Influence of operating parameters on electrocoagulation of C.I. disperse yellow 3

  • Djamel Ghernaout Department of Chemical Engineering, University of Blida, PO Box 270, Blida 09000, Algeria and Binladin Research Chair on Quality and Productivity Improvement in the Construction Industry; College of Engineering, University of Hail, PO Box 2440, Ha’il 81441, Saudi Arabia
  • Abdulaziz Ibraheem Al-Ghonamy Binladin Research Chair on Quality and Productivity Improvement in the Construction Industry; College of Engineering, University of Hail, PO Box 2440, Ha’il 81441
  • Mohamed Wahib Naceur Department of Chemical Engineering, University of Blida, PO Box 270, Blida 09000, Algeria
  • Noureddine Ait Messaoudene Binladin Research Chair on Quality and Productivity Improvement in the Construction Industry; College of Engineering, University of Hail, PO Box 2440, Ha’il 81441, Saudi Arabia
  • Mohamed Aichouni Binladin Research Chair on Quality and Productivity Improvement in the Construction Industry; College of Engineering, University of Hail, PO Box 2440, Ha’il 81441, Saudi Arabia
Keywords: Dye removal, aluminium, iron, current density, mechanism.

Abstract

This work deals with the electrocoagulation (EC) process for an organic dye removal. The chosen organic dye is C.I. disperse yellow 3 (DY) which is used in textile industry. Experiments were performed in batch mode using Al electrodes and for comparison purposes Fe electrodes. The experimental set-up was composed of 1 L beaker, two identical electrodes which are separated 2 cm from each other. The main operating parameters influencing EC process were examined such as pH, supporting electrolyte concentration CNaCl, current density i, and DY concentration. High performance EC process was shown during 45 min for 200 mg/L dye concentration at i = 350 A m-2 (applied voltage 12 V) and CNaCl = 1 g L-1 reaching 98 % for pHs 3 and 10 and 99 % for pH 6. After 10 min, DY was also efficiently removed (86 %) showing that EC process may be conveniently applied for textile industry wastewater treatment. EC using Fe electrodes exhibited slightly lower performance comparing EC using Al electrodes.

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Published
05-12-2014
Section
Electrochemical Engineering