Landfill liner
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A landfill liner, or landfill membrane is a impermeable membrane which is layed down under engineered landfill sites. The membrane prevents toxic leachate permeating down into the underlying aquifers or nearby rivers causing spoiling of the local water.
Modern landfills generally require a minimum of one landfill liner, consisting of a layer of compacted clay with a minimum required thickness and a maximum allowable hydraulic conductivity. Others also require the addition of one or more layers of impermeable membrane, such as high-density polyethylene (HDPE) together with geotextile.
Waste tires or chipped tires are used as a supporting component insulating the liner.[1]
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[edit] References
- ^ Benson, C. H., Olson, M. A. & Bergstrom, W. R. (1996) Temperatures of Insulated Landfill Liner,p24-31
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