System for the removal of contaminant soil-gas vapors

Patent · Wed Jan 01 00:00:00 EST 1997

OSTI ID:871274

Weidner, Jerry R ^[1]; Downs, Wayne C ^[2]; Kaser, Timothy G ^[3]; Hall, H James ^[4]

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1. Iona, ID
2. Sugar City, ID
3. Ammon, ID
4. Idaho Falls, ID

A system extracts contaminated vapors from soil or other subsurface regions by using changes in barometric pressure to operate sensitive check valves that control air entry and removal from wells in the ground. The system creates an efficient subterranean flow of air through a contaminated soil plume and causes final extraction of the contaminants from the soil to ambient air above ground without any external energy sources.

• Research Organization: EG & G IDAHO INC
• DOE Contract Number: AC07-76ID01570
• Assignee: Lockheed Idaho Technologies Company (Idaho, ID)
• Patent Number(s): US 5697437
• OSTI ID: 871274
• Country of Publication: United States
• Language: English

Related Subjects

removal
contaminant
soil-gas
vapors
extracts
contaminated
soil
subsurface
regions
changes
barometric
pressure
operate
sensitive
check
valves
control
air
entry
ground
creates
efficient
subterranean
flow
plume
causes
final
extraction
contaminants
ambient
external
energy
sources
gas vapor
contaminated soil
energy sources
surface region
ambient air
energy source
check valve
check valves
external energy
surface regions
subsurface region
barometric pressure
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