Subsurface contaminant solute transport in a homogeneous, isotropic, and saturated geologic porous medium is often described in an advection-dispersion equation. Ogata has developed an analytical solution to the equation, assuming the domain of space is extended from zero to infinity. Because the length of columns in laboratory studies is always finite, this paper presents criteria for applicability of the Ogata solution in analyzing laboratory data obtained from column experiments. The velocity of the 50 percent concentration point of the concentration profile is often erroneously taken as the retarded advective velocity of the contaminant solute to determine the retardation factor and distribution coefficient of the contaminant between the solid and liquid phases. Necessary corrections are recommended after careful examination of the error, based on various boundary conditions of the experiments. Specific procedures for different applications of the new correction charts are outlined in this paper.


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Media Info

  • Features: Appendices; Figures; References;
  • Pagination: p. 111-118
  • Serial:

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Filing Info

  • Accession Number: 00675493
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 6 1995 12:00AM