You are here:
OXYGEN AERATION AT NEWTOWN CREEK
Citation:
Nash, N., W. Pressman, AND P. Krasnoff. OXYGEN AERATION AT NEWTOWN CREEK. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-79/013 (NTIS PB80159262), 1979.
Description:
A successful initial feasibility investigation of oxygen aeration at the 0.11-cu m/sec (2.5-mgd) municipal wastewater treatment plant in Batavia, New York, prompted a larger demonstration at New York City's 13.6-cu m/sec (310-mgd) Newtown Creek Plant. A 34-mo evaluation was performed in a self-contained set of plant tanks using a 13.6-metric ton/day (15-ton/day) oxygen generator with liquid oxygen backup for oxygen supply and turbine mixers and spargers for oxygen dissolution. For the 34-mo period, at influent flows of 0.44 to 1.53 cu m/sec (10 to 35 mgd), effluent quality averaged 19 mg/l each of BOD and suspended solids for removal efficiencies of 88 and 86 percent, respectively. Removals were not impaired by intentional hydraulic and BOD overloading of the oxygenation system. During the winter months, a fungus in the influent sewage caused the oxygenation system biomass to become filamentous, resulting in a deterioration of sludge settling and thickening characteristics to varying degrees over the three winters of the testing program. While operating difficulties occurred, this condition had no significant effect on the plant effluent quality.