Municipal Waste Combustor Carbon Monoxide Guidelines

[Parts per million by volume] Municipal waste combustor technology The following emission limits and averaging times apply . . . Carbon monoxide emission limit (parts per million by volume) a Averaging time (hours) b Mass burn waterwall 100 4 Mass burn refractory 100 4 Mass burn rotary refractory 110 24 Mass burn rotary waterwall 110 24 Modular starved air 50 4 Modular excess air 50 4 Refuse-derived fuel stoker 110 24 Fluidized bed, mixed fuel (wood/refuse-derived fuel) 110 24 Bubbling fluidized bed combustor 100 4 Circulating fluidized bed combustor 100 4 Pulverized coal/refuse-derived fuel mixed fuel-fired combustor 110 4 Spreader stoker coal/refuse-derived fuel mixed fuel-fired combustor 110 24 Semi-suspension refuse-derived fuel-fired combustor/wet refuse-derived fuel process conversion 250 c 24 Spreader stoker fixed floor refuse-derived fuel-fired combustor/100 percent coal capable 250 c 24 a Measured at the combustor outlet in conjunction with a measurement of oxygen concentration, corrected to 7 percent oxygen (dry basis). Calculated as an arithmetic average. CEMS data during warmup, startup, and shutdown, as defined in this subpart, are not corrected to 7 percent oxygen, and are used as measured. The averaging times are specified in greater detail in § 60.6495(b). b Averaging times are 4-hour or 24-hour block arithmetic averages. c 24-hour block average, geometric mean.