Patent ID: 7740756
Filing Date: 2010-06-22
Classification: B01D,C02F

Abstract:
1. A wastewater filter comprising: a case including an open bottom end for receiving an inflow of sewage into said filter and an outlet positioned above said open bottom end for allowing filtered effluent to exit said filter; and a plurality of stackable filter units sized to fit within said casing, each of the filter units having a first planar surface and a second planar surface, the first planar surface having a closed center portion, the second planar surface having a filtering wall extending downwardly therefrom toward said open bottom end to an edge and one or more openings formed adjacent said filtering wall, said one or more openings fluidly connecting said first and second planar surfaces, wherein the second planar surface is designed for stacking alignment with the first planar surface of an adjacent filter unit and wherein the edge forms a filter aperture with the first planar surface of the adjacent filter unit, wherein the plurality of stackable filter units are vertically oriented so that for each of the filter units the first planar surface is a top surface that is closer to said outlet than said second planar surface and the second planar surface is a bottom surface that is positioned below the top surface and closer to said open bottom end than said first planar surface.