کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
636565 1456127 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Performance of a novel ZrO2/PES membrane for wastewater filtration
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Performance of a novel ZrO2/PES membrane for wastewater filtration
چکیده انگلیسی

The membrane bioreactor (MBR) process has now become an attractive option for the treatment and reuse of industrial and municipal wastewaters. However, the MBR filtration performance inevitably decreases with filtration time due to membrane fouling. Over the past two decades, increased interests in improving the performance of filtration membranes (i.e., reducing membrane fouling) have encouraged the development of new classes of chemically modified membranes. In this study polyethersulfone (PES) membranes and membranes with five different weight ratios of ZrO2 to PES of 0.01, 0.03, 0.05, 0.07 and 0.1, were prepared by the phase inversion method and applied to activated sludge filtration in order to evaluate their fouling characteristics. The membranes were characterized using field-emission scanning electron microscope (FESEM). The ZrO2/PES membrane strengths were higher than those of the neat membrane. The membrane molecular weight cut-off (MWCO) and membrane thickness were slightly affected by the ZrO2 addition. ZrO2 entrapped membranes showed lower flux decline compared to the neat PES membrane, with fouling mitigation increasing with ZrO2 particles content. The optimum load of ZrO2 immobilized membranes for membrane bioreactor (MBR) application in terms of highest membrane permeability and lowest fouling rate was the 5% weight fraction of ZrO2 with PES.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 352, Issues 1–2, 15 April 2010, Pages 222–230
نویسندگان
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