40 Protection of Environment 26 2003-07-01 2003-07-01 false Standards of performance for new sources. 421.284 Section 421.284 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Secondary Tantalum Subcategory
ยง 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) AA1 Within the range of 7.5 to 10.0 at all times.