40 CFR Table 2
Operating Limits for Wet Scrubbers
June 9, 2020
Open Table
| For these operating parameters | You must establish these operating limits | And monitoring using these minimum frequencies | ||
|---|---|---|---|---|
| Data measurement | Data recording | Averaging time | ||
| Charge rate | Maximum charge rate | Continuous | Every hour | Daily (batch units) 3-hour rolling (continuous and intermittent units).1 |
| Pressure drop across the wet scrubber or amperage to wet scrubber | Minimum pressure drop or amperage | Continuous | Every 15 minutes | 3-hour rolling.1 |
| Scrubber liquor flow rate | Minimum flow rate | Continuous | Every 15 minutes | 3-hour rolling.1 |
| Scrubber liquor pH | Minimum pH | Continuous | Every 15 minutes | 3-hour rolling.1 |
1Calculated each hour as the average of the previous 3 operating hours.
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