Title :
Isothermal and Kinetic Studies on Dye Adsorption by Semen Euryales Shell Activated Carbon
Author :
Xiang, Li ; Haifu, Guo ; Zijun, Yan ; Huifen, Cao
Author_Institution :
Fac. of Chem. & Chem. Eng., Zhaoqing Univ., Zhaoqing, China
Abstract :
Adsorption equilibrium and kinetics of typical acidic and basic dyes, acid red 33 and basic violet 3, onto Semen Euryales Shell Activated Carbon (SESAC) were investigated under varying solution pHs and temperatures. Equilibrium data showed acidic pH was favourable for the adsorption of acid red 33 onto SESAC, while basic pH was favourable for basic violet 3. The adsorption capacity of dye increased with the decrease of temperature. The Freundlich isotherm provided the best correlation for the adsorption of acid red 33 and basic violet 3 onto SESAC. The kinetic experimental data were well fitted by the pseudo-second-order kinetic model. The adsorption process of acid red 33 and basic violet 3 onto SESAC involved chemical adsorption.
Keywords :
activated carbon; adsorption; dyes; water pollution control; Freundlich isotherm; acid red 33; acidic dye; acidic pH; adsorption equilibrium; basic violet 3; chemical adsorption; dye adsorption; dye pollution control; environmental water; pseudo-second-order kinetic model; semen euryales shell activated carbon; Carbon dioxide; Chemicals; Correlation; Degradation; Equations; Kinetic theory; Mathematical model; Acid red 33; Adsorption; Basic violet 3; Isotherms; Kinetics; SESAC;
Conference_Titel :
Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2011 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-61284-278-3
Electronic_ISBN :
978-0-7695-4350-5
DOI :
10.1109/CDCIEM.2011.358
