Wis. Admin. Code Department of Natural Resources NR 274.113
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 11-12
Primary Columbium-Tantalum Concentrate Digestion Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of concentrate digested | |
Lead | 0.174 | 0.081 |
Zinc | 0.635 | 0.261 |
Ammonia (as N) | 82.910 | 36.450 |
Fluoride | 21.770 | 12.440 |
Table 11-13
Primary Columbium-Tantalum Solvent Extraction Raffinate
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per concentra | million pounds) of te digested |
Lead | 2.592 | 1.203 |
Zinc | 9.442 | 3.888 |
Ammonia (as N) | 1,233.000 | 542.500 |
Fluoride | 324.000 | 185.100 |
Table 11-14
Primary Columbium-Tantalum Solvent Extraction Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of concentrate digested | |
Lead | 0.069 | 0.032 |
Zinc | 0.251 | 0.103 |
Ammonia (as N) | 32.790 | 14.420 |
Fluoride | 8.610 | 4.920 |
Table 11-15
Primary Columbium-Tantalum Precipitation and Filtration
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of concentrate digested | |
Lead | 3.833 | 1.780 |
Zinc | 13.960 | 5.750 |
Ammonia (as N) | 1,825.000 | 802.200 |
Fluoride | 479.100 | 273.800 |
Table 11-16
Primary Columbium-Tantalum Precipitation and Filtration Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of concentrate digested | |
Lead | 1.778 | 0.826 |
Zinc | 6.478 | 2.668 |
Ammonia (as N) | 846.600 | 372.200 |
Fluoride | 222.300 | 127.000 |
Table 11-17
Primary Columbium-Tantalum Tantalum Salt Drying
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of tantalum salt dried | |
Lead | 16.950 | 7.871 |
Zinc | 61.750 | 25.430 |
Ammonia (as N) | 8,070.000 | 3,548.000 |
Fluoride | 2,119.000 | 1,211.000 |
Table 11-18
Primary Columbium-Tantalum Oxides Calcining Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of columbium-tantalum oxide dried | |
Lead | 1.076 | 0.500 |
Zinc | 3.919 | 1.614 |
Ammonia (as N) | 512.200 | 225.200 |
Fluoride | 134.500 | 76.840 |
Table 11-19
Primary Columbium-Tantalum Reduction of Tantalum Salt to Metal
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of tantalum salt reduced | |
Lead | 46.500 | 21.590 |
Zinc | 169.400 | 69.750 |
Ammonia (as N) | 22,140.000 | 9,732.000 |
Fluoride | 5,813.000 | 3,322.000 |
Table 11-20
Primary Columbium-Tantalum Reduction of Tantalum Salt to Metal Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of tantalum salt reduced | |
Lead | 0.572 | 0.266 |
Zinc | 2.084 | 0.858 |
Fluoride | 71.510 | 40.860 |
Table 11-21
Primary Columbium-Tantalum Tantalum Powder Wash
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of tantalum powder washed | |
Lead | 5.721 | 2.656 |
Zinc | 20.840 | 8.582 |
Ammonia (as N) | 2,724.400 | 1,198.000 |
Fluoride | 715.200 | 408.700 |
Table 11-22
Primary Columbium-Tantalum Consolidation and Casting Contact Cooling
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of columbium or tantalum cast or consolidated | |
Lead | 0.000 | 0.000 |
Zinc | 0.000 | 0.000 |
Ammonia (as N) | 0.000 | 0.000 |
Fluoride | 0.000 | 0.000 |
Wis. Admin. Code Department of Natural Resources NR 274.113