Actions for Semianalytical solutions of radioactive or reactive transport invariably-fractured layered media [electronic resource] : 1. Solutes

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Semianalytical solutions of radioactive or reactive transport invariably-fractured layered media [electronic resource] : 1. Solutes

Published
Washington, D.C. : United States. Dept. of Energy, 2001.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators
United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
In this paper, semianalytical solutions are developed for the problem of transport of radioactive or reactive solute tracers through a layered system of heterogeneous fractured media with misaligned fractures. The tracer transport equations in the non-flowing matrix account for (a) diffusion, (b) surface diffusion, (c) mass transfer between the mobile and immobile water fractions, (d) linear kinetic or equilibrium physical, chemical, or combined solute sorption or colloid filtration, and (e) radioactive decay or first-order chemical reactions. The tracer-transport equations in the fractures account for the same processes, in addition to advection and hydrodynamic dispersion. Any number of radioactive decay daughter products (or products of a linear, first-order reaction chain) can be tracked. The solutions, which are analytical in the Laplace space, are numerically inverted to provide the solution in time and can accommodate any number of fractured and/or porous layers. The solutions are verified using analytical solutions for limiting cases of solute and colloid transport through fractured and porous media. The effect of important parameters on the transport of ³H, ²³⁷Np and ²³⁹Pu (and its daughters) is investigated in several test problems involving layered geological systems of varying complexity.
Report Numbers
E 1.99:lbnl--45871
lbnl--45871
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Note
Published through SciTech Connect.
10/10/2001.
"lbnl--45871"
": 820101000"
Water Resources Research 38 12 ISSN 0043-1397; WRERAQ FT
Moridis, George J.
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Funding Information
DE-AC02-05CH11231
80KH75
View MARC record | catkey: 14379804