In situ heating to detoxify organic-contaminated soils

Buelt, James L; Oma, Kenton H

Title: In situ heating to detoxify organic-contaminated soils

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Abstract

A method and apparatus for decontaminating ground areas where toxic chemicals are buried comprises disposition of a plurality of spaced electrodes in the ground to be treated and application of a voltage across the electrodes for bringing about current flow through the ground. Power delivered to the ground volatilizes the chemicals which are collected and directed to a gas treatment system. The preferred form of the invention employs high voltage arc discharge between the electrodes for heating a ground region to relatively high temperatures at relatively low power levels.

Inventors:

Buelt, James L ^[1]; Oma, Kenton H ^[1]

Richland, WA

Issue Date:: 1990-01-01

Research Org.:: Battelle Memorial Institute, Columbus, OH (United States)

OSTI Identifier:: 867526

Patent Number(s):: 4957393

Assignee:: Battelle Memorial Institute (Richland, WA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B09 - DISPOSAL OF SOLID WASTE B09C - RECLAMATION OF CONTAMINATED SOIL

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

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B - PERFORMING OPERATIONS B09 - DISPOSAL OF SOLID WASTE B09C - RECLAMATION OF CONTAMINATED SOIL
B09C1/065 - {by pyrolysis}

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
E21B36/04 - using electrical heaters
E21B43/24 - using heat, e.g. steam injection

E - FIXED CONSTRUCTIONS E02 - HYDRAULIC ENGINEERING E02D - FOUNDATIONS
E02D3/11 - by thermal, electrical or electro-chemical means

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING
H05B3/60 - Heating arrangements wherein the heating current flows through granular powdered or fluid material, e.g. for salt-bath furnace, electrolytic heating

B - PERFORMING OPERATIONS B09 - DISPOSAL OF SOLID WASTE B09C - RECLAMATION OF CONTAMINATED SOIL
B09C2101/00 - In situ
B09C1/067 - {by vitrification}

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING
H05B3/03 - Electrodes

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DOE Contract Number:: AC06-76RL01830

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: situ; heating; detoxify; organic-contaminated; soils; method; apparatus; decontaminating; ground; toxic; chemicals; buried; comprises; disposition; plurality; spaced; electrodes; treated; application; voltage; bringing; current; flow; power; delivered; volatilizes; collected; directed; gas; treatment; preferred; form; employs; discharge; region; relatively; temperatures; levels; spaced electrodes; contaminated soils; gas treatment; contaminated soil; power levels; power level; current flow; preferred form; power delivered; toxic chemicals; situ heating; toxic chemical; decontaminating ground; /405/

Citation Formats


                    Buelt, James L, and Oma, Kenton H. In situ heating to detoxify organic-contaminated soils.  United States: N. p., 1990. 
        Web.

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                    Buelt, James L, & Oma, Kenton H. In situ heating to detoxify organic-contaminated soils.  United States.

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                    Buelt, James L, and Oma, Kenton H. Mon .  
        "In situ heating to detoxify organic-contaminated soils".  United States.  https://www.osti.gov/servlets/purl/867526.

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@article{osti_867526,

  title        = {In situ heating to detoxify organic-contaminated soils},

  author       = {Buelt, James L and Oma, Kenton H},

  abstractNote = {A method and apparatus for decontaminating ground areas where toxic chemicals are buried comprises disposition of a plurality of spaced electrodes in the ground to be treated and application of a voltage across the electrodes for bringing about current flow through the ground. Power delivered to the ground volatilizes the chemicals which are collected and directed to a gas treatment system. The preferred form of the invention employs high voltage arc discharge between the electrodes for heating a ground region to relatively high temperatures at relatively low power levels.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1990},

  month        = {1}

}

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