화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.30, No.6, 742-748, December, 2019
DOI10.14478/ace.2019.1092  Export Citation
Effects of Operational Parameters on the Removal of Acid Blue 25 Dye from Aqueous Solutions by Electrocoagulation
Davoud Balarak, Fatemeh Ganji1, Suk Soon Choi2, Seung Mok Lee3, †, and Moo Joon Shim3, †
  • Department of Environmental Health, Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
  • 1Department of Environmental Health, Student Research Committee, Zahedan University of Medical Sciences, Zahedan, Iran
  • 2Department of Biological and Environmental Engineering, Semyung University, Jecheon 27136, Korea
  • 3Department of Environmental Engineering, Catholic Kwandong University, Gangneung 25601, Korea
E-mail:,
Influence of several experimental parameters (e.g., initial dye concentration, pH, distance between electrodes, applied voltage, electrical conductivity, current density, and reaction time) on the performance of electrocoagulation (EC) process for the removal of acid blue 25 (AB25) was studied. A bipolar batch reactor was used to test the impact of the parameters. The removal efficiency (RE) of AB25 dye was promoted by increasing the contact time, voltage, electrical conductivity, and applied current density. In contrast, RE of AB25 decreased with higher level of AB25 and the longer distance between electrodes. The removal efficiency increased consistently until pH 7, but decreased above pH 7. The maximum efficiency of AB25 removal above 90% was obtained at a voltage of 60 V, reaction time of 90 min, distance between electrodes of 0.5 cm, initial concentration of 25 mg/L, conductivity of 3,000 μS/cm and pH of 7. These results imply that the high RE of AB25 dye from the aqueous solution can be achieved by EC process.
Keywords:Electrocoagulation;Acid blue 25;Aluminum electrodes
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