Active cooling-based surface confinement system for thermal soil treatment
Abstract
A thermal barrier is disclosed for surface confinement with active cooling to control subsurface pressures during thermal remediation of shallow (5-20 feet) underground contaminants. If steam injection is used for underground heating, the actively cooled thermal barrier allows the steam to be injected into soil at pressures much higher (20-60 psi) than the confining strength of the soil, while preventing steam breakthrough. The rising steam is condensed to liquid water at the thermal barrier-ground surface interface. The rapid temperature drop forced by the thermal barrier drops the subsurface pressure to below atmospheric pressure. The steam and contaminant vapors are contained by the thermal blanket, which can be made of a variety of materials such as steel plates, concrete slabs, membranes, fabric bags, or rubber bladders. 1 fig.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 541717
- Patent Number(s):
- 5681130
- Application Number:
- PAN: 8-603,112
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 28 Oct 1997
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; REMEDIAL ACTION; STEAM INJECTION; CONTAINMENT SYSTEMS; TEMPERATURE CONTROL; PRESSURE CONTROL; RESERVOIR PRESSURE; SOILS; DESIGN; VAPOR CONDENSATION; DEGASSING
Citation Formats
Aines, R D, and Newmark, R L. Active cooling-based surface confinement system for thermal soil treatment. United States: N. p., 1997.
Web.
Aines, R D, & Newmark, R L. Active cooling-based surface confinement system for thermal soil treatment. United States.
Aines, R D, and Newmark, R L. Tue .
"Active cooling-based surface confinement system for thermal soil treatment". United States.
@article{osti_541717,
title = {Active cooling-based surface confinement system for thermal soil treatment},
author = {Aines, R D and Newmark, R L},
abstractNote = {A thermal barrier is disclosed for surface confinement with active cooling to control subsurface pressures during thermal remediation of shallow (5-20 feet) underground contaminants. If steam injection is used for underground heating, the actively cooled thermal barrier allows the steam to be injected into soil at pressures much higher (20-60 psi) than the confining strength of the soil, while preventing steam breakthrough. The rising steam is condensed to liquid water at the thermal barrier-ground surface interface. The rapid temperature drop forced by the thermal barrier drops the subsurface pressure to below atmospheric pressure. The steam and contaminant vapors are contained by the thermal blanket, which can be made of a variety of materials such as steel plates, concrete slabs, membranes, fabric bags, or rubber bladders. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 28 00:00:00 EST 1997},
month = {Tue Oct 28 00:00:00 EST 1997}
}