Title 40
SECTION 421.283
421.283 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
§ 421.283 Effluent limitations guidelines 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 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 available technology economically achievable:
(a) Tantalum alloy leach and rinse.
BAT Limitations for the Secondary Tantalum Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| 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 | |
(b) Capacitor leach and rinse.
BAT Limitations for the Secondary Tantalum Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| 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 | |
(c) Tantalum sludge leach and rinse.
BAT Limitations for the Secondary Tantalum Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| 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 | |
(d) Tantalum powder acid wash and rinse.
BAT Limitations for the Secondary Tantalum Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| 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 | |
(e) Leaching wet air pollution control.
BAT Limitations for the Secondary Tantalum Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| 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 | |