421.314—Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a)
Tungsten detergent wash and rinse.
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of tungsten scrap washed |
Copper |
0.250 |
0.119 |
Nickel |
0.107 |
0.072 |
Ammonia (as N) |
25.990 |
11.430 |
Cobalt |
0.538 |
0.236 |
Tungsten |
0.679 |
0.302 |
Oil and grease |
1.950 |
1.950 |
Total suspended solids |
2.925 |
2.340 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
(b)
Tungsten leaching acid.
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of tungsten produced |
Copper |
3.291 |
1.569 |
Nickel |
1.414 |
0.951 |
Ammonia (as N) |
342.700 |
150.700 |
Cobalt |
7.096 |
3.111 |
Tungsten |
8.947 |
3.985 |
Oil and grease |
25.710 |
25.710 |
Total suspended solids |
38.570 |
30.850 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
(c)
Tungsten post-leaching wash and rinse.
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of tungsten produced |
Copper |
6.583 |
3.137 |
Nickel |
2.829 |
1.903 |
Ammonia (as N) |
685.600 |
301.400 |
Tungsten |
17.900 |
7.972 |
Cobalt |
14.194 |
6.223 |
Oil and grease |
51.430 |
51.430 |
Total suspended solids |
77.150 |
61.720 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
(d)
Synthetic scheelite filtrate.
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of synthetic scheelite produced |
Copper |
21.330 |
10.170 |
Nickel |
9.164 |
6.165 |
Ammonia (as N) |
2,221.000 |
976.300 |
Cobalt |
45.984 |
20.160 |
Tungsten |
57.980 |
25.820 |
Oil and grease |
166.600 |
166.600 |
Total suspended solids |
249.900 |
199.900 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
(e)
Tungsten carbide leaching wet air pollution control.
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of tungsten carbide scrap leached |
Copper |
2.241 |
1.068 |
Nickel |
0.963 |
0.648 |
Ammonia (as N) |
233.400 |
102.600 |
Cobalt |
4.833 |
2.119 |
Tungsten |
6.093 |
2.714 |
Oil and grease |
17.510 |
17.510 |
Total suspended solids |
26.270 |
21.010 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
(f)
Tungsten carbide wash water.
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of tungsten carbide produced |
Copper |
10.670 |
5.083 |
Nickel |
4.583 |
3.083 |
Ammonia (as N) |
1,111.000 |
488.300 |
Cobalt |
22.999 |
10.083 |
Tungsten |
29.000 |
12.920 |
Oil and grease |
83.330 |
83.330 |
Total suspended solids |
125.000 |
100.000 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
(g)
Cobalt sludge leaching wet air pollution control.
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of cobalt produced from cobalt sludge |
Copper |
45.80 |
21.83 |
Nickel |
19.68 |
13.24 |
Ammonia (as N) |
4,770.00 |
2,097.00 |
Cobalt |
98.756 |
43.295 |
Tungsten |
124.50 |
55.46 |
Oil and grease |
357.80 |
357.80 |
Total suspended solids |
536.70 |
429.40 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
(h)
Crystallization decant.
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of cobalt produced |
Copper |
53.310 |
25.410 |
Nickel |
22.910 |
15.410 |
Ammonia (as N) |
5,552.000 |
2,441.000 |
Cobalt |
114.954 |
50.397 |
Tungsten |
144.900 |
64.560 |
Oil and grease |
416.500 |
416.500 |
Total suspended solids |
624.800 |
499.800 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of cobalt produced |
Copper |
24.400 |
11.630 |
Nickel |
10.490 |
7.053 |
Ammonia (as N) |
2,541.000 |
1,117.000 |
Cobalt |
52.611 |
23.065 |
Tungsten |
66.340 |
29.550 |
Oil and grease |
190.600 |
190.600 |
Total suspended solids |
285.900 |
228.700 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
(j)
Cobalt hydroxide filtrate.
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of cobalt produced |
Copper |
72.510 |
34.560 |
Nickel |
31.160 |
20.960 |
Ammonia (as N) |
7,551.000 |
3,320.000 |
Cobalt |
156.346 |
68.543 |
Tungsten |
197.100 |
87.800 |
Oil and grease |
566.500 |
566.500 |
Total suspended solids |
849.700 |
679.800 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
(k)
Cobalt hydroxide filter cake wash.
NSPS for the Secondary Tungsten and Cobalt Subcategory
|
mg/kg (pounds per million pounds) of cobalt produced |
Copper |
139.600 |
66.510 |
Nickel |
59.970 |
40.340 |
Ammonia (as N) |
14,530.000 |
6,389.000 |
Cobalt |
300.094 |
131.932 |
Tungsten |
379.400 |
169.000 |
Oil and grease |
1,090.000 |
1,090.000 |
Total suspended solids |
1,636,000 |
1,308.000 |
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times. |
[50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31715, 31716, Aug. 3, 1990]