||GAC adsorption of a mixture of natural organic matter and VOCs in the presence and absence of molecular oxygen /
Vidic, R. D. ;
Sorial, G. A. ;
Papadimas, S. P. ;
Speth, T. F. ;
Suidan., M. T.
||Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. ;Cincinnati Univ., OH. Dept. of Civil and Environmental Engineering.
|| [U.S. Environmental Protection Agency],
Water treatment ;
Organic wastes ;
Beds(Process engineering) ;
Activated carbon ;
Sanitary landfills ;
Natural organic matter
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||pages 613-630 : illustrations
In an attempt to determine the effects of molecular oxygen on activated carbon adsorption modeling, isotherms, microcolumns, and pilot-columns are completed in the presence and absence of molecular oxygen. The results show that in oxic conditions, natural organic matter has a higher adsorption capacity than in anoxic conditions. Molecular oxygen does not affect the adsorption capacity of target compounds in distilled water, however in the presence of natural organic matter, the adsorption capacity of the target compounds decrease in oxic conditions due to an increased competitive effect from the natural organic matter. The results also show that the constant-diffusivity scale-up approach is more accurate under these conditions than the linear-diffusivity scale-up approach.
"Presented at the 1991 American Water Works Association annual conference, Philadelphia, PA, June 23-28, 1991." "Published by the American Water Works Association in proceedings pp. 613-630." Includes bibliographical references (pages 619-620). "EPA/600/A-92/052." Microfiche.