alexa Removal of insecticide carbofuran from aqueous solutions by banana stalks activated carbon.
Chemistry

Chemistry

Journal of Environmental Analytical Chemistry

Author(s): Salman JM, Hameed BH

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Abstract In this work, activated carbon was prepared from banana stalks (BSAC) waste to remove the insecticide carbofuran from aqueous solutions. The effects of contact time, initial carbofuran concentration, solution pH and temperature (30, 40 and 50 degrees C) were investigated. Adsorption isotherm, kinetics and thermodynamics of carbofuran on BSAC were studied. Equilibrium data were fitted to the Langmuir, Freundlich and Temkin isotherm models and the data best represented by the Langmuir isotherm. Thermodynamic parameters such as standard enthalpy (DeltaH(o)), standard entropy (DeltaS(o)) and standard free energy (DeltaG(o)) were evaluated. Regeneration efficiency of spent BSAC was studied using ethanol as a solvent. The efficiency was found to be in the range of 96.97-97.35\%. The results indicated that the BSAC has good regeneration and reusability characteristics and can be used as alternative to present commercial activated carbon. 2009 Elsevier B.V. All rights reserved. This article was published in J Hazard Mater and referenced in Journal of Environmental Analytical Chemistry

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