Hydraulic and earth engineering – Subterranean waste disposal – containment – or treatment – With treatment of waste
Patent
1990-09-10
1992-03-03
Reese, Randolph A.
Hydraulic and earth engineering
Subterranean waste disposal, containment, or treatment
With treatment of waste
405 38, 405 43, B09B 100
Patent
active
050927094
ABSTRACT:
A landfill site is adapted to collect leachate seeping from landfill. A liner impedes passage of liquids between the landfill and a subjacent stratum. A leachate collection layer formed of drainage material is located between the liner and the landfill. Apertured conduits embedded within the drainage material convey the leachate to a pair of subsurface gallery extending along opposite sides of the site and accessible from the surface. Each collection conduit has a discharge end extending through the gallery sidewall where leachate flows can be inspected and obstructions in the conduit can be removed. A groundwater gallery is constructed below the liner in the subjacent stratum and is also accessible from the surface. Blind-ended slots in the upper surface of the stratum are filled with drainage material. Apertured groundwater collection conduits in the slots convey groundwater into the interior of the gallery. The floor of the site is saddle-shaped to encourage leachate and groundwater flows towards the galleries and flows within the galleries to low-points where sumps are located.
REFERENCES:
patent: 3849991 (1974-01-01), Niederwemmer
patent: 3919848 (1975-01-01), Sullivan
patent: 4023506 (1977-05-01), Robey
patent: 4345581 (1982-08-01), Shacher
patent: 4388357 (1983-06-01), Luebke
patent: 4430021 (1984-02-01), Wagner et al.
patent: 4697954 (1987-10-01), Grund
patent: 4753551 (1988-06-01), Brueggemann et al.
patent: 4846604 (1989-07-01), Holtmann
patent: 4973196 (1990-11-01), Fuhr et al.
"Municipal Landfills Using Double Liners", Waste Age. Oct. 1985, p. 61.
Reese Randolph A.
Ricci John A.
Steetley Quarry Products Ltd.
Waraksa Mirek A.
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