Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 161, Issue 2-3, Pages 1040-1045Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2008.04.050
Keywords
Copper(II); Zinc(II); Biosorption; Pinus sylvestris L.; Isotherm
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The biosorption properties of copper(II) and zinc(II) onto a cone biomass of Pinus sylvestris L. was investigated by using batch techniques. The biosorption studies carried out with single metal solutions. The removal of copper(II) and zinc(II) from aqueous solution increased with pH and sharply decreased when pH of the solution was decreased. The maximum biosorption efficiency of P. sylvestris was 67% and 30% for Cu(II) and Zn(II), respectively. Batch kinetic and isotherm of biosorption metal ions were investigated. The second-order kinetic model was used to correlate the experimental data. The Freundlich and Langmuir model can describe the adsorption equilibrium of metal(II) on cone biomass. The biosorption constants were found from the Freundlich and Langmuir isotherms at 25 degrees C. It is found that the biosorption data of metals on cone biomass fitted both the Freundlich and Langmuir adsorption models. (C) 2008 Elsevier BY. All rights reserved.
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