algerian journal of environmental science and technology
Volume 2, Numéro 1, Pages 12-16
2016-04-30

Biosorption Of Nickel(ii) Ions From Aqueous Solutions By ‎using Chicken Eggshells As Low-cost Biosorbent

Authors : Khelifi‎ O . Nacef‎ M . Affoune A.m .

Abstract

The aim of this present study was to evaluate the feasibility of ‎using chicken eggshells as low-cost biosorbent for nickel(II) ions ‎adsorption from aqueous solutions. In order to clarify the ‎adsorption process, batch experiments were performed to study ‎the effect of operating parameters such as biosorbent dose (1-10 ‎g/L), initial concentration of nickel ions (10-50 mg/L), contact ‎time (5-120 min) and temperature (20-50 °C). To describe the ‎adsorption equilibrium, the experimental data were analyzed by ‎the Langmuir, Freundlich and Temkin isotherm models. The ‎Freundlich model showed better representation of data (R2> ‎‎0.999).The maximum adsorption capacity of chicken eggshells ‎for nickel ions was approximately 2.3 mg g-1 at 20 °C. The results ‎of the present study suggest that chicken eggshells can be used ‎beneficially as low-cost biosorbent for nickel(II) ions adsorption ‎from aqueous solution.‎

Keywords

Adsorption;‎ Nickel(II); ‎ Chicken eggshells.‎