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RECORD NUMBER: 149 OF 186

OLS Field Name OLS Field Data
Main Title Prediction of selectivity for activated carbon adsorption of trace organic (homologue) contaminants /
Author Belfort, G. ; Lee, C. S. ; Weigand, R. J. ; Neuhaus, D. M.
Other Authors
Author Title of a Work
Belfort, Georges.
CORP Author Rensselaer Polytechnic Inst., Troy, NY.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Publisher U.S. Environmental Protection Agency, Water Engineering Research Laboratory,
Year Published 1985
Report Number EPA/600/2-85/093; EPA-R-809686
Stock Number PB85-243160
Subjects Organic water pollutants. ; Adsorption. ; Carbon, Activated.
Additional Subjects Organic compounds ; Adsorption ; Selectivity ; Prediction ; Contaminants ; Granular activated carbon treatment ; Waste recycling ; Solid wastes
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB85-243160 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 83 pages : illustrations ; 28 cm
Abstract
Preferential adsorption of organic compounds onto activated carbon from dilute aqueous solutions was studied to develop a comprehensive theoretical basis for predicting adsorption of multicomponent solutes. The authors investigated in this research program a comparison of different carbons, the adsorption behavior with variable aqueous solution properties, and the difference between gas and liquid phase adsorption. The overall objective was to develop and test the comprehensive solvophobic theory. Experimental adsorption isotherms of a series of alcohols on five different carbons were measured and compared. Isotherms were run for 4-n-propyl phenol at various concentrations of ammonium sulfate salt and methanol as the additives to increase or decrease surface tension of solution, respectively. Also, isotherms for three linear carboxylic acids were measured at different pHs to determine the effect on adsorption. An experimental-glass vacuum system has been designed and built to measure adsorption isotherms in the gas phase. A comparison of measurements of adsorption isotherms for four alcohols in the aqueous and gas phases was conducted and confirmed the theoretical model.
Notes
Caption title. "July 1985." "EPA/600/2-85/093." Microfiche.