Patent ID: 6620321
Filing Date: 2003-09-16
Classification: C02F,Y02W

Abstract:
A biofilter for treating waste water, said biofilter comprising:(a) a container having an interior, an upper end, and a lower floor, said floor having a plurality of apertures through which wastewater effluent may flow; (b) a plurality of sacks housed within said interior of said container, each of said sacks formed of a porous material, and wherein said plurality of sacks are arranged within said container in layers, wherein sacks in a first layer are arranged end to end to one another and sacks in a second layer superjacent to said first layer of sacks are arranged end to end to one another such that sacks of said second layer are oriented perpendicular to subjacent sacks of said first layer, thereby forming a criss-cross pattern with respect to said layers of sacks; (c) a composition of filtering material contained within each of said plurality of sacks; and (d) a wastewater inlet disposed near the upper end of the container and in communication with said interior for receiving wastewater influent carried into said interior for treatment therein, said inlet connected to a conduit housed within said interior of said container, said conduit having a series of holes through which said wastewater influent flows downward onto and through said sacks and exits said biofilter container through said floor apertures.