Journal
PROCESS BIOCHEMISTRY
Volume 41, Issue 9, Pages 2087-2091Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.procbio.2006.04.014
Keywords
activated carbon; Arthrobacter viscosus; biofilm; biosorption; chromium(VI); organic compounds
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A biofilm of Arthrobacter viscosus supported on granular activated carbon was used to remove chromium and organic compounds (chlorophenol, phenol and o-cresol) from aqueous solutions. The compounds were studied as single solutes and in different combinations between them and Cr(VI). Optimum Cr(VI) adsorption was observed at a phenol concentration of 100 mg/l and at an initial concentration of the metal of 60 mg/l. The maximum values of biosorption of organic compounds were 9.94 mg/g for phenol, 9.70 mg/g for chlorophenol and 13.99 mg/g for o-cresol. In terms of removal percentage, after 15 h of experiment, the affinity order was as follows: phenol > chlorophenol > o-cresol > chromium(VI). (c) 2006 Elsevier Ltd. All rights reserved.
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