Code of Federal Regulations (alpha)

CFR /  Title 40  /  Part 421  /  Sec. 421.143 Effluent limitations guidelines representing the degreeavailable technology

economically achievable.

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) Sodium Antimonate Autoclave Wastewater.

BAT 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.................................... 30.150 13.440Arsenic..................................... 21.720 9.687Mercury..................................... 2.344 0.937------------------------------------------------------------------------

(b) Fouled Anolyte.

BAT 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.................................... 30.150 13.440Arsenic..................................... 21.720 9.687Mercury..................................... 2.344 0.937------------------------------------------------------------------------

(c) Cathode Antimony Wash Water

BAT Limitations for the Primary Antimony Subcategory------------------------------------------------------------------------

Maximum for

Pollutant of pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per million

pounds) of antimony metal

produced by electrowinning

---------------Antimony.................................... 60.310 26.870Arsenic..................................... 43.430 19.370Mercury..................................... 4.687 1.875------------------------------------------------------------------------