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The use of a single-unit, single-zone submerged attached growth bioreactor (SAGB) for the combined removal of carbonaceous organics and nitrogen from a municipal wastewater was demonstrated. A nitrification efficiency of 97% was achieved at a total organic loading of 3.47 kg-bCOD/m3–day.
The total nitrogen loading varied from 0.2 kg-N/m3–day to 0.3 kg-N/m3–day, and resulted in effluent total nitrogen concentrations ranging from 4.2 mg/L to 8.5 mg/L. Concurrent denitrification was achieved at rates ranging from 0.077 kg-N/m3–day
to 0.29 kg-N/m3–day. This single-unit SAGB, by providing dual treatment capacities, represents a cost-effective option that is particularly attractive for facilities with limited space and budget for system upgrade.
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 These proceedings are not peer reviewed.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.