Patent ID: 7223343

Claim:
A treatment system comprising: (a) a tank for processing wastewater, said tank having a tank water level; (b) a growth media reactor positioned in said tank, said growth media reactor having a least one outer sidewall defining an interior forming a mixing zone, said interior having a reactor water level, said at least one outer sidewall extending above said reactor water level, whereby said outer sidewall substantially fluidly isolates said interior of said reactor near said reactor water level from the exterior of said reactor near said reactor water level; (c) growth media positioned in said interior of said growth media reactor; (d) an outlet removing waters from said treatment system, said outlet exterior to said mixing zone; (e) 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; and (f) an inlet feeding wastewaters external to said tank for treatment in said treatment system, said inlet discharging into said tank near said air discharge site.