Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 273 - Nonferrous metals forming and metal powders
Subchapter IX - Zirconium-Hafnium
Section NR 273.093 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
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 BAT:
Table 9-12
Zirconium-Hafnium
Extrusion Press Hydraulic Fluid Leakage
|
BAT Effluent Limitations |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of zirconium-hafnium extruded |
|
|
Chromium |
0.104 |
0.043 |
|
Cyanide |
0.069 |
0.029 |
|
Nickel |
0.455 |
0.301 |
|
Ammonia |
31.6 |
13.9 |
|
Fluoride |
14.1 |
6.26 |
Table 9-13
Zirconium-Hafnium
Heat Treatment Contact Cooling Water
|
BAT Effluent Limitations |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of zirconium-hafnium heat treated |
|
|
Chromium |
0.015 |
0.006 |
|
Cyanide |
0.010 |
0.004 |
|
Nickel |
0.066 |
0.044 |
|
Ammonia |
4.57 |
2.01 |
|
Fluoride |
2.04 |
0.906 |
Table 9-14
Zirconium-Hafnium
Surface Treatment Spent Baths
|
BAT Effluent Limitations |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of zirconium-hafnium surface treated |
|
|
Chromium |
0.150 |
0.061 |
|
Cyanide |
0.099 |
0.041 |
|
Nickel |
0.653 |
0.432 |
|
Ammonia |
45.3 |
20.0 |
|
Fluoride |
20.3 |
8.98 |
Table 9-15
Zirconium-Hafnium
Surface Treatment Rinse
|
BAT Effluent Limitations |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of zirconium-hafnium surface treated |
|
|
Chromium |
0.391 |
0.160 |
|
Cyanide |
0.258 |
0.107 |
|
Nickel |
1.71 |
1.13 |
|
Ammonia |
119 |
52.1 |
|
Fluoride |
52.9 |
23.5 |
Table 9-16
Zirconium-Hafnium
Alkaline Cleaning Spent Baths
|
BAT Effluent Limitations |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of zirconium-hafnium alkaline cleaned |
|
|
Chromium |
0.704 |
0.288 |
|
Cyanide |
0.464 |
0.192 |
|
Nickel |
3.07 |
2.03 |
|
Ammonia |
214 |
93.8 |
|
Fluoride |
95.2 |
42.3 |
Table 9-17
Zirconium-Hafnium
Alkaline Cleaning Rinse
|
BAT Effluent Limitations |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of zirconium-hafnium alkaline cleaned |
|
|
Chromium |
1.38 |
0.565 |
|
Cyanide |
0.911 |
0.377 |
|
Nickel |
6.03 |
3.99 |
|
Ammonia |
419 |
184 |
|
Fluoride |
187 |
82.9 |
Table 9-18
Zirconium-Hafnium
Sawing or Grinding Spent Emulsions
|
BAT Effluent Limita |
tions |
|
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of zirconium-hafnium sawed or ground with emulsions |
|
|
Chromium |
0.124 |
0.051 |
|
Cyanide |
0.082 |
0.034 |
|
Nickel |
0.540 |
0.357 |
|
Ammonia |
37.5 |
16.50 |
|
Fluoride |
16.7 |
7.42 |
Table 9-19
Zirconium-Hafnium
Molten Salt Rinse
|
BAT Effluent Limitations |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of zirconium-hafnium treated with molten salt |
|
|
Chromium |
0.333 |
0.136 |
|
Cyanide |
0.220 |
0.091 |
|
Nickel |
1.45 |
0.960 |
|
Ammonia |
101 |
44.3 |
|
Fluoride |
45.0 |
20.0 |
Table 9-20
Zirconium-Hafnium
Sawing or Grinding Contact Cooling Water
|
BAT Effluent Limitations |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of zirconium-hafnium sawed or ground with contact cooling water |
|
|
Chromium |
0.142 |
0.058 |
|
Cyanide |
0.093 |
0.039 |
|
Nickel |
0.617 |
0.408 |
|
Ammonia |
42.8 |
18.8 |
|
Fluoride |
19.1 |
8.48 |
Table 9-21
Zirconium-Hafnium
Sawing or Grinding Rinse
|
BAT Effluent Limitations |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of sawed or ground zirconium-hafnium rinsed |
|
|
Chromium |
0.079 |
0.033 |
|
Cyanide |
0.052 |
0.022 |
|
Nickel |
0.346 |
0.229 |
|
Ammonia |
24.0 |
10.6 |
|
Fluoride |
10.7 |
4.75 |
Table 9-22
Zirconium-Hafnium
Inspection Testing Wastewater
|
BAT Effluent Limitations |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
Pollutant or pollutant property |
mg/off-kg (pounds per million off-pounds) of zirconium-hafnium tested |
|
|
Chromium |
0.007 |
0.003 |
|
Cyanide |
0.005 |
0.002 |
|
Nickel |
0.030 |
0.020 |
|
Ammonia |
2.06 |
0.903 |
|
Fluoride |
0.917 |
0.407 |
