||Isolation or concentration of organic substances from water : an evaluation of reverse osmosis concentration /
Lynch, S. C. ;
Smith, J. K. ;
Rando, L. C. ;
Yauger, W. L.
||Gulf South Research Inst., New Orleans, LA.;Health Effects Research Lab., Research Triangle Park, NC.
|| U.S. Environmental Protection Agency,
Water--Purification--Membrane filtration. ;
Water--Pollution--United States. ;
Organic water pollutants--United States.
Water treatment ;
Organic compounds ;
Potable water ;
Cellulose acetate ;
Reverse osmosis ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||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.
||Washington, D.C. :
|Corporate Au Added Ent
||Health Effects Research Laboratory (Research Triangle Park, N.C.) ; Gulf South Research Institute.
|PUB Date Free Form
||PC A10/MF A01
|OCLC Time Stamp
|OCLC Rec Leader
||01192nam 2200301Ka 45020