Investigation of Electrocoagulation Process Efficiency for Color Removal from Polyacrylic Textile Industrial astewater

Document Type : Research Paper


Dyes due to coloring nature are appearance pollutants and destroys the transparency and aesthetic quality of surface waters even at relatively low concentration. Several processes have been used for dye removal from wastewater. In recent years, electrochemical methods have been successfully employed to treat dying wastewater.In this study, the electrocoagulation method with aluminum electrodes were used for polyacrylic textile wastewater treatment. COD of wastewater was 1400mg/l. This study was conducted in laboratory scale. The sample was placed in to the electrochemical reactor contains 4 electrodes. The electrodes were connected to a DC power supply. Then the effect of the three operational parameters, electrolysis time (20-60 minutes), electrical applied current (0.5-2.5 Ampere) and pH (4-9) on color and COD removal efficiency has been investigated. The results showed that the color and COD removal efficiency is a direct relation with increasing of the reaction time and inverse relation with increase of pH. Optimum operation conditions were in applied current of 1.5 A, the retention time of 60 minutes and pH of 4. In this condition, color and COD removals were 86% and 85%, respectively. This study showed that electrocoagulation process is an effective and efficient method to treatment of polyacrylic textile wastewater.


1- Zaied, M., and Bellakhal, N. (2009). “Electrocoagulation treatment of black liquor from paper industry.” J. of Hazardous Materials, 163, 995-1000.
2- Kobya, M., Demirbas, E., Can, O.T., and Bayramoglu, M. (2006). “Treatment of levafix orange textile dye solution by electrocoagulation.” J. of Hazardous Materials, 132,183-188.
3- Zin, N.S.B. (2005). “Decolourisation of dye solution containing azo acid orange 7 by electricity.” M.Sc. Thesis, Malaysia Technology University, Malaysia.
4- Daneshvar, N., Ashassi-Sorkhabi, H., and Tizpar, A. (2003). “Decolorization of orange II by electro coagulation method.” J. of Separation and Purification Technology, 31,153-162.
5- Diez, M.C., Mora, M.L., and Videla, S. (1999). “Adsorption of phenolic compounds and color from bleached Kraft mill effluent allophonic compounds.” J. of Water Research, 33(1), 125-130.
6- Clark, T., Bruce, M., and Anderson, S. (1994). “Decolarization of extraction stage bleach plant  effluent by combined hypochlorite oxidation and anaerobic treatment.” J. of Water Science and Technology, 29(5-6), 421-432.
7- Kobya, M., Can, O.T., and Bayramoglu, M. (2003). “Treatment of textile wastewaters by electrocoagulation using iron and aluminum electrodes.” J. of Hazardous Materials, 100, 163-178.
8- Vlyssides, A.G., Papaioannou, D., Loizidoy, M., Karlis, P.K., and Zorpas, A.A. (2000). “Testing an electrochemical method for treatment of textile dye wastewater.” J. of Waste Management, 20, 569-574.
9- Aoudj, S., Khelifa, A., Drouicage, N., Hecini, M., and Hamitouche, H. (2010). “Electrocoagulation process applied to wastewater containing dyes from textile industry.” J. of Chemical Engineering and Processing, 49, 1176-1182.
10- Alinasafi, A., Khemis, M., Pons, M.N., Leclerc, J.P., Yaacoubi, A., Benhammou, A., and Nejmeddine, A. (2005). “Electrocoagulation of reactive textile dyes and textile wastewater.” J. of Chemical Engineering and Processing, 44, 461-470.
11- Kilic, M.G.A. (2004). “Parametric comparative study of electrocoagulation and coagulation of aqueous suspensions of kaolinite and quartz powders.” M.Sc. Thesis, University of Mahidol, Bangkok, Thailand.
12- Yousuf, M., Mollah, A., and Schennach, R. (2001). “Electrocoagulation (EC)-science and applications.” J. of Hazardous Material, 86, 29-41.
