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SIZE DISTRIBUTIONS OF TRACE METALS IN FLUE GAS PARTICULATE FROM A PILOT-SCALE ROTARY KILN INCINERATOR
Citation:
Fournier, Jr., D., L. Waterland, AND G. Carroll. SIZE DISTRIBUTIONS OF TRACE METALS IN FLUE GAS PARTICULATE FROM A PILOT-SCALE ROTARY KILN INCINERATOR. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-90/181.
Description:
The distributions of nine trace metals in flue gas particulate by particle size range were determined as part of a pilot-scale hazardous waste incineration test program. hese tests were conducted in the rotary kiln incinerator system at the U.S. EPA's Incineration Research Facility in Jefferson, Arkansas. he metals (arsenic, barium, bismuth, cadmium, chromium, copper, lead, magnesium, and strontium) were fed to the kiln as part of a synthetic waste. esting was designed to evaluate the effects of kiln temperature (varied from 816 degrees C to 927 degrees C) and waste feed chlorine content (varied from 0% to 8%) on metal distributions. lue gas particulate samples, collected at the afterburner exit, were size-fractionated, yielding ranges of nominally less than 2 um, 2 to 4 um, 4 to 10 um, 10 to 30 um, and greater than 30 um. ncreasing kiln temperature from 816 degrees C to 927 degrees C caused the average distributions to shift from roughly 20% less than 10 um to an average of 60% less than 10 um for all metals except chromium. n increase in waste feed chlorine content from 0% to 4% caused the distributions of cadmium, copper and lead to shift from roughly 20% less than 10 um to 55% less than 10 um. o further effects were observed for these three metals as feed chlorine increased from 4% to 8%. or chromium, increasing chlorine content from 0% to 4% to 8%, caused a corresponding shift of 2% to 20% to 50% in the less than 10 um fraction.