Volume 2, Issue 2, June 2017, Page: 47-53
Kinetics and Thermodynamics of Some Heavy Metals Removal from Industrial Effluents Through Electro-Flotation Process
K. A. Selim, Central Metallurgical Research & Development Institute (CMRDI), Cairo, Egyp
F. I. El Hosiny, Faculty of Science, Ain Shams University, Cairo, Egypt
M. A. Abdel Khalek, Central Metallurgical Research & Development Institute (CMRDI), Cairo, Egyp
I. Osama, Central Metallurgical Research & Development Institute (CMRDI), Cairo, Egyp
Received: Dec. 31, 2016;       Accepted: Jan. 18, 2017;       Published: Feb. 15, 2017
DOI: 10.11648/j.css.20170202.11      View  3415      Downloads  195
The electrokinetic of chromium, copper, silver and gold ions removal from synthetic and wastewater via electro-flotation was investigated. Kinetics and thermodynamic parameters of the electro-flotation process were determined. The effect of initial pH and metal ion concentration, treatment time and temperature showed that the maximum removal was achieved at pH 6. The order of the metal ions removal is Cr3+ > Cu2+> Ag+ > Au+. The removal process follows pseudo first-order kinetics and the adsorption is a heterogeneous system characterized by physical adsorption which is exothermic. Negative values of entropy change ΔS° and Gibbs free energy change ΔG° indicate that this adsorption process is spontaneous and less favorable at high temperatures. The treatment of electroplating wastewater showed that the removal efficiency was ranging between 96 - 99%. The electrical energy consumption was 0.033 Kwh/L.
Electro-Flotation, Wastewater, Heavy Metals, Kinetics, Thermodynamics
To cite this article
K. A. Selim, F. I. El Hosiny, M. A. Abdel Khalek, I. Osama, Kinetics and Thermodynamics of Some Heavy Metals Removal from Industrial Effluents Through Electro-Flotation Process, Colloid and Surface Science. Vol. 2, No. 2, 2017, pp. 47-53. doi: 10.11648/j.css.20170202.11
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Andra Predescu and Avram Nicolae; (2012) Adsorption of Zn, Cu and Cd from waste waters by means of maghemite nanoparticles; U. P. B. Sci. Bull., Series B, 74, Iss. 1.
Meshaal F. Alebrahim, I. A. Khattab and Adel O. Sharif; (2015) Electro-deposition of copper from a copper sulfate solution using a packed-bed continuous-recirculation flow reactor at high applied electric current; Egyptian journal of Petroleum, 24, 325-331.
Savka Adamoviuc, Miljana Prica and Bozo Dalmacija; (2015) Feasibility of electrocoagulation/flotation of waste offset printing developer based on the response surface analysis; Arabian Journal Of Chemistry; DOI: 10.1016/ j.arabjc.2015.03.018.
Gunatilake S. K.; (2015) Methods of Removing Heavy Metals from Industrial Wastewater; Journal of Multidisciplinary Engineering Science Studies; 1, 1, 234-241.
Akbal F. andKuleyin A, (2010) Decolorization of levafix brilliant Blue EB by electrocoagulation method, “Environmental Progress and Sustainable Energy”, DOI: 10.1002/ep.10437
Dermentzis K., (2010) Removal of nickel from electroplating rinse waters using electrostatic shielding electrodialysis / electrodeionization, “Journal of Hazardous Materials”, 173, 647-652.
Kurniawan A., Chan G. Y. S., Lo W. H. and Babel S., (2006) Physicochemical treatment techniques for wastewater laden with heavy metals, “Chemical Engineering Journal”, 118, 83-98.
Abd El-Khalek M. A.; (2011) Studies on industrial wastewater treatment by electrochemical coagulation; The journal of Ore Dressing, 13, 26, 15-20.
