Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluation of Fine-Bubble Alpha Factors in Near Full-Scale Equipment.
Author Hwang, H. J. ; Stenstrom, M. K. ;
CORP Author California Univ., Los Angeles.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1985
Report Number EPA/600/J-85/373;
Stock Number PB86-187390
Additional Subjects Activated sludge process ; Oxygen ; Diffusers ; Sludge treatment ; Dissolved gases ; Bubbles ; Mathematical models ; Aeration tanks ; Pilot plants ; Depth ; Liquids ; Tests ; California ; Diagrams ; Mass transfer ; Reprints ; Mixed liquors
Library Call Number Additional Info Location Last
NTIS  PB86-187390 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 12p
In the study of oxygen transfer using fine-bubble diffusers in the presence of wastewater contaminants and surfactants, an experimental method and mathematical models were developed that can handle rapidly changing water quality under process conditions. The models were verified experimentally with tap water containing surfactants and activated-sludge mixed liquor. The pilot-scale aeration column with full-scale liquid depth under operating condition could be used to simulate the full-scale aeration tank. The variation of alpha factor in the mixed liquor can be explained by a readily measured variable, microbial oxygen uptake.