Treatability of tannery wastewater by electrocoagulation process

Fehiman Ciner, Ufuk Durmaz


This study investigated the treatability of tannery industry wastewater by electrocoagulation (EC). The wastewater sample was taken from a leather factory of Mixed Organized Industrial District in Bor-Niğde, Turkey. Treatment of the wastewater was carried out by an electrochemical batch reactor equipped with aluminum electrodes, which were connected parallel to each other. In the EC of the wastewater, the effects of pH, current density and electrolysis time were examined. The optimum operating conditions were determined and applied to the process. The optimum current density for removal of COD and TSS in the tannery wastewater were 18.9 mA/cm2 and 22.7 mA/cm2 at 20 min electrolysis time and pH 6, respectively. The obtained results indicate that EC reactor is the applicable option to treat tannery industry wastewater in terms of removal efficiency and operating cost.


COD, Electrocoagulation, Leather Tannery wastewater, Organized industrial district

Full Text:



. A. Deghles and U. Kurt, “Treatment of tannery wastewater by a hybrid electrocoagulation/ electrodialysis process”,Chemical Engineering and Processing vol. 104, pp.43–50, 2016.

. İ.A. Şengil, S. Kulaç and M. Özacar, “Treatment of tannery liming drum wastewater by electrocoagulation”,Journal of Hazardous Materials, vol. 167, pp. 940-946, 2009.

. L. Szpyrkowicz, G.H. Kelsall, S.N. Kaul and M.D. Faveri, “Performance of electrochemical reactor for treatment of tannery wastewaters”, Chem. Eng. Sci., vol. 56, pp.1579–1586,2001.

. A. Cassano, R. Molinari, M. Romano and E. Drioli, “Treatment of aqueous effluents of the leather industry by membrane processes: A review”, J. Membr. Sci.,vol. 181, pp. 111–126, 2001.

. F.M. Menezes, R. Amal and D. Luketina, “Removal of particles using coagulation and flocculation in a dynamic separator”, Powder Technol., vol. 88, pp.27–31, 1996.

. Z. Song, C.J. Williams and R.G.J. Edyvean, “Treatment of tannery wastewater by chemical coagulation”, Desalination, vol. 164, pp. 249–259, 2004.

. K. M. Zeinu and O. Sahu, “Adsorption of Chromium From Tannery Wastewater by Surface Response Method”, Environmental Quality Management, DOI 10.1002 tqem, 2015.

. U. Kurt, Ö. Apaydın and M.T. Gönüllü, “Reduction of COD in wastewater from an organized tanneryindustrial region by Electro-Fenton process”,Journal of Hazardous Materials, vol. 143, pp. 33–40, 2007.

. R. Ramesh Babu, N.S. Bhadrinarayana, K.M. Meera and S. Begum, “Treatment of tannery waste water by electro-coagulation”, J Univ Chem Technol Metall, vol. 42(2), pp. 201–206, 2007.

. Keerthi, V. Vinduja and N. Balasubramanian, “Electrocoagulation-integrated hybrid membrane processesfor the treatment of tannery wastewater”, Environ Sci Pollut Res, vol. 20, pp. 7441–7449, 2013.

. M. Kobya, E. Demirbas, M. Bayramoglu and M.T. Sensoy, “Optimization of electrocoagulation process for the treatment of metal cutting wastewaters with response surface methodology”, Water Air Soil Pollut, vol. 215, pp.399–410, 2011.

. A. Akyol, O.T. Can, E. Demirbas and M. Kobya, “A comparative study of electrocoagulation and electro- Fenton for treatment of wastewater from liquid organic fertilizer plant”, Sep. Purif. Technol., vol. 112, pp. 11–19, 2013.

. G. Varank, S. Yazici Guvenc, G. Gurbuz and G. Onkal Engin, “Statistical optimization of process parametersfor tannery wastewater treatment byelectrocoagulation and electro-Fenton techniques”, Desalination and Water Treatment,doi: 10.1080/19443994.2016.1157042, pp. 1-14, 2016.

. C. Phalakornkule, P. Sukkasem and C. Mutchimsattha, “Hydrogen recovery from the electrocoagulation treatment of dye-containing wastewater”, Int. J. Hydrogen Energy, vol. 35, pp. 10934–10943, 2010.

. P. Holt, G. Barton and C. Mitchell, “Electrocoagulation as wastewater treatment”, The Third Annual Australian Environmental Engineering Research Event, 23–26 November, 1999, pp. 23–26.

. B.G. Chen, X. Chen and P.L. Yue, “Electrocoagulation and electroflotation of restaurant wastewater”, J. Environ. Eng.,vol. 126 (9),Paper No. 21505, 2000.

. R. Katal and H. Pahlavanzadeh, “Influence of different combinations of aluminum and iron electrode on electrocoagulation efficiency: Application to the treatment of paper mill wastewater”, Desalination, vol. 265, pp.199–205, 2011.

. G. Chen, “Electrochemical technologies in wastewater treatment”, Sep. Purif. Technol., vol. 38, pp. 11–41, 2004.

. K. Thirugnanasambandham and V. Sivakumar, “Removal of ecotoxicological matters from tannery wastewater using electrocoagulation reactor: modelling and optimization”, Desalination and Water Treatment, vol. 57, pp. 3871-3880, 2016.



  • There are currently no refbacks.

Copyright (c) 2017 Periodicals of Engineering and Natural Sciences (PEN)

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

ISSN: 2303-4521

Digital Object Identifier DOI: 10.21533/pen

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License