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Preparation and characterization of a high antibiofouling ultrafiltration PES membrane using OCMCS-Fe3O4 for application in MBR treating wastewater | ||
| Journal of Applied Research in Water and Wastewater | ||
| مقاله 4، دوره 1، شماره 1، خرداد 2014، صفحه 13-17 اصل مقاله (1.04 M) | ||
| نوع مقاله: Research Paper | ||
| نویسندگان | ||
| Zahra Rahimi؛ Ali Akbar Zinatizadeh* ؛ Sirus Zinadini | ||
| Water and Wastewater Research Center (WWRC), Department of Applied Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran. | ||
| چکیده | ||
| An innovative method based on the membrane bioreactor (MBR) technology was developed as a potential remedy for the water shortage. MBRs attracted much attention in the field of wastewater treatment and reuse. It is reported from many researchers that membrane bioreactor technology is feasible and an efficient method for the treatment of wastewater. However, MBRs are faced to membrane fouling which lead to short membrane lifetime and increase operating costs. Here we modified polyethersulfone (PES) ultrafiltration membrane by blending of O-carboxymethyl chitosan/ Fe3O4 nanoparticles in a PES solution (14% polymer weight) and casted by a phase inversion process. Membranes with four different weight percentages of O-Carboxymethyl chitosan bound Fe3O4 magnetic nanoparticles (OCMCs-Fe3O4) to PES of 0.05, 0.10, and 1 wt. % were tested. The OCMCS-Fe3O4 nanoparticles were prepared by the binding of carboxymethyl chitosan (CC) onto the surface of Fe3O4 magnetic nanoparticles, which were prepared by co-precipitating method. The synthesized nanoparticles were characterized by the Fourier transform infrared (FTIR) technique. Moreover, OCMCS-Fe3O4 nanoparticales blend membranes were also characterized using scanning electron microscopy (SEM), and permeation tests. Antifouling performance was studied using activated sludge as a biological suspension and measuring the pure water flux recovery ratio (FRR). The 0.1 wt. % OCMCS-Fe3O4-PES membrane revealed the highest FRR value (89%). The results exhibited that addition of OCMCS-Fe3O4 nanoparticales lead to membranes with high pure water flux compared to the unmodified PES membrane. | ||
| کلیدواژهها | ||
| Membrane bioreactor؛ Antifouling؛ Ultrafiltration؛ Carboxymethyl chitosan-Fe3O4 | ||
| مراجع | ||
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