The Effects of Various Parameters on Cr (VI) Adsorption by Raw Rice Husk

Subramaniam P; Khan N.A; Shaliza Ibrahim

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Published: Aug 24, 2006

Subramaniam P

Khan N.A

Shaliza Ibrahim

Abstract

The effects of pH, contact time and adsorbent concentration on the adsorption of Cr (VI) onto raw rice husk have been investigated. The parameters - raw rice husk (RRW) particle size which was in the range of 450-600 Ã‚Âµm, concentration from 10g/1 to 70g/1, contact time 0.5 to 2.0 hours, and pH 1-8 were tested using 50mg/1 solutions of Cr (VI). The maximum removal efficiency was 66.6% for RRW concentration of 70g/1, at pH 2 and 2 hours contact time. In terms of adsorption capacity, the 10g/1 adsorbent concentration gave the highest reading of 2.2 mg/g for a pH of 2 and 2 hours contact time.

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P, S., N.A, K., & Ibrahim, S. (2006). The Effects of Various Parameters on Cr (VI) Adsorption by Raw Rice Husk. Malaysian Journal of Science, 25(1), 23–29. Retrieved from http://ijie.um.edu.my/index.php/MJS/article/view/8159

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Vol. 25 No. 1 (2006)

Section

Original Articles

Licensee MJS, Universiti Malaya, Malaysia. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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