Patent ID: 6942788

Claim:
A treatment system comprising: (a) a tank for processing wastewater, said tank having a water level; (b) a growth media reactor positioned in said tank, said growth media reactor having at least one outer sidewall defining an interior forming a mixing zone, said at least one outer sidewall extending above said water level, said outer sidewall adapted to fluidly isolate said interior of said reactor from the exterior of said reactor near said water level; (c) growth media positioned in said interior of said growth media reactor; (d) an inlet feeding wastewaters external to said tank for treatment in said treatment system, said inlet discharging into said mixing zone; (e) an outlet removing waters from said treatment system, said outlet exterior to said growth media reactor; and (f) at least one air discharge site adapted to be connected to an air source, said air discharge site positioned so that air released from said air discharge site will substantially flow and disperse upwardly through said growth media; where the ratio of the growth media reactor volume to the tank volume is no more than about 0.5984.