Adsorption Study of Dye Wastewater with Powdered Activated Carbon

Abstract

A study to determine the effectiveness of PAC on the removal of COD and colour from dye wastewater. Factors affecting treatment efficiency were investigated and included PAC particle sizes, initial dye concentration and contact time. The adsorption parameters for Langmuir, Freundlich and Dziubek′s isotherms were determined. Results indicated that a very short contact time of one hour was needed to reach equilibrium of adsorption. A COD (chemical oxygen demand) removal efficiency of 90 per cent for disperse‐red‐60 dye wastewater was obtained with PAC (powdered activated carbon). With PAC dosage of less than 15g/l the adsorption followed both Freundlich′s and Langmuir′s isotherms. The ultimate capacity of the adsorption increased with decreasing PAC particle sizes or the initial dye concentration. The mass transfer coefficient was determined in this study.

Citation

Yu‐Li Yeh, R., Lian‐Huey Liu, R., Chiu, H. and Hung, Y. (1993), "Adsorption Study of Dye Wastewater with Powdered Activated Carbon", Environmental Management and Health, Vol. 4 No. 3, pp. 11-19. https://doi.org/10.1108/09566169310043043