topics: • werf study revisited • grease separator
TRANSCRIPT
![Page 1: Topics: • WERF Study Revisited • Grease Separator](https://reader034.vdocuments.net/reader034/viewer/2022042412/625f071f3d1513523e7d0f04/html5/thumbnails/1.jpg)
Topics:• WERF Study Revisited
• Grease Separator Retention Losses
• A New FOG Test Method Evaluated
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Conclusions:Detergent Flows Remove Retained Grease from Separators
Spectrophotometer Method = EPA 1664Accuracy
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Why Does This Happen?
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WERF Study 2008
Dr. Joel DucosteTarik AzizN. C. State University
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MetallicSoaps
InsolublePrecipitates
FattyAcids
Ca
Na
Mg
Si
P
S
Fe
Al
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ActivityLipids(fats & v. oils)
Detergents
Hydrolysis
FattyAcids
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Fast Assessment FOG Test
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Accuracy Assessment
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Emulsion Retention Loss Test
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Effluent Sampling Methodology
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0
200
400
600
800
1000
1200
0 1 2 3 4 5 6 7
Loss
mg/l
Drop #
Separator Design vs Emulsion Losses
Design A
Design B
Design C
Fat Flows
Soap Flows
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Conclusions:Detergent Flows Remove Retained Grease from Separators Via Emulsification
Spectrophotometer Method Accuracy =/> EPA 1664 Gravimetric Method
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For Report Info and Links:[email protected]