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Soil Science Society of America Journal Abstract -

Dispersion in Soil Columns: Effect of Boundary Conditions and Irreversible Reactions1


This article in SSSAJ

  1. Vol. 42 No. 1, p. 15-18
    Received: Mar 3, 1977
    Accepted: Sept 12, 1977

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  1. J.-Y. Parlange and
  2. J. L. Starr2



A closed form approximate analytical solution is provided which describes the transport of a solute in a soil column. The effects of convection, dispersion, and adsorption are included. The latter can include both linear adsorption and first- or zero-order reactions. The effect of the finite length of a soil column on the miscible displacement of the solute is discussed in detail. It is shown in particular that the standard solution used in the past is accurate to describe the breakthrough curve but not the profile within the column.

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