A system for treating wastewater includes a basin to contain wastewater, an aerator provided in the basin to mix the wastewater, and a cover system to cover a surface of the wastewater contained in the basin. The cover system includes a plurality of hollow bodies disposed on the surface of the wastewater. Each hollow body is adapted to float on the wastewater's surface, and has a contiguous outer surface and a sufficient mass so that 30 to 70 percent of the hollow body's outer surface is exposed to atmosphere during use. A method of treating wastewater is further disclosed.
RELATED APPLICATIONS
This application is a divisional application of U.S. patent application Ser. No. 11/225,385, entitled "SYSTEM AND METHOD FOR TREATING WASTEWATER," filed on Sep. 13, 2005, which claims benefit of U.S. Provisional Application Ser. No. 60/609,423, entitled "SYSTEM AND METHOD FOR TREATING WASTEWATER," filed on Sep. 13, 2004, both of which are herein incorporated by reference in their entirety.
