In this study the removal medicinal waste (tetracycline antibiotic) from aqueous solutions was investigated usin adsorbent (TTY). The absorbent properties were investigated using Fourier Transform Infrared Spectroscopy (FT-IR), X-ray diffraction analysis (XRD), scanning electron microscopy (FE-SEM), Energy-dispersive X-ray spectroscopy (EDX), BET and TGA method. Different affecting factors such as pH, initial concentrations of drug, temperature, contact time were optimized. Finally, the possibility of recovery of the absorbent was investigated. The optimum results for tetracycline were obtained using 0.01 g of adsorbent, pH=10, temperature 25 °C and contact time of 5 minutes. According to obtained data, the Freundlich isotherm adsorption were matched for tetracycline antibiotic. Maximum adsorption capacites were found to be 29.8 mg/g for tetracycline antibiotic. The kinetics of adsorption of tetracycline antibiotic were evaluated. The data obtained for tetracycline were matched with the first-order kinetic model. After three times recovery of the absorbent using ethanol the adsorbent keep 67% of initial capacity. The (TTY) adsorbent was successfully applied for removal of tetracycline antibiotic from industrial waste.
