Record Display for the EPA National Library Catalog


Main Title Use of Chemical Additives to Improve Aeration Rates. Preliminary Study of Models.
Author Zieminsk, Stefan A. ; Ra, Martin E. ;
CORP Author Maine Univ., Orono.
Year Published 1966
Report Number R-848-2b; PHS-WP-00562;
Stock Number PB-216 548
Additional Subjects ( Aerators ; Mass transfer) ; ( Dissolution ; Aeration) ;
Library Call Number Additional Info Location Last
NTIS  PB-216 548 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 35p
Previous investigations conducted with porous plates have shown that some organic substances present, in minute quantities, in an aerated mixture increase the interfacial surface area (A) to such an extent that despite the reduced mass transfer coefficient (K sub L) the total rate of oxygen transfer (K sub L) can be considerably increased. The report deals with a preliminary investigation of three different models of aerators in which the organic agent was introduced at different rates of flow and concentrations. The objective of the tests was to obtain some information about the effects of these variables on quantities such as the bubble diameter, the interfacial area, the mass transfer coefficient, and the total rate of oxygen transfer. (Author Modified Abstract)