Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Reverse osmosis treatment to remove inorganic contaminants from drinking water /
Author Huxstep, Martin R. ; Sorg, T. J. ; Love, Jr, O. T.
Other Authors
Author Title of a Work
Sorg, Thomas J.
CORP Author Municipal Environmental Research Lab., Cincinnati, OH.
Publisher U.S. Environmental Protection Agency, Water Engineering Research Laboratory,
Year Published 1984
Report Number EPA/600/D-84/198
Stock Number PB84-223528
Subjects Reverse osmosis. ; Drinking water--Contamination.
Additional Subjects Water treatment ; Inorganic compounds ; Membranes ; Industrial waste treatment ; Water pollution control ; Field tests ; Potable water ; Organic compounds ; Ground water ; Concentration(Composition) ; Performance evaluation ; Water quality ; Polymeric films ; Composite materials ; Reverse osmosis ; Volatile organic compounds
Library Call Number Additional Info Location Last
NTIS  PB84-223528 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 24 pages ; 28 cm
Because of the versatility of reverse osmosis for removing a wide range of contaminants, U.S. EPA (Drinking Water Research Division) has been conducting laboratory and field studies to determine its effectiveness on specific inorganic and organic contaminants of concern to the water supply industry. Laboratory and field studies for the removal of specific inorganic contaminants have shown that most of the contaminants listed in the EPA drinking water regulations are highly rejected (greater than 90%) while a few contaminants, such as fluoride, nitrate, and arsenic III, are only moderately rejected. Also, tests with different membranes showed only minor differences in removals. Laboratory studies using cellulose and nylon amide membranes have shown less than 25% rejection of volatile organic compounds. A thin film composite membrane, on the other hand, looked very encouraging in short duration (less than 4 hours) tests for removing VOCs. However, when the thin film composite membrane was exposed to contaminated ground water for a longer term, certain VOCs, primarily unsaturated and aeromatic compounds, permeated the membranes within 12 to 16 hours. Thus, the future for RO in controlling VOCs is uncertain.
Caption title. "July 1984." "EPA/600/2-87/109." Microfiche.