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RECORD NUMBER: 469 OF 496

OLS Field Name OLS Field Data
Main Title Volatilization of organic pollutants in wastewater treatment : model studies /
Author Roberts, P. V. ; Munz, C. ; Daendliker, P. ; Matter-Mueller, C.
Other Authors
Author Title of a Work
Munz, C.
Daendliker, P.
Matter-Mueller, C.
CORP Author Stanford Univ., CA. Dept. of Civil Engineering.;Municipal Environmental Research Lab., Cincinnati, OH.
Publisher U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory,
Year Published 1984
Report Number EPA/600/2-84/047; EPA-R-806631
Stock Number PB84-158856
Additional Subjects Air water interactions ; Aeration ; Mathematical models ; Water pollution control ; Mass transfer ; Surfaces ; Air pollution ; Henrys law ; Laboratory equipment ; Volatile organic compounds ; Publicly owned wastewater treatment ; Numerical solution
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB84-158856 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 172 pages ; 28 cm
Abstract
Methods are presented for simulating the transfer of volatile organic contaminants to the atmosphere during surface and bubble aeration. Suitable values of the input parameters for conditions representative of activated sludge treatment are suggested, and model calculations are presented. The effects of important variables such as oxygen transfer requirement, the solute's Henry coefficient, and the oxygen transfer efficiency are illustrated by the calculations. Transfer of volatile organics to the atmosphere is to predicted to be substantially greater in surface aeration than in bubble aeration for a given oxygen transfer rate under conditions of practical interest. This difference is attributed to greater saturation of the gas phase in bubble aeration, compared to surface aeration. The transfer of organic solutes to the atmosphere in bubble aeration decreases with increasing oxygen transfer efficiency, if the oxygen transfer requirement is held constant, as a consequence of the concomitant decrease in the required air flow rate.
Notes
"February 1984." Microfiche.