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Convective Diffusion in Clay Systems¹

ABSTRACT

The theory of convective diffusion has been applied to transport of salt through clay columns. An expression was derived for salt distribution within the column for steady state conditions.

Data from the literature were used to test the applicability of the distribution function to clay systems. The observed nonlinearity is described to high precision by the equation. However, some discrepancy occurs between calculated and measured parameters.

¹ Contribution from the Department of Agronomy, University of Illinois, Urbana. The work upon which this publication is based was supported by the United States Department of Interior as authorized under the Water Resources Act of 1964, Public Law 88-379.

² Research Associate, University of Illinois, Urbana.

Received for publication February 6, 1968. Accepted for publication May 2, 1968.