Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 274 - Nonferrous metals manufacturing
Subchapter III - Secondary Aluminum Smelting
Section NR 274.033 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
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 |
