40 CFR 421.284 - Standards of performance for new sources.

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§ 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)

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)

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)

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)

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)

1 Within the range of 7.5 to 10.0 at all times.

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