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Received April 17, 2014
Accepted June 5, 2014
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Micellar Enhanced Ultrafiltration (MEUF) and Activated Carbon Fiber (ACF) Hybrid Processes for the Removal of Cadmium from an Aqueous Solution
Department of Environmental Engineering, Kumoh National Institute of Technology, 1 Yangho-dong, Gumi 730-701, Korea
dlee@kumoh.ac.kr
Korean Chemical Engineering Research, December 2014, 52(6), 775-780(6), 10.9713/kcer.2014.52.6.775 Epub 1 December 2014
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Abstract
Micellar enhanced ultrafiltration (MEUF) was used to remove cadmium from an aqueous solution using sodium dodecyl sulfate (SDS) as a surfactant. Operational parameters such as initial permeate flux, retentate pressure, initial cadmium concentration, pH solution, molecular weight cut-off (MWCO), and molar ratio of cadmium to SDS were investigated. Removal efficiency of cadmium from an aqueous solution increased with an increase of retentate pressure, pH solution and molar ratio of cadmium to SDS, and decreased with an increase of initial permeate flux._x000D_
Higher removal efficiency of cadmium from the aqueous solution was achieved using lower MWCO (smaller membrane pore size). Under optimized experimental condition, cadmium removal efficiency reached 74.6 % within an hour. Using MEUF-ACF hybrid process the removal efficiency of both cadmium and SDS was found to be over 90%.
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References
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Christian SD, Scamehorn JF, Ellington RT, Harwell JH (Eds.), Surfactant based separation processes, Marcel Dekker. New York, (chapter 1) (1989)
Scamehorn JF, Harwell JH, Wason DT, Ginn MF, Shah DO, Surfactants in chemical process engineering. Marcel Dekker, New York, (chapter 3) (1998)
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Li JW, Yu Z, Gao M, Cai Z, Water Air Soil Pollut., 97, 367 (1997)
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Ghosh G, Bhattacharya PK, Chem. Eng. J., 119(1), 45 (2006)
Gzara L, Dhahbi M, Desalination, 137(1-3), 241 (2001)
Bade R, Lee SH, Jo S, Lee HS, Lee SE, Desalination, 229(1-3), 264 (2008)
Baek K, Yang JW, Korean J. Chem. Eng., 21(5), 989 (2004)
Bade R, Lee SH, Korean J. Chem. Eng., 24(2), 239 (2007)
Channarong B, Lee SH, Bade R, Shipin OV, Desalination, 262(1-3), 221 (2010)
Qu YH, Zeng GM, Huang JH, Li M, Fang YY, Zhang Z, Ind. Water Wastewater(in China), 37(6), 12 (2006)
Beolchini F, Pagnanelli F, De Michelis I, Veglio F, J. Hazard. Mater., 148(1-2), 116 (2007)
