VOCs
in Non-Arid Soils Integrated Demonstration
Electrical Resistance Tomography
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Video 1.5b (:1:13)
the 3-D visualization of under-
ground processes such as those used in remediation. This techno-
logy (Video 1.5b), when used either separately or in conjunction with other geophysical, hydrologic, or geochemical methods, is a power-
ful tool in defining the initial con-
ditions and the interactions be-
tween the remedial process and the contaminated environment.
At the Savannah River Site, this technique has been effectively used to monitor
the effectiveness of air permeation in the air injec-
tion and vacuum extraction tests.
Accomplishments
This technique has been success-
fully tested at the Savannah River Site. The technique mapped changes in fluid
saturation as the subsurface conditions were modi-
fied by the remedial process dur-
ing air stripping. This technique has also been used
to evaluate the effectiveness of the Radio Frequency Heating and Six-Phase Heating
tests.