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Aerobic Digester Upgrade Builds on Successful Aerobic/Anoxic and Elevated Temperature Operation

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Abstract:

The Town of Purcellville (TOP), located in Virginia, Basham Simms wastewater facility (WWF) liquid process train was upgraded to a membrane bioreactor and brought the permitted capacity of the facility from 1.0 to 1.5 million gallons per day (mgd). Two major additions to the solids side of the process are new solids handling facilities including mechanical thickening and dewatering, and expansion of the aerobic digestion. The wastewater facility incorporates aerobic/anoxic operation of the digestion system as well as solids thickening to control digester temperature. This paper provides information related aerobic digestion process optimization and blowers energy savings.

Keywords: Aerobic; Anoxic; Denitrification; Digestion; Nitrification; Temperature; operation

Document Type: Research Article

DOI: https://doi.org/10.2175/193864711802863067

Publication date: 2011-01-01

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