13- Sridhar, R., Sivakumar, V., Immanuel, V.P., and Maran, J.P. (2011). “Treatment of pulp and paper industry bleaching effluent by electrocoagulation process.” J. of Hazardous Materials, 186(2-3), 1495-1502.
14- Hanafi, F., Assobhei, O., and Mountadar, M. (2010). “Detoxification and discoloration of Moroccan olive mill wastewater by electrocoagulation.” J. of Hazardous Material, 174(1-3), 807-812.
15- Wei, F.J., Bing, S.Y., Zheng, Z., Biao Z.J., Shu, L., and Chun T.Y. (2007). “Treatment of tannery wastewater by electrocoagulation.” J. of Environmental Sciences, 19, 1409-1415.
16 - Pouet, M.F., and Grasmick, A. (1995). “Urban wastewater treatment by electrocoagulation and flotation.” J. of Water Sci. Technol., 31, 275-283.
17- Adhoum, N., Monser, L., Bellakhal, N., and Belgaied, J.E. (2004). “Treatment of electroplating wastewater containing Cu2+, Zn2+ and Cr(VI) by electrocoagulation.” J. of Hazardous Materials, 112, 207-213.
18- Wang, C.T., Chou, W.L., and Kuo, Y.M. (2009). “Removal of COD from laundry wastewater by electrocoagulation/electroflotation.” J. of Hazardous Material, 164, 81-86.
19- Beck, E.C., Giannini, A.P., and Ramirez, E.R. (1974). “Electrocoagulation clarifies food wastewater.” J. of Food Technol., 22, 18-19.
20- Koparal, A.S., and Ogutveren, U.B., (2002). “Removal of nitrate from water by electroreduction and electrocoagulation.” J. of Hazardous Materials, 89, 83-94.
21- Bensadok, K., Belkacem, M., and Nezzal, G. (2007). “Treatment of cutting oil/water emulsion by coupling coagulation and dissolved air flotation.” J. of Desalination, 206, 440-448.
22- Chen, X., Chen, G., and Yue, P.L. (2000). “Separation of pollutants from restaurant wastewater by electrocoagulation. J. of Sep. Purif. Technol., 19, 65-76.
23- Kobya, M., Hiz, H., Senturk, E., Aydiner, C., and Demirbas, E. (2006). “Treatment of potato chips manufacturing wastewater by electrocoagulation”. J. of Desalination, 190, 201-211.
24- Ilhan, F., Kurt, U., Apaydin, O., and Gonullu M.T. (2007). “Treatment of leachate by electrocoagulation using aluminum and iron electrodes.” J. of Hazardous Material, 154(1-3), 381-389.
25- Djafarzadeh, N., and Daneshvar, N. (2006). “Treatment of textile wastewater containing basic dyes by electrocoagulation process.” J. of Water and Wastewater, 57, 22-29. (In Persian)
26- Rahmani, A.R., and Samarghandi, M.R. (2009). “Electrocoagulation treatment of color solution containing colored index Eriochrome Black T.” J. of Water and Wastewater, 69, 52-58. (In Persian)
27- APHA. (1998). Standard methods for the examination of water and wastewater, 20th Ed., American Public Health Association, Washington D.C.
28- Kitkaew, D. (2004). “Color removal from textile wastewater by electrochemical process.” M.Sc. Thesis, School University of Mahidol, Bangkok, Thailand.
29- Merzouk, B., Gourich, B., Sekki, A., Madani, K.,Vial, Ch., and Barkaoui, M. (2009).“Studies on the decolorization of textile dye wastewater by continuous electrocoagulation process.” J. of Chemical Engineering, 149, 207-214.
30- Cerqueira, A., Russo, C., and Marques, M.R.C. (2009). “Electroflocculation for textile wastewater treatment.” J. of Chemical Engineering, 26(4), 659-668.
31- Alaton, I.A., Kabdasli, I., Vardar, B., and Tunay, O. (2009). “Electrocoagulation of simulated reactive dyebath effluent with aluminum and stainless steel electrodes.” J. of Hazardous Materials, 164, 1586-1594.
32- Mouedhen, G., Feki, M., Wery, M.D.P., and Ayedi, H.F. (2008). “Behavior of aluminum electrodes in electrocoagulation process.” J. of Hazardous Materials, 150, 124-135.
33- Ahmadi Moghadam, M., and Amiri, H. (2010). “Investigation of TOC removal from industrial wastewater using electrocoagulation process.” J. of Health and Environment, 3(2), 186-193.