Patent ID: 7279104

Claim:
A method for treating biological waste containing at least one target species, comprising: introducing the waste into a first water filled lagoon; adding to the first water filled lagoon, at least one microbe effective for converting the at least one target species in the waste to at least one other species; aerating the first water filled lagoon with a plurality of aerators dispersed on the bottom of the first water filled lagoon, the aerators adapted to produce a laminar column of bubbles, the aerators being supplied by a first compressed air supply; circulating the first water filled lagoon with at least one circulator adapted to cause the first water filled lagoon to circulate; sending a portion of the water filled lagoon to a second water filled lagoon; aerating the second water filled lagoon with a plurality of aerators dispersed on the bottom of the second water filled lagoon, the aerators being supplied by a second compressed air supply; and circulating the second water filled lagoon with at least one circulator adapted to cause the second water filled lagoon to circulate.