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Title:
SYSTEM AND METHOD FOR CONTAINING LEACHATE USING SUBMERGED COUNTERFLOW SINK
Document Type and Number:
WIPO Patent Application WO1997045211
Kind Code:
A8
Abstract:
A method and system for collecting and containing leachate from a landifll uses a submerged drainage sink (2) to develop a flow pattern towards the drainage sink (2) contained within a containment zone, and therefore minimizes the chance of contaminating area groundwater. In a first embodiment of the invention for use in a substantially flat area, a perimeter barrier wall (1) is provided and extends downward into a bottom barrier layer, such as an aquitard (10), a clay layer, or a synthetic material. In another embodiment for use at a valley fill site, groundwater ridges (27), an upward flow pattern beneath the valley floor (40), and a barrier wall (1) crossing the valley floor (40) along the lowest edge of the landfill form a containment zone to contain a drainage sink comprising a blanket drain (12) and a plurality of trench drains (17, 43).

Inventors:
HWANG DAEKYOO (KR)
Application Number:
US9709389W
Publication Date:
April 01, 1999
Filing Date:
May 29, 1997
Export Citation:
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Assignee:
LG ENGINEERING CO., LTD.
HWANG, DAEKYOO
International Classes:
B09B1/00; E02D31/00; E02D3/10; (IPC1-7): B09B1/00
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