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International Journal of Innovation and Scientific Research
ISSN: 2351-8014
 
 
Thursday 17 October 2019

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Biosorption of Zn (II) ions from aqueous solutions by water hyacinth (Eichhornia crasippes): Equilibrium and Kinetic studies


Volume 8, Issue 2, September 2014, Pages 224–233

 Biosorption of Zn (II) ions from aqueous solutions by water hyacinth (Eichhornia crasippes): Equilibrium and Kinetic studies

Davis Amboga Anzeze, John Mmari Onyari, Paul Mwanza Shiundu, and John W Gichuki

Original language: English

Received 11 July 2014

Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


The biosorption characteristics of Zn (II) ions were investigated. Experimental parameters affecting the biosorption process such as pH, contact time, biomass dosage, initial metal ion concentration, and temperature were studied in batch adsorption experiments. Langmuir and Freundlich isotherm models were applied to the adsorption data .The biosorption capacity for E. crasippes was found to be 16.50 mg g-1. The data was also subjected to pseudo-first-order and the pseudo-second-order kinetic models.

Author Keywords: Biosorption, Water hyacinth (E. crassipes), Heavy metal ions, Isotherms, Kinetics.


How to Cite this Article


Davis Amboga Anzeze, John Mmari Onyari, Paul Mwanza Shiundu, and John W Gichuki, “Biosorption of Zn (II) ions from aqueous solutions by water hyacinth (Eichhornia crasippes): Equilibrium and Kinetic studies,” International Journal of Innovation and Scientific Research, vol. 8, no. 2, pp. 224–233, September 2014.