Containment of subsurface contaminants

Details Containment of subsurface contaminants Containment of subsurface contaminants

1993-02-03

1994-09-06

Corbin, David H.

Hazardous or toxic waste destruction or containment

Containment

405128, 405258, B09B 300, E02D 300

Patent

active

053450345

ABSTRACT:
A barrier for reducing the spread of a plume of subsurface contaminants. The apparatus includes a well system for injecting a fluid, such as air, just outside and below the periphery of the plume. The fluid is injected at a pressure sufficient to lower the hydraulic conductivity of the soil from the point of injection to the surface thus establishing a curtain-like barrier to groundwater movement. The barrier is established upgradient of the plume to divert groundwater away, or preferably completely around the plume to reduce the flow of groundwater into or out of the plume. The barrier enables the remediation of the confined contamination and then, when the injection of the fluid is halted, the barrier quickly dissipates.

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