Record Display for the EPA National Library Catalog


Main Title Extended aeration sewage treatment in cold climates /
Author Coutts, Harold J.,
Other Authors
Author Title of a Work
Christianson, C. D.
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
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 660-2-74-070 c.1 Headquarters Library/Washington,DC 09/18/2013
ELBD ARCHIVE EPA 660-2-74-070 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023 DISPERSAL
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.
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.
"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.