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Properties Influencing Fat, Oil, and Grease Deposit Formation.
- Source :
- Water Environment Research (10614303); Dec2008, Vol. 80 Issue 12, p2241-2246, 6p, 2 Black and White Photographs, 5 Charts
- Publication Year :
- 2008
-
Abstract
- Fat, oil, and grease (FOG) deposits are the reported cause of 50 to 75% of sanitary sewer overflows in the United States, resulting in 1.8 X 10[sup6] m[sup3] (500 mu, gal) of raw wastewater released into the environment annually. The objective of this research was to characterize the chemical. and physical properties of FOG deposits. Twenty-three cities from around the United States contributed FOG samples for the study. The FOG deposits showed a wide range in yield strength (4 to 34 kPa), porosity (10 to 24%), and moisture content (10 to 60%), suggesting uncontrolled formation processes. A majority of these deposits display hard, sandstonelike texture, with distinct layering effects, suggesting a discontinuous formation process. The results found that 84% of FOG deposits contained high concentrations of saturated fatty acids and calcium, suggesting preferential accumulation. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10614303
- Volume :
- 80
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Water Environment Research (10614303)
- Publication Type :
- Academic Journal
- Accession number :
- 35783551
- Full Text :
- https://doi.org/10.2175/193864708X267441