کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
641614 | 1457008 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of metal ions on the protein fouling of hollow-fiber ultrafiltration membranes
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of metal ions on the protein fouling of hollow-fiber ultrafiltration membranes Effect of metal ions on the protein fouling of hollow-fiber ultrafiltration membranes](/preview/png/641614.png)
چکیده انگلیسی
Raw water and aqueous solutions processed by membrane filtration usually contain metal ions or colloids to some extent. In this work, we studied the effects of the ionic environment and metal colloids on the protein fouling of hollow fiber ultrafiltration membranes. The addition of calcium ions to a feed protein solution caused severe casein fouling, but no change in BSA or lysozyme fouling. The addition of FeCl3 to a feed BSA solution caused severe fouling, even at 0.05Â mM FeCl3, while lysozyme fouling was relatively unaffected by the addition of FeCl3. Field emission-scanning electron microscopy and energy dispersion spectroscopy revealed the deposition of BSA and iron on the fouled membranes. Dynamic light scattering indicated that casein aggregation was induced by calcium ions, and that a BSA/iron colloid complex formed in the presence of FeCl3; both of these factors caused increased fouling. The addition of dithiothreitol to a BSA/FeCl3 solution suppressed the fouling to some extent, probably because of the decomposition of the BSA/iron colloids complex.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 111, 25 June 2013, Pages 137-144
Journal: Separation and Purification Technology - Volume 111, 25 June 2013, Pages 137-144
نویسندگان
Yan Hao, Akihito Moriya, Yoshikage Ohmukai, Hideto Matsuyama, Tatsuo Maruyama,