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Title: 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 = {1999},
month = {5}
}