Bubbles as a Means for the Deaeration of Water Bodies
Publication: Journal of Environmental Engineering
Volume 143, Issue 8
Abstract
Occasional dissolved-air supersaturation—such as may occur, for instance, downstream of dams—is harmful to fish because it causes gas bubble disease. A counterintuitive but effective means of reducing dissolved air content is the injection of bubbles in the supersaturated water. The bubbles greatly increase the air–water surface area available for the exsolution of the dissolved air, bring the interface into direct contact with the supersaturated water, and mix the water with their ascensional motion. This paper is a computational study of the process. The results suggest that the method has great potential and may be effective in applications.
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Acknowledgments
The authors are grateful to Prof. Joe Katz for useful discussions. This work has been supported by Grant No. R14AP00151 from the U.S. Bureau of Reclamation.
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Information
Published In
Journal of Environmental Engineering
Volume 143 • Issue 8 • August 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jun 11, 2016
Accepted: Nov 9, 2016
Published online: Mar 31, 2017
Published in print: Aug 1, 2017
Discussion open until: Aug 31, 2017
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