Loading (50 kb)...'
(continued)
NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... .069 .032
Zinc.......................................... .251 .103
Ammonia (as N)................................ 32.790 14.420
Fluoride...................................... 8.610 4.920
Total suspended solids........................ 3.690 2.952
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(d) Subpart K—Precipitation and Filtration.
NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... 3.833 1.780
Zinc.......................................... 13.960 5.750
Ammonia (as N)................................ 1,825.000 802.200
Fluoride...................................... 479.100 273.800
Total suspended solids........................ 205.400 164.300
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(e) Subpart K—Precipitation and Filtration Wet Air Pollution Control.
NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... 1.778 .826
Zinc.......................................... 6.478 2.668
Ammonia (as N)................................ 846.600 372.200
Fluoride...................................... 222.300 127.000
Total suspended solids........................ 95.270 76.210
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(f) Subpart K—Tantalum Salt Drying.
NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
salt dried
-------------------------
Lead.......................................... 16.950 7.871
Zinc.......................................... 61.750 25.430
Ammonia (as N)................................ 8,070.000 3,548.000
Fluoride...................................... 2,119.000 1,211.000
Total suspended solids........................ 908.200 726.500
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(g) Subpart K—Oxides Calcining Wet Air Pollution Control.
NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
columbium-
tantalum
oxide dried
-------------------------
Lead.......................................... 1.076 .500
Zinc.......................................... 3.919 1.614
Ammonia (as N)................................ 512.200 225.200
Fluoride...................................... 134.500 76.840
Total suspended solids........................ 57.630 46.110
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(h) Subpart K—Reduction of Tantalum Salt to Metal.
NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
salt
reduced
-------------------------
Lead.......................................... 46.500 21.590
Zinc.......................................... 169.400 69.750
Ammonia (as N)................................ 22,140.000 9,732.000
Fluoride...................................... 5,813.000 3,322.000
Total suspended solids........................ 2,491.000 1,993.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(i) Subpart K—Reduction of Tantalum Salt to Metal Wet Air Pollution Control.
NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
salt
reduced
-------------------------
Lead.......................................... .572 .266
Zinc.......................................... 2.084 .858
Ammonia (as N)................................ 272.400 119.700
Fluoride...................................... 71.510 40.860
Total suspended solids........................ 30.650 24.520
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(j) Subpart K—Tantalum Powder Wash.
NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
powder
washed
-------------------------
Lead.......................................... 5.721 2.656
Zinc.......................................... 20.840 8.582
Ammonia (as N)................................ 2,724.000 1,198.000
Fluoride...................................... 715.200 408.700
Total suspended solids........................ 306.500 245.200
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(k) Subpart K—Consolidation and Casting Contact Cooling.
NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
columbium
or tantalum
cast or
consolidate
d
-------------------------
Lead.......................................... .000 .000
Zinc.......................................... .000 .000
Ammonia (as N)................................ .000 .000
Fluoride...................................... .000 .000
Total suspended solids........................ .000 .000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
[49 FR 8817, Mar. 8, 1984, as amended at 49 FR 29795, July 24, 1984; 50 FR 12253, Mar. 28, 1985]
§ 421.115 Pretreatment standards for existing sources.
