Record Display for the EPA National Library Catalog


Main Title Trace Metal Fate in a Rotary Kiln Incinerator with an Ionizing Wet Scrubber (Journal Article).
Author Waterland, L. R. ; Fournier, D. J. ; Lee, J. W. ; Carroll, G. J. ;
CORP Author Acurex Corp., Jefferson, AR.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher c1991
Year Published 1991
Report Number EPA-68-C9-0038; EPA/600/J-91/253;
Stock Number PB92-110568
Additional Subjects Metals ; Incinerators ; Air pollution control equipment ; Waste disposal ; Scrubbers ; Pilot plants ; Particles ; Acids ; Hazardous materials ; Performance evaluation ; Afterburners ; Combustion products ; Wet methods ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB92-110568 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
A series of pilot-scale incineration tests was performed at EPA's Incineration Research Facility (IRF) in Jefferson, Arkansas, to evaluate the fate of trace metals fed to a rotary kiln incinerator equipped with an ionizing wet scrubber (IWS) for particulate and acid gas control. Test variables were kiln temperature, ranging from 816 to 927 C (1500 to 1700 F); afterburner temperature, ranging from 982 to 1204 C (1800 to 2200 F); and feed chlorine content, ranging from 0 to 8 percent. The test program evaluated the fate of five hazardous constituent trace metals (arsenic, barium, cadmium, chromium, and lead) and four nonhazardous constituent trace metals (bismuth, copper, magnesium, and strontium). The test results indicate that cadmium and bismuth were relatively volatile, with an average of less than 40 percent discharged with the kiln ash. Arsenic, barium, chromium, copper, lead, magnesium, and strontium were relatively nonvolatile, with an average of greater than 80 percent discharged with the kiln ash. Observed relative metal volatilities generally agreed with the volatilities predicted based on vapor pressure/temperature relationships, with the exception of arsenic which was much less volatile than predicted. The volatility of cadmium, bismuth, and lead increased as kiln temperature was increased; the discharge distributions of the remaining metals were not significantly affected by changes in kiln temperature. Apparent scrubber collection efficiencies for the metals averaged 22 to 71 percent, and were generally higher for the less volatile metals. The overall average metal collection efficiency was 43 percent.