Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 274 - Nonferrous metals manufacturing
Subchapter XXVIII - Secondary Tantalum
Section NR 274.283 - 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 28-6
Secondary Tantalum Tantalum Alloy Leach and Rinse
|
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 produced |
|
|
Copper |
295.200 |
140.700 |
|
Lead |
64.570 |
29.980 |
|
Nickel |
126.800 |
85.320 |
|
Zinc |
235.200 |
96.850 |
|
Tantalum |
103.800 |
|
Table 28-7
Secondary Tantalum Capacitor Leach and Rinse
|
BAT Effluent Limitations |
||
|
Maximum for 1 day |
any Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/kg (pounds per million pounds) of tantalum powder produced from leaching |
|
|
Copper |
25.860 |
12.320 |
|
Lead |
5.656 |
2.626 |
|
Nickel |
11.110 |
7.474 |
|
Zinc |
20.600 |
8.484 |
|
Tantalum |
9.090 |
|
Table 28-8
Secondary Tantalum Tantalum Sludge Leach and Rinse
|
BAT Effluent Limitations |
||
|
Maximum for 1 day |
any Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced |
|
|
Copper |
262.800 |
125.200 |
|
Lead |
57.480 |
26.690 |
|
Nickel |
112.900 |
75.960 |
|
Zinc |
209.400 |
86.230 |
|
Tantalum |
92.390 |
|
Table 28-9
Secondary Tantalum Tantalum Powder Acid Wash and Rinse
|
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 produced |
|
|
Copper |
0.448 |
0.214 |
|
Lead |
0.098 |
0.046 |
|
Nickel |
0.193 |
0.130 |
|
Zinc |
0.357 |
0.147 |
|
Tantalum |
0.158 |
|
Table 28-10
Secondary Tantalum Leaching Wet Air Pollution Control
|
BAT Effluent Limitation |
s |
|
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced |
|
|
Copper |
6.246 |
2.977 |
|
Lead |
1.366 |
0.634 |
|
Nickel |
2.684 |
1.806 |
|
Zinc |
4.978 |
2.050 |
|
Tantalum |
2.196 |
|
