Journal
BIORESOURCE TECHNOLOGY
Volume 85, Issue 2, Pages 155-158Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0960-8524(02)00086-X
Keywords
biosorption; chromium(VI); heavy metal; wastewater treatment; cone; Pinus sylvestris
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Biosorption of chromium(VI) on to cone biomass of Pinus sylvestris was studied with variation in the parameters of pH, initial metal ion concentration and agitation speed. The biosorption of Cr(VI) was increased when pH of the solution was decreased from 7.0 to 1.0. The maximum chromium biosorption occurred at 150 rpm agitation. An increase in chromium/biomass ratio caused a decrease in the biosorption efficiency. The adsorption constants were found from the Freundlich isotherm at 25 degreesC. The cone biomass, which is a readily available biosorbent, was found suitable for removing chromium from aqueous solution. (C) 2002 Published by Elsevier Science Ltd.
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