Ecological Effects
One of the problems of hydroelectric dams is the periodic reduction of dissolved oxygen in the tailwaters downstream of the dam. Three systems are used at Douglas Dam to improve oxygenation.
- 1. Turbine venting - injection of oxygen at the water turbines.
- 2. Surface water pumps - pumps that push surface water downward to the turbines.
- 3. Water pulsing - periodic release of water through the power turbines to maintain some water flow downstream at all times.
Read more about this topic: Douglas Dam
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