کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
635716 | 1456103 | 2011 | 8 صفحه PDF | دانلود رایگان |
Three types of hollow fiber membrane were prepared from cellulose acetate (CA), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP) via the thermally induced phase separation (TIPS) method. The three membranes had almost the same water permeability, surface roughness and zeta potential. However, hydrophilicities clearly differed between the three membranes, decreasing in the order CA > CAB > CAP. Hydrophilicity, surface roughness, zeta potential, water permeability, solute rejection and other membrane properties affect membrane fouling and the latter is quite complex. In this work, the effect of changes in membrane hydrophilicity on fouling behavior was investigated, while other membrane properties were kept virtually constant. The most hydrophilic membrane, CA, showed the highest antifouling properties for humic acid and BSA. In addition, backwashing was most effective with the CA membrane. Thus, a hydrophilic membrane surface was useful for backwashing as well as reducing flux decline.
► Hollow fiber membranes with similar characteristics were fabricated from CA, CAB, and CAP.
► The most hydrophilic CA membrane showed the highest antifouling properties for BSA.
► Hydrophilic membrane showed a higher backwashing effect depending on its hydrophilicity.
Journal: Journal of Membrane Science - Volume 376, Issues 1–2, 1 July 2011, Pages 102–109