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The Performance of Coconut Husk and Shell for the Removal of Methyl Red from Aqueous Solution: Adsorption Equilibrium and Kinetic Study

Edriyana, Abd Aziz and Abdul Syukor, Abd Razak and Suryati, Sulaiman and Hasmanie, Abdul Halim and Islam, Mir Sujaul and N. A., Zainodin and W. A., Wan Omar (2016) The Performance of Coconut Husk and Shell for the Removal of Methyl Red from Aqueous Solution: Adsorption Equilibrium and Kinetic Study. Journal of Engineering and Applied Sciences, 11 (11). pp. 2500-2507. ISSN 1816-949X

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Abstract

Abstract: Removal of methyl red from aqueous solution onto coconut husks and coconut shell, a low cost agricultural waste material in a batch process was investigated. Adsorption and removal was studied as a function of amount of adsorbent (0.02-0.08 g), pH (2.0-12.0) and initial concentration (200-800 mg L–1). Adsorption data were modeled using Langmuir, Freundlich and Tempkin adsorption isotherm models. Equilibrium data of the biosorption process fitted very well into Langmuir isotherm model. The maximum adsorption capacity was approximately 71 mg g–1 for both coconut husks and coconut shell at an optimum pH 12. Adsorption kinetic was verified by pseudo-first order and pseudo-second order kinetic models. The results indicated that the dye uptake process followed the pseudo-second order which suggest that adsorption of the dye was through a chemical sorption. From the removal experiments, the results indicated that coconut husks and coconut shell could not effectively be employed as a low-cost adsorbent for the removal of basic dyes (methyl red) from aqueous solution as its removal is concentration dependent.

Item Type: Article
Uncontrolled Keywords: Adsorption; Methyl red; Coconut husk; Coconut shell; Eguilibrilllll; Isotherm; Kinetics
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculty/Division: Faculty of Civil Engineering & Earth Resources
Depositing User: Dr. Edriyana A. Aziz
Date Deposited: 25 Aug 2017 03:32
Last Modified: 28 Sep 2018 02:18
URI: http://umpir.ump.edu.my/id/eprint/17519
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