Research Article
Apr 1970
Statistical Assessment of DO in Navigation Pool
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VIEW THE REPLYPublication: Journal of the Sanitary Engineering Division
Volume 96, Issue 2
Abstract
Regression equations, relating time-of-travel and average pool temperature to the average and minimum pool dissolved oxygen concentrations, are developed for predicting DO in the LaGrange Pool in the Illinois River. Time-of-travel values through the pool are determined by a volume displacement method programmed on a digital computer. Data is presented to demonstrate the effect the detention time in the pool has on the DO. The correlation between DO and biochemical oxygen demand (BOD) is found to be low, which precludes the use of a BOD factor in the prediction equations. An exponential model is found to best represent the relationship between the variables. During low summer flows, time-of-travel is found to have approximately three times more effect on the DO than does the temperature. Using the prediction equations, the effect of the DO of increasing the navigation channel depth is demonstrated. Nitrification is found to be a significant cause of oxygen depletion. A method for establishing a quality control chart for analyzing continuously generated DO data is presented.
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Published In
Journal of the Sanitary Engineering Division
Volume 96 • Issue 2 • April 1970
Pages: 477 - 500
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Apr 1970
Published online: Feb 12, 2021
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Authors
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Thomas A. Butts, AM.ASCE
Assoc. Prof. of Sei., Illinois State Water Survey, Peoria, Ill.
Donald H. Schnepper
Prof. of Sci., Illinois State Water Survey, Peoria, Ill.
Ralph L. Evans
Head, Water Quality Section, Illinois State Water Survey, Peoria, Ill.
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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.
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.