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) Tungsten detergent wash and rinse.
BAT Limitations 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.
BAT Limitations 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.
BAT Limitations 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 7.972------------------------------------------------------------------------
(d) Synthetic scheelite filtrate.
BAT Limitations 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.
BAT Limitations 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.
BAT Limitations 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.
BAT Limitations 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........................................ 45.80 21.83Nickel........................................ 19.68 13.24Ammonia (as N)................................ 4,770.00 2,097.00Cobalt........................................ 98.756 43.295Tungsten...................................... 124.50 55.46------------------------------------------------------------------------
(h) Crystallization decant.
BAT Limitations 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.
BAT Limitations 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.
BAT Limitations 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.
BAT Limitations 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 40.340Ammonia (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 31714, 31715, Aug. 3, 1990]