کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
232419 465286 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical model of electro-flotation
ترجمه فارسی عنوان
مدل الکتروشیمیایی الکترو شناور
کلمات کلیدی
الکترو شناور؛ چگالی جریان؛ معادله نرنست؛ معادله تافل؛ مدل فیک؛ قانون اهم
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

The relationship between the electrolysis voltage and the other variables (such as inter-electrode spacing, electric conductivity, current density, pH, bubble void fraction etc.) of an electro-flotation (EF) process using a Ti based anode is analyzed. The Nernst equation, Tafel equation, Fick’s model, and Ohm’s law are applied to determine the Nernst potential, activation overpotential, concentration overpotential and ohmic overpotential respectively. The simulation results are compared with experimental data of the present study as well as with data obtained from the literature. The good agreement of the comparison indicates that the models derived can be used to calculate the total electrolysis voltage required for an EF cell under different operating conditions. The effect of void fraction between electrodes on the electrolysis voltage of EF is experimentally investigated. The Bubble volumetric fraction between the electrodes was estimated to be 25%–35%, which significantly increases the cell resistance and hence overall cell potential.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Water Process Engineering - Volume 12, August 2016, Pages 78–88
نویسندگان
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