کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9680864 | 1455506 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Homoporous and heteroporous membrane models in describing key separative parameters of semipermeable membranes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A heteroporous membrane model consisting of two membranes (actually suitable to any number of membranes) differing in their separative parameters is advanced. This model has been verified using a number of industrial reverse osmosis and ultrafiltration membranes made of cellulose acetate as well as two nanofiltration ones. The experimental and computed results are in reasonable agreement, particularly taking into account the oversimplified and somewhat mechanistic character of the approach. The results reached clearly and convincingly illustrate the detrimental role which can be played by the presence of even a minor fraction of highly permeable and slightly retentive sections in the membrane structure, that is, the presence of imperfect sites as these often called.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 184, Issues 1â3, 1 November 2005, Pages 89-97
Journal: Desalination - Volume 184, Issues 1â3, 1 November 2005, Pages 89-97
نویسندگان
Eugene Tsapiuk, Ludmyla Melnyk,