Investigating the Performance of the Photo-Fenton Process of the Naphthalene Removal from Petroleum Wastewater
سال انتشار: 1403
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 26
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شناسه ملی سند علمی:
JR_IJCCE-43-11_014
تاریخ نمایه سازی: 16 خرداد 1404
چکیده مقاله:
The present research investigated the Photo-Fenton process's effect on Naphthalene's decomposition in petroleum wastewater. The research was conducted on a laboratory scale and in a discontinuous manner. The effect of pH (۲, ۴.۵, ۷), Fe۲+(۵, ۴۲.۵, ۸۰ mg/L), H۲O۲(۵۰, ۴۲۵, ۸۰۰mg/L), UV (۸, ۱۶, ۲۴ w in the wavelength ۲۵۴ nm), and time (۱۰, ۶۵, ۱۲۰ min) on the removal of Naphthalene (۱۰, ۴۰, ۷۰ µg/L) in synthetic wastewater was investigated. All the experiments were done continuously in ۱-liter Erlenmeyer flasks at a constant speed of ۳۰۰ rpm and at room temperature. To investigate the effect of independent variables on the efficiency of Naphthalene removal, the response surface method was used on the box-Behnken design and based on a ۶-variable in three levels with three central points, ۵۴ experiments were designed and executed. The research results showed an increase in the initial concentration of H۲O۲, and the removal efficiency of Naphthalene from the wastewater also increased. At the concentration of ۷۵۰ mg/L, the decomposition and removal of Naphthalene increased up to ۹۳.۶%. The optimal limit of Fe۲+ concentration in removing Naphthalene from wastewater was also determined at ۴۲.۵ mg/L. The removal process of Naphthalene from wastewater was also improved in acidic pH (۳). The removal of Naphthalene has also increased in the ۲۴w light range and has reached ۹۱.۴%. The results of investigating the effect of reaction time showed that the percentage of Naphthalene decomposition and removal has also increased, and the best efficiency was reached in ۸۰ to ۱۰۰ minutes. Notably, a negative correlation was observed between Fe۲+ concentration and UV radiation on removing Naphthalene. Finally, in optimal conditions, the removal efficiency of Naphthalene using the Photo-Fenton method is estimated to be more than ۹۸%. The present research results show the optimal efficiency of the Photo-Fenton process in the decomposition of Naphthalene.
کلیدواژه ها:
نویسندگان
Goharol Sharieh Barati
Department of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, I.R. IRAN
Mehdi Borghei
Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, I.R. IRAN
Reza jalilzadeh Yengejeh
Department of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, I.R. IRAN
Afshin Takdastan
Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, I.R. IRAN; Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, I.R. IRAN
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