Patent ID: 7374676
Filing Date: 2008-05-20
Classification: B01D

Abstract:
1. High rate depth filtration apparatus for removing suspended solids from liquids, said apparatus comprising: a) a filter housing having an axial flow direction therethrough for liquid; b) a first perforated panel fixedly secured in said housing transverse to said flow direction; c) a second perforated panel movably secured in said housing transverse to said flow direction and spaced from said first perforated panel; d) an influent liquid conduit located adjacent said fixed first panel, said influent conduit connected to a source of liquid having suspended solids therein; e) an effluent liquid conduit located adjacent said movable second panel thereby establishing said axial flow direction through said housing from said influent conduit to said effluent conduit; f) substantially spherical and compressible filtration media of individual, fibrous lumps of bundled, crimped fibers located between said first and second panels; and g) a piston for moving said second perforated panel toward and away from said fixed first panel to define: