||Leachate Collection in Landfills: Steady Case.
McEnroe, B. M. ;
Schroeder, P. R. ;
||Army Engineer Waterways Experiment Station, Vicksburg, MS. ;Kansas Univ., Lawrence. Dept. of Civil Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Earth fills ;
Subsurface drainage ;
Ground water ;
Mathematical models ;
Hydraulic conductivity ;
Environmental transport ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||The paper analyzes the performance of landfill leachate collection systems with low-permeability soil liners under steady-state conditions. Algebraic equations and graphs are presented for predicting the average and maximum saturated depth on the liner, the location of the maximum saturated depth, and the leakage rate. The equations and graphs are developed from numerical solutions of the governing differential equation. Some surprisingly simple relationships are shown to be applicable over much of the practical range. In general, saturated depth over the liner is sensitive to four parameters: the liner slope, the drainage length or drain spacing, the saturated hydraulic conductivity of the drain layer, and the difference between the impingement rate on the liner and the liner's hydraulic conductivity. Under normal conditions, leakage rate is sensitive only to the hydraulic conductivity of the liner. Within the practical range, liner thickness has little effect on either saturated depth or leakage rate.
||Pub. in Jnl. of Environmental Engineering, v114 n5 p1052-1062 Oct 88. Prepared in cooperation with Kansas Univ., Lawrence. Dept. of Civil Engineering. Sponsored by Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
|NTIS Title Notes
||Reprint: Leachate Collection in Landfills: Steady Case.
||PC A02/MF A01