Title :
Adsorption Characteristics of Cu2+ onto Zeolite from Pharmaceutical Industrial Wastewater
Author :
Liu, Feng-hua ; Song, Yong-hui ; Zeng, Ing ; Peng, Jian-feng ; Xiao, Shu-hu ; Duan, Liang ; Qiu, Guang-lei ; Ye, Jie ; Song, Cun-yi
Author_Institution :
Chinese Res. Acad. of Environ. Sci., Beijing, China
Abstract :
The adsorption of Cu2+ from pharmaceutical wastewater by zeolite was studied in a batch adsorption system. Factors influencing copper adsorption such as pH (1-5), adsorbent dosage (5-50 g/L) and contact time (20-600 min) were investigated. The equilibrium of adsorption process was established in about 480 min, while pH was 5 and adsorbent dosage was 30 g/L. After the adsorption equilibrium was achieved, the removal efficiency of Cu2+ was above 99%. A comparison of the kinetic models on the overall adsorption rate showed that the adsorption system was best described by the pseudo second-order kinetics. The adsorption equilibrium data fit best with the Langmuir isotherm.
Keywords :
adsorption; copper; pH; pharmaceutical industry; wastewater treatment; zeolites; Cu; Langmuir isotherm; adsorbent dosage; batch adsorption system; contact time; copper adsorption; pH; pharmaceutical industrial wastewater; pseudo second-order kinetics; time 20 min to 600 min; zeolite; Computers; Decision support systems; Distributed control; Mercury (metals); Monitoring; adsorption; isotherm; kinetics; wastewater contained copper; zeolite;
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.2011.17