Lazaridis N. K., Bakayannakis D. N. and Deliyianni E. A., (2005), Chromium (VI) sorptive removal from aqueous solution by nano crystalline akaganeite, “Chemosphere”, 58, 65-73.
Lu H., Wang J., Yan B. and Bu S., (2010) Recovery of nickel ions from simulated electroplating rinse water by electrode ionization process, “Water Science and Technology”, 61, 72-83.
Nouri J., Mahvi A. H. and Bazrafshan E., (2010) Application of electrocoagulation process in removal of zinc and copper from aqueous solutions by aluminum electrodes, “International Journal of Environmental Research”, 4, 201-208.
Senthikumar R., Vijaraghavan K., Jegan J. andVelan M., (2010) Batch and column removal of total chromium from aqueous solution using Sargassum polycystum, “Environmental Progress and Sustainable Energy”, DOI: 10.1002/ep.10416.
Tchamango S., Nanseu Njiki C. P., Ngameni E., Hadjiev D. and Darchen A., (2010) Treatment of dairy effluents by electrocoagulation using aluminum electrodes, “Science of the Total Environment”, 408, 947-952.
Aoudj S., Khelifa A., Drouiche N. & Hecini M.; (2015) Removal of fluoride and turbidity from semiconductor industry wastewater by combined coagulation and electroflotation; Desalination and Water Treatment; 1-8.
Emamjomeh M. M. & Sivakumar M., (2009) Denitrification using a monopolar electro-coagulation /flotation (ECF) process, “Journal of Environmental Management”, 91, 516-522.
Hunsom M., Pruksathorna K., Damronglerda S., Vergnesb H. and Duverneuilb P., (2005) Electrochemical treatment of heavy metals (Cu2+, Cr6+, Ni2+) from industrial effluent and modeling of copper reduction, Water Res. 39, 610-616.
Vasudevan S., Lakshmi J. & Sozhan G., (2009) Studies on the removal of iron from drinking water by electrocoagulation – A clean process, “Clean: Soil, Air, Water”, 37, 45-51.
Konstantinos D., Achilleas C. and Evgenia V., (2011) "Removal of nickel, copper, zinc and chromium from synthetic and industrial wastewater by electrocoagulation", International Journal of Environmental Sciences, 1, 5, 342-350.
Housecroft, Catherine E. and Alan G. Sharpe, (2008), Inorganic Chemistry. 3rd ed. England: Pearson Education Limited.
Krishna G. Bhattacharyya and Susmita S. Gupta, (2006) "Adsorption of Fe (III) from water by natural and acid activated clays: Studies on equilibrium isotherm, kinetics and thermodynamics of interactions", 12: 185–204.
Perez-Marin A. B., Meseguer Zapata V., Ortuno J. F., Aguilar M., Saez J. and Llorens M., (2007) J. Hazard. Mater. B139, 122–131.
Demiral H., Demiral L., Tumsek F. and Karabacakoglu B., (2008) Chem. Eng. J. 144, 188–196.
Yadava K. P., Tyagi B. S. and Singh V. N., (1991) J. Chem. Biotechnol. 51, 47–60.
El-Hamshary H. & El-Sigeny S., (2007) Removal of phenolic compounds using (2-hydroxyethyl methacrylate/ acrylamido-pyridine) hydrogel prepared by gamma radiation, Sep. Purif. Technol. 57, 329–337.
Martell A. E. & Smith R. M., (1977), The oxidation of cobalt (II) adsorbed on manganese dioxide, Cosmochim. Acta. 43, 781–787.
Alkan M., Demirbas, O., elikcapa S., and Dogan M., (2004) Sorption of acid red 57 from aqueous solution onto sepiolite, J. Hazard. Mater. 116, 135–145.
Aksu Z. and Kabasakal E., (2004) Batch adsorption of 2, 4-dichlorophenoxy-acetic acid (2, 4-D) from aqueous solution by granular activated carbon, Sep. Purif. Technol. 35, 223–240.
Browse journals by subject