Record Display for the EPA National Library Catalog

RECORD NUMBER: 92 OF 621

OLS Field Name OLS Field Data
Main Title Evaluation of Organic Contamination of Water by Reverse Osmosis Concentration System.
Author Hughes, B. Mason ; Hedley, William H. ; Lynch, Stephen C. ;
CORP Author Monsanto Research Corp., Dayton, OH.;Industrial Environmental Research Lab.-Cincinnati, OH.
Year Published 1982
Report Number EPA-68-03-2550; EPA-600/7-82-007;
Stock Number PB82-235995
Additional Subjects Organic compounds ; Water pollution control ; Membranes ; Chemical analysis ; Water analysis ; Sampling ; Water wells ; Concentration(Composition) ; Gas chromatography ; Mass spectroscopy ; Reverse osmosis
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB82-235995 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 29p
Abstract
The objective of this program was to determine whether the membrane or other components of the reverse osmosis system used to concentrate water samples for health effects testing was itself adding significant quantities of organic impurities to them. Two batches of very pure, low organic-content water from Well 4, Villa West, in Hammond, Louisiana, were concentrated using this system and both the raw water and the concentrates were analyzed by glass capillary gas chromatography/mass spectrometry. The analyses showed that chromatographable, organic contaminants in the 1-10 ppb range, (consisting mainly of silicones and phthalates) were present in sample concentrates and blanks. It is concluded that the reverse osmosis systems used do not contribute chromatographable organic pollutants in the processed waters at concentrations exceeding 10 ppb.