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BMP FILTERS: UPFLOW VS. DOWNFLOW
Clark**, S., R. Pitt, AND A. Balakrishnan. BMP FILTERS: UPFLOW VS. DOWNFLOW. Presented at ASCE Urban Water Resources Research Council/Engineering Foundation Conference, Snowmass, CO, August 19, 2001.
To inform the public.
Stormwater filters are typically operated in a downflow mode. This research had two objectives: 1) to determine the increased life of a filter operated in an upflow mode, and 2) to determine if the operation of a downflow, mixed-media filter could be modeled using the power equation proposed by Urbonas( 1999). The results showed that upflow operation could provide longer filter run times. Using laboratory-scale columns, the use of a power equation to model downflow filtration was also demonstrated. Model confirmation using pilot-scale columns is currently underway.
Record Details:Record Type: DOCUMENT (PRESENTATION/PAPER)
Organization:U.S. ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
NATIONAL RISK MANAGEMENT RESEARCH LABORATORY
WATER SUPPLY AND WATER RESOURCES DIVISION
URBAN WATERSHED MANAGEMENT BRANCH