Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received May 8, 2008
Accepted January 25, 2009
-
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
Electrochemical recovery of silver from waste aqueous Ag(I)/Ag(II) redox mediator solution used in mediated electro oxidation process
Department of Chemical Engineering, Sunchon National University, Sunchon 540-742, Korea
ismoon@sunchon.ac.kr
Korean Journal of Chemical Engineering, July 2009, 26(4), 1053-1057(5), 10.1007/s11814-009-0175-x
Download PDF
Abstract
The paper presents a process for the electrochemical recovery of silver(Ag) by electro deposition on the electrode surface from the waste solutions of Ag(I)/Ag(II) redox system in nitric acid medium used for the mediated electrochemical process. Electrochemical recovery was carried out in an undivided cell with DSA-O2 electrodes at room temperature condition. At an optimized current density of 12 A/dm2, 99% of Ag recovery efficiency was achieved with high yield and low energy consumption. Experimental runs were made in order to observe the performance of the Ag recovery process. The operating conditions like current density, temperature and Ag(I) concentration of the electrolyte, the acid concentrations, agitation rate and inter-electrode distance were optimized.
References
Cruz VR, Oropeza MT, Gonzalez I, Ponce-De-Leon C, J. Appl. Electrochem., 32(5), 473 (2002)
Fourcade F, Tzedakis T, Bergel A, Chem. Eng. Sci., 58(15), 3507 (2003)
Chen JP, Lim LL, Chemosphere, 60, 1384 (2005)
Pethkar AV, Paknikar KM, Process Biochem., 38, 855 (2003)
Lasko CL, Hurst MP, Environ. Sci. Technol., 33, 3622 (1999)
Hradil EF, Headil G, Met. Finish, 82, 85 (1984)
Raub E, Muller K, Fundamental of metal deposition, Elsevier Publishing Company, New York (1967)
Lopez FA, Martin MI, Perez C, Lopez Delgado A, Water Res., 37, 3883 (2003)
Donmez B, Sevim F, Colak S, Chem. Eng. Technol., 24(1), 91 (2001)
Hor YP, Mohamed N, J. Appl. Electrochem., 33(3-4), 279 (2003)
Lee MS, Ahn JG, Ahn JW, Hydrometallurgy, 70, 23 (2003)
Dib A, Makhloufi L, Chem. Eng. Process., 43(10), 1265 (2004)
Mubarak AA, El-Shazly AH, Konsowa AH, Desalination, 167(1-3), 127 (2004)
Choi JY, Kim DS, J. Hazard. Mater., 99(2), 147 (2003)
Boyanov BB, Konareva VV, Kolev NK, Hydrometallurgy, 73, 163 (2004)
Nasi J, Hydrometallurgy, 73, 123 (2004)
Tricoli, Vattistas N, Marconi PF, J. Appl. Electrochem., 23, 390 (1993)
Fleischmann M, Pletcher D, Rafinski A, J. Appl. Electrochem., 1, 1 (1971)
Sulka GD, Jaskula M, Electrochim. Acta, 51(27), 6111 (2006)
Lehmani A, Turq P, Simonin JP, J. Electrochem. Soc., 143(6), 1860 (1996)
Balaji S, Chung SJ, Matheswaran M, Moon IS, Korean J. Chem. Eng., 24(6), 1009 (2007)
Balaji S, Chung SJ, Thiruvenkatachari R, Moon IS, Chem. Eng. J., 126(1), 51 (2007)
Balaji S, Kokovkin VV, Chung SJ, Moon IS, Water Res., 41, 1423 (2007)
