evaluation et caractérisation des deux biosorbants préparés à partir des Peels de pastèque

Abstract

The aim of this work is to study the possibility of using melon husks, in the removal of Rhodamine B in water solutions.The results of infrared analysis showed the presence of several chemical bonds on the surface. The value of the pHzcp, then the assignment is experimental and 5.64 and the results showed that the suction pump has an amphitheater. Effect of changes in pH, primary concentration of colored material, and quantity of substance (ratio x / y), on the ability of adsorption and then experimentally proven The increase in the amount of watermelon husks between 1 and 20 g / l negatively affects the adsorption capacity from 24.87 to 1.05 mg / g at equilibrium. The removal of the pollutant was observed to have the same effect in the acidic and basal medium, Langmuir, Freundlich, Takin, and BET were used to achieve equilibrium data. The Langmir model was found to be more suitable for experimental data. It was also observed that melon husks showed a very high adsorption capacity for Rhodamine B, in weak and high concentrations. This study confirms that melon husks have great potential for adsorption, making them an effective way to remove basic dyes such as RB from aqueous solutions