Means and method for hydraulically isolating unsaturated zones i

Details Means and method for hydraulically isolating unsaturated zones i Means and method for hydraulically isolating unsaturated zones i

1994-03-23

1995-06-06

Corbin, David H.

Hydraulic and earth engineering

Soil remediation

In situ contaminant removal or stabilization

405129, 405 52, 588250, B09B 500

Patent

active

054216729

ABSTRACT:
A method and apparatus for hydraulically isolating a volume in porous unsaturated material, such as soil. Air is forced through a permeable layer of material adjacent to the volume to be hydraulically isolated. The air flow through the permeable layer creates a water potential gradient. This causes water to migrate from more saturated areas which in turn would allow hydraulic isolation of any unsaturated area.

REFERENCES:
patent: 3791443 (1974-02-01), Burt et al.
patent: 4362434 (1982-12-01), Valiga et al.
patent: 4430021 (1984-02-01), Wagner et al.
patent: 4745850 (1988-05-01), Bastian et al.

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