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AWWA ACE58093
- Reducing Filtration Energy Requirement through Innovations in Backwashing and Flow Control
- Conference Proceeding by American Water Works Association, 06/15/2003
- Publisher: AWWA
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Cluster gravity filters have been used in drinking water applications for more than threedecades. A recent innovative advancement in the influent flow-splitting arrangement canreduce the total filtration headloss by as much as 60 inches (1.5 meters) withoutsacrificing solids capture capability. A decrease in the operating headloss, in turn,reduces the amount of energy used by the system. In addition, cluster filters feature theability to provide backwash water from in-service filter cells, thus eliminating or greatlyreducing the backwash pumping requirement associated with power costs. These twoimportant design features also require less maintenance. Includes figures.
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