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In the last years, the adsorption processes were proven effective and easy to use techniques to clean polluted wastewater. The purpose of this research is to examine the biosorption method on organic indicators (Methylene Blue, Malachite Green, Congo Red and Bromphenol Blue) in aqueous medium by using chicken eggshell. The adsorption process was investigated in static circumstance. We examined the initial change of concentration (10-50 mg/l), the pH effect on the adsorption process, the equilibrium process, and the sorption kinetics. With scanning electron microscope, we examined the morphology and texture of the eggshell; furthermore, we conducted EDX microanalysis and ecotoxicological tests. Our results support the influence of the parameters on the sorption process.

Adsorptive Removal of Cationic and Anionic Dyes from Aqueous Solutions by Using Eggshell Household Waste as Biosorbent