Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Isolation or concentration of organic substances from water : an evaluation of reverse osmosis concentration /
Author Lynch, S. C. ; Smith, J. K. ; Rando, L. C. ; Yauger, W. L.
CORP Author Gulf South Research Inst., New Orleans, LA.;Health Effects Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency,
Year Published 1984
Report Number EPA/600/1-84/018; EPA-68-03-2999
Stock Number PB85-124147
Subjects Water--Purification--Membrane filtration. ; Water--Pollution--United States. ; Organic water pollutants--United States.
Additional Subjects Water treatment ; Organic compounds ; Potable water ; Separation ; Membranes ; Cellulose acetate ; Dialysis ; Reverse osmosis ; FT-30 polymers
Library Call Number Additional Info Location Last
NTIS  PB85-124147 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 201 pages : illustrations ; 28 cm
This study describes the development and evaluation of a reverse osmosis (RO)/Donnan dialysis system to be used in the preparation of drinking water concentrates for biological testing. Two reverse osmosis membranes, cellulose acetate (Osmonics, Inc.) and FT-30 (Film Tec, Inc.), were selected for laboratory evaluation, primarily because of their purported short-term chlorine resistance. Two Donnan membranes, Nafion (Dupont) and MA 3475 (IONAC), were chosen for further study based upon their chemical resistance characteristics (chlorine, caustic, and acid tolerance). The FT-30 membrane, a thin-film composite, demonstrated a substantially greater rejection efficiency for the model compounds than the cellulose acetate membrane. As expected from the rejection data, the recoveries of model solutes were much better for the FT-30 membrane system than the cellulose acetate system. Overall the recovery values (2-74%) were poor for the majority of model compounds in both RO systems and substantially less than anticipated based on the rejection data.
"November 1984." "Final report." "EPA/600-1-84/018." Microfiche.