| Main Title |
Evaluation of aeration/circulation as a lake restoration technique / |
| Author |
Pastorok, Robert A.,
|
| Other Authors |
|
| CORP Author |
Tetra Tech, Inc., Bellevue, WA.;Corvallis Environmental Research Lab., OR. |
| Publisher |
Corvallis 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 |
|
| 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 |
| EJBD |
EPA 600-3-81-014 |
|
Headquarters Library/Washington,DC |
03/29/2016 |
| ELBD ARCHIVE |
EPA 600-3-81-014 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ESAD |
EPA 600-3-81-014 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB81-191884 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
vi, 58 pages : illustrations, figures, tables ; 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 |
"February 1981." Includes bibliographical references (pages 48-58). "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. |
| Place Published |
Corvallis, Or. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Water Regulations and Standards. Criteria & Standards Division.; Corvallis Environmental Research Laboratory.; Tetra Tech, Inc. |
| PUB Date Free Form |
1981 |
| NTIS Prices |
PC A04/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| Merged OCLC records |
1225671828 |
| OCLC Time Stamp |
20170831051403 |
| Language |
eng |
| SUDOCS Number |
EP 1.23:600/3-81-014 |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
03567cam 2200625Ia 45010 |
