Wis. Admin. Code Department of Natural Resources NR 274.123
Except as provided in 40 CFR 125.30 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BAT:
Table 12-12
Secondary Silver Film Stripping
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver from film stripping | |
Copper | 64.450 | 30.720 |
Zinc | 51.360 | 21.150 |
Ammonia (as N) | 6,712.000 | 2,951.000 |
Table 12-13
Secondary Silver Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver from precipitation and filtration of film stripping solutions | |
Copper | 1.242 | 0.592 |
Zinc | 0.990 | 0.408 |
Ammonia (as N) | 129.300 | 56.840 |
Table 12-14
Secondary Silver Precipitation and Filtration of Film Stripping Solutions
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver precipitated | |
Copper | 73.690 | 35.120 |
Zinc | 58.720 | 24.180 |
Ammonia (as N) | 7,674.000 | 3,374.000 |
Table 12-15
Secondary Silver Precipitation and Filtration of Photographic Solutions
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver precipitated | |
Copper | 34.048 | 16.226 |
Zinc | 27.132 | 11.172 |
Ammonia (as N) | 3,545.000 | 1,559.000 |
Table 12-16
Secondary Silver Precipitation and Filtration of Photographic Solutions Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver from precipitation and filtration of photographic solutions | |
Copper | 15.540 | 7.706 |
Zinc | 12.380 | 5.099 |
Ammonia (as N) | 1,618.000 | 711.400 |
Table 12-17
Secondary Silver Electrolytic Refining
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver from electrolytic refining | |
Copper | 0.973 | 0.464 |
Zinc | 0.775 | 0.319 |
Ammonia (as N) | 101.300 | 44.540 |
Table 12-18
Secondary Silver Furnace Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver roasted, smelted, or dried | |
Copper | 0.000 | 0.000 |
Zinc | 0.000 | 0.000 |
Ammonia (as N) | 0.000 | 0.000 |
Table 12-19
Secondary Silver Leaching
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver produced from leaching | |
Copper | 0.110 | 0.053 |
Zinc | 0.088 | 0.036 |
Ammonia (as N) | 11.470 | 5.040 |
Table 12-20
Secondary Silver Leaching Wet Air Pollution Control and Precipitation of Nonphotographic Solutions Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver produced from leaching or precipitated | |
Copper | 5.671 | 2.703 |
Zinc | 4.519 | 1.861 |
Ammonia (as N) | 590.500 | 259.600 |
Table 12-21
Secondary Silver Precipitation and Filtration of Nonphotographic Solutions
BAT Effluent Limitations | ||
Maximum for any Maximum for 1 day monthly average | ||
Pollutant or pollutant property | mg/troy ounce of silver precipitated | |
Copper | 3.930 | 1.873 |
Zinc | 3.132 | 1.290 |
Ammonia (as N) | 409.300 | 179.900 |
Table 12-22
Secondary Silver Floor and Equipment Washdown
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/troy ounce of silver production | |
Copper | 0.000 | 0.000 |
Zinc | 0.000 | 0.000 |
Ammonia (as N) | 0.000 | 0.000 |
Wis. Admin. Code Department of Natural Resources NR 274.123