期刊
DESALINATION
卷 372, 期 -, 页码 75-88出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.desal.2015.06.022
关键词
Nanocomposite membrane; Al2O3 nanoparticles; Concentration threshold
In this study the effects of Al2O3 nanoparticle concentration were investigated on the membrane structure/performance; the boundary of variations was detected, introduced as Nanoparticle Concentration Threshold (NCTh), and was used for forecasting the field of membrane application. For this purpose, Al2O3 nanoparticles with a size of 70 nm and a concentration between 0 and 0.52 Wt.% were added to the membrane matrix. Loading threshold of Al2O3 nanoparticles was evaluated and the properties of the nanocomposite membrane were compared up and sub the loading threshold. Rheometric analysis, contact angle measurement, SEM images, and filtration experiments showed that concentration threshold of Al2O3 nanoparticles was 0.39 Wt.%. Based on their properties, the antifouling performance of those membranes possessing Al2O3 concentration below the threshold was evaluated in a membrane bioreactor (MBR). (C) 2015 Elsevier B.V. All rights reserved.
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