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The ability of the agricultural residue of sugarcane bagasse to serve as an absorbent material used to remove Ciprofloxacin (CIP), one of strong Fluoroquinolone antibiotic from aqueous solutions in fixed-bed columns was investigated. The properties of biochar sugarcane bagasse were characterized using scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectroscopy before and after modification. The results of fixed bed column experiment showed that the shape of the removal efficiency of CIP and exhaustion time was dependent on bed height, flow rate and initial concentration. The maximum adsorption capacity qo predicted from Thomas model reached 0.955 mg/g at the flow rate of 1 mL/min, initial concentration of 15 mg/L and bed height of 6 cm. From Yoon-Nelson equation, 3.38 minutes was the time required for 50 % exhaustion of 12 cm bed height column with the flow rate 2 mL/min and concentration 15 mg/L. Thomas and Yoon-Nelson models were in good agreement with the experimental breakthrough curve data. | Fixed-bed column adsorption of Fluoroquinolone antibiotic from aqueous solution onto sugarcane bagasse biochar