Model Rule—Emission Limits for Existing Large Municipal Waste Combustors

For the air pollutant . . . For this combustor type . . . You must meet this emission limit, corrected to 7 percent oxygen a . . . Particulate matter All 20 mg/dscm. Opacity All 10 percent opacity (6-minute block average). Cadmium All 10 ug/dscm. Lead All 68 ug/dscm. Mercury All 50 ug/dscm or 85 percent reduction by weight. Sulfur dioxide All 22 parts per million by volume dry basis or 75 percent reduction by weight or volume (daily 24-hr geometric average). Nitrogen oxide b Mass burn waterwall 205 parts per million by volume dry basis (daily 24-hr arithmetic average). Mass burn rotary 150 parts per million by volume dry basis (daily 24-hr arithmetic average). Refuse-derived fuel stoker 160 parts per million by volume dry basis (daily 24-hr arithmetic average). Refuse-derived fuel spreader stoker and semi-suspension 160 parts per million by volume dry basis (daily 24-hr arithmetic average). Refuse-derived fuel fluidized bed 180 parts per million by volume dry basis (daily 24-hr arithmetic average). Hydrogen chloride All 10 parts per million by volume dry basis or 96 percent reduction by weight or volume. Dioxins/furans All 14 nanograms per dry standard cubic meter (total mass). a CEMS data during warmup, startup, and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen and are used as measured. b Existing mass burn waterwall units equipped with air-to-air heat exchanger flue gas reheat in advance of a selective catalytic reduction control device are subject to a 50 parts per million by volume dry basis emission limit.