Hydraulic and earth engineering – Fluid control – treatment – or containment
Patent
1997-01-03
2000-09-12
Graysay, Tamara L.
Hydraulic and earth engineering
Fluid control, treatment, or containment
405128, 588249, 210747, 210170, E02B 1300, A62D 300
Patent
active
061168157
ABSTRACT:
A system for preventing release from an underground storage tank from further migrating into surrounding geological formations and groundwater of a surrounding underground storage tank field includes a low permeable layer surrounding the tank field and a set of horizontal pipes positioned above and below the underground storage tank above the low permeable layer within underground storage tank field. The horizontal pipes include two portions including a lower portion installed below the underground storage tanks and an upper portion installed above the underground storage tanks. An air blower injects air in the lower portion of the horizontal pipes for providing air flow which passes through the formation of the underground storage tank to strip out volatile and semi-volatile components of any release from the underground storage tanks when there is a small release from the underground storage tanks. Free products released from the underground storage tanks are collected in the lower portion of the horizontal pipes. Air flow and vapor of the volatile and semi-volatile components is collected in the upper portion of the horizontal pipes when the lower portion of the horizontal pipes is used to provide air flow.
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Graysay Tamara L.
Lee Jong-Suk
LandOfFree
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