کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6974127 | 1453323 | 2018 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel electrocoagulation process using insulated edges of Al electrodes for enhancement of urban wastewater treatment: Techno-economic study
ترجمه فارسی عنوان
یک فرایند الکتروکواگولاسیون جدید با استفاده از لبه های عایق الکترود آلومینیومی برای بهبود تصفیه فاضلاب شهری: مطالعه تکنو اقتصادی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
A comparison between conventional process and novel process of insulated edges electrodes in a batch electrocoagulation (EC) reactor for the treatment of urban wastewater was undertaken to investigate the effect of current density, operating time and initial temperature on the treatment efficiency. The optimal experimental conditions are found to be: current density of 20 mA cmâ2, operating time of 6 min and initial temperature of 45 °C for phosphorous (P) and 55 °C for chemical oxygen demand (COD). The high removal efficiencies of COD and P using conventional electrodes system were found to be 89% and 99%, respectively. By comparison, the removal efficiencies using insulated edges of electrodes were achieved 91% for COD and 99.5% for P. The adsorption capacities of COD and P for conventional and novel processes were found to be 5930 mg COD kgâ1 and 80 mg P kgâ1, and 5860 mg COD kgâ1 and 77 mg P kgâ1, respectively. The sludge generated at optimum operating conditions using conventional and novel processes were calculated as 1.5 kg mâ3 and 1.8 kg mâ3, respectively. Also, insulated electrode process exhibited the ability to reduce the cost to 0.62 $ kgâ1 for COD and to 0.58 $ kgâ1 for P. The characterization study of produced sludge confirms that metal hydroxides and oxyhydroxides constitute the main components that contributed strongly to remove COD and P from urban wastewater.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Safety and Environmental Protection - Volume 116, May 2018, Pages 506-515
Journal: Process Safety and Environmental Protection - Volume 116, May 2018, Pages 506-515
نویسندگان
M. Elazzouzi, A. El Kasmi, K. Haboubi, M.S. Elyoubi,