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) Tin smelter SO2 scrubber.
BAT Limitations for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of crude
tapped tin produced
--------------Arsenic....................................... 12.790 5.703Lead.......................................... 2.575 1.196Iron.......................................... 11.040 5.611Tin........................................... 3.495 2.024------------------------------------------------------------------------
(b) Dealuminizing rinse.
BAT Limitations for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
dealuminized scrap
produced
--------------Lead.......................................... 0.010 0.005Cyanide (total)............................... 0.007 0.003Fluoride...................................... 1.225 0.697Tin........................................... 0.013 0.008------------------------------------------------------------------------
(c) Tin mud acid neutralization filtrate.
BAT Limitations for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
neutralized dewatered
tin mud produced
--------------Lead.......................................... 1.413 0.656Cyanide (total)............................... 1.009 0.404Fluoride...................................... 176.600 100.400Tin........................................... 1.918 1.110------------------------------------------------------------------------
(d) Tin hydroxide wash.
BAT Limitations for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of tin
hydroxide washed
--------------Lead.......................................... 3.347 1.554Cyanide (total)............................... 2.391 0.956Fluoride...................................... 418.400 237.900Tin........................................... 4.542 2.630------------------------------------------------------------------------
(e) Spent electrowinning solution from new scrap.
BAT Limitations for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
cathode tin produced
--------------Lead.......................................... 4.704 2.184Cyanide (total)............................... 3.360 1.344Fluoride...................................... 588.000 334.300Tin........................................... 6.384 3.696------------------------------------------------------------------------
(f) Spent electrowinning solution from municipal solid waste.
BAT Limitations for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of MSW
scrap used as raw
material
--------------Lead.......................................... 0.033 0.015Cyanide (total)............................... 0.024 0.010
Fluoride...................................... 4.165 2.368Tin........................................... 0.045 0.026------------------------------------------------------------------------
(g) Tin hydroxide supernatant from scrap.
BAT Limitations for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of tin
metal recovered from
scrap
--------------Lead.......................................... 15.580 7.233Cyanide (total)............................... 11.130 4.451Fluoride...................................... 1,947.000 1,107.000Tin........................................... 21.140 21.240------------------------------------------------------------------------
(h) Tin hydroxide supernatant from plating solutions and sludges.
BAT Limitations for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of tin
metal recovered from
plating solutions and
sludges
--------------Lead.......................................... 32.20 14.95Cyanide (total)............................... 23.00 9.20Fluoride...................................... 4,025.00 2,289.00Tin........................................... 43.70 25.30------------------------------------------------------------------------
(i) Tin hydroxide filtrate.
BAT Limitations for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of tin
metal produced
--------------Lead.......................................... 7.012 3.256Cyanide (total)............................... 5.009 2.004Fluoride...................................... 876.500 498.400Tin........................................... 9.517 5.510------------------------------------------------------------------------