Large Municipal Waste Combustor Carbon Monoxide Limits

[Parts per million by volume] Municipal waste combustor technology New large municipal waste combustors Carbon monoxide emission limit (parts per million by volume) a Averaging time (hours) b Mass burn waterwall 76 4 Mass burn refractory 76 4 Mass burn rotary waterwall 76 24 Modular starved air 50 4 Modular excess air 50 4 Refuse-derived fuel stoker 100 24 Bubbling fluidized bed combustor 100 4 Circulating fluidized bed combustor 100 4 Pulverized coal/refuse-derived fuel mixed fuel-fired combustor 100 4 Spreader stoker coal/refuse-derived fuel mixed fuel-fired combustor 100 24 a Measured at the combustor outlet in conjunction with a measurement of oxygen concentration, corrected to 7 percent oxygen (dry basis). 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 § 60.5940(b). b Averaging times are 4-hour or 24-hour block arithmetic averages.