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Development of novel adsorbent-mangrove-alginate composite bead (MACB) for removal of Pb(II) from aqueous solution

Abas, Siti Nur Aeisyah and Ismail, Mohd Halim Shah and Siajam, Shamsul Izhar and Kamal, Md Lias (2015) Development of novel adsorbent-mangrove-alginate composite bead (MACB) for removal of Pb(II) from aqueous solution. Journal of the Taiwan Institute of Chemical Engineers, 50 . pp. 182-189. ISSN 1876-1070; ESSN: 1876-1089

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

This study described a preparation of novel composite adsorbent for heavy metal removal by immobilized mangrove bark into alginate as supporting matrix. The removal of Pb(II) ions from aqueous solution by mangrove-alginate composite bead (MACB) was investigated by performing batch adsorption studies to evaluate the performances of the bead. It was found that the adsorption of Pb(II) ions by MACB beads was pH dependent, as the maximum percentage removal was obtained at pH 5.0. The results revealed the superior parameters of MACB beads had attained about 99.15% efficiency in conditions of 7 g L−1 MACB concentration, 150 min contact time, 5.0 as the initial pH, and 250 rpm agitation speed. The adsorption kinetic data can be well described using pseudo-second-order model and the equilibrium data were fitted well by Freundlich isothermal model, respectively. Thermodynamic parameters were calculated and revealed that the adsorption process is an exothermic and spontaneous reaction within range of temperature of 35–65 °C. This indicates that the MACB beads can be used as a promising adsorbent for removal of heavy metals from aqueous solutions.

Item Type:Article
Keyword:Alginate; Isotherm; Kinetics; Lead; MACB bead
Faculty or Institute:Faculty of Engineering
Publisher:Elsevier
DOI Number:10.1016/j.jtice.2014.11.013
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.jtice.2014.11.013
ID Code:37078
Deposited By: Nabilah Mustapa
Deposited On:14 Sep 2015 18:12
Last Modified:14 Sep 2015 18:12

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