Record Display for the EPA National Library Catalog


Main Title Effect of Molecular Oxygen on Adsorptive Capacity and Extraction Efficiency of Granulated Activated Carbon for Three Ortho-Substituted Phenols.
Author Vidic, R. D. ; Suidan, M. T. ; Sorial, G. A. ; Brenner, R. C. ;
CORP Author Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher c1994
Year Published 1994
Report Number EPA-R816700; EPA/600/J-94/502;
Stock Number PB95-148649
Additional Subjects Oxygen ; Activated carbon treatment ; Phenols ; Adsorption ; Extraction ; Organic compounds ; Isotherms ; Polymerization ; Kinetics ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB95-148649 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 18p
Adsorptive capacity of granular activated carbon (GAC) for several organic compounds was found to be strongly influenced by the presence of molecular oxygen. As a result, GAC exhibits much higher adsorptive capacities for these compounds under aerobic than anaerobic conditions. Therefore, a new experimental procedure for conducting an adsorption isotherm test is proposed in this work. The results of kinetic experiments show that this polymerization of adsorbate proceeds at a very slow rate that extends the time required for equilibrium conditions to be established. Extraction efficiencies obtained for GAC used in anaerobic isotherm experiments were significantly higher than those obtained for GAC used in isotherm experiments conducted in the presence of molecular oxygen.