Hydraulic and earth engineering – Fluid control – treatment – or containment
Patent
1995-02-16
1996-11-19
Lisehora, James A.
Hydraulic and earth engineering
Fluid control, treatment, or containment
210747, 405128, 166 50, 166 52, B09C 100
Patent
active
055755852
ABSTRACT:
The apparatus is a chamber within a ground excavation filled with porous material, with multiple angled well shafts projecting outward and down from the chamber. A pump located within the chamber pumps ground water from the several well shafts to a collector above ground, while a second pump in a sump adjacent to the chamber collects and removes contaminants which flow toward the sump because of the cone of depression formed by the several angled wells removing ground water. The angled well shafts located below the sealed chamber yield a much larger cone of depression than a single well, and use many fewer pumps than would multiple isolated vertical wells. Another advantage is that the system can operate without significant structures above ground, so that the apparatus is particularly well suited for decontaminating locations such as rail yards and other high traffic locations.
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patent: 5474685 (1995-12-01), Breslin
Fruitman Martin
Lisehora James A.
R. E. Wright Environmental, Inc.
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