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RECORD NUMBER: 32 OF 279

OLS Field Name OLS Field Data
Main Title Calcium carbonate dissolution rate in limestone contactors
Author Letterman, Raymond D.
CORP Author Syracuse Univ., NY.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher U.S. Environmental Protection Agency, Risk Reduction Engineering Laboratory,
Year Published 1995
Report Number EPA/600/R-95/068; EPA-CR-814926
Stock Number PB95-222733
OCLC Number 39388992
Subjects Limestone--Dissolution
Additional Subjects Calcium carbonates ; Dissolving ; Contactors ; Water treatment ; Drinking water ; Kinetics ; Chemical removal(Water treatment) ; Lead(Metal) ; Copper ; Limestone ; Chemical composition ; Design tools
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=30003BO0.PDF
http://www.epa.gov/nrmrl/pubs9879.html
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ELBD  EPA 600-R-95-068 AWBERC Library/Cincinnati,OH 07/02/1998
NTIS  PB95-222733 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 xvii, 95 p. : ill. ; 30 cm.
Abstract
The rate of carbonate mineral dissolution from limestone was studied using a rotating disk apparatus and samples of limestone of varied composition. The purpose of this study was to determine the effect of limestone composition on the kinetics of carbonate mineral dissolution. The results are needed to improve the relationships used to design limestone contactors for long term operation. The stone samples with the highest calcite content and lowest dolomite content had the highest initial rates of dissolution. The overall dissolution rate constant decreased as the amount of calcium dissolved from the surface of the stone increased. Analysis of several stone surfaces indicated that a residue layer of aluminum, silicon and iron formed as calcium dissolved.
Notes
"EPA/600/R-95/068." "Cooperative Agreement No. CR814926." Project Officer : Jeffrey Q. Adams. Includes bibliographical references.