Water-quality modeling of combined sewer overflow effects on Newtown Creek
Abstract:The upstream branches of Newtown Creek, which receive major combined sewer overflow (CSO) discharges, exhibit stratification of salinity, anoxic conditions below the pycnocline, and emission of hydrogen sulfide (H2S) odors throughout the summer. As high sediment oxygen demand (SOD) levels were coincident with these upstream branches, the modeling approach focused on the mechanisms of solids settling, organic carbon flux, and sediment diagenesis for CSO as well as other sources of solids. Extensive field measurements of the CSOs and the water and sediments within Newtown Creek and the adjoining East River were performed to evaluate model parameters and calibrate/verify the models. Continuous simulations of a 4-mon summer period for existing (baseline) conditions and CSO abatement alternatives projected the water-quality improvements that could be expected in the Creek. Because of the extremely low dissolved oxygen (DO) in Newtown Creek, the response to CSO abatement is inhibited, as the model's reaction kinetics would indicate; however, measures that would relieve these conditions and increase DO would also enhance the change in DO achievable through CSO abatement.
Document Type: Research Article
Publication date: September 1, 1996
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- Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year. Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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