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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tantalum powder produced
--------------Copper........................................ 295.200 140.700Lead.......................................... 64.570 29.980Nickel........................................ 126.800 85.320Zinc.......................................... 235.200 96.850Tantalum...................................... 103.800 ...........------------------------------------------------------------------------
(b) Capacitor leach and rinse.
PSNS for the Secondary Tantalum Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tantalum powder produced
from leaching
--------------Copper........................................ 25.860 12.320Lead.......................................... 5.656 2.626Nickel........................................ 11.110 7.474Zinc.......................................... 20.600 8.484Tantalum...................................... 9.090 ...........------------------------------------------------------------------------
(c) Tantalum sludge leach and rinse.
PSNS for the Secondary Tantalum Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
equivalent pure tantalum
powder produced
--------------Copper........................................ 262.800 125.200Lead.......................................... 57.480 26.690
Nickel........................................ 112.900 75.960Zinc.......................................... 209.400 86.230Tantalum...................................... 92.390 ...........------------------------------------------------------------------------
(d) Tantalum powder acid wash and rinse.
PSNS for the Secondary Tantalum Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tantalum powder produced
--------------Copper........................................ 0.448 0.214Lead.......................................... 0.098 0.046Nickel........................................ 0.193 0.130Zinc.......................................... 0.357 0.147Tantalum...................................... 0.158 ...........------------------------------------------------------------------------
(e) Leaching wet air pollution control.
PSNS for the Secondary Tantalum Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
equivalent pure tantalum
powder produced
--------------Copper........................................ 6.246 2.977Lead.......................................... 1.366 0.634Nickel........................................ 2.684 1.806Zinc.......................................... 4.978 2.050Tantalum...................................... 2.196 ...........------------------------------------------------------------------------ Sec. 421.287 [Reserved]
Subpart AA_Secondary Tin Subcategory
Source: 50 FR 38376, Sept. 20, 1985, unless otherwise noted.