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) Sand drying wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 0.210 0.085Cyanide (total)............................... 0.114 0.045Lead.......................................... 0.159 0.074Nickel........................................ 0.312 0.210Ammonia (as N)................................ 75.710 33.280------------------------------------------------------------------------
(b) Sand chlorination off-gas wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 16.080 6.521Cyanide (total)............................... 8.694 3.478Lead.......................................... 12.170 5.651Nickel........................................ 23.910 16.080Ammonia (as N)................................ 5,795.000 2,547.000------------------------------------------------------------------------
(c) Sand chlorination area-vent wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 3.154 1.279Cyanide (total)............................... 1.705 0.682Lead.......................................... 2.387 1.108Nickel........................................ 4.688 3.154Ammonia (as N)................................ 1,136.000 499.500------------------------------------------------------------------------
(d) SiCl4 purification wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 2.774 1.125Cyanide (total)............................... 1.500 0.600Lead.......................................... 2.099 0.975Nickel........................................ 4.124 2.774Ammonia (as N)................................ 999.500 439.400------------------------------------------------------------------------
(e) Feed makeup wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 2.103 0.852Cyanide (total)............................... 1.137 0.455Lead.......................................... 1.591 0.739Nickel........................................ 3.126 2.103Ammonia (as N)................................ 757.500 333.000------------------------------------------------------------------------
(f) Iron extraction (MIBK) steam stripper bottoms.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 0.830 0.337Cyanide (total)............................... 0.449 0.180Lead.......................................... 0.628 0.292Nickel........................................ 1.234 0.830Ammonia (as N)................................ 299.100 131.500------------------------------------------------------------------------
(g) Zirconium filtrate.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 14.350 5.819Cyanide (total)............................... 7.758 3.103Lead.......................................... 10.860 5.043Nickel........................................ 21.330 14.350Ammonia (as N)................................ 5,171.000 2,273.00------------------------------------------------------------------------
(h) Hafnium filtrate.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 0.000 0.000Cyanide (total)............................... 0.000 0.000Lead.......................................... 0.000 0.000Nickel........................................ 0.000 0.000Ammonia (as N)................................ 0.000 0.000------------------------------------------------------------------------
(i) Calcining caustic wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 3.329 1.350Cyanide (total)............................... 1.799 0.720Lead.......................................... 2.519 1.170Nickel........................................ 4.948 3.329Ammonia (as N)................................ 1,199.000 527.200------------------------------------------------------------------------
(j) Pure chlorination wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium and hafnium
produced
--------------Chromium (total).............................. 14.180 5.748Cyanide (total)............................... 7.663 3.065Lead.......................................... 10.730 4.981Nickel........................................ 21.070 14.180Ammonia (as N)................................ 5,108.000 2,245.000------------------------------------------------------------------------
(k) Reduction area-vent wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium and hafnium
produced
--------------Chromium (total).............................. 1.364 0.553Cyanide (total)............................... 0.737 0.295Lead.......................................... 1.032 0.479Nickel........................................ 2.027 1.364Ammonia (as N)................................ 491.300 216.000------------------------------------------------------------------------
(l) Magnesium recovery off-gas wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium and hafnium
produced
--------------Chromium (total).............................. 7.671 3.110Cyanide (total)............................... 4.147 1.659Lead.......................................... 5.805 2.695Nickel........................................ 11.400 7.671Ammonia (as N)................................ 2,764.000 1,215.000------------------------------------------------------------------------
(m) Magnesium recovery area-vent wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium and hafnium
produced
--------------Chromium (total).............................. 4.262 1.728Cyanide (total)............................... 2.304 0.921Lead.......................................... 3.225 1.497Nickel........................................ 6.335 4.262Ammonia (as N)................................ 1,535.000 675.000------------------------------------------------------------------------
(n) Zirconium chip crushing wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium and hafnium
produced
--------------Chromium (total).............................. 0.000 0.000Cyanide (total)............................... 0.000 0.000Lead.......................................... 0.000 0.000Nickel........................................ 0.000 0.000Ammonia (as N)................................ 0.000 0.000------------------------------------------------------------------------
(o) Acid leachate from zirconium metal production.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of pure
zirconium produced
--------------Chromium (total).............................. 10.900 4.420Cyanide (total)............................... 5.893 2.357Lead.......................................... 8.250 3.831Nickel........................................ 16.210 10.900Ammonia (as N)................................ 3,928.000 1,674.000------------------------------------------------------------------------
(p) Acid leachate from zirconium alloy production.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium contained in
alloys produced
--------------Chromium (total).............................. 5.835 2.366Cyanide (total)............................... 3.154 1.262Lead.......................................... 4.416 2.050Nickel........................................ 8.674 5.835Ammonia (as N)................................ 2,102.000 895.000------------------------------------------------------------------------
(q) Leaching rinse water from zirconium metal production.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of pure
zirconium produced
--------------Chromium (total).............................. 21.810 8.840Cyanide (total)............................... 11.790 4.715Lead.......................................... 16.500 7.661Nickel........................................ 32.410 21.810Ammonia (as N)................................ 7,856.000 3,453.000------------------------------------------------------------------------
(r) Leaching rinse water from zirconium alloy production.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium contained in
alloys produced
--------------Chromium (total).............................. 0.292 0.118Cyanide (total)............................... 0.158 0.063Lead.......................................... 0.221 0.103Nickel........................................ 0.434 0.292Ammonia (as N)................................ 105.200 46.240------------------------------------------------------------------------