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 0.287Lead.......................................... 0.130 0.060Nickel........................................ 0.255 0.171Selenium...................................... 0.380 0.171Molybdenum.................................... [Reserved] [Reserved].Ammonia (as N)................................ 61.720 27.130Fluoride...................................... 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 1.041Lead.......................................... 0.470 0.218Nickel........................................ 0.924 0.621Selenium...................................... 1.377 0.621Molybdenum.................................... [Reserved] [Reserved].Ammonia (as N)................................ 223.800 98.390Fluoride...................................... 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 7.182Lead.......................................... 3.244 1.506Nickel........................................ 6.371 4.286Selenium...................................... 9.499 4.286Molybdenum.................................... [Reserved] [Reserved].Ammonia (as N)................................ 1,544.000 678.800Fluoride...................................... 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 1.420Lead.......................................... 0.641 0.298Nickel........................................ 1.260 0.847Selenium...................................... 1.878 0.847Molybdenum.................................... [Reserved] [Reserved].Ammonia (as N)................................ 305.300 134.200Fluoride...................................... 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 0.444Lead.......................................... 0.201 0.093Nickel........................................ 0.394 0.265Selenium...................................... 0.587 0.265Molybdenum.................................... [Reserved] [Reserved].Ammonia (as N)................................ 95.440 41.960Fluoride...................................... 25.060 14.250------------------------------------------------------------------------ [50 FR 38355, Sept. 20, 1985, as amended at 55 FR 31702, 31703, Aug. 3, 1990] Sec. 421.217 [Reserved]