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 primary columbium-tantalum process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart K--Concentrate Digestion Wet Air Pollution Control.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
concentrate digested
--------------Lead.......................................... .174 .081Zinc.......................................... .635 .261Ammonia (as N)................................ 82.910 36.450Fluoride...................................... 21.770 12.440------------------------------------------------------------------------
(b) Subpart K--Solvent Extraction Raffinate.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per million
pounds) of concentrate
digested
--------------Lead......................................... 2.592 1.203Zinc......................................... 9.442 3.888Ammonia (as N)............................... 1,233.000 542.5000Fluoride..................................... 324.000 185.100------------------------------------------------------------------------
(c) Subpart K--Solvent Extraction Wet Air Pollution Control.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
concentrate digested
--------------Lead.......................................... .069 .032Zinc.......................................... .251 .103Ammonia (as N)................................ 32.790 14.420Fluoride...................................... 8.610 4.920------------------------------------------------------------------------
(d) Subpart K--Precipitation and Filtration.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
concentrate digested
--------------Lead.......................................... 3.833 1.780Zinc.......................................... 13.960 5.750Ammonia (as N)................................ 1,825.000 802.200Fluoride...................................... 479.100 273.800------------------------------------------------------------------------
(e) Subpart K--Precipitation and Filtration Wet Air Pollution Control.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
concentrate digested
--------------Lead.......................................... 1.778 .826Zinc.......................................... 6.478 2.668Ammonia (as N)................................ 846.600 372.200Fluoride...................................... 222.300 127.000------------------------------------------------------------------------
(f) Subpart K--Tantalum Salt Drying.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tantalum salt dried
--------------Lead.......................................... 16.950 7.871Zinc.......................................... 61.750 25.430Ammonia (as N)................................ 8,070.000 3,548.000Fluoride...................................... 2,119.000 1,211.000------------------------------------------------------------------------
(g) Subpart K--Oxides Calcining Wet Air Pollution Control.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
columbium-tantalum oxide
dried
--------------Lead.......................................... 1.076 .500Zinc.......................................... 3.919 1.614Ammonia (as N)................................ 512.200 225.200Fluoride...................................... 134.500 76.840------------------------------------------------------------------------
(h) Subpart K--Reduction of Tantalum Salt to Metal.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tantalum salt reduced
--------------Lead.......................................... 46.500 21.590Zinc.......................................... 169.400 69.750Ammonia (as N)................................ 22,140.000 9,732.000Fluoride...................................... 5,813.000 3,322.000------------------------------------------------------------------------
(i) Subpart K--Reduction of Tantalum Salt to Metal Wet Air Pollution Control.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tantalum salt reduced
--------------Lead.......................................... .572 .266Zinc.......................................... 2.084 .858Ammonia (as N)................................ 272.400 119.700Fluoride...................................... 71.510 40.860------------------------------------------------------------------------
(j) Subpart K--Tantalum Powder Wash.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tantalum powder washed
--------------Lead.......................................... 5.721 2.656Zinc.......................................... 20.840 8.582Ammonia (as N)................................ 2,724.000 1,198.000Fluoride...................................... 715.200 408.700------------------------------------------------------------------------
(k) Subpart K--Consolidation and Casting Contact Cooling.
PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
columbium or tantalum
cast or consolidated
--------------Lead.......................................... .000 .000Zinc.......................................... .000 .000Ammonia (as N)................................ .000 .000Fluoride...................................... .000 .000------------------------------------------------------------------------ [49 FR 8817, Mar. 8, 1984, as amended at 50 FR 12253, Mar. 28, 1985] Sec. 421.117 [Reserved]