电纺丝纳米纤维去除含油废水乳化油膜的制备

IF 1.2 Q3 MULTIDISCIPLINARY SCIENCES
Sura M. Alkarbouly, B. Waisi
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引用次数: 5

摘要

电纺丝纳米纤维膜在水过滤方面的应用引起了人们极大的兴趣。本文报道了静电纺聚丙烯腈基非织造纳米纤维膜的制备和表征。然后,利用交叉流过滤系统对该膜去除乳化油的性能和防污性能进行了评价。在N, N-二甲基甲酰胺(DMF)溶剂中,用不同浓度的聚丙烯腈(PAN)(8、11和14 wt. %)制备膜,得到不同的平均纤维尺寸、孔隙度、接触角、渗透率、拒油性和防污性能。对除油前后制备膜的表面形貌分析表明,除油前后制备膜的纤维尺寸增大,结垢量减小,渗透通量增大。另一方面,纤维粒度的减小会导致吸油率的增加。结果表明,11wt . %聚丙烯腈基非织造纳米纤维膜具有良好的孔隙率、透气性和排油性能,是去除乳化油的最佳膜。此外,采用温蒸馏水反冲洗技术对污染的非织造纳米纤维膜进行清洗,可有效保持膜的透气性和排油性7次。实验结果表明,制备的纳米纤维膜具有良好的油水分离性能,截油率为92.5%,渗透通量为120 LMH。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fabrication of Electrospun Nanofibers Membrane for Emulsified Oil Removal from Oily Wastewater
: The electrospun nanofibers membranes have gained considerable interest in water filtration applications. In this work, the fabrication and characterization of the electrospun polyacrylonitrile-based nonwoven nanofibers membrane are reported. Then, the membrane's performance and antifouling properties were evaluated in removing emulsified oil using a cross flow filtration system. The membranes were fabricated with different polyacrylonitrile (PAN) concentrations (8, 11, and 14 wt. %) in N, N-Dimethylformamide (DMF) solvent resulted in various average fiber sizes, porosity, contact angle, permeability, oil rejection, and antifouling properties. Analyses of surface morphology of the fabricated membranes before and after oil removal revealed increasing the fiber size, decreasing the fouling amount, and increasing the permeate flux. On the other hand, decreasing the fiber size resulting in increases the oil rejection. It was observed that 11 wt. % PAN based nonwoven nanofiber membrane was the optimum membrane for emulsified oil removal due to its good porosity, permeability with good oil rejection. In addition, fouled nonwoven nanofiber membrane cleaning was done by backwashing technique using warm distilled water which was effective in retaining the membrane permeability and oil rejection for 7 times. The obtained results confirmed an efficient performance of the fabricated nanofibers membrane for oil-water separation with oil rejection percentage of 92.5% and a permeate flux of 120 LMH.
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来源期刊
Baghdad Science Journal
Baghdad Science Journal MULTIDISCIPLINARY SCIENCES-
CiteScore
2.00
自引率
50.00%
发文量
102
审稿时长
24 weeks
期刊介绍: The journal publishes academic and applied papers dealing with recent topics and scientific concepts. Papers considered for publication in biology, chemistry, computer sciences, physics, and mathematics. Accepted papers will be freely downloaded by professors, researchers, instructors, students, and interested workers. ( Open Access) Published Papers are registered and indexed in the universal libraries.
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