Record Display for the EPA National Library Catalog

RECORD NUMBER: 58 OF 280

OLS Field Name OLS Field Data
Main Title Evaluation of aeration/circulation as a lake restoration technique /
Author Pastorok, Robert A.
Other Authors
Author Title of a Work
Ginn, Thomas C.
Lorenzen, Marc W.
CORP Author Tetra Tech, Inc., Bellevue, WA.;Corvallis Environmental Research Lab., OR.
Publisher Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1981
Report Number EPA-600/3-81-014; EPA-R-805672
Stock Number PB81-191884
OCLC Number 07682685
Subjects Lakes--Aeration. ; Eutrophication.
Additional Subjects Aeration ; Water pollution control ; Lakes ; Pumping ; Mixing ; Oxygen ; Circulation ; Axial flow pumps ; Supersaturation ; Fishes ; Nitrogen ; Mortality ; Gases ; Oxygenation ; Performanance evaluation ; Eutrophication ; Gas bubble diseases ; Hypolimnion
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101LKDH.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EHAD  EPA 600-3-81-014 Region 1 Library/Boston,MA 04/10/2014
EIAD  EPA-600/3-81-014 Region 2 Library/New York,NY 04/21/2006 DISPERSAL
EJBD ARCHIVE EPA 600-3-81-014 Headquarters Library/Washington,DC 04/21/2014
EJBD  EPA 600-3-81-014 Headquarters Library/Washington,DC 03/29/2016
EKAM  QP82.2.P6E2 600, 1981, no.014 Region 4 Library/Atlanta,GA 05/27/1994
ESAD  EPA 600-3-81-014 Region 10 Library/Seattle,WA 03/23/2010
ESBD  EPA-600-3-81-014 CPHEA/PESD Library/Corvallis,OR 09/05/2017
NTIS  PB81-191884 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation vi, 58 pages : illustrations ; 28 cm
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 mechanial 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.
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." Includes bibliographical references (pages 48-58). "R 80-56-72." "EPA-600/3-81-014." "Project Officer: Spencer A. Peterson."
Contents Notes
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.