Electrocoagulation of textile wastewater containing a mixture of organic dyes by iron electrode
Keywords:organic dyes, electrochemical treatment, removal efficiency
AbstractThis study focused on testing the efficacy of iron (Fe) electrode in an electrochemical treatment (electrocoagulation) of wastewater containing a mixture of organic dyes. The mixture consists of the following azo dyes: Acid Black 194, Acid Black 107 and Acid Yellow 116. The present organic dyes are toxic, cause skin and eye irritation and are extremely dangerous to aquatic organisms. The study was conducted on a synthetic wastewater prepared in a laboratory electrochemical reactor. During the research, the impact of the current density, various concentrations of dye and supporting electrolyte, electrolysis duration and pulsed current regime were tracked. The results are shown through color removal efficiency, chemical oxygen demand (COD) removal efficiency, current efficiency, and specific energy consumption. At the initial concentration of dye (γ=200 mg/L) and concentration of supporting electrolyte (γNaCl=1 g/L) the color removal efficiency of 80.64% was achieved for 420 seconds of treatment (ј=10 mA/cm2). At the initial concentration of dye (γ=50 mg/L) and γNaCl= 8 g/L, the color removal efficiency of 96.01% was attained for 300 seconds of treatment (ј=10 mA/cm2)
F. M. D. Chequer, J. P. F. Angeli, E. R. A.Ferraz, M. S. Tsuboy, J. C. Marcarini, M. S. Mantovani, D. P. De Oliviera, Mutation Research/Genetic Toxicology and Environmental Mutagenesis, 676(1-2) (2009) 83-86.
F. P. Van Der Zee, G. Lettinga, J. A. Field, Chemosphere 44(5) (2001) 1169-1176.
E. Fernando, PhD thesis, University of Westminster, Faculty of Science and Technology, 2014.
Z. Yu, X. Wen, Int. Biodeterior. Biodegrad. 56(2) (2005) 109-114.
P. Rajaguru, L. J. Fairbairn, J. Ashby, M. A. Willington, S. Turner, L. A. Woolford, N. Chinnasamy, J. A. Rafferty, Mutation Research 444(1) (1999) 175-180.
G. A. Umbuzeiro, H. Freeman, S. H. Warren, F. Kummrow, L. D. Claxton, Food and Chemical Toxicology 43(1) (2005) 49-56.
A. Pandey, P. Singh, L. Iyengar, International Biodeterioration & Biodegradation 59(2) (2007) 73-84.
C. A. Martinez-Huitle, E. Brillas, Applied Catalysis B: Envıronmental 87(3-4) (2009) 105-145.
E. Bagda, E. Bagda, Journal of Environmental Protection and Ecology 13(2) (2012) 517–531.
C. Zaharia, D. Suteu, Journal of Environmental Protection and Ecology 15(4) (2014) 1680–1689.
G. Demir, Journal of Environmental Protection and Ecology 11(1) (2010) 7–19.
B. N. Malinovic, M. G. Pavlovic, Journal of Electrochemical Science and Engineering 6(1) (2016) 67-75.
C. E. Barrera-Díaz, G. Roa-Morales, P. B. Hernández, C. M. Fernandez-Marchante, M. A. Rodrigo, Journal of Electrochemical Science and Engineering 4(4) (2014) 285-296.
G. Chen, Separation and Purification Technology 38(1) (2004) 11–41.
P. Kariyajjanavarl, J. Narayanal, Y. A. Nayaka, Hydrology Current Research 2(1) (2011) 1-7.
A. Alaton, I. Kabdasli, Y. Sahin, The Open Environmental & Biological Monitoring Journal 1(1) (2008) 1-7.
J. Zhou, C. Deng, S. Si, Y. Shi, X. Zhao, Electrochim. Acta 56(5) (2011) 2062–2067.
K. Xie, L. Sun, C. Wang, Y. Lai, M. Wang, H. Chen, C. Lin, Electrochimica Acta 55 (24) (2010) 7211–7218.
A. Molina, F. Martinez-Ortiz, E. Laborda, R.G. Compton, Electrochimica Acta 55 (18) (2010) 5163–5172.
B. Malinovic, M. G. Pavlovic, Yucorr XVII, Proceeding, Tara, Serbia, 2015, 85–93 (in Serbian).
N. Mameri, A. R. Yeddou, H. Lounici, D. Belhocine, H. Grib, B. Bariou, Water Research 32(5) (1998) 1604-1612.
Synthesia a.s. Safety Data Sheet. From http://dyes.synthesia.eu/organics-dyes/textile-dyes/ostalan-black-sr (2015, June 20).
AMERICAN PUBLIC HEALTH ASSOCIATION (APHA). Standard Methods of Water and Wastewater. 18th ed. American Public Health Association, American Water Works Association, Water Environment Federation publication. APHA, Washington D.C., 1992.
K. I. Popov, Periodično promenljivi režimi u elektrohemijskom taloženju metala, in: M. G. Pavlović, A.Dekanski [eds.] Primena pulsnih režima u galvanskoj tehnici: IHTM - Centar za elektrohemiju, Belgrade, Serbia, 1992, 49-73 (in Serbian).
B. Malinovic, M. G. Pavlovic, J. Mandic, Glasnik hemičara, tehnologa i ekologa Republike Srpske (9) (2013) 21-27 (in Serbian).
B. N. Malinovic, M. G. Pavlovic, N. Halilovic, Journal of Environmental Protection and Ecology 16(4) (2015) 1273-1281.
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