alexa Investigation of Mixture Effects on the Adsorption Rate
ISSN: 2150-3494

Chemical Sciences Journal
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Research Article

Investigation of Mixture Effects on the Adsorption Rates of Aromatics from Aqueous Solution on Clay and Sandy Soil

Ebuwa I Osagie* and Owabor CN

School of Energy, Environment and Agric-food, Engineering Department, Cranfield University, Bedford, Bedfordshire, MK43 0AL, UK

*Corresponding Author:
Ebuwa I Osagie
School of Energy, Environment and Agric-food
Engineering Department, Cranfield University
Bedford, Bedfordshire, MK43 0AL, UK
E-mail: [email protected]

Received Date: September 27, 2015 Accepted Date: September 29, 2015 Published Date: November 07, 2015

Citation: Osagie EI, Owabor CN (2015) Investigation of Mixture Effects on the Adsorption Rates of Aromatics from Aqueous Solution on Clay and Sandy Soil. Chem Sci J 6:112. doi:10.4172/2150-3494.1000112

Copyright: © 2015 Osagie EI, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

The adsorption behavior of a mixture of two polycyclic aromatic hydrocarbons (PAHs); naphthalene and pyrene and one cyclic aromatic hydrocarbon using clay and sandy soil as adsorbents was examined under ambient conditions in this study. The adsorption from the aqueous solution was observed to be time dependent and the time taken to attain adsorption equilibrium for benzene, naphthalene and pyrene in the mixture were 22, 16 h, 18 and 14 h, and 26 and 18 h in clay and sandy soil, respectively. Among the tested kinetics model in this study, the pseudo-second order equation successfully predicted the adsorption. The rate of adsorption using the pseudo-second order rate expression for benzene, naphthalene and pyrene were 0.00096, 0.00072, 0.00092 min-1 and 0.00091, 0.00080, 0.00090 min-1 for clay and sandy soils respectively. These results suggest that benzene was more selectively adsorbed than naphthalene and pyrene in both clay and sandy soil.

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