PRELIMINARY STUDY ON COPPER IONS REMOVAL FROM SYNTHETIC AQUEOUS SOLUTIONS USING HARD ALMOND PEEL AS A LOW-COST MATERIAL
1. Laboratory of Sorbent Materials and Water Treatment,Department of Chemistry-Faculty of Sciences,University of Tlemcen,P.O.Box.119 13 000 Tlemcen ALGERIA2. Department of Hydraulics,Faculty of Technology,University of Tlemcen,P.O.Box.230 13 000 Tlemcen ALGERIA3. LERMAB E4 4370,Faculty of Sciences and Techniques,University of Nancy,Boulevard of aiguillettes,P.O.Box 70239 54506 Vandoeuvre-les-Nancy FRANC4. LERMAB E4 4370,Faculty of Sciences and Techniques,University of Nancy,Boulevard of aiguillettes,P.O.Box 70239 54506 Vandoeuvre-les-Nancy FRANCE
摘要：In the present work,the potential of hard almond peels for the removal of copper ions from aqueous synthetic solutions has been investigated.Kinetic data and equilibrium sorption isotherm were measured in batch conditions.The influence of some parameters such as:contact time and initial copper ions concentration on copper ions sorption kinetics has been studied.The quantity of copper sorbed at equilibrium depends on contact time,initial metal concentration and increases with an increase of these two parameters.Two simplified kinetic models including a first-order rate equation and a pseudo second-order rate equation were selected to describe the metal sorption kinetics.The process followed a pseudo second–order rate kinetics.Langmuir and Freundlich models were used to describe sorption equilibrium data at natural pH of solution.Results indicated that the Langmuir model gave a better fit to the experimental data than the Freundlich model.Maximum copper uptake obtained was qm=78.25 mg/g（1.231 mmol/g）under the investigated experimental conditions.
Seventeenth International Water Technology Conference（IWTC17）