- Table 2 to Subpart WWWW—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 | c24 |
|---|
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.