کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
628523 1455488 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Natural organic matter fouling due to foulant–membrane physicochemical interactions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Natural organic matter fouling due to foulant–membrane physicochemical interactions
چکیده انگلیسی

An extended DLVO (XDLVO) force analysis was introduced to predict natural organic matter (NOM) fouling in ultrafiltration (UF) membrane processes. Ultrafiltration membrane fouling experiments were performed using two NOM extracts from real waters and two commercial polymeric UF membranes. The hydrodynamic force by permeation drag and three interfacial forces of XDLVO (van der Waals, electrostatic, acid–base energy) were used for the force analysis. Acid–base interaction forces between NOM and UF membranes were dominant in short range (separation distances < 5 nm) and appear to determine the potential of NOM deposition. Relative extents of flux decline were successfully predicted using the short-range force analyses.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 202, Issues 1–3, 5 January 2007, Pages 377-384