Degradation and Mineralization of Malachite Green Dye in Aqueous Solution by Electro-Fenton Process Using Iron Electrodes
محل انتشار: مجله گزارشات و فناوری سلامت، دوره: 4، شماره: 1
سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 391
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شناسه ملی سند علمی:
JR_IJHLS-4-1_002
تاریخ نمایه سازی: 6 آذر 1397
چکیده مقاله:
The electrochemical degradation of a synthetic solution of malachite green (MG) was studied using electro-Fenton process (EFP) under batch conditions. The studies used iron electrodes to investigate the influence of operating parameters such as reaction temperature, distance between the electrodes, electrolysis time, and initial dye concentration. The values of 1 cm as distance between the electrodes and 50°C as temperature were found to be the optimum operating parameters for the efficient degradation of MG dye. When the temperature was greater than 50°C, H2O2 self-decomposed. After 30 minutes of electrolysis, TOC removal was only 76.5% when no H2O2 was added to the solutions (ECP), while the presence of H2O2 greatly improved TOC removal by more than 95%.For a solution of 1000mgL-1 MGdye, degradation was complete after only 30 minutes. Furthermore, despite high removal efficiency of COD in EFP, energy consumption was less than in ECP.
کلیدواژه ها:
نویسندگان
Maryam Teimouri
Department of Environmental Health Engineering, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
Hassan Khorsandi
Department of Environmental Health Engineering, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
Ali Ahmad Aghapour
Department of Environmental Health Engineering, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
Seyed Javad Jafari
Department of Environmental Health Engineering, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran