40 CFR § 421.143
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
June 9, 2020
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
Open Table
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds) of antimony contained in sodium antimonate product | ||
| Antimony | 30.150 | 13.440 |
| Arsenic | 21.720 | 9.687 |
| Mercury | 2.344 | 0.937 |
(b) Fouled Anolyte.
BAT Limitations for the Primary Antimony Subcategory
Open Table
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg pounds per million pounds of antimony metal produced by electrowinning | ||
| Antimony | 30.150 | 13.440 |
| Arsenic | 21.720 | 9.687 |
| Mercury | 2.344 | 0.937 |
(c) Cathode Antimony Wash Water
BAT Limitations for the Primary Antimony Subcategory
Open Table
| Pollutant of pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds) of antimony metal produced by electrowinning | ||
| Antimony | 60.310 | 26.870 |
| Arsenic | 43.430 | 19.370 |
| Mercury | 4.687 | 1.875 |
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