Document g2Bdm8X1LrBzXrDwpv0O6jzye
AR226-2645
34
AR226-2645
Finishing (packing yarns)
Spinning
Inputs
Processino
Lbs PTFE Lbs C8 Step
Lbs PTFE Lbs C8 Substep
89,379.5
133.2 Product 89,379.5
133.2
Process sewer
Lbs C8 Output Hazardous waste
Air disposal
Yarn
133.2
Dryer Vent
0.0
825,260.0 1,229.6 Product 687,819.0
Sintered Waste
87,319.0
Pumpout White waste
41,342.0 8,780.0
1024.9 Coag/wash Sintering exhaust
130.1 Coag/wash Sintering exhaust
61.6
13.1
973.6
41.0
123.6
5.2 61.6
10.2 1.3
13.1
wet waste
0.0 0.0
0.0
Cleaning
Rinse
0.0 - 0.0 totes
0.0 0.0
Clean
dispersion
tanks
0.0 0.0
0.0 0.0
Nonroutine discharges
Total Grand total
1,532.0 916,171.5
Ruptured 2.3 tote
1,532.0
1,365.1
916,171.5
Spill containment 2.3 and cleanup
1,365.1
1,205.0
11.5
2.3
15.4 133.2 1,365.1
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Assumptions 1. The dispersion is basic, so C8 is assumed to be in salt form. The vapor pressure of the salt at 100C is -0.07 mm Hg, so virtually none will evaporate
during drying. C8 present in the dispersion applied to packing yarns is assumed to remain with the yarn,_______________________ __________________
5% makes it to the hot rolls, where it evaporates and goes to the sintering exhaust scrubber.
___________________________________ __________
3. The boiling point of C8 in both acid and salt forms is -375F. Since the yarn reaches -620F during sintering, the 5% of C8 that remains after washing is
assumed to boil off in sintering and goes to the scrubber.____________ _______________________________ __________ ________________________ 4. Exhaust scrubbing is assumed to be 80%. Consequently, I assume 80% of the 5% of C8 that enters the sintering exhaust is removed and goes to the
process sewer. The rest is assumed to vent out the stack.________________________________________ ____________________________________ 5. Sintered yarns are assumed to be free of C8. Ail downstream processes, including bleaching, and processing of floe and staple, are assumed to be free
of C8, _________'_____________________ _ _ _ ___________ ____ _____________________________ _______________________________
o-t - C
