Electrode wells for powerline-frequency electrical heating of soils
- Livermore, CA
- Pleasanton, CA
An electrode well 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 trichioroethylene (TCE) as it is heated.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Number(s):
- US 5907662
- OSTI ID:
- 872307
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electrical heating of soils using high efficiency electrode patterns and power phases
Electrical heating of soils using high efficiency electrode patterns and power phases
Related Subjects
powerline-frequency
electrical
heating
soils
decontamination
soil
enables
removal
volatile
organic
compounds
utilized
combination
vacuum
extraction
preferred
embodiment
utilizes
mild
steel
pipe
current-carrying
conductor
stainless
surrounded
conductive
backfill
material
preferably
graphite
shot
covering
provided
electrically
insulating
subatmospheric
pressure
withdraw
gasoline
trichioroethylene
tce
heated
electrical heating
organic compound
electrically insulating
organic compounds
preferred embodiment
stainless steel
atmospheric pressure
volatile organic
subatmospheric pressure
fill material
volatile material
electrical heat
frequency electrical
frequency electric
preferably graphite
powerline-frequency electrical
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