Patent ID: 7799235
Filing Date: 2010-09-21
Classification: B01D,E03F

Abstract:
1. A separation system for removing suspended and/or dissolved contaminants from a fluid, the system comprising: a. a tank having an inlet, an outlet, a confinement deck, and a containment chamber below the confinement deck; and b. at least one filter removably retained to the confinement deck, wherein the fluid entering the containment chamber through the inlet passes through the at least one filter to the outlet, wherein the filter is configured to remove at least a portion of the suspended and/or dissolved contaminants in the fluid prior to the fluid passing through to the outlet; wherein the filter includes a retainer with a floor and an upright porous perimeter retainer wall arranged to define an interior retainer space in fluid communication with the outlet, a filter media within the interior retainer space, and the upright porous perimeter retainer wall extends a full height of the retainer space and the filter media therein, and wherein the retainer is arranged to allow fluid to flow through the upright porous perimeter retainer wall into the interior retainer space; wherein the floor of the retainer is porous and movable relative to the porous perimeter retainer wall, and the fluid is allowed to flow through both the porous floor and the porous perimeter retainer wall to the interior retainer space; wherein the retainer further includes a porous interior conduit spaced within the interior retainer space and in fluid communication with the outlet, the filter includes filter media retained within the interior retainer space but not within the interior conduit; wherein the floor is hingedly affixed to the perimeter retainer wall so as to be movable between a position to contain filter media in the retainer space and a position to allow filter media to drop downward out of the retainer space into the containment chamber.