US 7,465,394 B2
Wastewater treatment system
Daniel Durda, Tonka Bay, Minn. (US); G. Shawn Brown, Waconia, Minn. (US); and Cory Mortenson, Chaska, Minn. (US)
Assigned to Aeration Industries International, Inc., Chaska, Minn. (US)
Filed on Sep. 05, 2006, as Appl. No. 11/470,184.
Prior Publication US 2008/0053898 A1, Mar. 06, 2008
Int. Cl. C02F 3/06 (2006.01)
U.S. Cl. 210—615  [210/629; 210/150; 210/194; 210/242.2; 210/903; 210/926] 36 Claims
OG exemplary drawing
 
1. A method of treating wastewater, the method comprising the steps of:
providing a microorganism clad structure and an aeration device;
submerging the microorganism clad structure in a body of wastewater such that at least a portion of the microorganism clad structure is immersed in the body of wastewater; and
injecting oxygen through the aeration device into the body of wastewater, creating a high velocity fluid jet in the body of wastewater, thereby providing a horizontal flow of oxygenated water past the microorganism clad structure to provide a favorable environment to carry out a biological process,
wherein the microorganism clad structure includes one or more textile sheets attached to one or more floatation members, wherein the one or more floatation members float on the surface of the body of wastewater such that the one or more textile sheets are suspended from the one or more floatation members in the body of wastewater parallel to the flow of oxygenated water.