View all text of Subpart Z [§ 421.280 - § 421.287]
§ 421.284 - Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Tantalum alloy leach and rinse.
NSPS 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 | Total suspended solids | 3,459.000 | 2,767.000 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(b) Capacitor leach and rinse.
NSPS 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 | Total suspended solids | 303.000 | 242.400 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(c) Tantalum sludge leach and rinse.
NSPS 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 | Total suspended solids | 3,080.000 | 2,464.000 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(d) Tantalum powder acid wash and rinse.
NSPS 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 | Total suspended solids | 5.250 | 4.200 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(e) Leaching wet air pollution control.
NSPS 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 | Total suspended solids | 73.200 | 58.560 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.