Patent ID: 7846328
Filing Date: 2010-12-07
Classification: C02F,Y02W

Abstract:
1. A system designed for enhanced treatment wastewater, including nitrogen removal using biological methods: the invention includes a septic tank vessel(s) comprising at least one tank or tanks in series, sized at a minimum of one hundred and fifty percent (150%) of the design flow, so arranged that the influent from the septic tank flows by gravity to the recirculation tank; a recirculation tank vessel(s) comprising at least one tank or tanks in series, of which a single tank contains an effluent pump(s), flow splitter device and two (2) float valves, where a portion of the tank contents (effluent) is then pumped back into the septic tank and the remainder of said effluent portion is pumped up to filter modules or bed and flows by gravity back into the recirculation tank; where the flow returning into the recirculation tank enters a flow splitter of which a float valve controlled by liquid levels within said tank releases a portion of the flow into the second compartment of the recirculation tank containing organic carbon source in an anaerobic environment for final treatment and discharge and/or recycling to recirculation tank by way of a second float valve located with the baffle or recirculation outlet of said tank; a filter module(s) (at least one reactive filter or filters within a series or one large on-site filter bed), comprised of a distribution device to ensure equal coverage of the media and allowed to percolate down through the stone and calcium carbonate mixture and return into the recirculation tank, by gravity; a second anaerobic zone combined in said recirculation tank, or in a separate tank in series, whereby the invention includes a quantity of solid material, including organic carbon, arranged in a tank containing a poly membrane removable device that is affixed to the sidewall as to cover ninety percent (90%) of the surface area thereby preventing the organic carbon medium from contact with atmospheric oxygen and providing a lateral flow path for the influent entering through and dispersal system located at the bottom of the aforementioned tank.