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RECORD NUMBER: 117 OF 158

OLS Field Name OLS Field Data
Main Title Removal of uranium from drinking water by ion exchange and chemical clarification /
Author Hanson, S. W. ; Wilson, D. B. ; Gunaji, N. N.
Other Authors
Author Title of a Work
Hanson, Steven W.
CORP Author New Mexico State Univ., Las Cruces. Engineering Research Center.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Publisher Water Engineering Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1987
Report Number EPA/600/2-87/076
Stock Number PB88-102900
Subjects Trace elements in water. ; Water--Purification.
Additional Subjects Uranium ; Ion exchanging ; Potable water ; Clarification ; Chemical removal(Water treatment) ; Foreign technology
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB88-102900 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 71 pages ; 28 cm
Abstract A pilot demonstration was conducted of ion exchange and chemical clarification equipment for removing uranium from drinking water. Four commercial-type ion exchange columns and a prefiltering and regeneration solution system were constructed along with a pilot-scale chemical clarification unit. The four ion exchange columns each contained 2 cu ft. of resin. Three different ion exchange resins were used. Resin capacity for uranium was represented by 12,000 to 20,000 bed volumes. The 1-gal/min chemical clarification unit consisted of a rapid-mix tank and precoat rotary vacuum filter. The unit was operated continuously for 3 months at pH values of 6 to 10 and ferric chloride concentrations of 15 to 40 mg/L. Greater than 99% removal of uranium was achieved when operating at 30 mg/L ferric chloride and pH 10. The diatomaceous earth precoat filter achieved complete solid-liquid separation. In addition to the pilot study, the report analyzes several currently operating water treatment systems whose feed supplies contain uranium.
Notes "September 1987." Project 1983-1986. Microfiche.
Place Published Cincinnati, Ohio :
Supplementary Notes Sponsored by Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Corporate Au Added Ent Water Engineering Research Laboratory.
PUB Date Free Form 1987.
NTIS Prices PC A04/MF A01
BIB Level m
Cataloging Source OCLC/T
OCLC Time Stamp 20020115135053
Language eng
Origin NTIS
Type MERGE
OCLC Rec Leader 01047nam 2200265Ka 45020