- Table 3 to Subpart Cb of Part 60—Municipal Waste Combustor Operating Guidelines
| Municipal waste combustor technology | Carbon monoxide emissions levels (parts per million by volume) a | Averaging time (hrs) b | Mass burn waterwall | 100 | 4 | Mass burn refractory | 100 | 4 | Mass burn rotary refractory | 100 | 24 | Mass burn rotary waterwall | 250 | 24 | Modular starved air | 50 | 4 | Modular excess air | 50 | 4 | Refuse-derived fuel stoker | 200 | 24 | Fluidized bed, mixed fuel (wood/refuse-derived fuel) | 200 | c 24 | Bubbling fluidized bed combustor | 100 | 4 | Circulating fluidized bed combustor | 100 | 4 | Pulverized coal/refuse-derived fuel mixed fuel-fired combustor | 150 | 4 | Spreader stoker coal/refuse-derived fuel mixed fuel-fired combustor | 200 | 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 |
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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.
b Averaging times are 4-hour or 24-hour block averages.
c 24-hour block average, geometric mean.