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In the 1990s, the City of Atlanta (City) developed a comprehensive approach to reducing phosphorus levels from the discharges of its three Water Reclamation Centers (WRCs). As a result, the upgrade and expansion of the Utoy Creek WRC was initiated in 1996. The facility was designed
for a maximum month capacity of 44-million gallons per day (mgd) and included treatment processes such as coarse screening, vortex grit removal, 5-millimeter (mm) fine screening, primary clarification, activated sludge using biological nutrient removal (BNR), secondary clarification, deep-bed
filtration, ultraviolet (UV) disinfection, cascade aeration, centrifugal thickening, anaerobic digestion, and centrifugal dewatering. Since the start-up of the WRC, the facility has consistently achieved excellent performance and has received the American Metropolitan Sewerage Authority's
Platinum Award for 5 years of consecutive permit compliance. Although the Utoy Creek WRC was designed to meet more restrictive nutrient removal limits, the Georgia Environmental Protection Division (EPD) may decrease the plant's effluent limits in the future. A capacity analysis, using
BioWin™ modeling, was recently completed to determine the ability of the plant to meet potentially lower limits. These results, as well as an overview of the Utoy Creek WRC and historical effluent performance, will be presented.
Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.