ISSN: 0256-1115 (print version) ISSN: 1975-7220 (electronic version)
Copyright © 2024 KICHE. All rights reserved

Articles & Issues

Language
English
Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
Publication history
Received August 4, 2007
Accepted April 30, 2008
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.

All issues

Performance of hollow fiber supported liquid membrane on the extraction of mercury(II) ions

Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Patumwun, Bangkok 10330, Thailand 1Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom 73000, Thailand 2Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Ladkrabang, Bangkok 10520, Thailand
ura.p@chula.ac.th
Korean Journal of Chemical Engineering, November 2008, 25(6), 1486-1494(9), 10.1007/s11814-008-0245-5
downloadDownload PDF

Abstract

The extraction and recovery or stripping of mercury ions from chloride media using microporous hydrophobic hollow fiber supported liquid membranes (HFSLM) has been studied. Tri-n-octylamine (TOA) dissolved in kerosene was used as an extractant. Sodium hydroxide was used as a stripping solution. The transport system was studied as a function of several variables: the concentration of hydrochloric acid in the feed solution, the concentration of TOA in the liquid membrane, the concentration of sodium hydroxide in the stripping solution, the concentration of mercury ions in the feed solution and the flow rates of both feed and stripping solutions. The results indicated that the maximum percentages of the extraction and recovery of mercury ions of 100% and 97% were achieved at the concentration of hydrochloric acid in the feed solution of 0.1 mol/l, the concentration of TOA at 3% v/v, the concentration of sodium hydroxide at 0.5 mol/l and the flow rates of the feed and stripping solutions of 100 ml/min. However, the concentration_x000D_ of mercury ions from 1-100 ppm in the feed solution had no effect on the percentages of extraction and recovery of mercury ions. Thus, these results have identified that the hollow fiber supported liquid membrane process has high efficiency on both the extraction and recovery of mercury (II) ions. Moreover, the mass transfer coefficients of the aqueous phase (ki) and membrane or organic phase (km) were calculated. The mass transfer coefficients of the aqueous phase and organic phase are 0.42 and 1.67 cm/s, respectively. The mass transfer coefficient of the organic phase is higher than that of the aqueous phase. Therefore, the mass transfer controlling step is the diffusion of the mercury ions through the film layer between the feed solution and the liquid membrane.

References

Chester Rail D, Groundwater contamination, volume I: Contamination, sources, & hydrology, Lancaster, Pennsylvania: Technomic Publishing Company, Inc. (2000)
Schultz G, Separation Techniques with Supported Liquid Membrane, 68, 191 (1998)
Hano T, Matsumoto M, Uenoyama S, Ohtake T, Kawano Y, Miura S, Separation of Lactic Acid from Fermented Broth by Solvent Extraction, 3, 321 (1993)
Basu R, Sirkar KK, AIChE J., 37, 383 (1991)
Basu R, Prasad R, Sirkar KK, AIChE J., 36, 450 (1998)
Yun C, Prasad R, Sirkar K, Ind. Eng. Chem. Res., 31, 1709 (1992)
Prasad R, Sirkar KK, J. Membr. Sci., 47, 235 (1989)
Basu R, Sirkar KK, J. Membr. Sci., 75, 131 (1992)
Rathore NS, Sonawane JV, Kumar A, Venugopalan AK, Singh RK, Bajpai DD, Shukla JP, J. Membr. Sci., 189(1), 119 (2001)
Campderros ME, Marches J, J. Membr. Sci., 164(1-2), 195 (2000)
Gherrou A, Kerdjoudj H, Desalination, 144(1-3), 231 (2002)
Porter Mark C, Handbook of industrial technology membrane, Noyes publications (1990)
Kiani A, Bhave PR, Sirkar KK, J. Membr. Sci., 20, 231 (1984)
Dahuron L, Cussler EL, AIChE J., 34, 130 (1988)
Weerawat P, Nattaphol V, Ura P, Korean J. Chem. Eng., 20(6), 1092 (2003)
Ura P, Prakorn R, Weerawat P, J. Ind. Eng. Chem., 11(6), 926 (2005)
Prakorn R, Weerawat P, Ura P, Korean J. Chem. Eng., 23(1), 85 (2006)
Ramakul P, Pattaweekongka W, Pancharoen U, J. Chin. Inst. Chem. Engrs., 36, 1 (2005)
Prakorn R, Kwanta N, Ura P, Korean J. Chem. Eng., 21(6), 1212 (2004)
Prapasawat T, Ramakul P, Satayaprasert C, Pancharoen U, Lothongkum AW, Korean J. Chem. Eng., 25(1), 158 (2008)
Pancharoen U, Ramakul P, Patthaveekongka W, Hornec M, J. Ind. Eng. Chem., 15, 5 (2006)
Prakorn R, Ura P, Korean J. Chem. Eng., 20(4), 724 (2003)
Fu SS, Mastuyama H, Teramoto M, Sep. Purif. Technol., 36(1), 17 (2004)
Loiacono O, Drioli E, Molinari R, J. Membr. Sci., 28, 123 (1986)
Danesi P, J. Membr. Sci., 20, 231 (1984)
Kumar A, Haddad R, Benzal G, Ninou R, Sastre AM, J. Membr. Sci., 174(1), 1 (2000)
Bird RB, Stewart WE, Lightfoot EN, Transport phenomena, John Wiley & Sons, New York (1960)
Hoechst Celanese Corporation, Operating manual, Laboratory Liquid/Liquid Extraction System, 22 (1995)
Cussler EL, Diffusion mass transfer in fluid systems, Cambridge University Press, USA (1997)
Bird RB, Stewart WE, Lightfoot EN, Transport phenomena, 2nd Ed., John Wiley & Sons, Inc., New York, 529 (2002)
John CK, Keith FP, Chemistry & chemical reactivity, 2nd Ed., Saunders College Publishing, the United States of America, 569 (1991)
Rovira M, Sastre AM, J. Membr. Sci., 149(2), 241 (1998)

The Korean Institute of Chemical Engineers. F5, 119, Anam-ro, Seongbuk-gu, 233 Spring Street Seoul 02856, South Korea.
Phone No. +82-2-458-3078FAX No. +82-507-804-0669E-mail : kiche@kiche.or.kr

Copyright (C) KICHE.all rights reserved.

- Korean Journal of Chemical Engineering 상단으로