Dissolved oxygen and nitrogen content. Can you help?

An IWP&DC reader has requested technical information regarding dissolved oxygen and nitrogen content in the tailwater of impulse turbines. Visitors to the IWP&DC wesbite have been able to provide the following information:

Tennessee Valley Authority in the US has many facilities with oxygen equipment which include turbine venting, surface water pumps and oxygen diffuser systems. All of these are used in an effort to maintain a desired dissolved oxygen level in the tailwater.

EPRI WIll initiate a project in 2001 to review the state-of-the-art in mitigating dissolved oxygen problems at hydro projects and will prepare a report called Meeting Dissolved Oxygen Water Quality Standards: Status Report. This effort will update a report on the same subject published by EPRI in 1990.

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