کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9684586 | 1456204 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Limiting current density of an ion-exchange membrane and of an electrodialyzer
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In an ion-exchange membrane electrodialyzer, solution velocities in desalting cells are not uniform between the cells incorporated in a stack. This event produces electrolyte concentration distribution between the cells and current density distribution in an electrodialyzer. When an electric current reaches the limiting current density of an ion-exchange membrane at the outlet of a desalting cell in which velocity and electrolyte concentration are the least, the average current density applied to an electrodialyzer is defined as the limiting current density of the electrodialyzer. In this study, the solution velocity distribution was measured using a practical and a semi-practical electrodialyzer. Further, we computed the relationship between the standard deviation of normal distribution of linear velocities in desalting cells and electrolyte concentration at the outlet of the desalting cell in which velocity and electrolyte concentration are the least. Based on the above computation and the evaluation of the limiting current of an ion-exchange membrane, the limiting current density of an electrodialyzer was determined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 266, Issues 1â2, 1 December 2005, Pages 6-17
Journal: Journal of Membrane Science - Volume 266, Issues 1â2, 1 December 2005, Pages 6-17
نویسندگان
Yoshinobu Tanaka,