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 3-3
Secondary Aluminum Smelting Scrap Drying Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per 1,000,000 pounds) of scrap dried | |
Lead | 0.000 | 0.000 |
Zinc | 0.000 | 0.000 |
Aluminum | 0.000 | 0.000 |
Ammonia (as N) | 0.000 | 0.000 |
Table 3-4
Secondary Aluminum Smelting Scrap Screening and Milling
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per 1,000,000 pounds) of aluminum scrap screened and milled | |
Lead | 0.000 | 0.000 |
Zinc | 0.000 | 0.000 |
Aluminum | 0.000 | 0.000 |
Ammonia (as N) | 0.000 | 0.000 |
Table 3-5
Secondary Aluminum Smelting Dross Washing
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per 1,000,000 pounds) of dross washed | |
Lead | 3.043 | 1.413 |
Zinc | 11.090 | 4.565 |
Aluminum | 66.410 | 29.450 |
Ammonia (as N) | 1,449.000 | 636.900 |
Table 3-6
Secondary Aluminum Smelting Demagging Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per 1,000,000 pounds) of aluminum demagged | |
Lead | 0.216 | 0.100 |
Zinc | 0.786 | 0.324 |
Aluminum | 4.711 | 2.090 |
Ammonia (as N) | 102.800 | 45.180 |
Table 3-7
Secondary Aluminum Smelting Delacquering Wet Air Pollution Control
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per 1,000,000 pounds) of aluminum delacquered | |
Lead | 0.093 | 0.043 |
Zinc | 0.340 | 0.140 |
Aluminum | 2.035 | 0.903 |
Ammonia (as N) | 44.389 | 19.514 |
Total phenolics (4-AAP) (1) | 0.004 |
(1) At or before the commingling of delacquering scrubber liquor blowdown with other process or nonprocess waters.
Table 3-8
Secondary Aluminum Smelting Direct Chill Casting Contact
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per 1, of aluminu | 000,000 pounds) m cast |
Lead | 0.372 | 0.173 |
Zinc | 1.356 | 0.558 |
Aluminum | 8.120 | 3.602 |
Ammonia (as N) | 177.200 | 77.880 |
Table 3-9
Secondary Aluminum Smelting Ingot Conveyor Contact Cooling When Chlorine Demagging Wet Air Pollution Control Is Not Practiced On Site
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per 1,000,000 pounds) of aluminum cast | |
Lead | 0.019 | 0.009 |
Zinc | 0.068 | 0.028 |
Aluminum | 0.409 | 0.182 |
Ammonia (as N) | 8.931 | 3.926 |
Table 3-10
Secondary Aluminum Smelting Ingot Conveyor Contact Cooling When Chlorine Demagging Wet Air Pollution Control Is Practiced On Site
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per 1,000,000 pounds) of aluminum cast | |
Lead | 0.000 | 0.000 |
Zinc | 0.000 | 0.000 |
Aluminum | 0.000 | 0.000 |
Ammonia (as N) | 0.000 | 0.000 |
Table 3-11
Secondary Aluminum Smelting Stationary Casting Contact Cooling
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per 1,000,000 pounds) of aluminum cast | |
Lead | 0.000 | 0.000 |
Zinc | 0.000 | 0.000 |
Aluminum | 0.000 | 0.000 |
Ammonia (as N) | 0.000 | 0.000 |
Table 3-12
Secondary Aluminum Smelting Shot Casting Contact Cooling
BAT Effluent Limitations | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per 1,000,000 pounds) of aluminum cast | |
Lead | 0.000 | 0.000 |
Zinc | 0.000 | 0.000 |
Aluminum | 0.000 | 0.000 |
Ammonia (as N) | 0.000 | 0.000 |
Wis. Admin. Code Department of Natural Resources NR 274.033