A Study on the Removal of Direct Blue 71 Dye From Textile Wastewater Produced From State Company of Cotton Industries by Electrocoagulation Using Aluminum Electrodes

Authors

  • Karim Khalifa Esgair, Lecturer Department of Chemical Industries-Al-Technology Institute/Baghdad- Middle Technical University

DOI:

https://doi.org/10.31026/j.eng.2017.02.06

Keywords:

blue dye, color removal, electrocoagulation, textile wastewater, water treatment.

Abstract

The removal of direct blue 71 dye from a prepared wastewater was studied employing batch electrocoagulation (EC) cell. The electrodes of aluminum were used. The influence of process variables which include initial pH (2.0-12.0), wastewater conductivity (0.8 -12.57) mS/cm , initial dye concentration (30 -210) mg/L, electrolysis time  (3-12) min, current density (10-50) mA/cm2   were studied in order to maximize the color removal from wastewater. Experimental results showed that the color removal yield increases with increasing pH until pH 6.0 after that it decreased with increasing pH. The color removal increased with increasing current density, wastewater conductivity, electrolysis time, and decreased with increasing the concentration of initial dye. The maximum color removal yield of 96.5% was obtained at pH 6.0, wastewater conductivity 9.28 mS/cm , electrolysis time 6  min ,the  concentration of  initial dye  6  0 mg/L and current density 30 mA/cm2 .

 

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How to Cite

“A Study on the Removal of Direct Blue 71 Dye From Textile Wastewater Produced From State Company of Cotton Industries by Electrocoagulation Using Aluminum Electrodes” (2017) Journal of Engineering, 23(2), pp. 83–94. doi:10.31026/j.eng.2017.02.06.

Publication Dates

Published

2017-01-31

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