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Dr. Mohamed Sobhi Motawa Awad :: Publications:

Electrochemical Decolorization of Maxilon Red GRL Textile Dye
Authors: Gamal O. El-Sayed, Mohamed S. Awad and Zahraa A. Ayad
Year: 2014
Keywords: Not Available
Journal: International Research Journal of Pure & Applied Chemistry
Volume: 4
Issue: 4
Pages: : 402-416
Publisher: Not Available
Local/International: International
Paper Link: Not Available
Full paper Not Available
Supplementary materials Not Available

Aims: The aim of this research paper is to examine the efficiency of electrooxidation and electrocoagulation techniques to remove the textile dye Maxilon Red GRL from polluted water. Study Design: The study was performed by using two graphite electrodes as anode and cathode for electrooxidation (EO) and a stainless steel electrode as anode and graphite as cathode for electrocoagulation (EC). Place and Duration of Study: Chemistry Department, Faculty of Science, Benha University, 13518 Benha, Egypt, between April 2013 and July 2013. Methodology: The experiments were carried out in a glass beaker containing 100 ml of dye solution. The two electrochemical techniques; EO and EC were performed to optimize both methods for maximum dye removal. The removal process was studied at different conditions of pH, treatment time, electrolyte concentration, current density, potential difference between electrodes and initial dye concentration. Results: The results indicate that the optimum pH for EO is 5, while that for EC is 9. The increase of current density and cell voltage results in a corresponding increase in the removal efficiencies. Complete decolorization was achieved after 120 and 90 minutes for the EO and EC processes, respectively. Conclusion: High levels of elimination of Maxilon Red GRL dye by EO or EC reached nearly 100% were detected by optimizing the experimental conditions.

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