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 tungsten and cobalt process wastewater introduced into a POTW shall not exceed the following values:
(a) Tungsten detergent wash and rinse.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten scrap washed
--------------Copper........................................ 0.250 0.119Nickel........................................ 0.107 0.072Ammonia (as N)................................ 25.990 11.430Cobalt........................................ 0.538 0.236Tungsten...................................... 0.679 0.302------------------------------------------------------------------------
(b) Tungsten leaching acid.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten produced
--------------Copper........................................ 3.291 1.569Nickel........................................ 1.414 0.951Ammonia (as N)................................ 342.700 150.700Cobalt........................................ 7.096 3.111Tungsten...................................... 8.947 3.985------------------------------------------------------------------------
(c) Tungsten post-leaching wash and rinse.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten produced
--------------Copper........................................ 6.583 3.137Nickel........................................ 2.829 1.903Ammonia (as N)................................ 685.600 301.400Cobalt........................................ 14.194 6.223Tungsten...................................... 17.900 7.792------------------------------------------------------------------------
(d) Synthetic scheelite filtrate.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
synthetic scheelite
produced
--------------Copper........................................ 21.330 10.170Nickel........................................ 9.164 6.165Ammonia (as N)................................ 2,221.000 976.300Cobalt........................................ 45.984 20.160Tungsten...................................... 57.980 25.820------------------------------------------------------------------------
(e) Tungsten carbide leaching wet air pollution control.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten carbide scrap
leached
--------------Copper........................................ 2.241 1.068Nickel........................................ 0.963 0.648Ammonia (as N)................................ 233.400 102.600Cobalt........................................ 4.833 2.119Tungsten...................................... 6.093 2.714------------------------------------------------------------------------
(f) Tungsten carbide wash water.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten carbide
produced
--------------Copper........................................ 10.670 5.083Nickel........................................ 4.583 3.083Ammonia (as N)................................ 1,111.000 488.300Cobalt........................................ 22.999 10.083Tungsten...................................... 29.000 12.920------------------------------------------------------------------------
(g) Cobalt sludge leaching wet air pollution control.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
cobalt produced from
cobalt sludge
--------------Copper........................................ 45.800 21.830Nickel........................................ 19.680 13.240Ammonia (as N)................................ 4,770.000 2,097.000Cobalt........................................ 98.756 43.295Tungsten...................................... 124.500 55.460------------------------------------------------------------------------
(h) Crystallization decant.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
cobalt produced
--------------Copper........................................ 53.310 25.410Nickel........................................ 22.910 15.410Ammonia (as N)................................ 5,552,000 2,441.000Cobalt........................................ 114.954 50.397Tungsten...................................... 144.900 64.560------------------------------------------------------------------------
(i) Acid wash decant.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
cobalt produced
--------------Copper........................................ 24.400 11.630Nickel........................................ 10.490 7.053Ammonia (as N)................................ 2,541.000 1,117.000Cobalt........................................ 52.611 23.065Tungsten...................................... 66.340 29.550------------------------------------------------------------------------
(j) Cobalt hydroxide filtrate.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
cobalt produced
--------------Copper........................................ 72.510 34.560Nickel........................................ 31.160 20.960Ammonia (as N)................................ 7,551.000 3,320.000Cobalt........................................ 156.346 68.543Tungsten...................................... 197.100 87.800------------------------------------------------------------------------
(k) Cobalt hydroxide filter cake wash.
PSNS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
cobalt produced
--------------Copper........................................ 139.600 66.510Nickel........................................ 59.970 40.430Ammonia (as N)................................ 14,530.000 6,389.000Cobalt........................................ 300.094 131.932Tungsten...................................... 379.400 169.000------------------------------------------------------------------------ [50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31718, 31719, Aug. 3, 1990] Sec. 421.317 [Reserved]
Subpart AD_Secondary Uranium Subcategory
Source: 50 FR 38392, Sept. 20, 1985, unless otherwise noted.