System for filtration of septic tank sewage effluent

Abstract

The invention describes a filter container, system and method for filtering sewage effluent from a septic tank. The filter container includes a body having a lower end and an upper end, having walls forming a floor positioned at the lower end and sides connected to the floor and positioned to define an inner cavity extending from the lower end to the upper end. The body of the container has a mouth opening positioned at the upper end to provide access to the inner cavity. A lid is positioned on the upper end of the body so as to cover the mouth cavity to thereby close the container. A plurality of pipes connect the container in fluid communication with the septic tank or with another container, the plurality of pipes including at least one inlet pipe for delivering sewage effluent to the inner cavity and at least one outlet pipe for discharging filtered sewage effluent from the inner cavity. The filter container also includes at least one filter having a filter matrix of a lightweight particulate material, the filter being positioned within the inner cavity of the filter container for filtering the sewage effluent. A system for filtering sewage effluent from a septic tank, the system includes a plurality of filter containers connected in fluid communication with the septic tank such that each filter container of the plurality is connected with at least one other filter container to form a chain of filter containers.