سال انتشار: ۱۳۸۸

محل انتشار: اولین کنفرانس بین المللی تصفیه فاضلاب و بازیافت آب، فناوری ها و یافته های نو

تعداد صفحات: ۷

نویسنده(ها):

A Rahimpour – Nanobiotechnology research laboratory, faculty of Chemical Engineering, Babol University of Technology, P.O.Box 484, Babol, Iran
M Jahanshahi – Nanobiotechnology research laboratory, faculty of Chemical Engineering, Babol University of Technology, P.O.Box 484, Babol, Iran
N Mortazavian – Nanobiotechnology research laboratory, faculty of Chemical Engineering, Babol University of Technology, P.O.Box 484, Babol, Iran

چکیده:

In the current study, a novel thin film composite nanofiltration membrane was prepared by interfacial polymerization and evaluated for water softening. Its nanofiltration performance was evaluated by cross flow filtration using NaCl (1 g/l) and MgSO4 (1 g/l) solution at 5 and 10 bars, 25 °C and 10 l/min. The morphological study was investigated by SEM and AFM. In addition, the hydrophilicity of membranes was examined by contact angel measurements. Thin-film composite polyamide nanofiltration membrane was fabricated using interfacial polymerization of 1, 3-phenylenediamine (PDA) with trimesoyl chloride (TMC) onto PES ultrafiltration membrane prepared with immersion precipitation technique. A rough, dense and hydrophile film was formed on the PES support membrane by interfacial polymerization. The water permeability of composite membrane was 7 and 21 kg.m -2.h-1 at 5 and 10 bars, respectively. Moreover, the rejection to the divalent salt MgSO4 (85 and 90%) was high compared to the monovalent salt NaCl (64 and 67%).