Effect of initial concentration on the adsorption of copper (II) and lead (II) ions by dried water lily leaves

Chan, Kah Yin (2010) Effect of initial concentration on the adsorption of copper (II) and lead (II) ions by dried water lily leaves. Universiti Malaysia Sabah. (Unpublished)

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Abstract

In this study, effect of initial concentration and contact time on the adsorption of Cu (II) and Pb (II) ions by dried water lily leaves was investigated. The research was carried out in batch adsorption experiment. Parameters such as initial concentration and contact time were studied in this experiment. The results of the study showed that the adsorption of Cu (II) and Pb (II) ions were dependent on initial concentration and contact time. The amount of Cu²�and Pb²� being adsorbed increases with increasing initial concentration and contact time. Next, the adsorption of of Cu²� was found fitted with langmuir isotherm whereas the adsorption of Pb²� showed good agreement with Freundlich isotherm. The maximum adsorption capacity, Qm, for Cu²� and Pb²� was 17.85 and 69.44 mg/g, respectively. Furthermore, experimental data was fitted into pseudo-second order kinetic model. This indicated that the adsorption process was controlled by chemical sorption.

Item Type: Academic Exercise
Uncontrolled Keywords: dried water lily, leaves, adsorption, cuprum, plumbum, langmuir isotherm, chemical sorption
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Divisions: SCHOOL > School of Science and Technology
Depositing User: Unnamed user with email storage.bpmlib@ums.edu.my
Date Deposited: 02 Sep 2015 09:01
Last Modified: 27 Oct 2017 01:49
URI: http://eprints.ums.edu.my/id/eprint/11692

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