Patent ID: 9718007
Date: 2017-08-01
CPC Classifications: B01D,C02F,E03F

Claim:
1. An apparatus for modular drainage filtration, comprising: a modular filtration container having an open-ended structure and comprising a plurality of at least semi-rigid walls, each wall being formed from or machined into a single sheet of at least semi-rigid material and configured to be assembled to form a container enclosing an inner region and having open and opposite upper and lower base surfaces to form an open-ended structure with the number of side rectangle faces being determined by the number of walls used during assembly; a plurality of filter stages each comprising at least a flat sheet or panel of filter material configured to filter a fluid passing through the filter material, and configured to conform to the shape of an open base of an assembled modular filtration container; wherein at least a portion of the plurality of walls each respectively comprise at least an upper overhanging portion comprising a rigid portion of material oriented perpendicular to an upper edge of the wall and oriented away from an inner region enclosed by the assembled container; wherein at least a portion of the plurality of walls each respectively comprise at least a lower overhanging portion comprising a rigid portion of material oriented perpendicular to a lower edge of the wall and oriented inward toward an inner region enclosed by the assembled container; wherein at least a portion of the plurality of walls each respectively comprise a plurality of formed S-fold portions configured to apply mechanical pressure to a sheet of material inserted into the S-fold; wherein at least a portion of the plurality of walls each respectively comprise a plurality of inlet tabs, each inlet tab comprising at least a triangular region of a wall that is separated along all but one edge and configured to be creased or folded inward to form an opening in the surface of the wall; wherein at least a portion of the walls are assembled via inserting a portion of the wall material into an S-fold portion of an adjacent wall; and wherein the plurality of filter stages are placed within the inner region enclosed by the modular filtration apparatus, and rest upon the plurality of lower overhanging portions.