Record Display for the EPA National Library Catalog


Main Title Environmental Control of Toxic Metal Air Emissions from the Combustion of Coal and Wastes.
Author Wendt, J. O. L. ; Davis, S. B. ; Gale, T. K. ; Seames, W. S. ; Linak, W. P. ;
CORP Author Arizona Univ., Tucson. Dept. of Chemical and Environmental Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Publisher Jan 2000
Year Published 2000
Report Number EPA-R-826317 ;EPA-R-825389-01; EPA/600/A-00/001;
Stock Number PB2000-102971
Additional Subjects Air pollution control ; Metals ; Toxic substances ; Emissions ; Combustion products ; Municipal wastes ; Industrial wastes ; Incinerators ; Flue gases ; Coal ; Incineration ; Combustion efficiency ; Separation ; Waste treatment ; Sorbents ; Kaolinite ; Lime ; Calcium ; Aluminum ; Silicon ;
Library Call Number Additional Info Location Last
NTIS  PB2000-102971 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 18p
Toxic metals, such as arsenic, selenium, mercury, chromium, lead, and cadmium, are present in coals and in many municipal and industrial wastes. This paper is concerned with the partitioning of these metals during combustion, and with the mitigation of their effect on the environment using high temperature sorbents. The partitioning of arsenic and selenium during coal combustion in a 17 kW laboratory down-fired furnace is discussed, and appropriate mechanisms identified. Second, the speciation of mercury and chromium during combustion is addressed, through special experiments on an 82 kW refractory-lined combustor. Third, experimental results on the sorption of individual and multiple metals on sorbents are presented. These sorbents were kaolinite and lime, and were injected directly into flue gas containing lead and cadmium, which had vaporized in the main flame. Results suggest that toxic metals from coal and waste combustion can interact with lime and kaolinite sorbents and that, for some multiple metal mixtures, designer sorbents containing calcium, aluminum, and silicon might be useful to capture them and render them environmentally benign.