Actinides in the Environment by Arnold M. Friedman (Eds.)

By Arnold M. Friedman (Eds.)

content material: The function of actinide habit in waste administration / John W. Bartlett --
Moisture and solute shipping in porous media / Merlin L. Wheeler --
The migration of plutonium and americium within the lithosphere / S. Fried, A.M. Friedman, J.J. Hines, R.W. Atcher, L.A. Quarterman, and A. Volesky --
organic pathways and chemical habit of plutonium and different actinides within the surroundings / Roger C. Dahlman, Ernest A. Bondietti, and L. Dean Eyman --
software of the field version thought to the geophysical delivery of PuO₂ : geochemistry of Pu(NO₃)₄ / A.T. Jakubick --
Oklo, an scan in long term geologic garage / E.A. Bryant, G.A. Cowan, W.R. Daniels, and W.J. Maeck.

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As can be seen, at the slower velocity the peak i s much sharper. +4 of to in k, Surface Absorption Coefficients: Variation with Concentration Dissolved SaltsT This aspect of the Investigation attempted determine the effect of dissolved s a l t s , which may be present natural ground waters, on the surface absorption c o e f f i c i e n t , defined as: k = (activity/ml solution)/(activity/cm 2 stone) There were three sets of experiments. The f i r s t set consisted of measurements of the surface absorption coefficient of americium and plutonium on basalts and limestones.

Most of the available informa­ tion deals with marine environments in weapons testing areas and in areas associated with fuel reprocessing plants (13, 14, 15, 16). Reviews of the literature on plutonium in aquatic environments have been provided by Noshkin (16) and more recently by Schell and Watters (13). In general, results of research on Pu in aquatic environments indicate (a) most of the Pu in these environments i s associated with sediment, with distribution coefficients* (Kd) ranging from 10 * to 1 0 .

This was to compensate for the anticipated deeper pene­ tration of the plutonium. Simulated r a i n f a l l was intermittently applied between inter­ vals of drying and covered the entire upper surface of the t u f f . As before, the tuff was never saturated with water during any particular application of "rain". Since the sites were cored successively, those cored later naturally experienced more cycles of "rain" and "drought" and thus the migration of plutonium was measured as a function of the quantity of " r a i n f a l l " .

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