Electrode wells for powerline-frequency electrical heating of soils
Abstract
An electrode well is described for use in powerline-frequency heating of soils for decontamination of the soil. Heating of soils enables the removal of volatile organic compounds from soil when utilized in combination with vacuum extraction. A preferred embodiment of the electrode well utilizes a mild steel pipe as the current-carrying conductor to at least one stainless steel electrode surrounded by a conductive backfill material, preferably graphite or steel shot. A covering is also provided for electrically insulating the current-carrying pipe. One of the electrode wells is utilized with an extraction well which is under subatmospheric pressure to withdraw the volatile material, such as gasoline and trichloroethylene (TCE) as it is heated. 4 figs.
- Inventors:
- Issue Date:
- Sponsoring Org.:
- USDOE; USDOE, Washington, DC (United States)
- OSTI Identifier:
- 6482932
- Patent Number(s):
- 5907662
- Application Number:
- PPN: US 8-794219
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 30 Jan 1997
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; CHLORINATED ALIPHATIC HYDROCARBONS; DEGASSING; DESIGN; ELECTRIC HEATING; ELECTRODES; GASOLINE; REMEDIAL ACTION; SOILS; VOLATILE MATTER; WELLS; FUELS; HALOGENATED ALIPHATIC HYDROCARBONS; HEATING; LIQUID FUELS; MATTER; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; PETROLEUM PRODUCTS; 540220* - Environment, Terrestrial- Chemicals Monitoring & Transport- (1990-)
Citation Formats
Buettner, H M, Daily, W D, Aines, R D, Newmark, R L, Ramirez, A L, and Siegel, W H. Electrode wells for powerline-frequency electrical heating of soils. United States: N. p., 1999.
Web.
Buettner, H M, Daily, W D, Aines, R D, Newmark, R L, Ramirez, A L, & Siegel, W H. Electrode wells for powerline-frequency electrical heating of soils. United States.
Buettner, H M, Daily, W D, Aines, R D, Newmark, R L, Ramirez, A L, and Siegel, W H. Tue .
"Electrode wells for powerline-frequency electrical heating of soils". United States.
@article{osti_6482932,
title = {Electrode wells for powerline-frequency electrical heating of soils},
author = {Buettner, H M and Daily, W D and Aines, R D and Newmark, R L and Ramirez, A L and Siegel, W H},
abstractNote = {An electrode well is described for use in powerline-frequency heating of soils for decontamination of the soil. Heating of soils enables the removal of volatile organic compounds from soil when utilized in combination with vacuum extraction. A preferred embodiment of the electrode well utilizes a mild steel pipe as the current-carrying conductor to at least one stainless steel electrode surrounded by a conductive backfill material, preferably graphite or steel shot. A covering is also provided for electrically insulating the current-carrying pipe. One of the electrode wells is utilized with an extraction well which is under subatmospheric pressure to withdraw the volatile material, such as gasoline and trichloroethylene (TCE) as it is heated. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 25 00:00:00 EDT 1999},
month = {Tue May 25 00:00:00 EDT 1999}
}