Geosynthetic barrier to prevent wildlife access to contaminated

Details Geosynthetic barrier to prevent wildlife access to contaminated Geosynthetic barrier to prevent wildlife access to contaminated

1994-05-17

1997-02-11

Edwards, N.

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Scrim

428 85, 428 87, 428131, 428137, 405258, 405128, 405107, 442 2, 442 35, 442 50, 442 57, B32B 900

Patent

active

056019068

ABSTRACT:
A geosynthetic barrier adapted to deny wildlife access to contaminated seents (CS), includes a geocomposite (10) formed of a top layer (14) juxtaposed on a bottom layer (12) which is adapted to be placed on the sediments. The top layer includes a geosynthetic drainage matrix having a plurality of openings, and the bottom layer includes a geotextile having a plurality of openings (12H) formed so as to allow gases to escape from the contaminated sediments on which said geocomposite is placed. The openings in the bottom layer of the geosynthetic barrier have a size in the range up to 200 cm and are spaced apart on centers having a range of between 6 cm to 600 cm, for example. The geosynthetic drainage matrix may be a geonet, a geogrid or a geomesh, fabricated from polyethylene, polypropylene, high density polyethylene, low density polyethylene, polystyrene, or high impact polystyrene. The top and bottom layers may be either separate layers, or may be joined together to produce a unified geocomposite web; may be held in place by a gravel layer (G) or other means; may be used in a subaqueous (W) or a non-subaqueous environment; and may provide a suitable environment through which vegetation (V) can be rooted.

REFERENCES:
patent: 4842448 (1989-06-01), Koerner et al.
patent: 5102260 (1992-04-01), Horvath et al.
patent: 5143480 (1992-09-01), Scuero
patent: 5277520 (1994-01-01), Travis
patent: 5401552 (1995-03-01), Bohrer et al.

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