Author : Ghada Heikal

Dye is difficult to remove from aqueous solution due to its large molecular size. This study aims at describing the removal of methylene blue from aqueous solution using carbonized phragmites australis as an adsorbent. Batch experiments are carried out by observing the effect of pH (4-9), amount of adsorbents (0.25-1.5 gm/L), contact time (30-180 min) and initial concentration of dye (10-50 ppm) at agitation speed 120 rpm. The study results showed that the carbonized p australis achieve the highest removal of MB dye at optimum conditions of pH=7, adsorbent dose=1.0 gm/l, contact time=150 min and initial dye concentration 10 ppm had the removal efficiency of 97.1%. The study showed that the kinetic data obtained are obeying best to the pseudo-second-order kinetic model (R2=0.993) and adsorption isotherm study results indicated that MB dye adsorption followed Langmuir isotherm (R2=0.9906).

Keywords: Phragmites, Adsorption, Methylene blue, Dye removal

Article published in International Journal of Current Engineering and Technology, Vol.7, No.6 (Nov/Dec 2017)