Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 27, Issue -, Pages 126-132Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2014.12.026
Keywords
Biosorption; Marula seed husk; Metal ions; Kinetics; Thermodynamics; Wastewater
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A biosorbent prepared from marula seed husk (Sclerocarya birrea) was used to study the sorption of Pb(II) and Cu(II) from industrial wastewater under batch conditions. The equilibrium sorption capacities of the seed husk were 20 mg g(-1) for Pb(II) and 10.20 mg g(-1) for Cu(II). The biosorption data conforms best with Langmuir model for both Pb(II) and Cu(II) with correlation factors of 0.999 and 0.998, respectively. Kinetic data were properly fitted with the pseudo-second order kinetic model. The thermodynamic parameters (Delta G(0), Delta S-0 and Delta H-0) showed that the biosorption was feasible, spontaneous and endothermic. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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