Improvement of Antifouling Characteristics in a Bioreactor of Polypropylene Microporous Membrane by the Adsorption of Tween 20

The use of Tween 20 to modify polypropylene hollow fiber microporous membrane (PPHFMM) surface to improve fouling-resistance property in a membrane bioreactor (MBR) was studied. Attenuated total reflection-Fourier transform infrared spectroscopy (ATR/FT-IR) and field emission scanning electron micro...

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Published inJournal of environmental sciences (China) Vol. 19; no. 2; p. 1461
Main Authors Ya-Jie, Xie, Hai-Yin, Yu, Shu-Yuan, Wang, Zhi-Kang, Xu
Format Journal Article
LanguageEnglish
Published 01.01.2007
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Summary:The use of Tween 20 to modify polypropylene hollow fiber microporous membrane (PPHFMM) surface to improve fouling-resistance property in a membrane bioreactor (MBR) was studied. Attenuated total reflection-Fourier transform infrared spectroscopy (ATR/FT-IR) and field emission scanning electron microscope (FE-SEM) were used to characterize the chemical and morphological changes on the membrane surfaces. Tween 20 adsorbed onto hydrophobic polypropylene hollow fiber and flat microporous membrane could not only enhance the hydrophilic action but also improve the antifouling ability in MBR. Based on the measurements for water contact angle and water permeation flux, it was found that the membrane adsorption Tween 20 near the monolayer state showed higher remaining flux and stronger antifouling ability than unmodified membrane.
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ISSN:1001-0742