top
Except as provided in 40 CFR 403.7 and 403.13, any existing 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 existing sources. The mass of wastewater pollutants in primary columbium-tantalum process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart K—Concentrate Digestion Wet Air Pollution Control.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... .174 .081
Zinc.......................................... .635 .261
Ammonia (as N)................................ 82.910 36.450
Fluoride...................................... 21.770 12.440
------------------------------------------------------------------------
(b) Subpart K—Solvent Extraction Raffinate.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
--------------------------
Lead......................................... 2.592 1.203
Zinc......................................... 9.442 3.888
Ammonia (as N)............................... 1,233.000 542.5000
Fluoride..................................... 324.000 185.100
------------------------------------------------------------------------
(c) Subpart K—Solvent Extraction Wet Air Pollution Control.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... .069 .032
Zinc.......................................... .251 .103
Ammonia (as N)................................ 32.790 14.420
Fluoride...................................... 8.610 4.920
------------------------------------------------------------------------
(d) Subpart K—Precipitation and Filtration.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... 3.833 1.780
Zinc.......................................... 13.960 5.750
Ammonia (as N)................................ 1,825.000 802.200
Fluoride...................................... 479.100 273.800
------------------------------------------------------------------------
(e) Subpart K—Precipitation and Filtration Wet Air Pollution Control.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... 1.778 .826
Zinc.......................................... 6.478 2.668
Ammonia (as N)................................ 846.600 372.200
Fluoride...................................... 222.300 127.000
------------------------------------------------------------------------
(f) Subpart K—Tantalum Salt Drying.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
salt dried
-------------------------
Lead.......................................... 16.950 7.871
Zinc.......................................... 61.750 25.430
Ammonia (as N)................................ 8,070.000 3,548.000
Fluoride...................................... 2,119.000 1,211.000
------------------------------------------------------------------------
(g) Subpart K—Oxides Calcining Wet Air Pollution Control.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
columbium-
tantalum
oxide dried
-------------------------
Lead.......................................... 1.076 .500
Zinc.......................................... 3.919 1.614
Ammonia (as N)................................ 512.200 225.200
Fluoride...................................... 134.500 76.840
------------------------------------------------------------------------
(h) Subpart K—Reduction of Tantalum Salt to Metal.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
salt
reduced
-------------------------
Lead.......................................... 46.500 21.590
Zinc.......................................... 169.400 69.750
Ammonia (as N)................................ 22,140.000 9,732.000
Fluoride...................................... 5,813.000 3,322.000
------------------------------------------------------------------------
(i) Subpart K—Reduction of Tantalum Salt to Metal Wet Air Pollution Control.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
salt
reduced
-------------------------
Lead.......................................... .572 .266
Zinc.......................................... 2.084 .858
Ammonia (as N)................................ 272.400 119.700
Fluoride...................................... 71.510 40.860
------------------------------------------------------------------------
(j) Subpart K—Tantalum Powder Wash.
PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
powder
washed
-------------------------
Lead.......................................... 5.721 2.656
Zinc.......................................... 20.840 8.582
Ammonia (as N)................................ 2,724.000 1,198.000
Fluoride...................................... 715.200 408.700
------------------------------------------------------------------------
(k) Subpart K—Consolidation and Casting Contact Cooling.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
columbium
or tantalum
cast or
consolidate
d
-------------------------
Lead.......................................... .000 .000
Zinc.......................................... .000 .000
Ammonia (as N)................................ .000 .000
Fluoride...................................... .000 .000
------------------------------------------------------------------------
[49 FR 8817, Mar. 8, 1984, as amended at 50 FR 12253, Mar. 28, 1985]
§ 421.116 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 columbium-tantalum process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart K—Concentrate Digestion Wet Air Pollution Control.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... .174 .081
Zinc.......................................... .635 .261
Ammonia (as N)................................ 82.910 36.450
Fluoride...................................... 21.770 12.440
------------------------------------------------------------------------
(b) Subpart K—Solvent Extraction Raffinate.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
--------------------------
Lead......................................... 2.592 1.203
Zinc......................................... 9.442 3.888
Ammonia (as N)............................... 1,233.000 542.5000
Fluoride..................................... 324.000 185.100
------------------------------------------------------------------------
(c) Subpart K—Solvent Extraction Wet Air Pollution Control.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... .069 .032
Zinc.......................................... .251 .103
Ammonia (as N)................................ 32.790 14.420
Fluoride...................................... 8.610 4.920
------------------------------------------------------------------------
