Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Tungsten detergent wash and rinse.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of tungsten scrap washed | ||
Copper | 0.371 | 0.195 |
Nickel | 0.374 | 0.248 |
Ammonia (as N) | 25.990 | 11.430 |
Cobalt | 0.768 | 0.337 |
Tungsten | 1.357 | 0.542 |
Oil and grease | 3.900 | 2.340 |
Total suspended solids | 7.995 | 3.803 |
pH | (1) | (1) |
(b) Tungsten leaching acid.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of tungsten produced | ||
Copper | 4.885 | 2.571 |
Nickel | 4.937 | 3.265 |
Ammonia (as N) | 342.700 | 150.700 |
Cobalt | 10.130 | 4.448 |
Tungsten | 17.890 | 7.147 |
Oil and grease | 51.420 | 30.850 |
Total suspended solids | 105.400 | 50.140 |
pH | (1) | (1) |
(c) Tungsten post-leaching wash and rinse.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of tungsten produced | ||
Copper | 9.772 | 5.143 |
Nickel | 9.875 | 6.532 |
Ammonia (as N) | 685.600 | 301.400 |
Cobalt | 20.263 | 8.897 |
Tungsten | 35.800 | 14.300 |
Oil and grease | 102.900 | 61.720 |
Total suspended solids | 210.900 | 100.300 |
pH | (1) | (1) |
(d) Synthetic scheelite filtrate.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of synthetic scheelite produced | ||
Copper | 31.660 | 16.660 |
Nickel | 31.990 | 21.160 |
Ammonia (as N) | 2,221.000 | 976.300 |
Cobalt | 65.644 | 28.824 |
Tungsten | 116.000 | 46.320 |
Oil and grease | 333.200 | 200.000 |
Total suspended solids | 683.100 | 324.900 |
pH | (1) | (1) |
(e) Tungsten carbide leaching wet air pollution control.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of tungsten carbide scrap leached | ||
Copper | 3.327 | 1.751 |
Nickel | 3.362 | 2.224 |
Ammonia (as N) | 233.400 | 102.600 |
Cobalt | 6.899 | 3.029 |
Tungsten | 12.190 | 4.868 |
Oil and grease | 35.020 | 21.010 |
Total suspended solids | 71.790 | 34.150 |
pH | (1) | (1) |
(f) Tungsten carbide wash water.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of tungsten carbide produced | ||
Copper | 15.830 | 8.333 |
Nickel | 16.000 | 10.580 |
Ammonia (as N) | 1,111.000 | 488.300 |
Cobalt | 32.832 | 14.416 |
Tungsten | 58.000 | 23.170 |
Oil and grease | 166.700 | 100.000 |
Total suspended solids | 341.700 | 162.500 |
pH | (1) | (1) |
(g) Cobalt sludge leaching wet air pollution control.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of cobalt produced from cobalt sludge | ||
Copper | 67.990 | 35.780 |
Nickel | 68.700 | 45.440 |
Ammonia (as N) | 4,770.000 | 2,097.000 |
Cobalt | 140.977 | 61.901 |
Tungsten | 249.000 | 99.470 |
Oil and grease | 715.600 | 429.400 |
Total suspended solids | 1,467.000 | 697.700 |
pH | (1) | (1) |
(h) Crystallization decant.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of cobalt produced | ||
Copper | 79.140 | 41.650 |
Nickel | 79.970 | 52.900 |
Ammonia (as N) | 5,552.000 | 2,441.000 |
Cobalt | 164.101 | 72.055 |
Tungsten | 289.900 | 115.800 |
Oil and grease | 833.000 | 499.800 |
Total suspended solids | 1,708.000 | 812.200 |
pH | (1) | (1) |
(i) Acid wash decant.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of cobalt produced | ||
Copper | 36.220 | 19.060 |
Nickel | 36.600 | 24.210 |
Ammonia (as N) | 2,541.000 | 1,117.000 |
Cobalt | 75.104 | 32.977 |
Tungsten | 132.700 | 52.990 |
Oil and grease | 381.300 | 228.800 |
Total suspended solids | 781.600 | 371.700 |
pH | (1) | (1) |
(j) Cobalt hydroxide filtrate.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of cobalt produced | ||
Copper | 107.600 | 56.650 |
Nickel | 108.800 | 71.940 |
Ammonia (as N) | 7,551.000 | 3,320.000 |
Cobalt | 223.189 | 97.999 |
Tungsten | 394.300 | 157.500 |
Oil and grease | 1,133.000 | 679.800 |
Total suspended solids | 2,323.000 | 1,105.000 |
pH | (1) | (1) |
(k) Cobalt hydroxide filter cake wash.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|
mg/kg (pounds per million pounds) of cobalt produced | ||
Copper | 207.200 | 109.100 |
Nickel | 209.400 | 138.500 |
Ammonia (as N) | 14,530.000 | 6,389.000 |
Cobalt | 429.598 | 188.631 |
Tungsten | 758.900 | 303.100 |
Oil and grease | 2,181.000 | 1,309.000 |
Total suspended solids | 4,471.000 | 2,126.000 |
pH | (1) | (1) |
[50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31713, 31714, Aug. 3, 1990]