Chung SJ, Balaji S, Matheswaran M, Ramesh T, Moon IS, Water Sci. Technol., 55, 261 (2007)
Kokovkin VV, Chung SJ, Balaji S, Matheswaran M, Moon IS, Korean J. Chem. Eng., 24(5), 749 (2007)
Lee JW, Chung SJ, Balaji S, Kokovkin VV, Moon IS, Chemosphere, 68, 1067 (2007)
Matheswaran M, Balaji S, Chung SJ, Moon IS, J. Ind. Eng. Chem., 13(2), 231 (2007)
Matheswaran M, Balaji S, Chung SJ, Moon IS, Electrochim. Acta, 53(4), 1897 (2007)
Matheswaran M, Balaji S, Chung SJ, Moon IS, Chem. Eng. J., 144, 28 (2008)
Matheswaran M, Chung SJ, Moon IS, Korean J. Chem. Eng., 25(5), 1031 (2008)
Jeffery GH, VOGEL, Textbook of quantitative chemical analysis 5th ed., Longman Scientific & Technical, London (1989)
Fourcade F, Tzedakis T, Bergel A, Chem. Eng. Sci., 58(15), 3507 (2003)
Chen JP, Lim LL, Chemosphere, 60, 1384 (2005)
Pethkar AV, Paknikar KM, Process Biochem., 38, 855 (2003)
Lasko CL, Hurst MP, Environ. Sci. Technol., 33, 3622 (1999)
Hradil EF, Headil G, Met. Finish, 82, 85 (1984)
Raub E, Muller K, Fundamental of metal deposition, Elsevier Publishing Company, New York (1967)
Lopez FA, Martin MI, Perez C, Lopez Delgado A, Water Res., 37, 3883 (2003)
Donmez B, Sevim F, Colak S, Chem. Eng. Technol., 24(1), 91 (2001)
Hor YP, Mohamed N, J. Appl. Electrochem., 33(3-4), 279 (2003)
Lee MS, Ahn JG, Ahn JW, Hydrometallurgy, 70, 23 (2003)
Dib A, Makhloufi L, Chem. Eng. Process., 43(10), 1265 (2004)
Mubarak AA, El-Shazly AH, Konsowa AH, Desalination, 167(1-3), 127 (2004)
Choi JY, Kim DS, J. Hazard. Mater., 99(2), 147 (2003)
Boyanov BB, Konareva VV, Kolev NK, Hydrometallurgy, 73, 163 (2004)
Nasi J, Hydrometallurgy, 73, 123 (2004)
Tricoli, Vattistas N, Marconi PF, J. Appl. Electrochem., 23, 390 (1993)
Fleischmann M, Pletcher D, Rafinski A, J. Appl. Electrochem., 1, 1 (1971)
Sulka GD, Jaskula M, Electrochim. Acta, 51(27), 6111 (2006)
Lehmani A, Turq P, Simonin JP, J. Electrochem. Soc., 143(6), 1860 (1996)
Balaji S, Chung SJ, Matheswaran M, Moon IS, Korean J. Chem. Eng., 24(6), 1009 (2007)
Balaji S, Chung SJ, Thiruvenkatachari R, Moon IS, Chem. Eng. J., 126(1), 51 (2007)
Balaji S, Kokovkin VV, Chung SJ, Moon IS, Water Res., 41, 1423 (2007)
Chung SJ, Balaji S, Matheswaran M, Ramesh T, Moon IS, Water Sci. Technol., 55, 261 (2007)
Kokovkin VV, Chung SJ, Balaji S, Matheswaran M, Moon IS, Korean J. Chem. Eng., 24(5), 749 (2007)
Lee JW, Chung SJ, Balaji S, Kokovkin VV, Moon IS, Chemosphere, 68, 1067 (2007)
Matheswaran M, Balaji S, Chung SJ, Moon IS, J. Ind. Eng. Chem., 13(2), 231 (2007)
Matheswaran M, Balaji S, Chung SJ, Moon IS, Electrochim. Acta, 53(4), 1897 (2007)
Matheswaran M, Balaji S, Chung SJ, Moon IS, Chem. Eng. J., 144, 28 (2008)
Matheswaran M, Chung SJ, Moon IS, Korean J. Chem. Eng., 25(5), 1031 (2008)
Jeffery GH, VOGEL, Textbook of quantitative chemical analysis 5th ed., Longman Scientific & Technical, London (1989)
