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Removal of Nickel and Cobalt from Aqueous Solutions by Na-Activated Bentonite

Published online by Cambridge University Press:  28 February 2024

Stella Triantafyllou ,
Eirini Christodoulou  and
Paraskevi Neou-Syngouna
Stella Triantafyllou
Affiliation:
National Technical University of Athens, Department of Mining and Metallurgical Engineering, Laboratory of Metallurgy, Heroon Polytechniou 9, 15780, Zografou, Greece
Eirini Christodoulou
Affiliation:
National Technical University of Athens, Department of Mining and Metallurgical Engineering, Laboratory of Metallurgy, Heroon Polytechniou 9, 15780, Zografou, Greece
Paraskevi Neou-Syngouna
Affiliation:
National Technical University of Athens, Department of Mining and Metallurgical Engineering, Laboratory of Metallurgy, Heroon Polytechniou 9, 15780, Zografou, Greece
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Abstract

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The ability of Na-activated bentonite to remove Ni2+ and Co2+ from aqueous solutions at room temperature (22 ± 1°C) was studied under various experimental conditions. The parameters studied were solid-to-liquid ratios and initial cation concentrations. Experiments involved the behavior of bentonite vs. Ni and Co separately and where Ni and Co were present in solution at different concentrations and ratios. Bentonite retained substantial amounts of both metals readily, but it showed a higher affinity for Ni. Over-exchange appears when initial metal concentration exceeds the concentration corresponding to the cation exchange capacity (CEC) of bentonite. The presence of both metals in solution may be either synergistic or antagonistic sorption, depending on the initial ion concentrations.

Keywords

AdsorptionBentoniteCation ExchangeClaysCobalt RemovalHeavy MetalsNickel RemovalWastewater
Type
Research Article
Information
Clays and Clay Minerals , Volume 47 , Issue 5 , October 1999 , pp. 567 - 572
Copyright
Copyright © 1999, The Clay Minerals Society

References

Adeleye, S.A. Rautiu, R. and White, D.A., 1995 Clay minerals as sorbents for nuclear reactor activation products Journal of Materials Science 30 583–586 10.1007/BF00356314.CrossRefGoogle Scholar
Baes, C.F. and Mesmer, R.E., 1976 The Hydrolysis of Cations New York Wiley-Interscience Publications, John Wiley & Sons 238–247.Google Scholar
Barrer, R.M. and Townsend, R.P., 1976 Transition metal ion exchange Part I Journal of the Chemical Society Faraday Transactions 72 661–673 10.1039/f19767200661.CrossRefGoogle Scholar
Brigatti, M.F. Corradini, F. Franchini, G.C. Pacchioni, M.G. and Poppi, L., 1994 Interaction of exchanged Zn2+-montmorillonite with alkaline and earth alkaline cations Applied Clay Science 9 121–128 10.1016/0169-1317(94)90031-0.CrossRefGoogle Scholar
Brigatti, M.F. Corradini, F. Franchini, G.C. Mazzoni, S. Medici, L. and Poppi, L., 1995 Interaction between Montmorillonite and pollutants from industrial wastewaters: Exchange of Zn2+ and Pb2+ from aqueous solutions Applied Clay Science 9 383–395 10.1016/0169-1317(94)00027-N.CrossRefGoogle Scholar
Gregg, S.J. and Sing, K.S.W., 1982 Adsorption, Surface Area and Porosity London Academic Press, Inc. 5–49.Google Scholar
Loizidou, M. and Townsend, R.P., 1987 Exchange of cadmium into the sodium and ammonium forms of the natural zeolites, clinoptinolite, mordenite and ferrierite Journal of the Chemical Society Dalton Transactions 1991–1996.CrossRefGoogle Scholar
Nightingale, E.R., 1959 Phenomenological theory of ion solvation. Effective radii of hydrated ions Journal of Chemical Physics 63 1381–1388 10.1021/j150579a011.CrossRefGoogle Scholar
Pradas, E.G. Sanchez, M.V. Cruz, F.C. Viciana, M.S. and Perez, M.E., 1994 Adsorption of cadmium and zinc from aqueous solution on natural and activated bentonite Journal of Chemical Technology and Biotechnology 59 289–295 10.1002/jctb.280590312.CrossRefGoogle Scholar
Puls, R.W. and Bohn, H.L., 1988 Sorption of cadmium, nickel and zinc by kaolinite and montmorillonite suspensions Soil Science Society of America Journal 52 1289–1292 10.2136/sssaj1988.03615995005200050013x.CrossRefGoogle Scholar
Rybicka, E.H. Calmano, W. and Breeger, A., 1995 Heavy metals sorption/desorption on competing clay minerals: An experimental study Applied Clay Science 9 369–381 10.1016/0169-1317(94)00030-T.CrossRefGoogle Scholar
Thomas, C.L. Hickley, J. and Stecker, G., 1950 Chemistry of clay cracking catalysts Industrial and Engineering Chemistry 42 866–871 10.1021/ie50485a033.CrossRefGoogle Scholar
Tiller, K.G. Gerth, J. and Brummer, G., 1984 The sorption of Cd, Zn and Ni by soil clay fractions: Procedures for partition of bound forms and their interpretation Geoderma 34 1–16 10.1016/0016-7061(84)90002-8.CrossRefGoogle Scholar
Tiller, K.G. Gerth, J. and Brummer, G., 1984 The relative affinities of Cd, Ni and Zn for different soil clay fractions and goethite Geoderma 34 17–35 10.1016/0016-7061(84)90003-X.CrossRefGoogle Scholar
van Olphen, H., 1977 An Introduction to Clay Colloid Chemistry 2nd edition New York John Wiley & Sons Inc. 258–259.Google Scholar
Verburg, K. and Baveye, P.h., 1994 Hysteresis in the binary exchange of cations on 2:1 clay minerals: A critical review Clays and Clay Minerals 42 207–220 10.1346/CCMN.1994.0420211.CrossRefGoogle Scholar
Viraraghavan, T. and Kapoor, A., 1994 Adsorption of mercury from wastewater by bentonite Applied Clay Science 9 31–49 10.1016/0169-1317(94)90013-2.CrossRefGoogle Scholar

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