Abstract

Maize cobs and groundnut shell adsorbents from agricultural by-products were carbonized and investigated for adsorption of two selected metals, Lead (Pb II) and Zinc (Zn II) from aqueous solutions of these metals. Kinetic studies of the adsorption processes were investigated employing Elovich and the intraparticle diffussion models. The results showed that, the adsorption capacities of these comparatively cheaper adsorbents and their efficiency for the removal of Pb(II) and Zn(II) ions from aqueous solution present them suitable for use in place of the costly commercial activated carbons.

Department(s)

Chemical and Biochemical Engineering

Keywords and Phrases

Adsorption kinetics; Groundnut shell; Heavy metal ions; Maize cob

International Standard Serial Number (ISSN)

1450-216X;0450-202X

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2012 EuroJournals Publishing, Inc., All rights reserved.

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