!j!ji]@ - whitehouse.gov · 0.15 ug/m3 (adopted & beginning implementation) , national emission...
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a ~DV@[JuuDCIDB
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- --
EMISSIONS PATH BEFORE WESP AND RTO PROJECT
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REVERB FURNACE
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[. O~ ---ELECTRIC 1FURNACE
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EMISSIONS PATH AFTER WESP AND RTO PROJECT
ROTARY DRYER
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REVERB FURNACE
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Generalized WESP Process Description Conditioning Outlet Section
• Neutralize acid gases
• Polish S02 removal INLET
HEADER
A CONOITlONING
~~ I--SECTION-----I
FOG HEADIR
• Supports high voltage grid
• Air purge system to clean high voltage insulators
• Wash headers to provide wet film for PM removal
Collection Section • Collects and
removes rticulate
lRAHSFORNER RECT1F1ER
DD DD
6
Section • Ensures gas is
saturated • Evenly distributes
gas to collection section 0VJlET
SECTION
• Sub-cools gas in condenser/ab~,ort)e'~i~
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Electric Field
• Electron
Neutral Gas Molecule
Ionized Gas Molecule
Particle
•.'
•
~. • • •
", • Corona Discharge
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Levels of Regulation
, National Ambient Air Quality Standard for Lead (Lead NAAQS)
• 1.5 ug/m3 (current)
• 0.15 ug/m3 (adopted & beginning implementation)
, National Emission Standards for Hazardous Air Pollutants for Secondary Lead Smelters (Subpart X)
, California-specific rules:
, Rule 1420.1 • Early implementation of new Lead NAAQS
, Rule 1402 • Health Risk Assessment and Reduction
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of lead emissions for other smelters compared to the lead emissions from the Quemetco City of Industry Faci lity. Forexample. for each pound of lead emitted by the Quemetco City of Industry Facility in California the Sanders Lead Facility in Alabama emits 86 pounds.
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RTO - Regenerative Thermal Oxidation
Thermal Beds
Exhaust Duct
Inlet Blower
~' ''---''''''-----I
/
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1, 3-Butadiene Emissions Reduced 98.4% & Benzene Emissions Reduced 94.6% by RTO
2,500 Pre-Project
2,024
2,000 Pre-Project
1,653
1,500
. 1,3Butadiene
~
is 1,000 • Benzene
:~ E
Post-Project Post-Project
33.3 89.8
Comparison of Emissions Pre- and Post-RTO Installation
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