Patent ID: 7998343

Claim:
A wastewater treatment system comprising: an aeration tank comprising an open top, a bottom and a sidewall extending therebetween; the open top of the aeration tank receiving a clarifier, the clarifier comprising a top received in the open top of the aeration tank, a lower frustum disposed above the bottom of the aeration tank, and a tapered sidewall extending between the top and lower frustum that defines an interior of the clarifier inside the tapered sidewall and an aeration space between the tapered sidewall and the sidewall of the aeration tank; an aerator pump disposed between the bottom of the aeration tank and the interior of the clarifier, the aerator pump being connected to an air inlet line and a plurality of bubble outlet lines; the plurality of bubble outlet lines being disposed below the frustum and above the bottom of the aeration tank and directed radially outward towards the sidewall of the aeration tank.