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Keywords:

  • – analytical solutions;
  • clay liners;
  • computer programs;
  • contaminant migration;
  • landfills

Transit time analysis is used to estimate the thickness of a compacted clay liner of a landfill. A computer program has been developed based on an existing analytical solution for one-dimensional transient solute transport in saturated porous media. The formulation includes advective and dispersive transport in the clay as well as geochemical reactions. The computer program is relatively simple and can be used for the preliminary estimation of the thickness of a compacted clay liner.