Electrocoagulation Process Efficiency for Removing Effluent Pollution Caused by Drilling of Oil Rigs
سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 64
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شناسه ملی سند علمی:
JR_JAEHR-11-2_006
تاریخ نمایه سازی: 11 شهریور 1402
چکیده مقاله:
Background: Electrocoagulation (EC) is a safe method for removing environmental pollutants without the need for additional chemical materials. This study investigates the performance of EC in removing chemical oxygen demand (COD), total organic carbon (TOC), total suspended solids (TSS), and turbidity from drilling waste generated by oil rigs.Methods: An experimental study was performed on a pilot scale in an EC reactor provided from a cylindrical glass cell (height: ۳۰ cm and inner diameter: ۵ cm), a pair of aluminum and iron electrodes, a power supply, an aeration system. wastewater Samples were collected from one of the drilling rigs in Khuzestan. The effect of current density, operation time and pH parameters on removal of COD, TOC, TSS and turbidity were determined and the optimal values of the parameters were determined.Results: It was found that system voltage, operation time and pH values on the removal efficiency of pollutants were statistically significant at the ۰.۰۱ level. The optimum values of pH, current density and operation time were obtained ۷, ۲۰ mA/cm۲ and ۶۰ minutes, respectively and the removal efficiencies of COD, TOC, TSS and turbidity under the optimum conditions were ۷۲%, ۷۹%, ۶۷% and ۶۳%, respectively. Also, the consumption of energy was estimated to be ۸.۴ kWh/m۳.Conclusion: The results indicated that the EC process is a cost-effective method in removing pollutants caused by drilling of oil rigs and its efficiency can be improved by applying optimal conditions such as current density and pH.
کلیدواژه ها:
نویسندگان
Seyed Mehdi Ale-Tayeb
Department of Water Science, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran
Ehsan Derikvand
Department of Water Science, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran
Mohsen Solimani Babarsad
Department of Water Sciences, Water Science and Environmental Research Center, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran
Majid Razaz
Department of Water Science, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran
Hossein Eslami
Department of Water Science, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran
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