Adsorption Behavior Investigation of Malachite Green Dye onto Animal Bone Meal; Kinetic and Isotherm Studies

Removal of Malachite green from aquoeus media was achieved onto Animal bone meal as a new low cost adsorbent. The latter was characterized by Infra-Red and X-ray diffraction. The adsorption of Malachite green was occurred by studying the effects of adsorbent amount, dye concentration, contact time, pH media and temperature. The adsorption rate data were analyzed using the pseudo-first order and the pseudo-second order kinetics models to determine adsorption rate constants. Thermodynamic parameters were also evaluated for the dye-adsorbent system and revealed that the adsorption process is endothermic nature and spontaneous process under investigated temperatures. The results concluded that animal bone meal could be effectively employed as promising new low cost adsorbent for the removal textile dyes from aqueous solutions.