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

Subramaniam, P. and Khan, N.A. and Ibrahim, S. (2006) The Effects of Various Parameters on Cr (VI) Adsorption by Raw Rice Husk. Malaysian Journal of Science, 25 (1). pp. 23-29. ISSN 1394-3065,

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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 µm, 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.

Item Type: Article
Uncontrolled Keywords: Adsorption; Raw rice husk; Concentration effect; pH effect; Contact time
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 26 Apr 2018 08:33
Last Modified: 27 Apr 2021 08:01

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