(d) Subpart K—Precipitation and Filtration.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... 3.833 1.780
Zinc.......................................... 13.960 5.750
Ammonia (as N)................................ 1,825.000 802.200
Fluoride...................................... 479.100 273.800
------------------------------------------------------------------------
(e) Subpart K—Precipitation and Filtration Wet Air Pollution Control.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
concentrate
digested
-------------------------
Lead.......................................... 1.778 .826
Zinc.......................................... 6.478 2.668
Ammonia (as N)................................ 846.600 372.200
Fluoride...................................... 222.300 127.000
------------------------------------------------------------------------
(f) Subpart K—Tantalum Salt Drying.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
salt dried
-------------------------
Lead.......................................... 16.950 7.871
Zinc.......................................... 61.750 25.430
Ammonia (as N)................................ 8,070.000 3,548.000
Fluoride...................................... 2,119.000 1,211.000
------------------------------------------------------------------------
(g) Subpart K—Oxides Calcining Wet Air Pollution Control.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
columbium-
tantalum
oxide dried
-------------------------
Lead.......................................... 1.076 .500
Zinc.......................................... 3.919 1.614
Ammonia (as N)................................ 512.200 225.200
Fluoride...................................... 134.500 76.840
------------------------------------------------------------------------
(h) Subpart K—Reduction of Tantalum Salt to Metal.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
salt
reduced
-------------------------
Lead.......................................... 46.500 21.590
Zinc.......................................... 169.400 69.750
Ammonia (as N)................................ 22,140.000 9,732.000
Fluoride...................................... 5,813.000 3,322.000
------------------------------------------------------------------------
(i) Subpart K—Reduction of Tantalum Salt to Metal Wet Air Pollution Control.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
salt
reduced
-------------------------
Lead.......................................... .572 .266
Zinc.......................................... 2.084 .858
Ammonia (as N)................................ 272.400 119.700
Fluoride...................................... 71.510 40.860
------------------------------------------------------------------------
(j) Subpart K—Tantalum Powder Wash.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tantalum
powder
washed
-------------------------
Lead.......................................... 5.721 2.656
Zinc.......................................... 20.840 8.582
Ammonia (as N)................................ 2,724.000 1,198.000
Fluoride...................................... 715.200 408.700
------------------------------------------------------------------------
(k) Subpart K—Consolidation and Casting Contact Cooling.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
columbium
or tantalum
cast or
consolidate
d
-------------------------
Lead.......................................... .000 .000
Zinc.......................................... .000 .000
Ammonia (as N)................................ .000 .000
Fluoride...................................... .000 .000
------------------------------------------------------------------------
[49 FR 8817, Mar. 8, 1984, as amended at 50 FR 12253, Mar. 28, 1985]
§ 421.117 [Reserved]
top
Subpart L—Secondary Silver Subcategory
top
Source: 49 FR 8821, Mar. 8, 1984, unless otherwise noted.
§ 421.120 Applicability: Description of the secondary silver subcategory.
top
The provisions of this subpart are applicable to discharges resulting from the production of silver from secondary silver facilities processing photographic and nonphotographic raw materials.
[49 FR 8821, Mar. 8, 1984; 49 FR 26739, June 29, 1984]
§ 421.121 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.
§ 421.122 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) Subpart L—Film Stripping.
BPT Effluent Limitations
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/troy
ounce of
silver from
film
stripping
-------------------------
Copper........................................ 95.670 50.350
Zinc.......................................... 73.510 30.720
Ammonia (as N)................................ 6,712.000 2,951.000
Total suspended solids........................ 2,065.000 981.800
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(b) Subpart L—Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control.
BPT Effluent Limitations
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/troy
ounce of
silver from
precipitati
on and
filtration
of film
stripping
solutions
-------------------------
Copper........................................ 1.843 .970
Zinc.......................................... 1.416 .592
Ammonia (as N)................................ 129.300 56.840
Total suspended solids........................ 39.770 18.920
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(c) Subpart L—Precipitation and Filtration of Film Stripping Solutions.
BPT Effluent Limitations
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/troy
ounce of
silver
precipitate
d
-------------------------
Copper........................................ 109.400 57.570
Zinc.......................................... 84.050 35.120
Ammonia (as N)................................ 7,674.000 3,374.000
Total suspended solids........................ 2,361.000 1,123.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(d) Subpart L—Precipitation and Filtration of Photographic Solutions.
BPT Effluent Limitations
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/troy
ounce of
silver
precipitate
d
-------------------------
Copper........................................ 50.540 26.600
Zinc.......................................... 38.836 16.226
Ammonia (as N)................................ 3,545.000 1,559.000
Total suspended solids........................ 1,090.600 518.700
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(e) Subpart L—Precipitation and Filtration of Photographic Solutions Wet Air Pollution Control. (continued)