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Iranian Journal of Chemistry and Chemical Engineering، جلد ۴۳، شماره ۱، صفحات ۱۶۹-۱۸۰
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عنوان انگلیسی Treatment of Real Municipal Wastewater Using Aluminum Electrode by Electrocoagulation Process: Experimental Design and Process Performance
چکیده انگلیسی مقاله This study focuses on evaluating the electrocoagulation process as a method for the treatment of real municipal wastewater using aluminum plate electrodes as an anode in a batch electrochemical reactor. An attempt was made to model the Chemical Oxygen Demand (COD) removal and Electrical Energy Consumption (EEC) as a function of the critical operating variables for the determination of optimal conditions statistically. The initial pH, current, and reaction time were selected as key independent variables in a five-level Central Composite Design (CCD); at the same time,  COD removal efficiency and EEC were considered as the response function. At the optimum conditions proposed by CCD (pH=6.2, I=0.025A, and T=46 min), a maximum COD removal efficiency of 85.7% with electrical energy consumption of 0.151 kW h/m3 was achieved. In addition, the operating costs, energy; and electrode consumptions at optimum conditions were calculated to be 0.1127079 $/m3, 0.151 kWh/m3; and 0.026 kg/m3, respectively. These results presented here prove that the EC process has good performance and great potential for efficient treatment of real municipal wastewater.
کلیدواژه‌های انگلیسی مقاله Real municipal wastewater,electrocoagulation,Central composite design,Chemical oxygen demand,energy consumption
نویسندگان مقاله Farideh Nabizadeh Chianeh |
Department of Chemistry, Semnan University, Semnan, I.R. IRAN

نشانی اینترنتی https://ijcce.ac.ir/article_707439_02884b2f034fec8de8e432f8e8fb34d6.pdf
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