Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System › Chapter NR 255 - Battery manufacturing › Subchapter VIII - Zinc Subcategory › Section NR 255.72 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable

Current through June 24, 2024
(1)
				  Except as provided in
				  40 CFR 125.30
				  to
				  125.32, any
				  existing source subject to this subchapter shall achieve the following effluent
				  limitations representing the degree of effluent reduction attainable by the
				  application of BAT:
Table 125
Wet Amalgamated Powder Anodes
BAT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of zinc
English units -
lb/million lbs of zinc
Chromium
0.24
0.099
Mercury
0.14
0.056
Silver
0.23
0.093
Zinc
0.80
0.34
Manganese
0.37
0.16
Table 126
Gelled Amalgam Anodes
BAT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of zinc
English units -
lb/million lbs of zinc
Chromium
0.030
0.012
Mercury
0.017
0.007
Silver
0.028
0.012
Zinc
0.099
0.042
Manganese
0.046
0.020
Table 127
Zinc Oxide Formed Anodes
BAT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of zinc
English units -
lb/million lbs of zinc
Chromium
9.53
3.90
Mercury
5.42
2.17
Silver
8.89
3.68
Zinc
31.64
13.22
Manganese
14.74
6.28
Table 128
Electrodeposited Anodes
BAT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of zinc deposited
English units -
lb/million lbs of zinc deposited
Chromium
94.47
38.65
Mercury
53.68
21.47
Silver
88.03
36.50
Zinc
313.46
130.97
Manganese
146.00
62.26
Table 129
Silver Powder Formed Cathodes
BAT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of silver applied
English units -
lb/million lbs of silver applied
Chromium
13.07
5.35
Mercury
7.43
2.97
Silver
12.18
5.05
Zinc
43.36
18.12
Manganese
20.20
8.61
Table 130
Silver Oxide Powder Formed Cathodes
BAT
POLLUTANT OR POLLUTANT PROPERTY
MAXIMUM FOR ANY 1 DAY
MAXIMUM FOR MONTHLY AVERAGE
Metric units -
mg/kg of silver applied
English units -
lb/million lbs of silver applied
Chromium
8.73
3.57
Mercury
4.96
1.99
Silver
8.14
3.37
Zinc
28.96
12.11
Manganese
13.50
5.76
Table 131
Silver Peroxide Cathodes
BAT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of silver applied
English units -
lb/million lbs of silver applied
Chromium
2.09
0.87
Mercury
1.19
9.48
Silver
1.95
0.81
Zinc
6.95
2.90
Manganese
3.24
1.38
Table 132
Nickel Impregnated Cathodes
BAT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of nickel applied
English units -
lb/million lbs of nickel applied
Chromium
88.0
36.0
Mercury
50.0
20.0
Nickel
384.0
254.0
Silver
82.0
34.0
Zinc
292.0
122.0
Manganese
136.0
58.0
Table 133
Miscellaneous Wastewater Streams
BAT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -
mg/kg of cells produced
English units -
lb/million lbs of cells produced
Chromium
0.57
0.23
Cyanide
0.38
0.16
Mercury
0.32
0.13
Nickel
2.48
1.64
Silver
0.53
0.22
Zinc
1.88
0.79
Manganese
0.88
0.37
Table 134
Silver Etch
BAT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units -mg/kg of silver processed
English units - lb/million lbs of silver
								  processed
Chromium
3.27
1.34
Mercury
1.86
0.74
Silver
3.05
1.26
Zinc
10.86
4.54
Manganese
5.06
2.16
Table 135
Silver Peroxide Production
BAT
POLLUTANT OR
POLLUTANT PROPERTY
MAXIMUM FOR
ANY 1 DAY
MAXIMUM FOR
MONTHLY AVERAGE
Metric units - mg/kg of silver in silver peroxide
								  produced
English units - lb/million lbs of silver in
								  silver peroxide produced
Chromium
3.48
1.42
Mercury
1.96
0.79
Silver
3.24
1.34
Zinc
11.56
4.83
Manganese
5.36
2.29
Table 136
Silver Powder Production
BAT
POLLUTANT OR
MAXIMUM FOR
MAXIMUM FOR
POLLUTANT PROPERTY
ANY 1 DAY
MONTHLY AVERAGE
Metric units -mg/kg of silver powder
								  produced
English units -lb/million lbs of silver powder
								  produced
Chromium
1.41
0.58
Mercury
0.80
0.32
Silver
1.32
0.55
Zinc
4.69
1.96
Manganese
2.18
0.93
(2) There may
				  be no discharge allowance for process wastewater pollutants from any battery
				  manufacturing operation other than those battery manufacturing operations
				  listed in tables 125 to 136.