کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
642881 | 884344 | 2010 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of hexamethyl phosphoramide on polyamide composite reverse osmosis membrane performance
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of hexamethyl phosphoramide on polyamide composite reverse osmosis membrane performance Influence of hexamethyl phosphoramide on polyamide composite reverse osmosis membrane performance](/preview/png/642881.png)
چکیده انگلیسی
In this study, TFC RO membranes were prepared through interfacial polymerization with hexamethyl phosphoramide (HMPA) as an additive in the aqueous phase. There are two main highlights as follows: ⶠThe flux of the membrane was greatly enhanced by the addition of HMPA, while maintaining good salt rejection. The flux and salt rejection of MH-3 membrane (3 wt% HMPA addition) reached 51.67 L/m2 h and 98.27%, respectively, for 2000 mg/L NaCl under 1.55 MPa. The flux increased by 73% and the salt rejection loss was less than 0.21% compared with the non-additive membrane. ⶠThe colloidal silica fouling experiments results suggested that conventional roughness parameters such as Ra, Rms and Πwere insufficient to explain the colloidal fouling behavior in our study. We think that the average peak-valley distance and average peak spacing width on the membrane surface were related to the membrane fouling behavior.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 75, Issue 2, 13 October 2010, Pages 145-155
Journal: Separation and Purification Technology - Volume 75, Issue 2, 13 October 2010, Pages 145-155
نویسندگان
Meirong Duan, Zhi Wang, Jun Xu, Jixiao Wang, Shichang Wang,