ยง 421.282
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
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 practicable technology currently available:
(a) Tantalum alloy leach and rinse.
BPT Limitations 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
438.100
230.600
Lead
96.850
46.120
Nickel
442.800
292.900
Zinc
336.700
140.700
Tantalum
103.800
Total suspended solids
9,455.000
4,497.000
pH
(1)
(1)
1 Within the range of 7.5 to 10.0 at all times.
(b) Capacitor leach and rinse.
BPT Limitations 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
38.380
20.200
Lead
8.484
4.040
Nickel
38.780
25.650
Zinc
29.490
12.320
Tantalum
9.090
Total suspended solids
828.200
393.900
pH
(1)
(1)
1 Within the range of 7.5 to 10.0 at all times.
(c) Tantalum sludge leach and rinse.
BPT Limitations 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
390.100
205.300
Lead
86.230
41.060
Nickel
394.200
260.700
Zinc
299.700
125.200
Tantalum
92.390
Total suspended solids
8,417.000
4,003.000
pH
(1)
(1)
1 Within the range of 7.5 to 10.0 at all times.
(d) Tantalum powder acid wash and rinse.
BPT Limitations 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
0.665
0.350
Lead
0.147
0.070
Nickel
0.672
0.445
Zinc
0.511
0.214
Tantalum
0.158
Total suspended solids
14.350
6.825
pH
(1)
(1)
1 Within the range of 7.5 to 10.0 at all times.
(e) Leaching wet air pollution control.
BPT Limitations 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
9.272
4.880
Lead
2.050
0.976
Nickel
9.370
6.198
Zinc
7.125
2.977
Tantalum
2.196
Total suspended solids
200.100
95.160
pH
(1)
(1)
1 Within the range of 7.5 to 10.0 at all times.