Tailwater Concerns and the History of Turbine Aeration

by Charles E. Bohac, Tennessee Valley Authority, Chattanooga, United States,
Richard J. Ruane, Tennessee Valley Authority, Chattanooga, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


All new proposals for hydropower development and many of the almost 300 hydroelectric projects which will be relicensed before 2000 will have to address the issue of minimum dissolved oxygen concentrations. This paper highlights some of the causes and concerns of low dissolved oxygen concentrations in releases from hydropower projects and describes the history of hydroturbine aeration for reaerating these releases.

Subject Headings: Aeration | Hydro power | Turbines | Dissolved oxygen | Tailwater | History | Power plants | Water pollution

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