Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received June 27, 2016
Accepted December 17, 2016

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

Experimental study on electrocoagulation of textile wastewater by continuous horizontal flow through aluminum baffles

Mayur Ashok Ubale^† Vitthal Dnyandeo Salkar

Department of Civil Engineering, Walchand College of Engineering, Sangli, Maharashtra 416415, India

Korean Journal of Chemical Engineering, April 2017, 34(4),
10.1007/s11814-016-0351-8

Download PDF

Abstract

We investigated the feasibility of applying a continuous textile wastewater (TWW) treatment, which was accomplished by using electrocoagulation (EC) unit with zigzag horizontal flow across a series of mono-polar aluminum plate baffles. The effects of operating parameters such as current density (20-80 A/m2) and detention time (5-40 min) on turbidity, color, chemical oxygen demand (COD), total suspended solids (TSS) and total dissolved solids (TDS) removal were studied. The optimum conditions were determined as 60 A/m2 and 20min by monitoring zeta potential (ζ) of effluent. At the optimum conditions, removal efficiencies for turbidity (97.63%), color (87.87%), COD (93.3%), TSS (94.02%), and TDS (52.13%) were observed. Further, addition of 4mg/L of NaCl dose in the TWW modified conductivity suitably, thereby reducing electrical energy consumption per cubic meter of waste water and specific electrical energy consumption (SEEC) from 13.33 to 2.67kWh/m3, and 23.84 to 4.77kWh/kg Al, respectively. Comparing the EC with conventional coagulation process, EC showed better pollutant removal efficiency.

Keywords

Electrocoagulation Continuous Flow Unit Textile Wastewater Aluminum Baffles Zeta Potential

References

Kobya M, Demirbas E, Akyol A, Water Sci. Technol., 60, 2261 (2009)
Murthy ZVP, Parmar S, Desalination, 282, 63 (2011)
Merzouk B, Yakoubi M, Zongo I, Leclerc JP, Paternotte G, Pontvianne S, Lapicque F, Desalination, 275(1-3), 181 (2011)
Chenik H, Elhafdi M, Dassaa A, Essadki A, Azzi M, React. J. Water Res. Protect., 5, 1000 (2013)
Naje A, Chelliapan S, Zakaria Z, Ajeel M, Sopian K, Hasan H, RSC Adv., 612, 10192 (2016)
Daghrir R, Drogui P, Blais J, Mercier G, J. Environ. Eng.-ASCE, 138, 1146 (2012)
Merzouk B, Gourich B, Sekki A, Madani K, Vial C, Barkaoui M, Chem. Eng. J., 149(1-3), 207 (2009)
Den W, Huang C, Water Sci. Technol., 53, 187 (2006)
Den W, Huang CP, Ke HC, Ind. Eng. Chem. Res., 45(10), 3644 (2006)
Nandi B, Patel S, Arabian J. Chem., In Press (2013).
Den W, Huang C, Ke H, J. Environ. Eng., 132, 1651 (2006)
Zodi S, Merzouk B, Potier O, Lapicque F, Leclerc J, Sep. Purif. Rev., 108, 215 (2013)
Akyol A, Desalination, 285, 91 (2012)
Rincon G, Motta E, J. Environ. Manage., 144, 42 (2014)
Harif T, Khai M, Adin A, Water Res., 46, 3177 (2012)
Garcia-Garcia A, Martinez-Miranda V, Martinez-Cienfuegos IG, Almazan-Sanchez PT, Castaneda-Juarez M, Linares-Hernandez I, Fuel, 149, 46 (2015)