Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Reactions of a Strongly Basic Ion Exchange Resin with Dilute Aqueous Solutions in a Columnar System.
Author Midkif, William S. ; Weber, J, Walter J. ;
CORP Author Michigan Univ., Ann Arbor. Div. of Sanitary and Water Resources Engineering.
Year Published 1969
Report Number T-69-4; OWRR-A-013-MICH; 08391; A-013-MICH(1)
Stock Number PB-199 643
Additional Subjects ( Sewage treatment ; Ion exchanging) ; ( Ion exchanging ; Chemical engineering) ; ( Anion exchanging ; Chemical engineering) ; Water treatment ; Phosphates ; Nitrates ; Sulfates ; Nutrients ; Fouling ; Mathematical models ; Chemical reactions ; Water reclamation ; Columns(Process engineering) ; Ion exchange resins ; Fluid flow ;
Library Call Number Additional Info Location Last
NTIS  PB-199 643 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 144p
The report discusses the results on an engineering evaluation of the use of ion exchange for removal of selected anions from wastewater. The research extended to the technology of water conservation with respect to upgrading the quality of municipal wastewater treatment plant secondary effluents and storm runoffs for reuse. High molecular weight is not a significant factor in fouling or operational interference of a strongly basic anion exchange resin. An organic species must be a counterion before it will penetrate the strong-base resin pore structure to cause fouling. No significant difference in performance was indicated when the one inch column was compared to a column with nine times the surface area. A reaction zone in the column defines the limit of bed depth. As bed depth is increased, chromatographic separation of the ions becomes more prominent. The separate zones become more concentrated and reverse exchange as well as concentration of the less selective ions is enhanced. A mathematical model has been applied, a modification of one developed by Gleuckauf, combining the effects of equilibrium and kinetics. Analysis of the solute data shows that the more selective the ion, the sharper is the front and the shorter is the reaction zone. The lengths of the reaction zones are in the inverse order from the selectivities. Sulfate has the sharpest front and is followed by phosphate and nitrate. (WRSIC abstract)