Abstract
Batch sorption experiments with237Np using kaolinite and molasse clays were carried out under oxic conditions. The sorption kinetics and the effects of particle size of clay samples, concentration of neptunium in the solutions and the pH below and above the point of zero charge of the clays on the sorption coefficients were studied. The sorption coefficients of neptunium, on kaolinite were between 23 and 1100 ml/g at pH 1.5 and 7.6, respectively, whereas, sorption on the molasse clay was not affected significantly by pH (Rd∼600 ml/g).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
S. AHRLAND, J. O. LILJENZIN, J. RYDBERG, Solution Chemistry, Vol. 5, Actinides, J. C. Bailer, New York, 1973.
B. ALLARD, H. KIPATSI, J. RYDBERG, KBS Technical Report, 55 (1977).
G. BIDOGLIO, A. DE PLANO, Nucl. Technol., 74 (1986) 307.
B. TORSTENFELT, Radiochim. Acta, 39 (1986) 105.
B. A. WILLS, Mineral Processing Technology, Pergamon Press, 1979.
S. AKSOYOGLU, J. Radioanal. Nucl. Chem. 134 (1989) 393.
P. A. BERTRAND, G. R. CHOPPIN, Radiochim. Acta, 31 (1982) 135.
D. L. PARKHURST, D. C. THORSTENSON, L. N. PLUMMER, NTIS Techn. Report PB 81-167801, 1980.
G. A. PARKS, Chem. Rev., 65 (1965) 177.
J. O. LECKIE, R. O. JAMES, Aqueous Environmental Chemistry of Metals, A. J. RUBIN (Ed.), Ann Arbor Science Publishers, Ann Arbor, Mich., 1974, p. 1.
R. O. JAMES, M. G. MacNAUGHTON, Geochim. Cosmochim. Acta, 41 (1977) 1549.
H. FREUNDLICH, Colloid and Capillary Chemistry, Methuen, London, 1926.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Aksoyoglu, S., Burkart, W. & Goerlich, W. Sorption of neptunium on clays. Journal of Radioanalytical and Nuclear Chemistry, Articles 149, 119–122 (1991). https://doi.org/10.1007/BF02053719
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02053719