Loading (50 kb)...'
(continued)
synthetic
scheelite
produced
-------------------------
Copper........................................ 31.660 16.660
Nickel........................................ 31.990 21.160
Ammonia (as N)................................ 2,221.000 976.300
Cobalt........................................ 65.644 28.824
Tungsten...................................... 116.000 46.320
Oil and grease................................ 333.200 200.000
Total suspended solids........................ 683.100 324.900
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(e) Tungsten carbide leaching wet air pollution control.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tungsten
carbide
scrap
leached
-------------------------
Copper........................................ 3.327 1.751
Nickel........................................ 3.362 2.224
Ammonia (as N)................................ 233.400 102.600
Cobalt........................................ 6.899 3.029
Tungsten...................................... 12.190 4.868
Oil and grease................................ 35.020 21.010
Total suspended solids........................ 71.790 34.150
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(f) Tungsten carbide wash water.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tungsten
carbide
produced
-------------------------
Copper........................................ 15.830 8.333
Nickel........................................ 16.000 10.580
Ammonia (as N)................................ 1,111.000 488.300
Cobalt........................................ 32.832 14.416
Tungsten...................................... 58.000 23.170
Oil and grease................................ 166.700 100.000
Total suspended solids........................ 341.700 162.500
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(g) Cobalt sludge leaching wet air pollution control.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
cobalt
produced
from cobalt
sludge
-------------------------
Copper........................................ 67.990 35.780
Nickel........................................ 68.700 45.440
Ammonia (as N)................................ 4,770.000 2,097.000
Cobalt........................................ 140.977 61.901
Tungsten...................................... 249.000 99.470
Oil and grease................................ 715.600 429.400
Total suspended solids........................ 1,467.000 697.700
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(h) Crystallization decant.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
cobalt
produced
-------------------------
Copper........................................ 79.140 41.650
Nickel........................................ 79.970 52.900
Ammonia (as N)................................ 5,552.000 2,441.000
Cobalt........................................ 164.101 72.055
Tungsten...................................... 289.900 115.800
Oil and grease................................ 833.000 499.800
Total suspended solids........................ 1,708.000 812.200
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(i) Acid wash decant.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
cobalt
produced
-------------------------
Copper........................................ 36.220 19.060
Nickel........................................ 36.600 24.210
Ammonia (as N)................................ 2,541.000 1,117.000
Cobalt........................................ 75.104 32.977
Tungsten...................................... 132.700 52.990
Oil and grease................................ 381.300 228.800
Total suspended solids........................ 781.600 371.700
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(j) Cobalt hydroxide filtrate.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
cobalt
produced
-------------------------
Copper........................................ 107.600 56.650
Nickel........................................ 108.800 71.940
Ammonia (as N)................................ 7,551.000 3,320.000
Cobalt........................................ 223.189 97.999
Tungsten...................................... 394.300 157.500
Oil and grease................................ 1,133.000 679.800
Total suspended solids........................ 2,323.000 1,105.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(k) Cobalt hydroxide filter cake wash.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
cobalt
produced
-------------------------
Copper........................................ 207.200 109.100
Nickel........................................ 209.400 138.500
Ammonia (as N)................................ 14,530.000 6,389.000
Cobalt........................................ 429.598 188.631
Tungsten...................................... 758.900 303.100
Oil and grease................................ 2,181.000 1,309.000
Total suspended solids........................ 4,471.000 2,126.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
[50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31713, 31714, Aug. 3, 1990]
§ 421.313 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
top
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Tungsten detergent wash and rinse.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(b) Tungsten leaching acid.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(c) Tungsten post-leaching wash and rinse.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(d) Synthetic scheelite filtrate.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(e) Tungsten carbide leaching wet air pollution control.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(f) Tungsten carbide wash water.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(g) Cobalt sludge leaching wet air pollution control.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
cobalt
produced
from cobalt
sludge
-------------------------
Copper........................................ 45.80 21.83
Nickel........................................ 19.68 13.24
Ammonia (as N)................................ 4,770.00 2,097.00
Cobalt........................................ 98.756 43.295
Tungsten...................................... 124.50 55.46
------------------------------------------------------------------------
(h) Crystallization decant.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(i) Acid wash decant.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(j) Cobalt hydroxide filtrate.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(k) Cobalt hydroxide filter cake wash.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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........................................ 300.094 131.932
Tungsten...................................... 379.400 169.000
------------------------------------------------------------------------
[50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31714, 31715, Aug. 3, 1990]
§ 421.314 Standards of performance for new sources.
top
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Tungsten detergent wash and rinse.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
Oil and grease................................ 1.950 1.950
Total suspended solids........................ 2.925 2.340
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(b) Tungsten leaching acid.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
Oil and grease................................ 25.710 25.710
Total suspended solids........................ 38.570 30.850
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(c) Tungsten post-leaching wash and rinse.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
Tungsten...................................... 17.900 7.972
Cobalt........................................ 14.194 6.223
Oil and grease................................ 51.430 51.430
Total suspended solids........................ 77.150 61.720
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(d) Synthetic scheelite filtrate.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
Oil and grease................................ 166.600 166.600
Total suspended solids........................ 249.900 199.900
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(e) Tungsten carbide leaching wet air pollution control.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
Oil and grease................................ 17.510 17.510
Total suspended solids........................ 26.270 21.010
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(f) Tungsten carbide wash water.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
Oil and grease................................ 83.330 83.330
Total suspended solids........................ 125.000 100.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(g) Cobalt sludge leaching wet air pollution control.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
cobalt
produced
from cobalt
sludge
-------------------------
Copper........................................ 45.80 21.83
Nickel........................................ 19.68 13.24
Ammonia (as N)................................ 4,770.00 2,097.00
Cobalt........................................ 98.756 43.295
Tungsten...................................... 124.50 55.46
Oil and grease................................ 357.80 357.80
Total suspended solids........................ 536.70 429.40
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(h) Crystallization decant.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
Oil and grease................................ 416.500 416.500
Total suspended solids........................ 624.800 499.800
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(i) Acid wash decant.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
Oil and grease................................ 190.600 190.600
Total suspended solids........................ 285.900 228.700
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(j) Cobalt hydroxide filtrate.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
Oil and grease................................ 566.500 566.500
Total suspended solids........................ 849.700 679.800
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(k) Cobalt hydroxide filter cake wash.
NSPS for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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........................................ 300.094 131.932
Tungsten...................................... 379.400 169.000
Oil and grease................................ 1,090.000 1,090.000
Total suspended solids........................ 1,636,000 1,308.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
[50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31715, 31716, Aug. 3, 1990]
§ 421.315 Pretreatment standards for existing sources.
top
Except as provided in 40 CFR 403.7, any existing source subject to this subpart which introduces polutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in secondary tungsten and cobalt process wastewater introduced into a POTW shall not exceed the following values:
(a) Tungsten detergent wash and rinse.
PSES for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(b) Tungsten leaching acid.
PSES for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
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
------------------------------------------------------------------------
(c) Tungsten post-leaching wash and rinse.PSES for the Secondary Tungsten and Cobalt Subcategory (continued)