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Investigations of Nickel (II) removal from Aqueous Effluents using Electric arc Furnace Slag

Author Affiliations

  • 1Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, 43400 UPM Serdang, Selangor DE, MALAYSIA

Res.J.chem.sci., Volume 3, Issue (12), Pages 29-37, December,18 (2013)

Abstract

The tendency of electric arc furnace (EAF) slag to the adsorb nickel(II) from aqueous solution has been investigated through batch experiments. Scanning electron microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR) andEnergy Dispersive X-Ray (EDX) Analysis. Analysis was characterized in order to give inside to the properties of electric arc furnace slag (EAFS). The adsorption result revealed that the maximum up take by the EAFS was 160.92mg/g at an equilibrium time of 216hr. The pseudo-second order kinetic fitted well with the kinetic data, showing a high determination coefficient (R)2of over 0.996. The adsorption isotherms of nickel(II) on this adsorbent for both linear and non linear isotherms were well described by Langmuir model, this is because it shown a good fitting to the experimental data when compared to other isotherm models. Moreover the nickel(II) adsorption was found to be dependent on the adsorbent dosage, contact time and initial metal ion concentration. From the result it can be deduced that EAFS could be used to effectively adsorb nickel(II) from aqueous solution.

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