Open AccessFIXED-BED COLUMN ADSORPTION OF FLUOROQUINOLONE ANTIBIOTIC FROM AQUEOUS SOLUTION ONTO SUGARCANE BAGASSE BIOCHAR
Author(s) -
Linh T. Nguyen,
Thuy T. Pham,
Hanh Thi Hong Nguyen,
Hoai Thu Dang,
Kien T. Nguyen,
Son Ngo
Publication year - 2020
Publication title -
vietnam journal of science and technology/science and technology
Language(s) - English
Resource type - Journals
eISSN - 2815-5874
pISSN - 2525-2518
DOI - 10.15625/2525-2518/58/3a/14279
Subject(s) - bagasse , biochar , aqueous solution , fourier transform infrared spectroscopy , adsorption , volumetric flow rate , chemistry , scanning electron microscope , chromatography , materials science , packed bed , analytical chemistry (journal) , pulp and paper industry , composite material , chemical engineering , organic chemistry , thermodynamics , physics , pyrolysis , engineering
The ability of the agricultural residue of sugarcane bagasse to serve as an absorbent material used to remove Ciprofloxacin, 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 modelreached 0.955mg/g at the flow rate of 1mL/min, initial concentration of 15mg/L and bed height of 6cm. From Yoon-Nelson equation, 3.38 minutes was the time required for 50% exhaustion of 12cm bed height column with the flow rate 2mL/min and concentration 15mg/L. Thomas and Yoon-Nelson models were in good agreement with the experimental breakthrough curve data.