technology currently available.
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 practicable control technology currently available:
(a) Sodium Antimonate Autoclave Wastewater.
BPT Limitations for the Primary Antimony Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per million
pounds) of antimony
contained in sodium
antimonate product
---------------Antimony.................................... 44.840 20.000Arsenic..................................... 32.650 14.530Mercury..................................... 3.906 1.562Total suspended solids...................... 640.600 304.700pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(b) Fouled anolyte.
BPT Limitations for the Primary Antimony Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per million
pounds) of antimony metal
produced by electrowinning
---------------Antimony.................................... 44.840 20.000Arsenic..................................... 32.650 14.530Mercury..................................... 3.906 1.562Total suspended solids...................... 640.600 304.700pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(c) Cathode Antimony Wash Water.
BPT Limitations for the Primary Antimony Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per million
pounds) of antimony metal
produced by electrowinning
---------------Antimony.................................... 89.680 40.000Arsenic..................................... 65.310 29.060Mercury..................................... 7.812 3.125Total suspended solids...................... 1,281.000 609.300pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.