Abstract
The uranium sorption from aqueous solutions (concentration range 50–20.000 mg/l) by the sodium-form (Na-form) of HEU-type zeolite crystals (particle-size <20 μm) has been investigated by means of a batch-type method. The INAA, RI-XRF, powder-XRF, SEM-EDS and FT-IR techniques were used for the study of the experimental products. The absolute uranium uptake by the material reached the value of 11.68 mg/g in the case of initial concentraton 20,000 mg/l. On the other hand theK d -values indicated that the relative uranium uptake, and consequently the percentage of removal, is higher for concentrations below 100 mg/l. The uranium uptake by the zeolite is attributed to different sorption processes such as ion-exchange, adsorption and surface precipitation, taking place both to the interior and the surface of the crystals and strongly depending on the pH of the solutions. The investigated zeolitic material was sufficiently resistant at the low initial pH of the solutions with dealumination phaenomena only observed in the case of the most acidic solution used.
Similar content being viewed by others
References
M. Eisenbud,Environmental Radioactivity from Natural, Industrial and Military Sources, Academic Press, San Diego, 1987.
A. Martinez-Aguirre, M. Garcia-Leon,J. Radioanal. Nucl. Chem. Letters,155(2) (1991) 97.
D. Todorovsky, I. Kulev,J. Radioanal. Nucl. Chem. Letters. 176(5) (1993) 405.
K.W. Thomas,Summary of Sorption Measurements Performed with Yucca Mountain, Nevada, Tuff Samples and Water from Well J-13, Los Alamos Nat. Lab. Report, LA-10960-MS, New Mexico, 1987.
D.T Vaniman, D.L. Bish, in:Program and Abstracts of Zeolite '93 (4th Int. Conf. on the Occurrence, Properties and Utilization of Natural Zeolites), Boise/Idaho-USA, 1993, p. 209.
N.R. Andreeva, N.B. Chernyavskaya,Radiokhimiya,24(1) (1982) 9.
L.L. Ames, J.E. Mc Garrah, B.A. Walker,Clays & Clay Mineral.,31(5) (1983) 321.
M.T. Olguin, M. Solache-Rios, M. Asomoza, P. Bosch, S. Bulbulian, in:Extended Abstracts and Program of the 9th International Zeolite Conference, Montreal-Canada, J.B. Higgins, R. von Ballmoos, M.M.J. Treacy, (Eds.), Butterworth-Heinemann, 1992, RP19.
P. Misaelides, A. Godelitsas, A. Filippidis, D. Charistos, I. Anousis,Sci. Total Environ., (1995, in press).
M.B. Hafez, A.F. Nazmy, F. Salem, M. Eldesoki,J. Radioanal. Chem. 47 (1978) 115.
R.F.C. Vochten, L. van Haverbeke, F. Goovaerts,J. Chem. Soc. Faraday Trans.,86(24) (1992) 4095.
W.M. Meier, D.H. Olson,Atlas of Zeolite Structure Types, 3rd revised Ed., Butterworth-Heinemann, London, 1992.
P. Misaelides, A. Godelitsas, D. Haristos, F. Noli, A. Filippidis, C. Sikalidis,Geologica Carpathica-Ser. CLAYS, 44(2) (1993) 115.
M.E. Gunter, T. Armbruster, T. Kohler, C.R. Knowles,Am. Mineral., 79 (1994) 675.
A. Godelitsas, P. Misaelides, D. Charistos, E. Pavlidou, in:Application of Particle and Laser Beams in Materials Technology, P. Misaelides (Ed.), Kluwer Academic Publishers, Dordrecht, 1995, p. 493.
S.B. Savvin,Talanta,11 (1964) 1.
F.G. Flanagan,Geochim. Cosmochim. Acta,37 (1973) 1189.
E. Flanigen, in:Zeolite Chemistry and Catalysis, J.A. Rabo, (Ed.), A.C.S. Monograph 171, 1976, p. 80.
C.F. Baes Jr., R.E. Mesmer,The Hydrolysis of Cations, R.E. Krieger Pub. Co. Inc., Malabar, 1986.
D.J. Vaughan, R.A.D. Pattrick, (Eds.),Mineral Surfaces, Min. Soc Series Vol. 5, Chapman & Hall, London, 1995.
W. Stumm,Chemistry of the Solid-Water Interface/Processes at the Mineral-Water and Particle-Water Interface in Natural Systems, J. Wiley, New York, 1992.
J.A. Grindler,The Radiochemistry of Uranium, NAS-NS 3050, 1962.
R.N. Sylva, M.R. Davidson,J. Chem. Soc. Dalton, (1979) 465.
P. Wersin, M.F. Hochella Jr., P. Persson, G. Redden, J.O. Leckie, D.W. Harris,Geochim. Cosmochim. Acta,58(13) (1994) 2829.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Godelitsas, A., Misaelides, P., Filippidis, A. et al. Uranium sorption from aqueous solutions on sodium-form of HEU-type zeolite crystals. Journal of Radioanalytical and Nuclear Chemistry, Articles 208, 393–402 (1996). https://doi.org/10.1007/BF02040057
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02040057