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Submitted: 04 Jun 2020
Revision: 13 Jun 2020
Accepted: 22 Jun 2020
ePublished: 29 Jun 2020
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Avicenna J Environ Health Eng. 2020;7(1): 47-52.
doi: 10.34172/ajehe.2020.07
  Abstract View: 134
  PDF Download: 103

Original Article

Electrochemical Treatment of Textile Dye Bath Wastewater Using Activated Carbon Cloth Electrodes

Zelal Isik 1 ORCID logo, Bahar Ozbey Unal 2, Ahmet Karagunduz 3, Bulent Keskinler 3*, Nadir Dizge 1 ORCID logo

1 Department of Environmental Engineering, Mersin University, Mersin, Turkey.
2 Institute of Earth and Marine Sciences, Gebze Technical University, Kocaeli, Turkey.
3 Department of Environmental Engineering, Gebze Technical University, Kocaeli, Turkey.
Bulent Keskinler, Email :bkeskinler@gtu.edu.tr; Nadir Dizge, bkeskinler@gtu.edu.tr

Abstract

The performance of electrooxidation (EO) treatment using activated carbon cloth (ACC) electrodes on textile dye bath wastewater was investigated. ACC electrode pairs were used as anode/cathode for EO experiments. The effect of current density (50–150 A/m2), operating time (0–90 minutes), and solution pH (6-11) were tested for removal of chemical oxygen demand (COD), color, and chloride, as well as the changes in conductivity. 95.5% COD and color removal efficiencies were obtained at current density (CD) of 100 A/m2 at solution pH of 10 for 90 minutes. Moreover, the chloride concentration decreased from 4254 to 35.5 mg/L and solution conductivity decreased from 160 to 131 mS/cm at the same conditions. Operating cost of the EO process was calculated to be 3.13 US$/m3 for 36 kWh/m3 energy consumption. The results indicated that the EO process with ACC electrodes achieved high pollutant removal from textile dye bath wastewater.
Keywords: Textile dye bath wastewater, Electrooxidation, Activated carbon cloth electrodes,
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