Liquid purification or separation – Processes – Including geographic feature
Patent
1985-09-03
1986-06-03
Castel, Benoit
Liquid purification or separation
Processes
Including geographic feature
210170, 210901, 405 50, 405129, E02D 1918, E02D 1920
Patent
active
045928460
ABSTRACT:
A method for the containment of liquid-containing waste materials, such as drilling residues, in an earthen reservoir is described. The method comprises providing an in-ground reservoir opening upwardly to the surface of the ground and a sloping in-ground drainage area abutting one side of the reservoir, the bottom of the drain area being below the level to which the reservoir is filled. The reservoir and drainage area are lined with flexible liquid-impervious liners having extended sides. The extended sides of the reservoir lining are drawn, in part, over waste material in the reservoir leaving a center area of waste material uncovered with overlapped reservoir liner. The drainage area is filled with ballast material to provide a porous bed and is provided at its low end with a stand-pipe which extends from near the bottom of the drainage area to above the surface of the ground. Additionally, ballast material is placed on top of the extended side of the reservoir liner adjacent to the drainage area, thereby providing a liquid passageway from the reservoir to the drainage area. The reservoir and drainage area are covered with a flexible liquid-impervious liner cap and the space above the reservoir and drainage area filled with soil to the final grade of the surrounding terrain.
REFERENCES:
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Merriman Jeffrey E.
Metzger Donald D.
Castel Benoit
Evans Linda S.
PPG Industries Inc.
Stein Irwin M.
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