Record Display for the EPA National Library Catalog


Main Title Hydrodynamic flux control for waste water application of hyperfiltration systems /
Author Thomas, D. G., ; Gallaher., Richard B.
Other Authors
Author Title of a Work
Gallaher, Richard B.
Johnson, James Stephen.
CORP Author Oak Ridge National Lab., Tenn.
Publisher U.S. Environmental Protection Agency, National Environmental Research Center,
Year Published 1973
Report Number EPA-R2-73-228; DI-14-12-896; EPA-17020-FEV
Stock Number PB-222 005
OCLC Number 00849424
Subjects Sewage--Purification ; Membranes (Technology) ; Hydrodynamics ; Cellulose acetate ; Sewage--Purification--Reverse osmosis
Additional Subjects Osmosis ; Sewage treatment ; Cellulose acetate ; Membranes ; Performance evaluation ; Flux(Rate) ; Flow rate ; Numerical analysis ; Reverse osmosis ; ORM
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA R2-73-228 Headquarters Library/Washington,DC 11/15/2013
ELBD ARCHIVE EPA R2-73-228 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA R2-73-228 AWBERC Library/Cincinnati,OH 07/30/1999
NTIS  PB-222 005 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ix, 80 pages : illustrations, figures, tables ; 28 cm
The effect of hydrodynamics of flux decline of cellulose acetate hyperfiltration (reverse osmosis) membranes was studied using primary effluent from the Oak Ridge East Sewage Plant as feed. The system contained multiple, annular-geometry housings which could be operated simultaneously at different velocities with the same feed. The range of fluxes studied was from 2 to 150 gal./sq ft a day and axial velocities ranged from 3 to 30 ft/sec. System pressure was 600 psig. The results demonstrate that there is a threshold velocity above which flux decline is markedly smaller than at lower velocities. In scouting studies, addition of a flocculant appeared to markedly reduce the threshold velocity. For the initial 200-300 hours of those tests with primary sewage effluent as feed and in which the axial velocity was above the threshold velocity, the flux decline parameter was determined. (Modified author abstract)
"May 1973." "Project No. 17020." "Contract No. 14-12-896." "Prepared for Office of Research and Monitoring, U.S. Environmental Protection Agency." Includes bibliographical references (pages 79-80).