Modelling of Single and Binary Adsorptions of Heavy Metals Onto Activated Carbon - Equilibrium Studies

Abdullah, Luqman Chuah and Muhammad, and Jamari, Saidatul Shima and Choong, Thomas Shean Yaw (2010) Modelling of Single and Binary Adsorptions of Heavy Metals Onto Activated Carbon - Equilibrium Studies. Pertanika Journal of Science & Technology, 18 (1). pp. 83-93. ISSN 0128-7680

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Abstract

A series of batch laboratory studies were conducted to investigate the suitability of activated carbon SA2 for the removal of cadmium ions and zinc ions from their aqueous solutions. The single component equilibrium data were analyzed using the Langmuir and Freundlich isotherms. Overall, the Langmuir isotherm showed a better fitting for all adsorptions under investigation in terms of correlation coefficient and error analysis (SSE only 18.2 for Cd2+ and 47.95 for Zn2+). As the binary adsorption is competitive, extended Langmuir models could not predict the binary component isotherm well. The modified extended Langmuir models were used to fit the binary system equilibrium data. The binary isotherm data could be described reasonably well by the modified extended Langmuir model, as indicated in the error analysis.

Item Type:Article
Keyword:Activated carbon, adsorption, binary isotherm, cadmium, zinc
Faculty or Institute:Faculty of Engineering
Publisher:Universiti Putra Malaysia Press
ID Code:11078
Deposited By: Anas Yahaya
Deposited On:25 Mar 2011 06:40
Last Modified:27 May 2013 07:48

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