Fixed-bed column analysis for adsorption of Acid scarlet 3R dye from aqueous solution onto chemically modified betel nut husk fibre
Amit Kumar Dey, Abhijit Dey, Rumi Goswami, Abhijit Dey, Rumi Goswami
Abstract
ABSTRACT In this study Na 2 CO 3 modified betel nut husk fibre was used as an adsorbent for the removal of Acid scarlet 3R (AS 3R) dye by analysing fixed-bed column. Experiments were carried out to obtain the effect of initial concentration of dyes or influent concentration, the depth of bed and the effect of the rate of flow of influent solution with influent concentration of 55, 150, and 250 mg/L, the depth of bed of 12, 22, and 32 cm and rate of flow of 15 and 25 mL/min respectively. The time of exhaustion corresponding to C / C 0 = 0.85 and the time of breakthrough corresponding to C / C 0 = 0.15 is given by the breakthrough curve. The studies were conducted at the room temperature of 27°C ± 2°C and the influent of pH were adjusted at 7.0 ± 0.2. Cost analysis for removal reveal that modified betel nut husk fibre has effectively employed for the removal of AS 3R dyes using fixed-bed column analysis.