Performance of Grease Abatement Devices for Removal of Fat, Oil, and Grease
Publication: Journal of Environmental Engineering
Volume 137, Issue 1
Abstract
This study assessed the performance of a conventional grease abatement device and the impact of internal geometry modifications on fat, oil, and grease (FOG) removal efficiency. Analysis was performed using experimental results and computational fluid dynamics (CFD) on alternative inlet, outlet, and baffle wall designs. Numerical and experimental results indicated that the conventional two-compartment design leads to substantial FOG short circuiting when operated at a 20-min hydraulic retention time (HRT). Alterations to the inlet configuration and baffle wall arrangement yielded FOG removal enhancements with the 20-min HRT that approached removal performance levels obtained with the standard configurations at the 1-h HRT. CFD simulations effectively reproduced performance trends observed on the lab-scale with the exception of simulations using a distributive inlet tee, where CFD over predicted the removal performance.
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Acknowledgments
The research team would like to acknowledge the Water Environment Research Foundation for funding the present research (Grant No. UNSPECIFIED03-CTS-16T) and the town of Cary, North Carolina for providing resources in addressing the issues of interceptor design.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 137 • Issue 1 • January 2011
Pages: 84 - 92
Copyright
© 2011 ASCE.
History
Received: Oct 13, 2009
Accepted: Jun 21, 2010
Published online: Jun 23, 2010
Published in print: Jan 2011
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