Wis. Admin. Code Department of Natural Resources NR 274.313

Current through October 28, 2024
Section NR 274.313 - 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 31-12

Secondary Tungsten and Cobalt Tungsten Detergent Wash and Rinse

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 31-13

Secondary Tungsten and Cobalt Tungsten Leaching Acid

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 31-14

Secondary Tungsten and Cobalt Tungsten Post Leaching Wash and Rinse

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Cobalt

14.194

6.223

Tungsten

17.900

7.972

Table 31-15

Secondary Tungsten and Cobalt Synthetic Scheelite Filtrate

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 31-16

Secondary Tungsten and Cobalt Tungsten Carbide Leaching Wet Air Pollution Control

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 31-17

Secondary Tungsten and Cobalt Tungsten Carbide Wash Water

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 31-18

Secondary Tungsten and Cobalt Cobalt Sludge Leaching Wet Air Pollution Control

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of cobalt produced from cobalt sludge

Copper

45.800

21.830

Nickel

19.680

13.240

Ammonia (as N)

4,770.000

2,097.000

Cobalt

98.756

43.295

Tungsten

124.500

55.460

Table 31-19

Secondary Tungsten and Cobalt Crystallization Decant

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 31-20

Secondary Tungsten and Cobalt Acid Wash Decant

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 31-21

Secondary Tungsten and Cobalt Cobalt Hydroxide Filtrate

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 31-22

Secondary Tungsten and Cobalt Cobalt Hydroxide Filter Cake Wash

BAT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

131.094

Tungsten

379.400

169.000

Wis. Admin. Code Department of Natural Resources NR 274.313

Cr. Register, March, 1991, No. 423, eff. 4-1-91.