Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System › Chapter NR 274 - Nonferrous metals manufacturing › Subchapter X - Primary Tungsten › Section NR 274.102 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

Current through June 24, 2024
Except as provided in
					 40 CFR 125.30
					 to
					 125.32, any
					 existing point source subject to this subchapter shall achieve the following
					 effluent limitations representing the degree of effluent reduction attainable
					 by application of BPT:
Table 10-1
Primary Tungsten Tungstic Acid Rinse
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of tungstic
								  acid produced
Lead
17.230
8.205
Zinc
59.900
25.030
Ammonia (as N)
5,469.000
2,404.000
Total suspended solids
1,682.000
800.000
pH
(1)
(1)
Table 10-2
Primary Tungsten Acid Leach Wet Air Pollution
					 Control
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of tungstic
								  acid produced
Lead
15.040
7.162
Zinc
52.280
21.840
Ammonia (as N)
4,773.000
2,098.000
Total suspended solids
1,468.000
698.300
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-3
Primary Tungsten Alkali Leach Wash
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of sodium
								  tungstate produced
Lead
0.000
0.000
Zinc
0.000
0.000
Ammonia (as N)
0.000
0.000
Total suspended solids
0.000
0.000
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-4
Primary Tungsten Alkali Leach Wash Condensate
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of sodium
								  tungstate produced
Lead
8.057
3.837
Zinc
28.011
11.700
Ammonia (as N)
2,557.000
1,124.000
Total suspended solids
786.200
374.100
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-5
Primary Tungsten Ion-Exchange Raffinate Commingled With
					 Other Process or Nonprocess Waters
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of ammonium
								  tungstate produced
Lead
37.160
17.700
Zinc
129.200
53.970
Ammonia (as N)
11,790.000
5,185.000
Total suspended solids
3,627.000
1,726.800
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-6
Primary Tungsten Ion-Exchange Raffinate Not Commingled With
					 Other Process or Nonprocess Waters
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of ammonium
								  tungstate produced
Lead
37.160
17.700
Zinc
129.200
53.970
Ammonia (as N) (1)
11,790,000
5,185,000
Total suspended solids
3,627.000
1,726.800
pH
(2)
(2)
(1) Within the range of 7.0 to 10.0 at all times.
(1) The limitation for ammonia does not apply if the mother
					 liquor feed to the ion exchange process or the raffinate from the ion exchange
					 process contains sulfates at concentrations exceeding 1,000 mg/l, this mother
					 liquor or raffinate is treated by ammonia stripping, and this mother liquor or
					 raffinate is not commingled with any other process or nonprocess waters prior
					 to steam stripping for ammonia removal.
(2) Within the range of 7.0 to 10.0 at all times.
Table 10-7
Primary Tungsten Calcium Tungstate Precipitate Wash
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of calcium
								  tungstate produced
Lead
31.000
14.760
Zinc
107.800
45.020
Ammonia (as N)
9,838.000
4,325.000
Total suspended solids
3,036.000
1,439.000
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-8
Primary Tungsten Crystallization and Drying of Ammonium
					 Paratungstate
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of ammonium
								  paratungstate produced
Lead
0.000
0.000
Zinc
0.000
0.000
Ammonia (as N)
0.000
0.000
Total suspended solids
0.000
0.000
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-9
Primary Tungsten Ammonium Paratungstate Conversion to
					 Oxides Wet Air Pollution Control
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of tungsten
								  oxide produced
Lead
11.600
5.300
Zinc
40.320
16.380
Ammonia (as N)
3,681.000
1,618.000
Total suspended solids
1,132.000
538.500
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-10
Primary Tungsten Ammonium Paratungstate Conversion to
					 Oxides Water of Formation
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of tungsten
								  oxide produced
Lead
0.026
0.013
Zinc
0.092
0.038
Ammonia (as N)
8.398
3.692
Total suspended solids
2.583
1.229
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-11
Primary Tungsten Reduction to Tungsten Wet Air Pollution
					 Control
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of tungsten
								  metal produced
Lead
12.940
6.161
Zinc
44.970
18.790
Ammonia (as N)
4,106.000
1,805.000
Total suspended solids
1,263.000
600.700
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-12
Primary Tungsten Reduction to Tungsten Water of
					 Formation
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of tungsten
								  metal produced
Lead
0.205
0.098
Zinc
0.714
0.298
Ammonia (as N)
65.190
28.660
Total suspended solids
20.050
9.536
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-13
Primary Tungsten Tungsten Powder Acid Leach and Wash
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of tungsten
								  metal produced
Lead
1.008
0.480
Zinc
3.504
1.464
Ammonia (as N)
319.900
140.700
Total suspended solids
98.400
46.800
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all times.
Table 10-14
Primary Tungsten Molybdenum Sulfide Precipitation Wet Air
					 Pollution Control
BPT Effluent Limitations
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
mg/kg (pounds per million pounds) of molybdenum
								  sulfide precipitated
Lead
0.000
0.000
Zinc
0.000
0.000
Ammonia (as N)
0.000
0.000
Total suspended solids
0.000
0.000
pH
(1)
(1)
(1) Within the range of 7.0 to 10.0 at all
					 times.