TRANSPORT OF LOW-CONCENTRATION CONTAMINANTS IN SATURATED EARTHEN BARRIERS

This paper presents design guidelines for fine-grained earthen barriers based upon the fundamental parameters affecting contiminant transport, to provide a methodology for estimating the time required for the contaminant to breakthrough, and to determine the thickness of the earthen barrier for a specified breakthrough contentration and design life. Low-concentration trichloroethylene, and organic contaminant that has the highest reported concentration in the drinking water wells in the United States is used to illustrate the use of the procedure. The limitations and restriction of the model in the prediction of the solute breakthrough are discussed. The fundamental parameter afecting the design are the seepage velocity, retardation factor, and chemical diffusion of the contaminant in the pore fluid. The steps in the procedure for determining the thicknes of the earthen barrier are listed.

• Availability:
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• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Acar, Y B
  • Haider, L
• Publication Date: 1990-7

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 1031-52
• Serial:
  • Journal of Geotechnical Engineering
  • Volume: 116
  • Issue Number: 7
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9410

Subject/Index Terms

• TRT Terms: Barriers (Roads); Contaminants; Design; Earth; Earth walls; Groundwater; Mathematical models; Seepage
• Uncontrolled Terms: Barriers; Models
• Subject Areas: Design; Geotechnology; Highways; Hydraulics and Hydrology; I42: Soil Mechanics;

Filing Info

• Accession Number: 00497574
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 30 1990 12:00AM