Journal
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
Volume 42, Issue 6, Pages 952-956Publisher
ELSEVIER
DOI: 10.1016/j.jtice.2011.04.003
Keywords
Phenol removal; Brown seaweed; Activated carbon; Factorial design; Statistical design; ANOVA
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Brown seaweed biomass was used as a precursor for the preparation of activated carbon employing zinc chloride activation. The activated carbon was characterized and employed as an adsorbent for the removal of phenol from aqueous solution. In order to reduce the number of experiments to achieve better phenol removal efficiency, two independent sets of full 2(3) factorial design experiments were carried out. The results showed that all the factors were significant, besides several interactions among the factors were also significant. Using this statistical tool, the best conditions for phenol removal by the seaweed based activated carbon was established as pH 3.0; initial concentration of phenol 150 mg/L; adsorbent dosage 10 g/L; time 4 h; experimental temperature 50 degrees C and an agitation speed of 75 strokes/min. The maximum phenol uptake under these experimental conditions was 98.31%. (C) 2011 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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