Loading (50 kb)...'
(continued)
Fluoride...................................... 16.210 9.214
------------------------------------------------------------------------
(b) Roaster SO2 scrubber.
BAT Limitations for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per/
million
pounds) of
molybdenum
sulfide
roasted
-------------------------
Arsenic....................................... 2.334 1.041
Lead.......................................... 0.470 0.218
Nickel........................................ 0.924 0.621
Selenium...................................... 1.377 0.621
Molybdenum.................................... [Reserved] [Reserved]
Ammonia (as N)................................ 223.800 98.390
Fluoride...................................... 58.770 33.410
------------------------------------------------------------------------
(c) Molybdic oxide leachate.
BAT Limitations for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per/
million
pounds) of
molybdenum
contained
in molybdic
oxide
leached
-------------------------
Arsenic....................................... 16.100 7.182
Lead.......................................... 3.244 1.506
Nickel........................................ 6.371 4.286
Selenium...................................... 9.499 4.286
Molybdenum.................................... [Reserved] [Reserved]
Ammonia (as N)................................ 1,544.000 678.800
Fluoride...................................... 405.400 230.500
------------------------------------------------------------------------
(d) Hydrogen reduction furnace scrubber.
BAT Limitations for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per/
million
pounds) of
molybdenum
metal
powder
produced
-------------------------
Arsenic....................................... 3.183 1.420
Lead.......................................... 0.641 0.298
Nickel........................................ 1.260 0.847
Selenium...................................... 1.878 0.847
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 305.300 134.200
Fluoride...................................... 80.150 45.570
------------------------------------------------------------------------
(e) Depleted rhenium scrubbing solution.
BAT Limitations for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per/
million
pounds) of
molybdenum
sulfide
roasted
-------------------------
Arsenic....................................... 0.995 0.444
Lead.......................................... 0.201 0.093
Nickel........................................ 0.394 0.265
Selenium...................................... 0.587 0.265
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 95.440 41.960
Fluoride...................................... 25.060 14.250
------------------------------------------------------------------------
[50 FR 38355, Sept. 20, 1985, as amended at 55 FR 31701, 31702, Aug. 3, 1990]
§ 421.214 Standards of performance for new sources.
top
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Molybdenum sulfide leachate.
NSPS for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
sulfide
leached
-------------------------
Arsenic....................................... 0.644 0.287
Lead.......................................... 0.130 0.060
Nickel........................................ 0.255 0.171
Selenium...................................... 0.380 0.171
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 61.720 27.130
Fluoride...................................... 16.210 9.214
Total suspended solids........................ 6.945 5.556
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(b) Roaster SO2 scrubber.
NSPS for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
sulfide
roasted
-------------------------
Arsenic....................................... 2.334 1.041
Lead.......................................... 0.470 0.218
Nickel........................................ 0.924 0.621
Selenium...................................... 1.377 0.621
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 223.800 98.390
Fluoride...................................... 58.770 33.410
Total suspended solids........................ 25.190 20.150
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(c) Molybdic oxide leachate.
NSPS for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
contained
in molybdic
oxide
leached
-------------------------
Arsenic....................................... 16.100 7.182
Lead.......................................... 3.244 1.506
Nickel........................................ 6.371 4.286
Selenium...................................... 9.499 4.286
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 1,544.000 678.800
Fluoride...................................... 405.400 230.500
Total suspended solids........................ 173.800 139.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(d) Hydrogen reduction furnace scrubber.
NSPS for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
metal
powder
produced
-------------------------
Arsenic....................................... 3.183 1.420
Lead.......................................... 0.641 0.298
Nickel........................................ 1.260 0.847
Selenium...................................... 1.878 0.847
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 305.300 134.200
Fluoride...................................... 80.150 45.570
Total suspended solids........................ 34.350 27.480
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(e) Depleted rhenium scrubbing solution.
NSPS for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
sulfide
roasted
-------------------------
Arsenic....................................... 0.995 0.444
Lead.......................................... 0.201 0.093
Nickel........................................ 0.394 0.265
Selenium...................................... 0.587 0.265
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 95.440 41.960
Fluoride...................................... 25.060 14.250
Total suspended solids........................ 10.740 8.592
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
[50 FR 38355, Sept. 20, 1985, as amended at 55 FR 31702, Aug. 3, 1990]
§ 421.215 [Reserved]
top
§ 421.216 Pretreatment standards for new sources.
top
Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in primary molybdenum and rhenium process wastewater introduced into a POTW shall not exceed the following values:
(a) Molybdenum sulfide leachate.
