Sealing system and method for sealing earthen containers

Details Sealing system and method for sealing earthen containers Sealing system and method for sealing earthen containers

1981-12-21

1984-03-27

Taylor, Dennis L.

Hydraulic and earth engineering

Bank, shore, or bed protection

Wave or flow dissipation

405 28, 405 35, E02B 304

Patent

active

044390629

ABSTRACT:
A sealing system for an earthen container such as a pit, lagoon, land fill or the like for storing waste materials includes an outer seal layer formed by mixing a water expandable colloidal clay, such as bentonite with the soil of the pit. A middle or intermediate layer is defined by a layer of granular fill material placed on the first layer. An inner seal layer is formed by mixing water expandable colloidal clay, such as bentonite with the upper surface of the granular fill layer. A source of pressurized clean fluid is in communication with the granular fill layer to develop pressure therein and prevent leakage through the inner seal layer. Level sensing apparatus for sensing the level of waste and clean fluids may be included and apparatus for detecting leakage may also be included.

REFERENCES:
patent: 3383863 (1968-05-01), Berry
patent: 3505820 (1970-04-01), Draper et al.
patent: 3925992 (1975-12-01), Backstrom
patent: 4279547 (1981-07-01), Clem
patent: 4335978 (1982-06-01), Mutch
patent: 4345581 (1982-08-01), Sbacher
patent: 4352601 (1982-10-01), Valiga et al.

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