Wis. Admin. Code Department of Natural Resources NR 274.112
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 BPT:
Table 11-1
Primary Columbium-Tantalum Concentrate Digestion Wet Air Pollution Control
BPT 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 | 2.612 | 1.244 |
Zinc | 9.080 | 3.794 |
Ammonia (as N) | 829.000 | 364.500 |
Fluoride | 217.700 | 124.400 |
Total suspended solids | 255.000 | 121.300 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 11-2
Primary Columbium-Tantalum Solvent Extraction Raffinate
BPT 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 | 3.888 | 1.851 |
Zinc | 13.520 | 5.647 |
Ammonia (as N) | 1,233.000 | 542.500 |
Fluoride | 324.000 | 185.100 |
Total suspended solids | 379.500 | 189.500 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 11-3
Primary Columbium-Tantalum Solvent Extraction Wet Air Pollution Control
BPT 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 | 1.032 | 0.491 |
Zinc | 3.586 | 1.498 |
Ammonia (as N) | 327.400 | 143.900 |
Fluoride | 85.960 | 49.120 |
Total suspended solids | 100.700 | 47.890 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 11-4
Primary Columbium-Tantalum Precipitation and Filtration
BPT 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 | 5.750 | 2.738 |
Zinc | 19.990 | 8.350 |
Ammonia (as N) | 1,825.000 | 802.200 |
Fluoride | 479.100 | 273.800 |
Total suspended solids | 561.300 | 267.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 11-5
Primary Columbium-Tantalum Precipitation and Filtration Wet Air Pollution Control
BPT 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 | 26.680 | 12.700 |
Zinc | 92.730 | 38.740 |
Ammonia (as N) | 8,466.000 | 3,722.000 |
Fluoride | 2,223.000 | 1,270.000 |
Total suspended solids | 2,604.000 | 1,239.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 11-6
Primary Columbium-Tantalum Tantalum Salt Drying
BPT 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 | 25.430 | 12.110 |
Zinc | 88.390 | 36.930 |
Ammonia (as N) | 8,070.000 | 3,548.000 |
Fluoride | 2,119.000 | 1,211.000 |
Total suspended solids | 2,482.000 | 1,181.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 11-7
Primary Columbium-Tantalum Oxides Calcining Wet Air Pollution Control
BPT 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 | 16.140 | 7.685 |
Zinc | 56.100 | 23.440 |
Ammonia (as N) | 5,122.000 | 2,252.000 |
Fluoride | 1,345.000 | 768.500 |
Total suspended solids | 1,576.000 | 749.200 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 11-8
Primary Columbium-Tantalum Reduction of Tantalum Salt to Metal
BPT 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 | 69.750 | 33.220 |
Zinc | 242.500 | 101.300 |
Ammonia (as N) | 22,140.000 | 9,732.000 |
Fluoride | 5,813.000 | 3,322.000 |
Total suspended solids | 6,809.000 | 3,239.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 11-9
Primary Columbium-Tantalum Reduction of Tantalum Salt to Metal Wet Air Pollution Control
BPT 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 | 0.858 | 0.409 |
Zinc | 2.983 | 1.246 |
Ammonia (as N) | 272.400 | 119.700 |
Fluoride | 71.510 | 40.860 |
Total suspended solids | 83.770 | 39.840 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 11-10
Primary Columbium-Tantalum Tantalum Powder Wash
BPT 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 | 8.582 | 4.087 |
Zinc | 29.830 | 12.470 |
Ammonia (as N) | 2,724.400 | 1,198.000 |
Fluoride | 715.200 | 408.700 |
Total suspended solids | 837.800 | 398.500 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 11-11
Primary Columbium-Tantalum Consolidation and Casting Contact Cooling
BPT 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 |
Total suspended solids | 0.000 | 0.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Wis. Admin. Code Department of Natural Resources NR 274.112