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BIOSORPTION OF CADMIUM FROM AQUEOUS SOLUTIONS USING ORANGE PEEL, WALNUT AND HAZELNUT SHELL

Katarína Janošková

First published: 2011-06-20https://doi.org/10.5593/sgem2011/s21.103View metrics

Abstract

Biosorption of Cd(II) ions from aqueous solu tions has been studied and determined to adsorption capacity. The expe rimental data obtained from batch equilibrium tests have been analyzed by three two-parameter (Fre undlich, Langmuir and Temkin) isotherm models, four three-parameter (Redlich-Peterson, Sips, Toth and Khan) isotherm models and kinetic models including the pseudo-f irst order and pseudo-second order. The adsorption data fit well with Temkin isotherm for orange peel and Freundlich isotherm for walnut and hazelnut shell. Maximum experimental adsorption capacity was found to be 13.947, 8.57 and 8.847 mg/g for orange peel, walnut shell and hazelnut shell, respectively. Experimental kinetics data wa s well-fitted for pseudo-second order for all adsorbents and correlation coefficient for kinetics was above 90%.

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Publication details

Title
BIOSORPTION OF CADMIUM FROM AQUEOUS SOLUTIONS USING ORANGE PEEL, WALNUT AND HAZELNUT SHELL
Authors
Katarína Janošková
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference
Publisher
Stef92 Technology
Year
2011
Pages
Not available yet
ISSN
1314-2704
ISBN
Not available yet
Language
en
Publication type
Conference Paper
Keywords
biosorptioncadmiumisothermkinetic
References16

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