Statistical optimization of for chromium (IV) removal on aqueous solution using chitosan

Kabbashi, Nassereldeen Ahmed and Daoud, Jamal Ibrahim and Muyibi, Suleyman Aremu and Qudsieh, Isam Y. (2011) Statistical optimization of for chromium (IV) removal on aqueous solution using chitosan. Australian Journal of Basic and Applied Sciences, 5 (6). pp. 423-429. ISSN 1991-8178

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Abstract

In this work, a statistical model which can be used to evaluate the removal of chromium from aqueous solution using chitosan as an adsorbent has been developed. The experiment was described by varying chitosan dosage (10-30 mg), pH (5-8), contact time (10-90 min) and agitation speed (50-250 rpm). The initial chromium concentration was fixed to 20 mg/L. The results indicated that pH is the most significant factor that affects the removal of chromium. The R2 of 0.9963 showed that the overall model is good as the experimental values are close to predicted values. The optimized conditions obtained at 28.79 mg chitosan dosage, pH 6.39, 20.16 minutes contact time and agitation speed of 156.23 rpm. This optimum condition obtained to achieve 0.05 mg/L residual chromium concentration or 99.75% removal that meets DOE effluent discharge requirement.

Item Type:	Article (Journal)
Additional Information:	4286/2828
Uncontrolled Keywords:	Chromium removal; chitosan; wastewater; optimum conditions
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering Kulliyyah of Engineering > Department of Science
Depositing User:	Assoc.Prof.Dr Jamal Daoud
Date Deposited:	21 Sep 2011 12:13
Last Modified:	15 Jun 2017 08:41
URI:	http://irep.iium.edu.my/id/eprint/2828

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