Record Display for the EPA National Library Catalog

RECORD NUMBER: 23 OF 27

OLS Field Name OLS Field Data
Main Title Removal of Manganese from Mine Drainage by Ozone and Chlorine.
Author Rozelle, Ralph B. ; Swain, Jr., Howard A. ;
CORP Author Wilkes Coll., Wilkes-Barre, Pa.;National Environmental Research Center, Cincinnati, Ohio.
Year Published 1975
Report Number EPA-R-801236; EPA/670/2-75-006;
Stock Number PB-241 143
Additional Subjects Manganese ; Mine waters ; Industrial waste treatment ; Cost estimates ; Manganese oxides ; Oxidation ; Hypochlorites ; Ozone ; Precipitation(Chemistry) ; Solubility ; Water pollution control ; Manganese hydroxides ; Reaction rates
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-241 143 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 57p
Abstract
This research was directed toward an examination of methods by which coal mine water could be treated for removal of manganese. In order to remove manganese from mine water, strong oxidizers must be employed to oxidize it to the (+4) oxidation state in which it is relatively insoluble and will precipitate as MnO2. Both ozone and hypochlorite ion were effective in this oxidation and reduced manganese concentrations to less than 2 mg/l and in some cases to less than 0.05 mg/l. Reaction orders based on initial reaction rates are reported for the manganese (II) at pH values of 2, 4, 6 and 7.9 in the time intervals studied. Solubilities of both manganese (II) hydroxide and manganese (IV) oxide were measured. Cost data were developed for both the ozone and sodium hypochlorite treatment.