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The municipal waste combustion (MWC) program supports the development of revised rules for air pollutant emissions from the MWC source category. Basic research is performed on MWC pollutant formation and control mechanisms for acid gas, trace organic, and trace metal emissions. The program also supports field tests, regulation development, and laboratory research for medical waste incinerators. Much of the MWC regulatory support effort has involved the development of good combustion practice and field evaluations of the performance of air pollution control (flue gas cleaning) systems. This effort has encompassed field evaluation of five mass burn combustors,two refuse-derived fuel units, and a mass burn refractory (rotary klin) unit. Air pollution controls on these units include lime spray dryer absorber [SD/fabric filter (SD/FF)], lime SD/electrostatic precipitator (SD/ESP), and dry sorbent (limestone) injection into a furnace and duct sorbent (hydrated lime) injection, both followed by an ESP. In-house MWC research includes supporting the development and operation of an organics laboratory specializing in analysis of polychlorinated dibenzo dioxins and furans (PCDD/PCDF), research on in-furnace injection of additives to control acid gases and the formation/destruction of organic pollutants, and evaluation of the formation and control of metal vapors in furnaces. Technology assessment and technology transfer activities include joint activities with the Department of Energy, Environment Canada, and Niiogaz (a gas cleaning institute in Russia). Researchers have traveled to Canada, Europe, Russia, and Japan to evaluate foreign technology and participate in international conferences and workshops. For more information on this research, visit the website at http://www.epa.gov/appcdwww/crb/aptb/muniwaste.htm. To access directly from this website, click on downloads on the navigation bar.

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