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Open Access NYCDEP: Design Elements for Reliable Nutrient Removal Operation at the Bowery Bay WPCP

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Abstract:

The Bowery Bay WPCP is a conventional secondary treatment plant owned and operated by the New York City Department of Environmental Protection (NYCDEP) in Queens, New York. The plant discharges into nutrient sensitive Long Island Sound (LIS). As a result of increasingly stringent effluent total nitrogen (TN) discharge standards to the LIS, the NYCDEP authorized and executed a major plant upgrade to the Bowery Bay WPCP, including upgrades to the step-feed biological nutrient removal (BNR) process. These upgrades are aimed at maximizing the nitrogen removal within the available plant infrastructure. The nitrogen facilities have been designed to produce a TN of 10 mg/L or less, a 63% reduction in nitrogen discharges over preconstruction conditions.

This paper will present innovative upgrades to the plant including wet weather operation; foam and bulking control; isolation and transport baffles and wye-wall reconstruction; surface wasting system and anoxic zone mixers.

Keywords: BNR; BOWERY BAY WPCP; INVENT MIXERS; NOCARDIOFORMS FOAMING; NYCDEP; SURFACE WASTING

Document Type: Research Article

DOI: https://doi.org/10.2175/193317709X12526968736131

Publication date: 2009-10-01

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