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landfill leachate collection raccolta e rimozione del percolato in discarica coleccion de lixiviados en rellenos Récolte et élimination du lixiviat dans une décharge Система сбора и отвода жидкости, образующейся в результате разложения отходов
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Landfill: Leachate Collection and Removal System (LCRS)


TENAX GNT geonet for leachate collection
TENAX GNT geonet for leachate collection
Sarasota County Landfill, Florida (USA):
TENAX GNT geonet for leachate collection
and removal System





The leachate collection and removal systems (LCRS) is commonly the only lateral drainage system provided in a MSW landfill and serves as the primary means for leachate collection and removal.
The LCRS systems are installed on top of the primary liner and therefore within the landfill core.

The leachate collection system must be capable of providing adequate flow capacity for the life of the landfill. Traditionally, natural materials, mainly gravel, have been used, but these materials take up a great deal of valuable airspace and need a heavy cushion layer to protect the underlying liner, in addition it can be very costly if quality gravel is not readily available and needs to be transported long distances.

TENAX TENDRAIN and TENAX GNT are high flow triplanar drainage geocomposites and geonets specifically engineered for leachate collection and removal system (LCRS).

TENAX TENDRAIN and TENAX GNT have three structural ribs, the top and bottom ribs keep the filter geotextile layer out of the central flow channel while the center structural ribs provide separation and create flow channels. Moreover, the significantly larger central ribs run parallel to the flow direction, resulting in tremendous hydraulic performance, especially for long term flow requirements under heavy compressive loads.

TENAX TENDRAIN assures a leachate collection and removal system which can withstand heavy compressive loads as well as maintain the flow capacity necessary to limit the head within the drainage layer.
In fact conventional geocomposites may experience a reduction in its drainage capacity due to compressive creep, caused by sustained normal load, and biological and chemical clogging caused by the leachate.

Bi-planar geocomposites, fall short of this goal due to lack of resistance to high compressive forces and excessive geotextile intrusion.
In addition, bi-planar geonets direct leachate flow at an angle, which requires the leachate to weave back and forth in order to follow the flow direction. This dissipates flow energy and may enhance clogging.










TENAX TENDRAIN geocomposite

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TENAX GNT geonet

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