Means for installing membranes in containment pits for tanks storing liquids
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United States of America Patent
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Oct 18, 1988
Grant Date -
N/A
app pub date -
Nov 14, 1986
filing date -
Nov 14, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention process for installing an overliner membrane begins with preparing a site by digging a pit for the installation of fuel tanks, for example, which may be associated with leakage or spillage of fluids. Then, ballast is packed under and around the tanks to support and stabilize their position, the ballast rising to a level which is above the tanks but below points where the leakage or spillage may occur. Next, a frame is built over the ballast in the area where the leakage or spillage may occur. A membrane is spread across the surface of the ballast and attached to the frame in order to form a basin in which this leakage or spillage may collect. The frame and the membrane are completely covered with ballast in a manner which maintains the side walls of the membrane in a vertical position. A trench system for delivery pipes carrying fuel from the tank to outlying locations contains a trench liner membrane which surrounds the pipes and drains into the membrane basin.
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