Competitive Adsorption of Phenols on GAC. I: Adsorption Equilibrium
This article has a reply.
VIEW THE REPLYPublication: Journal of Environmental Engineering
Volume 119, Issue 6
Abstract
The impact of the presence of molecular oxygen on multicomponent adsorption is evaluated in this study. Adsorption equilibria for binary mixtures of phenol/o‐cresol and ternary mixtures of phenol/o‐cresol/3‐ethylphenol on granular activated carbon (GAC) are determined at 23°C using three different initial‐concentration combinations. Experiments were conducted under conditions where molecular oxygen is present (oxic adsorption) and under conditions where oxygen was excluded from the adsorbate solution and the GAC particles (anoxic adsorption). The ideal adsorbed solution theory, using the Myers equation for correlating the single‐solute anoxic isotherms, is found to accurately describe the competitive adsorption behavior of these phenolic mixtures under anoxic conditions. When the Freundlich equation was used to describe the single solute behavior, increased deviations were observed. Poor model predictions for the oxic isotherms are attributed to the presence of molecular oxygen, which promotes the polymerization of the adsorbates on the surface of GAC.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Butler, J. A. V., and Ockrent, C. (1930). “Studies in electrocapillarity. Part 3: the surface tension of solutions containing two surface‐active solutes.” J. Phys. Chem., 34, 2841–2859.
2.
Crittenden, J. (1976). “Mathematical modeling of fixed bed adsorber dynamics—single component and multi‐component,” PhD dissertation, University of Michigan, Ann Arbor, Mich.
3.
Crittenden, J. C., and Weber, W. J. (1978). “Predictive model for design of fixed bed adsorbers: parameter estimation and model development.” J. Envir. Engrg. Div., ASCE, 104(2), 185.
4.
DiGiano, F. A. (1978). “Mathematical models of competitive adsorption: successes, failures and future applications.” 39th Annu. Meeting Int. Water Conf., Pittsburgh, Pa.
5.
DiGiano, F. A., Baldauf, G., Frick, B., and Sontheiner, H. (1978). “A simplified competitive equilibrium adsorption model.” Chem. Engrg. Sci., 33(12), 1667–1673.
6.
Fritz, W., and Schlunder, E. U. (1974). “Simultaneous adsorption equilibria of organic solutes in dilute aqueous solutions on activated carbon.” Chem. Engrg. Sci., 29(5), 1279–1282.
7.
Fritz, W., and Schlunder, E. U. (1981). “Competitive adsorption of two dissolved organics onto activated carbon. I: adsorption equilibria.” Chem. Engrg. Sci., 36(4), 721–730.
8.
Jain, J. S., and Snoeyink, V. L. (1973). “Adsorption from bisolute systems on activated carbon.” J. Water Poll. Control Fed., 45(12), 2463–2479.
9.
Jossens, L., Prausnitz, J. M., Fritz, W., Schlunder, E. U., and Myers, A. L. (1978). “Thermodynamics of multi‐solute adsorption from dilute aqueous solutions.” Chem. Engrg. Sci., 33(8), 1097–1106.
10.
Math/PC‐library. (1984). International Mathematics and Statistics Library (IMSL), Houston, Tex.
11.
Mathews, A. P. (1975). “Mathematical modeling of multicomponent adsorption in batch reactors,” PhD thesis, University of Michigan, Ann Arbor, Mich.
12.
Myers, A. L., and Prausnitz, J. M. (1965). “Thermodynamics of mixed‐gas adsorption.” Amer. Inst. Chem. Engrg. J., 11(1), 121–127.
13.
Nonhebel, D. C., and Walton, J. C. (1974). Free radical chemistry. Cambridge University Press, Cambridge, England.
14.
Radke, C. J., and Prausnitz, J. M. (1972a). “Thermodynamics of multisolute adsorption from dilute liquid solutions.” Amer. Inst. Chem. Engrg. J., 18(4), 761–768.
15.
Radke, C. J., and Prausnitz, J. M. (1972b). “Adsorption of organic solutes from dilute aqueous solutions on activated carbon.” Ind. Engrg. Chem. Fundamentals, 11(4), 445–451.
16.
Rosene, M. R., and Manes, M. (1976). “Application of the Polyani adsorption potential theory to adsorption from solution on activated carbon VII. Competitive adsorption of solids from water solution.” J. Phys. Chem., 80(9), 953–959.
17.
Singer, P. C., and Yen, C. (1980). “Adsorption of alkyl phenols by activated carbon. ” Activated carbon adsorption of organics from the aqueous phase; Vol. 1, I. H. Suffet and M. J. McGuire, eds., Ann Arbor Science Publishers, Inc., Ann Arbor, Mich., 167–189.
18.
Sorial, G. A., Suidan, M. T., Vidic, R. D., and Maloney, S. W. (1993). “Competitive adsorption of phenols on GAC. II: adsorption dynamics under anoxic conditions.” J. Envir. Engrg., ASCE, 119(6), 1044–1058.
19.
Vidic, R. D., Suidan, M. T., Traegner, U. K., and Nakhla, G. F. (1990). “Adsorption isotherms: illusive capacity and role of oxygen.” Water Res., 24(10), 1187–1195.
20.
Vidic, R. D., and Suidan, M. T. (1991). “Role of dissolved oxygen on the adsorptive capacity of activated carbon for synthetic and natural organic matter.” Envir. Sci. Technol., 25(9), 1612–1618.
21.
Vidic, R. D., and Suidan, M. T. (1992). “Selecting batch studies for adsorber design: molecular oxygen's role.” J. AWWA, 84(3), 101–109.
22.
Vidic, R. D. (1992). “Oxidative coupling of phenols on activated carbon—fundamentals and implications,” PhD dissertation, University of Cincinnati, Cincinnati, Ohio.
23.
Yen, C., and Singer, P. C. (1984). “Competitive adsorption of phenols on activated carbon.” J. Envir. Engrg., ASCE, 110(5), 976–989.
Information & Authors
Information
Published In
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Apr 29, 1992
Published online: Nov 1, 1993
Published in print: Nov 1993
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.