PSNS for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
sulfide
leached
-------------------------
Arsenic....................................... 0.644 0.287
Lead.......................................... 0.130 0.060
Nickel........................................ 0.255 0.171
Selenium...................................... 0.380 0.171
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 61.720 27.130
Fluoride...................................... 16.210 9.214
------------------------------------------------------------------------
(b) Roaster SO2 scrubber.
PSNS for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
sulfide
roasted
-------------------------
Arsenic....................................... 2.334 1.041
Lead.......................................... 0.470 0.218
Nickel........................................ 0.924 0.621
Selenium...................................... 1.377 0.621
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 223.800 98.390
Fluoride...................................... 58.770 33.410
------------------------------------------------------------------------
(c) Molybdic oxide leachate.
PSNS for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
contained
in molybdic
oxide
leached
-------------------------
Arsenic....................................... 16.100 7.182
Lead.......................................... 3.244 1.506
Nickel........................................ 6.371 4.286
Selenium...................................... 9.499 4.286
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 1,544.000 678.800
Fluoride...................................... 405.400 230.500
------------------------------------------------------------------------
(d) Hydrogen reduction furnace scrubber.
PSNS for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
metal
powder
produced
-------------------------
Arsenic....................................... 3.183 1.420
Lead.......................................... 0.641 0.298
Nickel........................................ 1.260 0.847
Selenium...................................... 1.878 0.847
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 305.300 134.200
Fluoride...................................... 80.150 45.570
------------------------------------------------------------------------
(e) Depleted rhenium scrubbing solution.
PSNS for the Primary Molybdenum and Rhenium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
sulfide
roasted
-------------------------
Arsenic....................................... 0.995 0.444
Lead.......................................... 0.201 0.093
Nickel........................................ 0.394 0.265
Selenium...................................... 0.587 0.265
Molybdenum.................................... [Reserved] [Reserved].
Ammonia (as N)................................ 95.440 41.960
Fluoride...................................... 25.060 14.250
------------------------------------------------------------------------
[50 FR 38355, Sept. 20, 1985, as amended at 55 FR 31702, 31703, Aug. 3, 1990]
§ 421.217 [Reserved]
top
Subpart T—Secondary Molybdenum and Vanadium Subcategory
top
Source: 50 FR 38357, Sept. 20, 1985, unless otherwise noted.
§ 421.220 Applicability: Description of the secondary molybdenum and vanadium subcategory.
top
The provisions of this subpart are applicable to discharges resulting from the production of molybdenum or vanadium by secondary molybdenum and vanadium facilities.
§ 421.221 Specialized definitions.
top
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.222 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
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 practicable technology currently available:
(a) Leach tailings.
BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
technical
grade
molybdenum
plus
vanadium
plus pure
grade
molybdenum
produced
-------------------------
Arsenic....................................... 40.778 18.145
Chromium...................................... 8.585 3.512
Lead.......................................... 8.195 3.902
Nickel........................................ 37.460 24.779
Iron.......................................... 23.410 11.902
Molybdenum.................................... [Reserved] [Reserved]
Ammonia (as N)................................ 8078.000 3551.000
Total Suspended Solids........................ 799.950 380.460
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(b) Molybdenum filtrate solvent extraction raffinate.
BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
technical
grade
molybdenum
plus
vanadium
plus pure
grade
molybdenum
produced
-------------------------
Arsenic....................................... 121.720 54.162
Chromium...................................... 25.625 10.483
Lead.......................................... 24.460 11.648
Nickel........................................ 111.819 73.964
Iron.......................................... 69.887 35.526
Molybdenum.................................... [Reserved] [Reserved]
Ammonia (as N)................................ 24114.000 10600.000
Total Suspended Solids........................ 2387.800 1135.660
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(c) Vanadium decomposition wet air pollution control.
BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
vanadium
produced by
decompositi
on
-------------------------
Arsenic....................................... 0.000 0.000
Chromium...................................... 0.000 0.000
Lead.......................................... 0.000 0.000
Nickel........................................ 0.000 0.000
Iron.......................................... 0.000 0.000
Molybdenum.................................... 0.000 0.000
Ammonia (as N)................................ 0.000 0.000
Total suspended solids........................ 0.000 0.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(d) Molybdenum drying wet air pollution control.
BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
produced
-------------------------
Arsenic....................................... 0.000 0.000
Chromium...................................... 0.000 0.000
Lead.......................................... 0.000 0.000
Nickel........................................ 0.000 0.000
Iron.......................................... 0.000 0.000
Molybdenum.................................... 0.000 0.000
Ammonia (as N)................................ 0.000 0.000
Total suspended solids........................ 0.000 0.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(e) Pure Grade Molybdenum.
BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
pure
molybdenum
produced
---------------------------
Arsenic..................................... 48.655 21.650
Chromium.................................... 10.243 4.190
Lead........................................ 9.778 4.656
Nickel...................................... 44.698 29.566
Iron........................................ 27.936 14.201
Molybdenum.................................. [Reserved] [Reserved]
Ammonia (as N).............................. 9638.000 4237.000
Total Suspended Solids...................... 954.480 453.960
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
[50 FR 38357, Sept. 20, 1985, as amended at 55 FR 31703, Aug. 3, 1990]
§ 421.223 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) Leach Tailings.
BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
technical
grade
molybdenum
plus
vanadium
plus pure
grade
molybdenum
produced
-------------------------
Arsenic....................................... 27.120 12.097
Chromium...................................... 7.219 2.927
Lead.......................................... 5.463 2.536
Nickel........................................ 10.731 7.219
Iron.......................................... 23.413 11.902
Molybdenum.................................... [Reserved] [Reserved]
Ammonia (as N)................................ 8078.000 3551.000
------------------------------------------------------------------------
(b) Molybdenum filtrate solvent extraction raffinate.
BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
technical
grade
molybdenum
plus
vanadium
plus pure
grade
molybdenum
produced
-------------------------
Arsenic....................................... 80.952 36.108
Chronium...................................... 21.548 8.736
Lead.......................................... 16.306 7.571
Nickel........................................ 32.031 21.548
Iron.......................................... 69.887 35.526
Molybdenum.................................... [Reserved] [Reserved]
Ammonia (as N)................................ 24114.000 10600.000
------------------------------------------------------------------------
(c) Vanadium decomposition wet air pollution control.
BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
vanadium
produced by
decompositi
on
-------------------------
Arsenic....................................... 0.000 0.000
Chromium...................................... 0.000 0.000
Lead.......................................... 0.000 0.000
Nickel........................................ 0.000 0.000
Iron.......................................... 0.000 0.000
Molybdenum.................................... 0.000 0.000
Ammonia (as N)................................ 0.000 0.000
------------------------------------------------------------------------
(d) Molybdenum drying wet air pollution control.
BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
produced
-------------------------
Arsenic....................................... 0.000 0.000
Chromium...................................... 0.000 0.000
Lead.......................................... 0.000 0.000
Nickel........................................ 0.000 0.000
Iron.......................................... 0.000 0.000
Molybdenum.................................... 0.000 0.000
Ammonia (as N)................................ 0.000 0.000
------------------------------------------------------------------------
(e) Pure Grade Molybdenum.
BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
pure
molybdenum
produced
-------------------------
Arsenic....................................... 32.359 14.434
Chromium...................................... 8.614 3.492
Lead.......................................... 6.518 3.026
Nickel........................................ 12.804 8.614
Iron.......................................... 27.936 14.201
Molybdenum.................................... [Reserved] [Reserved]
Ammonia (as N)................................ 9638.000 4237.000
------------------------------------------------------------------------
[50 FR 38357, Sept. 20, 1985, as amended at 55 FR 31703, 31704, Aug. 3, 1990]
§ 421.224 Standards of performance for new sources.
top
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Leach tailings.
NSPS for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
technical
grade
molybdenum
plus
vanadium
plus pure
grade
molybdenum
produced
-------------------------
Arsenic....................................... 27.120 12.097
Chromium...................................... 7.219 2.927
Lead.......................................... 5.463 2.536
Nickel........................................ 10.731 7.219
Iron.......................................... 23.413 11.902
Molybdenum.................................... [Reserved] [Reserved]
Ammonia (as N)................................ 8078.000 3551.000
Total Suspended Solids........................ 292.665 234.132
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(b) Molybdenum filtrate solvent extraction raffinate.
NSPS for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
technical
grade
molybdenum
plus
vanadium
plus pure
grade
molybdenum
produced
-------------------------
Arsenic....................................... 80.952 36.108
Chromium...................................... 21.548 8.736
Lead.......................................... 16.306 7.571
Nickel........................................ 32.031 21.548
Iron.......................................... 69.887 35.526
Molybdenum.................................... [Reserved] [Reserved]
Ammonia (as N)................................ 24114.000 10600.000
Total Suspended Solids........................ 873.585 698.868
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(c) Vanadium decomposition wet air pollution control.
NSPS for the Secondary Molybdenum and Vanadium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
molybdenum
and
vanadium
produced
-------------------------
Arsenic....................................... 0.000 0.000
Chromium...................................... 0.000 0.000
Lead.......................................... 0.000 0.000
Nickel........................................ 0.000 0.000
Iron.......................................... 0.000 0.000
Molybdenum.................................... 0.000 0.000
Ammonia (as N)................................ 0.000 0.000
Total suspended solids........................ 0.000 0.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times. (continued)