Soil heating with a rotating electromagnetic field
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United States of America Patent
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-
Jul 2, 2002
Grant Date -
N/A
app pub date -
May 19, 2000
filing date -
Oct 28, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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