Patent ID: 7807050
Filing Date: 2010-10-05
Classification: B01D

Abstract:
1. A stationary cloth media filtration system for treating an influent flow of water or wastewater in a filtration basin, comprising: an influent channel which receives the influent flow; at least one influent plenum having metering slots to distribute the influent flow across the bottom of the filtration basin; at least one effluent plenum sealed from the unfiltered influent; at least two adjacent substantially linear, opposingly spaced filter plates supporting a cloth filter media to filter the influent in a filtration region of the filtration basin, an interior of said at least two adjacent filter plates in fluid communication with said at least one effluent plenum through which the filtered effluent is discharged from the system; and, a linearly moving backwash assembly to periodically clean said cloth filter media on said at least two adjacent filter plates, said backwash assembly including a source of suction and at least one substantially cylindrical rotating backwash arm communicating with said source of suction, each rotating backwash arm adapted to backwash opposing filter plate surfaces consecutively.