Ventilation of porous media

Patent · Tue Feb 22 00:00:00 EST 1994

OSTI ID:5177290

Neeper, D A

Methods are presented for distributing gases throughout the interstices of porous materials and removing volatile substances from the interstices of porous materials. Continuous oscillation of pressures and flows results in increased penetration of the interstices by flowing gases and increased transport of gaseous components out of the interstices. The invention is particularly useful in soil vapor extraction. 10 figures.

• DOE Contract Number: W-7405-ENG-36
• Assignee: Dept. of Energy, Washington, DC ()
• Patent Number(s): US 5288169; A
• Application Number: PPN: US 7-829346
• OSTI ID: 5177290
• Resource Relation: Patent File Date: 31 Jan 1992
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
GASES
ENVIRONMENTAL TRANSPORT
POROUS MATERIALS
VENTILATION
SOILS
DECONTAMINATION
VOLATILE MATTER
EXTRACTION
CLEANING
FLUIDS
MASS TRANSFER
MATERIALS
MATTER
SEPARATION PROCESSES
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)