Collapse to view only § 421.280 - Applicability: Description of the secondary tantalum subcategory.

§ 421.280 - Applicability: Description of the secondary tantalum subcategory.

The provisions of this subpart are applicable to discharges resulting from the production of tantalum at secondary tantalum facilities.

§ 421.281 - Specialized definitions.

For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.

§ 421.282 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

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 practicable technology currently available:

(a) Tantalum alloy leach and rinse.

BPT 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 Copper438.100230.600 Lead96.85046.120 Nickel442.800292.900 Zinc336.700140.700 Tantalum103.800Total suspended solids9,455.0004,497.000 pH( 1)( 1)

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

(b) Capacitor leach and rinse.

BPT 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 Copper38.38020.200 Lead8.4844.040 Nickel38.78025.650 Zinc29.49012.320 Tantalum9.090Total suspended solids828.200393.900 pH( 1)( 1)

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

(c) Tantalum sludge leach and rinse.

BPT 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 Copper390.100205.300 Lead86.23041.060 Nickel394.200260.700 Zinc299.700125.200 Tantalum92.390Total suspended solids8,417.0004,003.000 pH( 1)( 1)

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

(d) Tantalum powder acid wash and rinse.

BPT 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 Copper0.6650.350 Lead0.1470.070 Nickel0.6720.445 Zinc0.5110.214 Tantalum0.158Total suspended solids14.3506.825 pH( 1)( 1)

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

(e) Leaching wet air pollution control.

BPT 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 Copper9.2724.880 Lead2.0500.976 Nickel9.3706.198 Zinc7.1252.977 Tantalum2.196Total suspended solids200.10095.160 pH( 1)( 1)

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

§ 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 Copper295.200140.700 Lead64.57029.980 Nickel126.80085.320 Zinc235.20096.850 Tantalum103.800

(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 Copper25.86012.320 Lead5.6562.626 Nickel11.1107.474 Zinc20.6008.484 Tantalum9.090

(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 Copper262.800125.200 Lead57.48026.690 Nickel112.90075.960 Zinc209.40086.230 Tantalum92.390

(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 Copper0.4480.214 Lead0.0980.046 Nickel0.1930.130 Zinc0.3570.147 Tantalum0.158

(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 Copper6.2462.977 Lead1.3660.634 Nickel2.6841.806 Zinc4.9782.050 Tantalum2.196

§ 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 Copper295.200140.700 Lead64.57029.980 Nickel126.80085.320 Zinc235.20096.850 Tantalum103.800Total suspended solids3,459.0002,767.000 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 Copper25.86012.320 Lead5.6562.626 Nickel11.1107.474 Zinc20.6008.484 Tantalum9.090Total suspended solids303.000242.400 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 Copper262.800125.200 Lead57.48026.690 Nickel112.90075.960 Zinc209.40086.230 Tantalum92.390Total suspended solids3,080.0002,464.000 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 Copper0.4480.214 Lead0.0980.046 Nickel0.1930.130 Zinc0.3570.147 Tantalum0.158Total suspended solids5.2504.200 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 Copper6.2462.977 Lead1.3660.634 Nickel2.6841.806 Zinc4.9782.050 Tantalum2.196Total suspended solids73.20058.560 pH( 1)( 1)

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

§ 421.285 - [Reserved]

§ 421.286 - Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in secondary tantalum process wastewater introduced into a POTW shall not exceed the following values:

(a) Tantalum alloy leach and rinse.

PSNS 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 Copper295.200140.700 Lead64.57029.980 Nickel126.80085.320 Zinc235.20096.850 Tantalum103.800

(b) Capacitor leach and rinse.

PSNS 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 Copper25.86012.320 Lead5.6562.626 Nickel11.1107.474 Zinc20.6008.484 Tantalum9.090

(c) Tantalum sludge leach and rinse.

PSNS 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 Copper262.800125.200 Lead57.48026.690 Nickel112.90075.960 Zinc209.40086.230 Tantalum92.390

(d) Tantalum powder acid wash and rinse.

PSNS 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 Copper0.4480.214 Lead0.0980.046 Nickel0.1930.130 Zinc0.3570.147 Tantalum0.158

(e) Leaching wet air pollution control.

PSNS 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 Copper6.2462.977 Lead1.3660.634 Nickel2.6841.806 Zinc4.9782.050 Tantalum2.196

§ 421.287 - [Reserved]