40 CFR Table 2 to Subpart WWWW: 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 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.