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Evaluation of aeration/circulation as a lake restoration technique

Author: Robert A PastorokThomas C GinnMarc W LorenzenUnited States. Environmental Protection Agency. Office of Water Regulations and Standards. Criteria & Standards Division.Corvallis Environmental Research Laboratory.All authors
Publisher: Corvallis, Or. : Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 1981.
Edition/Format:   Print book : National government publication : EnglishView all editions and formats
Database:WorldCat
Summary:
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  Read more...
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Additional Physical Format: Online version:
Pastorok, Robert A.
Evaluation of aeration/circulation as a lake restoration technique.
Corvallis, Or. : Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 1981
(OCoLC)949841204
Material Type: Government publication, National government publication, Internet resource
Document Type: Book, Internet Resource
All Authors / Contributors: Robert A Pastorok; Thomas C Ginn; Marc W Lorenzen; United States. Environmental Protection Agency. Office of Water Regulations and Standards. Criteria & Standards Division.; Corvallis Environmental Research Laboratory.; Tetra Tech, Inc.
OCLC Number: 7682685
Notes: "Tetra Tech, inc."
"Research and development, evaluation of aeration circulation as a lake restoration technique"--Cover.
"Prepared for Office of Water Regulations and Standards, Criteria and Standards Division"--Cover.
"Prepared by Environmental Research Laboratory, Office of Research and Development"--Cover.
"February 1981."
"R 80-56-72."
"EPA-600/3-81-014."
"Project Officer: Spencer A. Peterson."
Description: vi, 58 pages : illustrations ; 28 cm
Responsibility: by Robert A. Pastorok, Thomas C. Ginn, and Marc W. Lorenzen.

Abstract:

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.

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