Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in secondary tantalum process wastewater introduced into a POTW shall not exceed the following values:
(a) Tantalum alloy leach and rinse.
PSNS for the Secondary Tantalum Subcategory
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of tantalum powder produced
|
| Copper | 295.200 | 140.700
|
| Lead | 64.570 | 29.980
|
| Nickel | 126.800 | 85.320
|
| Zinc | 235.200 | 96.850
|
| Tantalum | 103.800 | |
(b) Capacitor leach and rinse.
PSNS for the Secondary Tantalum Subcategory
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of tantalum powder produced from leaching
|
| Copper | 25.860 | 12.320
|
| Lead | 5.656 | 2.626
|
| Nickel | 11.110 | 7.474
|
| Zinc | 20.600 | 8.484
|
| Tantalum | 9.090 | |
(c) Tantalum sludge leach and rinse.
PSNS for the Secondary Tantalum Subcategory
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced
|
| Copper | 262.800 | 125.200
|
| Lead | 57.480 | 26.690
|
| Nickel | 112.900 | 75.960
|
| Zinc | 209.400 | 86.230
|
| Tantalum | 92.390 | |
(d) Tantalum powder acid wash and rinse.
PSNS for the Secondary Tantalum Subcategory
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of tantalum powder produced
|
| Copper | 0.448 | 0.214
|
| Lead | 0.098 | 0.046
|
| Nickel | 0.193 | 0.130
|
| Zinc | 0.357 | 0.147
|
| Tantalum | 0.158 | |
(e) Leaching wet air pollution control.
PSNS for the Secondary Tantalum Subcategory
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced
|
| Copper | 6.246 | 2.977
|
| Lead | 1.366 | 0.634
|
| Nickel | 2.684 | 1.806
|
| Zinc | 4.978 | 2.050
|
| Tantalum | 2.196 | |
authority: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) and the Water Quality Act of 1987 (the “Act”);
33 U.S.C. 1311,
1314,
c,
e,
and, 1316 (b) and
c, 1317 (b) and
c,
1318; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4
source: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.
cite as: 40 CFR 421.286