Aeration innovation
Abstract
The City of Eden, N.C., has switched to the floating-brush rotor (FBR) aerators for improved treatment performance and cut energy costs in the Mebane Bridge Wastewater Treatment Plant (WWTP). These FBRs have high pumping rates of about 10,660 L/min-kW, hence these units are able to provide good mixing in oxidation ditches and other activated sludge processes as well as high oxygen-transfer rates. Typical FBRs installed in activated sludge processes include the 11-kW aerator and 15-kW aerator, and the units are galvanized or stainless steel. Rotor blades are set at a depth of about 229 mm and an electric motor running at 1800 rpm with actual speed of 63 rpm. The unit also has a double-groove, banded belt made of Kevlar that connects the motor and gear reducers and both ends of the rotor have a water-lubricated, ultra-high molecular weight plastic bearings with excellent water characteristics.
Publication Title
Water Environment and Technology
Recommended Citation
Moore, L., & Van Zandt, C. (2007). Aeration innovation. Water Environment and Technology, 19 (3), 58-62. Retrieved from https://digitalcommons.memphis.edu/facpubs/10809
