کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
638610 1456175 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of nanofiltration hollow fibre membranes, developed by photografting, to treatment of anionic dye solutions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Application of nanofiltration hollow fibre membranes, developed by photografting, to treatment of anionic dye solutions
چکیده انگلیسی

New hollow fibre nanofiltration membranes have been developed by UV-photografting using sodium p-styrene sulfonate (NaSS) as a vinyl monomer. The influence of different parameters on the grafting process such as irradiation time, quantity of received UV energy by the membrane and addition of photoinitiator, on the performances and the characteristics of the membranes were examined. The molecular weight cut-off of the grafted hollow fibres was estimated using different PEG solutions. The grafted membranes were also evaluated for the removal of different anionic dyes (Acid, Direct and Reactive dyes) with an aim to reuse the dye and the water in the process house. It is observed that the newly developed hollow-fibre membranes show performances which are close to that of an “ideal” membrane adapted to the treatment of dye effluents. For example, a negatively charged hollow fibre with a 4500 Da cut-off can be used to concentrate a saline direct red 80 solution with a high flux (15 × 10−5 l h−1 m−2 Pa−1 (15 l h−1 m−2 bar−1)), a high dye rejection (R > 97%) and a salt retention lower than 2%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 297, Issues 1–2, 5 July 2007, Pages 243–252
نویسندگان
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