Research Article
Oct 1968
Difference Modeling of Stream Pollution
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VIEW THE REPLYPublication: Journal of the Sanitary Engineering Division
Volume 94, Issue 5
Abstract
Finite-difference methods are developed for the numerical analysis of BOD and dissolved oxygen profiles confined to cases which may be treated as one-dimensional problems. Temporal and spatial variations of hydraulic parameters and sources and sinks of BOD and dissolved oxygen can be incorporated into the models developed. Results obtained by the methods developed compare favorably to the results of available analytical solutions. For estuaries, the methods are applicable to the analysis of the variations of BOD and dissolved oxygen profiles within a tidal cycle. Significant variations of these profiles from those obtained by the commonly used quasi steady-state approach are demonstrated. The spreading which results from the tidal velocity variation is shown to have a significant effect on the BOD and dissolved oxygen profiles. The methods developed should prove useful in studies of estuaries in which the tidal variations are large and the temporal variations in the strengths of the BOD and dissolved oxygen inputs are great.
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Published In
Journal of the Sanitary Engineering Division
Volume 94 • Issue 5 • October 1968
Pages: 995 - 1016
Copyright
© 1968 American Society of Civil Engineers.
History
Published in print: Oct 1968
Published online: Feb 12, 2021
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Authors
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David A. Bella, AM.ASCE
Asst. Prof. of Civ. Engrg., Oregon State University, Corvallis, Ore.
William E. Dobbins, F.ASCE
Prof. of Civ. Engrg., New York University, New York, N.Y.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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.
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.