Preparation and characterization of novel thin film composite polyamide nanofiltration membranes for water treatment

سال انتشار: 1388
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,163

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شناسه ملی سند علمی:

ICAWTR01_206

تاریخ نمایه سازی: 20 اردیبهشت 1390

چکیده مقاله:

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%).

نویسندگان

A Rahimpour

Nanobiotechnology research laboratory, faculty of Chemical Engineering, Babol University of Technology, P.O.Box ۴۸۴, Babol, Iran

M Jahanshahi

Nanobiotechnology research laboratory, faculty of Chemical Engineering, Babol University of Technology, P.O.Box ۴۸۴, Babol, Iran

N Mortazavian

Nanobiotechnology research laboratory, faculty of Chemical Engineering, Babol University of Technology, P.O.Box ۴۸۴, Babol, Iran