Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Selenium Oxidation and Removal by Ion Exchange.
Author Boegel, J. V. ; Clifford, D. A. ;
CORP Author Houston Univ., TX. Dept. of Civil Engineering.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1986
Report Number EPA/600/2-86/031;
Stock Number PB86-171428
Additional Subjects Ground water ; Selenium ; Ion exchanging ; Water pollution control ; Removal ; Oxidation ; Anion exchanging ; pH ; Concentration(Composition) ; Chemical reactions ; Atomic spectroscopy ; Adsorption ; Separation ; Chlorine ; Experimental data ;
Library Call Number Additional Info Location Last
NTIS  PB86-171428 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 78p
Strong-base anion exchange was evaluated as a process for the removal of trace quantities of selenium from groundwater. The efficiency of the process was found to be dependent on the oxidation state of selenium, with the selenate anion (Se(VI)) having a greater affinity for the anion-exchange resin than selenite or biselenite anions (Se(IV)). An analytical method was developed to measure the concentrations of Se(IV) and Se(VI) (i.e., to determine the speciation of selenium) at trace concentrations in groundwater. The oxidation of Se(IV) to Se(VI) at trace concentration in groundwater was studied with this new analytical method.