| Main Title |
Extended aeration sewage treatment in cold climates / |
| Author |
Coutts, Harold J.,
|
| Other Authors |
|
| Publisher |
National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1974 |
| Report Number |
EPA-660/2-74-070 |
| Stock Number |
PB-240 350 |
| OCLC Number |
01282888 |
| Subjects |
Sewage--Purification--Cold weather conditions ;
Sewage--Purification--Biological treatment ;
Water--Pollution--Cold weather conditions
|
| Additional Subjects |
Sewage treatment ;
Cold weather tests ;
Alaska ;
Aeration ;
Clarifiers ;
Settling ;
Design criteria ;
Activated sludge process ;
Performance evaluation ;
Biochemical oxygen demand ;
Coliform bacteria ;
Nutrients ;
Subarctic regions
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD ARCHIVE |
EPA 660-2-74-070 |
|
Headquarters Library/Washington,DC |
06/11/2012 |
| EJBD |
EPA 660-2-74-070 |
c.1 |
Headquarters Library/Washington,DC |
09/18/2013 |
| ESAD |
EPA 660-2-74-070 |
2 copies |
Region 10 Library/Seattle,WA |
06/03/2016 |
| NTIS |
PB-240 350 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
vii, 81 pages : illustrations ; 27 cm. |
| Abstract |
In an effort to develop design criteria for biological treatment of low temperature domestic sewages, the Arctic Environmental Research Laboratory has designed and operated two parallel low temperature extended aeration units near Fairbanks, Alaska. The two units had exposed aeration basins utilizing submerged aerators and were differentiated by type of clarifier. One unit had conventional horizontal flow clarifier while the other had a modified upflow clarifier with tube settlers. The liquid temperature varied from 0C to 19C. In addition, 0.5 MGD subarctic, oxidation ditch and low temperature bench scale units were studied. Organic loading was the parameter most seriously affected by low temperatures. Other parameters investigated and reported were: (1) Aeration for oxygen transfer and mixing; (2) comparative clarifier performance; (3) nutrient and total coliform removals. |
| Notes |
"December 1974." Includes bibliographical references (pages 78-80). |
| Contents Notes |
Summary of results of efforts to develop design criteria for biological treatment of low temperature domestic sewage, using experimental aeration units in Alaska. |
