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EPA 540/A5-91/007
Plasma Centrifugal Furnace
Retech, Inc.
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Plasma Centrifugal Furnace
Retech, Inc. (229K)
ABSTRACT
Plasma Centrifugal Furnace
Retech, Inc.
Applications Analysis Report
EPA 540/A5-91/007
June 1992
The Plasma Centrifugal Furnace (PCF) process developed by Retech, Inc.
is designed to thermally treat metal and organic contaminated wastes.
The technology uses a plasma torch powered by electric current to heat
the waste stream to high temperatures (>2,000 F) inducing the binding
of m etals to a non-leachable slag and thermal destruction of organic
contaminant. The technology is specifically designed to treat mixed, transuranic,
and chemical plant wastes. The PCF technology, operated by MSE, Inc, was
demonstrated at the Component Development and Integration DOE Facility
in Butte, Montana to evaluate the technology's suitability to treat contaminated
soils and sludges from the National Engineering Laboratory, Idaho. The
demonstration feed soil used a mixture of metal-bearing soil from the
Silver Bow Creek Superfund site spiked with No. 2 diesel oil (10% by weight),
metals (28,000 ppm of ZnO) and organic compounds (1,000 ppm of hexachlorobenzene).
All feed and effluent streams were sampled during the test. Slag generated
by the process met TCLP standards for organic and inorganic constituents
and hexachlorobenzene was at or below detection limits in off-gas samples,
producing a destruction removal efficiency (DRE) of 99.99%. The scrubbers,
although effective in removing VOCs, were less so in the removal of particulates
during the test.
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Posted February 26, 1999
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