Research Article
Aug 1971
Diffusion of Sewage Effluent from Ocean Outfall
Publication: Journal of the Sanitary Engineering Division
Volume 97, Issue 4
Abstract
Full scale diffusion experiments were conducted during August and December 1968 to estimate coliform bacteria concentration patterns of sewage effluent from an ocean outfall located at Pompano Beach, Florida. The experiments included measurements of near-shore currents, estimates of turbulent diffusion of the sewage effluent and the determination of natural die-off of coliform bacteria. It was found that the near-shore currents are predominantly towards the North with fluctuations in speeds produced by the meandering of the Florida Current, by wind and tidal effects, and by inlet waters. The diffusion data indicate that for the travel times of interest, concentrations can be reduced by a factor of 1000 or more. Coliform bacteria die-off rates were found to be approximately two orders of magnitude greater during the summer months than during the winter. A model was developed to predict downstream concentration patterns and the results can be used to assess future ocean outfall installations.
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Information
Published In
Journal of the Sanitary Engineering Division
Volume 97 • Issue 4 • August 1971
Pages: 485 - 503
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Aug 1971
Published online: Feb 12, 2021
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Authors
Affiliations
Robert E. Stewart
Assoc. Prof. of Environmental and Mech. Engrg., Mech. Engrg. Dept., Univ: of Louisville, Louisville, Ky.
Hugh D. Putnam
Vice Pres., Environmental Engrg. Inc., Gainesville, Fla.
Richard H. Jones
Vice Pres., Environmental Engrg. Inc., Gainesville, Fla.
Thomas N. Lee
Qceanographer, Florida Ocean Sciences Inst., Deerfield Beach, Fla.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.