Full Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effects of Water Temperature and Elevation upon Aeration.
Author Hunte, John S. ; War, John C. ;
CORP Author Colorado State Univ., Fort Collins. Dept. of Civil Engineering.
Year Published 1973
Report Number DI-14-31-0001-3506; OWRR-A-007-Colo.; 00699,; A-007-Colo(3)
Stock Number PB-224 814
Additional Subjects ( Aeration ; Temperature) ; ( Elevation ; Aeration) ; Dissolved gases ; Oxygen ; Altitude ; Atmospheric pressure ; Sewage treatment ; Mathematical models ;
Library Call Number Additional Info Location Last
NTIS  PB-224 814 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 51p
Abstract A laboratory-scale mechanical aeration system was used to examine the variation in oxygen transfer rates into water as a function of water temperature. This research was done to study sewage treatment aeration systems at various altitudes. The over-all volumetric mass transfer coefficient, liquid phase base, increased linearly with water temperature at a rate of 2.84% per degree C. The relative aeration efficiency decreases with increasing elevation, water temperature, and dissolved oxygen concentration. For zero dissolved oxygen and elevation, the rate of oxygen transfer per unit volume and time is independent of water temperature for 0 to 50C. Equations were developed relating saturation dissolved oxygen concentration to temperature and atmospheric pressure to elevation and air temperature. An equation was developed for predicting average annual air temperature (for locations in the U.S.) from elevation, longitude, and latitude. (Author)
Supplementary Notes Presented at the Symposium on Wastewater Treatment in Cold Climates, Saskatchewan Univ., Saskatoon, 22 Aug 73.
NTIS Title Notes Research rept..
PUB Date Free Form 22 Aug 73,
Category Codes 7D; 13B; 99F; 68D
NTIS Prices PC A04/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326568290
Origin NTIS
Type CAT