40 CFR Table 2 Operating Limits for Wet Scrubbers | Code of Federal Regulations | US Law | LawStack Online

40 CFR Table 2

Operating Limits for Wet Scrubbers

June 9, 2020

CFR

For these operating parameters	You must establish these operating limits	And monitor using these minimum frequencies
For these operating parameters	You must establish these operating limits	Data measurement	Data recording	Averaging time
Charge rate	Maximum charge rate	Continuous	Every hour	1. Daily (batch units) 2. 3-hour rolling (continuous and intermittent units)^a
Pressure drop across the wet scrubber or amperage to wet scrubber	Minimum pressure drop or amperage	Continuous	Every 15 minutes	3-hour rolling^a
Scrubber liquor flow rate	Minimum flow rate	Continuous	Every 15 minutes	3-hour rolling^a
Scrubber liquor pH	Minimum pH	Continuous	Every 15 minutes	3-hour rolling^a

^aCalculated each hour as the average of the previous 3 operating hours.

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