Metal Emissions from Joule-Heated Vitrification Systems

Vitrification demonstrations were conducted for surrogates of three inorganic wastewater sludges in a high-temperature, refractory-lined, slurry-fed melter. The total par-ticulate concentrations and melter decontamination factors were determined for selected elements. The decontamination factors wer...

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Bibliographic Details
Published in:Journal of the Air & Waste Management Association (1995) 1999-02, Vol.49 (2), p.219-224
Main Authors: Overcamp, Thomas J., Harden, John M., Cicero-Herman, Connie A., Bickford, Dennis F.
Format: Article
Language:English
Subjects:
Applied sciences
Atmospheric pollution
Combustion and energy production
Exact sciences and technology
Other industrial wastes. Sewage sludge
Pollution
Pollution sources. Measurement results
Wastes
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Summary:Vitrification demonstrations were conducted for surrogates of three inorganic wastewater sludges in a high-temperature, refractory-lined, slurry-fed melter. The total par-ticulate concentrations and melter decontamination factors were determined for selected elements. The decontamination factors were less than 10 for cadmium and lead in all three demonstrations. The decontamination factors for chromium were less than 30 in the two demonstrations using refractories containing chromium, and they were greater than 150 for the demonstrations using refractories without chromium. Except for one demonstration on a surrogate waste with a high sulfate content, decontamination factors were above 80 for the other heavy metals in the demonstrations.
ISSN:1096-2247
2162-2906
DOI:10.1080/10473289.1999.10463795