화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.2, 689-694, March, 2014
DOI10.1016/j.jiec.2013.05.034  Export Citation
Degradation of azo dye C.I. Acid Red 18 in aqueous solution by ozone-electrolysis process
J. Basiri Parsa†, M. Golmirzaei, and M. Abbasi1, †
  • Department of Applied Chemistry, Faculty of Chemistry, University of Bu-Ali Sina, Hamadan, Iran
  • 1Applied Chemistry Department, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
E-mail:,
In this paper, the degradation of azo dye C.I. Acid Red 18 (AR18) with initial concentration of 100 mg L^(-1) in aqueous solution by ozone-electrolysis process (OEP) as hybrid method of advance oxidation process was investigated. All experiments were performed in a 450 mL mixed semi-batch reactor to obtain the optimal conditions. The effects of NaCl concentration as supporting electrolyte, current density and initial pH on the removal efficiency of AR18 solution were investigated. The efficiency of color and TOC removal were compared as functional of degradation and decolorization of AR18. The results of UV/vis spectra showed that the AR18 structures were destroyed under ozone-electrolysis reaction. This investigation revealed ozone-electrolysis presents good efficiency for both solution decolorization and total organic carbon (TOC) removal. Results of experiments indicated that ozone-electrolysis process has a synergistic effect on decolorization rate of AR18.
Keywords:Degradation;Ozone-electrolysis;Wastewater;Acid Red 18
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