Adsorption of Acenaphthene on Porous Organic Polymers
Publication: Journal of Environmental Engineering
Volume 123, Issue 9
Abstract
Adsorption behavior of the three-ring polynuclear aromatic hydrocarbon (PAH) acenaphthene from aqueous solutions on the adsorber polymers Wofatit EP 61 and EP 63 (Chemie GmbH Bitterfeld, Germany) was examined. Using dimethylsulfoxide as a solubilizer, equilibrium, kinetic, and fixed-bed dynamic experiments could be carried out. Freundlich parameters for equilibrium data were obtained, exhibiting high capacities at low liquid concentrations: KF= 0.14 mg1−nLn/mgA and n= 0.5 for EP 61; and KF= 0.22 mg1−nL/mgA and n= 0.39 for EP 63. By fitting the numerical solution of a mathematical model to experimental data from kinetic experiments in a differential bed adsorber operated at high circulation velocity, effective intraparticle diffusivity could be estimated to be Deff= 2.510−10 cm2/s. According to these data and parameters from empirical equations, breakthrough curves were predicted analytically and numerically and compared to experimental data. A good agreement with the numerical solution was observed. The presence of dimethylsulfoxide influenced neither equilibrium nor kinetic data.
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Published In
Journal of Environmental Engineering
Volume 123 • Issue 9 • September 1997
Pages: 836 - 841
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Sep 1, 1997
Published in print: Sep 1997
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