A Guide to Aeration/circulation Techniques for Lake Management
Author | : Marc Lorenzen |
Publisher | : |
Total Pages | : 146 |
Release | : 1977 |
Genre | : Cyanobacterial blooms |
ISBN | : |
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Author | : Marc Lorenzen |
Publisher | : |
Total Pages | : 146 |
Release | : 1977 |
Genre | : Cyanobacterial blooms |
ISBN | : |
Author | : Marc Lorenzen |
Publisher | : |
Total Pages | : 126 |
Release | : 1977 |
Genre | : Eutrophication |
ISBN | : |
Author | : Robert A. Pastorok |
Publisher | : |
Total Pages | : 68 |
Release | : 1981 |
Genre | : Eutrophication |
ISBN | : |
Artificial circulation and hypolimnetic aeration are management techniques for oxygenating eutrophic lakes subject to water quality problems, algal blooms, and fishkills. Artificial circulation is achieved by injecting diffused air into lower waters, by mechanical pumping of water from one depth stratum to another, or by inducing turbulence at the surface using large axial-flow pumps. In contrast, hypolimnetic aeration by air or oxygen injection affects primarily bottom waters. In some instances low dissolved oxygen concentrations persist in the metalimnion. In general, both methods lower the concentrations of reduced compounds in lake waters, providing benefits for water supply systems. Aeration may cause supersaturation of nitrogen gas, thereby raising the potential danger of gas bubble disease in downstream fishes.
Author | : Robert A. Pastorok |
Publisher | : |
Total Pages | : 0 |
Release | : 1981 |
Genre | : Eutrophication |
ISBN | : |
Artificial circulation and hypolimnetic aeration are management techniques for oxygenating eutrophic lakes subject to water quality problems, algal blooms, and fishkills. Artificial circulation is achieved by injecting diffused air into lower waters, by mechanical pumping of water from one depth stratum to another, or by inducing turbulence at the surface using large axial-flow pumps. In contrast, hypolimnetic aeration by air or oxygen injection affects primarily bottom waters. In some instances low dissolved oxygen concentrations persist in the metalimnion. In general, both methods lower the concentrations of reduced compounds in lake waters, providing benefits for water supply systems. Aeration may cause supersaturation of nitrogen gas, thereby raising the potential danger of gas bubble disease in downstream fishes.
Author | : James A. Gore |
Publisher | : CRC Press |
Total Pages | : 370 |
Release | : 2018-01-18 |
Genre | : Science |
ISBN | : 1351086499 |
Researchers and managers of regulated river systems will find this volume useful in acquiring information for deciding an integrated management plan for regulated river operations. Rather than the ecological theory of impacts of flow regulation, emphasis has been placed on methods to predict water quality and habitat alterations, as well as techniques to mitigate impacts from various operational scenarios. Although most chapters refer to impacts of riverine impoundments, these alternatives apply to any regulated situation in which changes in water quality or flow pattern occur. The predictive modeling techniques are explained primarily from a theoretical background. However, extensive bibliographies can guide the uninitiated to specific texts and software. Where controversial techniques have been presented, alternate methods are also described. Major topic areas include water quality problems, channel modification and management, ecological modeling and management, as well as a section on perspectives for ecological management and special problems in developing nations.
Author | : United States. Environmental Protection Agency |
Publisher | : |
Total Pages | : 848 |
Release | : 1993 |
Genre | : Coastal zone management |
ISBN | : |