CFR / Title 40 / Part 421 / Sec. 421.106 Pretreatment standards for new sources.

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 tungsten process wastewater introduced into a POTW shall not exceed the following values:

(a) Subpart J--Tungstic Acid Rinse.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

tungstic acid (as W)

produced

--------------Lead.......................................... 11.490 5.333Zinc.......................................... 41.850 17.230Ammonia (as N)................................ 5,469.000 2,404.000------------------------------------------------------------------------

(b) Subpart J--Acid Leach Wet Air Pollution Control.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (pounds per

million) of tungstic

acid (as W) produced

--------------Lead.......................................... 1.003 0.466Zinc.......................................... 3.653 1.504Ammonia (as N)................................ 477.400 209.900------------------------------------------------------------------------

(c) Subpart J--Alkali Leach Wash.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (pounds per

million) of sodium

tungstate (as W)

produced

--------------Lead.......................................... 0.000 0.000Zinc.......................................... 0.000 0.000Ammonia (as N)................................ 0.000 0.000------------------------------------------------------------------------

(d) Subpart J--Alkali Leach Wash Condensate.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (pounds per

million) of sodium

tungstate (as W)

produced

--------------Lead.......................................... 5.372 2.494Zinc.......................................... 19.570 8.057Ammonia (as N)................................ 2,557.000 1,124.000------------------------------------------------------------------------

(e) Subpart J--Ion Exchange Raffinate (Commingled With Other Process or Nonprocess Waters).

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (pounds per

million) of ammonium

tungstate (as W)

produced

--------------Lead.......................................... 24.780 11.500Zinc.......................................... 90.240 37.160Ammonia (as N)................................ 11,790.000 5,185.000------------------------------------------------------------------------

(f) Subpart J--Ion Exchange Raffinate (Not Commingled With Other Process or Nonprocess Waters).

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (pounds per

million) of ammonium

tungstate (as W)

produced

--------------Lead.......................................... 24.780 11.500Zinc.......................................... 90.240 37.160Ammonia (as N)(\1\)........................... 11,790.000 5,185.000------------------------------------------------------------------------\1\ The pretreatment standard for this pollutant does not apply if a)

the mother liquor feed to the ion exchange process or the raffinate

from the ion exchange process contains sulfates at concentrations

exceeding 1000 mg/l; b) this mother liquor or raffinate is treated by

ammonia steam stripping; and c) such mother liquor or raffinate is not

commingled with any other process or nonprocess waters prior to steam

stripping for ammonia removal.

(g) Subpart J--Calcium Tungstate Precipitate Wash.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (pounds per

million) of calcium

tungstate (as W)

produced

--------------Lead.......................................... 20.670 9.594Zinc.......................................... 75.280 31.000Ammonia (as N)................................ 9,838.000 4,325.000------------------------------------------------------------------------

(h) Subpart J--Crystallization and Drying of Ammonium Paratungstate.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (pounds per

million) of ammonium

paratungstate (as W)

produced

--------------

Lead.......................................... 0.000 0.000Zinc.......................................... 0.000 0.000Ammonia (as N)................................ 0.000 0.000------------------------------------------------------------------------

(i) Subpart J--Ammonium Paratungstate Conversion to Oxides Wet Air Pollution Control.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (pounds per

million) of tungstic

oxide (as W) produced

--------------Lead.......................................... 0.773 0.359Zinc.......................................... 2.817 1.160Ammonia (as N)................................ 368.200 161.900------------------------------------------------------------------------

(j) Subpart J--Ammonium Paratungstate Conversion to Oxides Water of Formation.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (pounds per

million) of tungstic

oxide (as W) produced

--------------Lead.......................................... 0.018 0.008Zinc.......................................... 0.064 0.026Ammonia (as N)................................ 8.398 3.692------------------------------------------------------------------------

(k) Subpart J--Reduction to Tungsten Wet Air Pollution Control.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (pounds per

million) of tungsten

metal produced

--------------Lead.......................................... .862 .400Zinc.......................................... 3.142 1.294Ammonia (as N)................................ 410.600 180.500------------------------------------------------------------------------

(l) Subpart J--Reduction to Tungsten Water of Formation.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (lb/ million lbs)

of tungsten metal

produced

--------------Lead.......................................... .137 .064Zinc.......................................... .499 .205Ammonia (as N)................................ 65.190 28.660------------------------------------------------------------------------

(m) Subpart J--Tungsten Powder Acid Leach and Wash.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (parts per

million) of tungsten

metal produced

--------------Lead.......................................... .672 .312Zinc.......................................... 2.448 1.008Ammonia (as N)................................ 319.900 140.700------------------------------------------------------------------------

(n) Subpart J--Molybdenum Sulfide Precipitation Wet Air Pollution Control.

PSNS------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any one day average------------------------------------------------------------------------

mg/kg (parts per

million) of tungsten

metal produced