Soil heating with a rotating electromagnetic field
AssigneeKAI Technologies, Inc.
InventorRaymond S. Kasevich
Life of this patent
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Abstract
A soil remediation system heats contaminated soil by generating a rotating sub-surface electromagnetic field. The system includes three electrodes disposed 120 degrees apart on a remediation circle. These electrodes are excited by AC voltages with 120 degree phase differences relative to each other. This results in the generation of a sub-surface traveling wave that propagates in a circumferential direction.
Claims25
A system for heating earthen material with a sub-surface rotating field, said system comprising:
- a first electrode in electrical communication with said earthen material, said first electrode being driven by a first AC voltage and being disposed on a circumference of a circle;
- a second electrode in electrical communication with said earthen material, said second electrode being driven by a second AC voltage having a 120 degree phase difference relative to said first AC voltage, said second electrode being disposed on said circumference 120 degrees from said first electrode;
- and
- a third electrode in electrical communication with said earthen material, said third electrode being driven by a third AC voltage having a 120 degree phase difference relative to said second AC voltage, said third electrode being disposed on said circumference 120 degrees from said second electrode.
A method for heating earthen material, the method comprising the steps of:
- inserting first, second, and third electrodes along the circumference of a circle;
- and
- applying first, second, and third voltages to said first, second, and third electrodes respectively, thereby generating a sub-surface rotating electromagnetic field.
A system for heating earthen material with a sub-surface rotating field, said system comprising
- a heating element consisting of:
- a first electrode in electrical communication with said earthen material, said first electrode being driven by a first AC voltage and being disposed on a circumference of a circle;
- a second electrode in electrical communication with said earthen material, said third electrode being driven by a third AC voltage having a 120 degree phase difference relative to said second AC voltage, said third electrode being disposed on said circumference 120 degrees from said second electrode.
Dependencies are inferred from the claim text.