421.114—Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a)
Subpart K—Concentrate Digestion Wet Air Pollution Control.
NSPS
|
mg/kg (pounds per million pounds) of concentrate digested |
| Lead |
.174 |
.081 |
| Zinc |
.635 |
.261 |
| Ammonia (as N) |
82.910 |
36.450 |
| Fluoride |
21.770 |
12.440 |
| Total suspended solids |
9.330 |
7.464 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(b)
Subpart K—Solvent Extraction Raffinate.
NSPS
|
mg/kg (pounds per million pounds) of concentrate digested |
| Lead |
2.592 |
1.203 |
| Zinc |
9.442 |
3.888 |
| Ammonia (as N) |
1,233.000 |
542.5000 |
| Fluoride |
324.000 |
185.100 |
| Total Suspended Solids |
138.900 |
111.100 |
| pH |
(1) |
(1) |
| AA 1 Within the range of 7.5 to 10.0 at all times. |
(c)
Subpart K—Solvent Extraction Wet Air Pollution Control.
NSPS
|
mg/kg (pounds per million pounds) of concentrate digested |
| Lead |
.069 |
.032 |
| Zinc |
.251 |
.103 |
| Ammonia (as N) |
32.790 |
14.420 |
| Fluoride |
8.610 |
4.920 |
| Total suspended solids |
3.690 |
2.952 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(d)
Subpart K—Precipitation and Filtration.
NSPS
|
mg/kg (pounds per million pounds) of concentrate digested |
| Lead |
3.833 |
1.780 |
| Zinc |
13.960 |
5.750 |
| Ammonia (as N) |
1,825.000 |
802.200 |
| Fluoride |
479.100 |
273.800 |
| Total suspended solids |
205.400 |
164.300 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(e)
Subpart K—Precipitation and Filtration Wet Air Pollution Control.
NSPS
|
mg/kg (pounds per million pounds) of concentrate digested |
| Lead |
1.778 |
.826 |
| Zinc |
6.478 |
2.668 |
| Ammonia (as N) |
846.600 |
372.200 |
| Fluoride |
222.300 |
127.000 |
| Total suspended solids |
95.270 |
76.210 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(f)
Subpart K—Tantalum Salt Drying.
NSPS
|
mg/kg (pounds per million pounds) of tantalum salt dried |
| Lead |
16.950 |
7.871 |
| Zinc |
61.750 |
25.430 |
| Ammonia (as N) |
8,070.000 |
3,548.000 |
| Fluoride |
2,119.000 |
1,211.000 |
| Total suspended solids |
908.200 |
726.500 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(g)
Subpart K—Oxides Calcining Wet Air Pollution Control.
NSPS
|
mg/kg (pounds per million pounds) of columbium-tantalum oxide dried |
| Lead |
1.076 |
.500 |
| Zinc |
3.919 |
1.614 |
| Ammonia (as N) |
512.200 |
225.200 |
| Fluoride |
134.500 |
76.840 |
| Total suspended solids |
57.630 |
46.110 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(h)
Subpart K—Reduction of Tantalum Salt to Metal.
NSPS
|
mg/kg (pounds per million pounds) of tantalum salt reduced |
| Lead |
46.500 |
21.590 |
| Zinc |
169.400 |
69.750 |
| Ammonia (as N) |
22,140.000 |
9,732.000 |
| Fluoride |
5,813.000 |
3,322.000 |
| Total suspended solids |
2,491.000 |
1,993.000 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(i)
Subpart K—Reduction of Tantalum Salt to Metal Wet Air Pollution Control.
NSPS
|
mg/kg (pounds per million pounds) of tantalum salt reduced |
| Lead |
.572 |
.266 |
| Zinc |
2.084 |
.858 |
| Ammonia (as N) |
272.400 |
119.700 |
| Fluoride |
71.510 |
40.860 |
| Total suspended solids |
30.650 |
24.520 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(j)
Subpart K—Tantalum Powder Wash.
NSPS
|
mg/kg (pounds per million pounds) of tantalum powder washed |
| Lead |
5.721 |
2.656 |
| Zinc |
20.840 |
8.582 |
| Ammonia (as N) |
2,724.000 |
1,198.000 |
| Fluoride |
715.200 |
408.700 |
| Total suspended solids |
306.500 |
245.200 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(k)
Subpart K—Consolidation and Casting Contact Cooling.
NSPS
|
mg/kg (pounds per million pounds) of columbium or tantalum cast or consolidated |
| Lead |
.000 |
.000 |
| Zinc |
.000 |
.000 |
| Ammonia (as N) |
.000 |
.000 |
| Fluoride |
.000 |
.000 |
| Total suspended solids |
.000 |
.000 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
[49 FR 8817, Mar. 8, 1984, as amended at 49 FR 29795, July 24, 1984; 50 FR 12253, Mar. 28, 1985]