- Table 4 to Subpart MMMM of Part 60—Model Rule—Operating Parameters for Existing Sewage Sludge Incineration Units a

For these operating parameters You must establish these operating limits And monitor using these minimum frequencies Data measurement Data recording bData averaging
period for
compliance
All sewage sludge incineration unitsCombustion chamber operating temperature (not required if afterburner temperature is monitored)Minimum combustion chamber operating temperature or afterburner temperatureContinuousEvery 15 minutes12-hour block. Fugitive emissions from ash handlingSite-specific operating requirementsNot applicableNo applicableNot applicable. ScrubberPressure drop across each wet scrubberMinimum pressure dropContinuousEvery 15 minutes12-hour block. Scrubber liquid flow rateMinimum flow rateContinuousEvery 15 minutes12-hour block. Scrubber liquid pHMinimum pHContinuousEvery 15 minutes3-hour block. Fabric FilterAlarm time of the bag leak detection system alarmMaximum alarm time of the bag leak detection system alarm (this operating limit is provided in § 60.4850 and is not established on a site-specific basis) Electrostatic precipitatorSecondary voltage of the electrostatic precipitator collection platesMinimum power input to the electrostatic precipitator collection platesContinuousHourly12-hour block. Secondary amperage of the electrostatic precipitator collection platesEffluent water flow rate at the outlet of the electrostatic precipitatorMinimum effluent water flow rate at the outlet of the electrostatic precipitatorHourlyHourly12-hour block. Activated carbon injectionMercury sorbent injection rateMinimum mercury sorbent injection rateHourlyHourly12-hour block. Dioxin/furan sorbent injection rateMinimum dioxin/furan sorbent injection rateCarrier gas flow rate or carrier gas pressure dropMinimum carrier gas flow rate or minimum carrier gas pressure dropContinuousEvery 15 minutes12-hour block. AfterburnerTemperature of the afterburner combustion chamberMinimum temperature of the afterburner combustion chamberContinuousEvery 15 minutes12-hour block.

a As specified in § 60.5190, you may use a continuous emissions monitoring system or continuous automated sampling system in lieu of establishing certain operating limits.

b This recording time refers to the minimum frequency that the continuous monitor or other measuring device initially records data. For all data recorded every 15 minutes, you must calculate hourly arithmetic averages. For all parameters, you use hourly averages to calculate the 12-hour or 3-hour block average specified in this table for demonstrating compliance. You maintain records of 1-hour averages.