Wis. Admin. Code Department of Natural Resources NR 274.282

Current through November 25, 2024
Section NR 274.282 - Effluent limitations 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 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 28-1

Secondary Tantalum Tantalum Alloy Leach and Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 28-2

Secondary Tantalum Capacitor Leach and Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 28-3

Secondary Tantalum Tantalum Sludge Leach and Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 28-4

Secondary Tantalum Tantalum Powder Acid Wash and Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

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

Table 28-5

Secondary Tantalum Leaching 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 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

Wis. Admin. Code Department of Natural Resources NR 274.282

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