相对于油滴大小的图案尺寸对纳滤中油污的影响

IF 8.4 1区 工程技术 Q1 ENGINEERING, CHEMICAL Journal of Membrane Science Pub Date : 2024-10-28 DOI:10.1016/j.memsci.2024.123457
Lauren M. Ward, Catherine C. Martin, Steven T. Weinman
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引用次数: 0

摘要

膜污垢是许多膜应用中的一个主要问题。有许多方法试图减轻膜污垢,其中一种方法是膜表面图案化。然而,目前还不清楚污物大小与图案大小的比例如何影响膜污垢。在这项研究中,我们研究了聚酰胺纳滤膜上恒定的污物尺寸,同时改变膜表面的图案尺寸,使其小于(300-nm)、等于(10-μm)和大于(50-μm)污物(10-μm)。这些膜与商用纳滤膜和平面合成膜对照进行了比较。在一个死端池中,用水、2000 ppm Na2SO4 和三个周期的正十二烷(作为油)盐水溶液对这些膜进行了测试,以评估每种聚酰胺膜的防污能力和通量恢复能力。从污垢实验中可以确定,所有图案尺寸都不会对通量恢复率产生明显影响,但小于和大于图案会使聚酰胺膜上的污垢率略有下降。
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Pattern size relative to oil droplet size effect on oil fouling in nanofiltration
Membrane fouling is a major issue in many membrane applications. There are numerous methods used in attempt to mitigate membrane fouling, with one method being membrane surface patterning. However, it is still unclear how the ratio of foulant size to pattern size affects membrane fouling. In this study, we investigated constant foulant size while varying the pattern size on the membrane surface to be smaller than (300-nm), equal to (10-μm), and larger than (50-μm) the foulant (10-μm) on polyamide nanofiltration membranes. These membranes were compared to a commercial nanofiltration membrane and a control flat synthesized membrane. The membranes were tested with water, 2000 ppm Na2SO4, and three cycles of a n-dodecane (as oil) brine solution in a dead-end cell to assess the fouling resistance and flux recovery ability of each polyamide membrane type. From the fouling experiments, it was determined that none of the pattern sizes significantly affect the flux recovery ratio, but smaller than and larger than patterns decreased the fouling rate on the polyamide membranes by a small margin.
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来源期刊
Journal of Membrane Science
Journal of Membrane Science 工程技术-高分子科学
CiteScore
17.10
自引率
17.90%
发文量
1031
审稿时长
2.5 months
期刊介绍: The Journal of Membrane Science is a publication that focuses on membrane systems and is aimed at academic and industrial chemists, chemical engineers, materials scientists, and membranologists. It publishes original research and reviews on various aspects of membrane transport, membrane formation/structure, fouling, module/process design, and processes/applications. The journal primarily focuses on the structure, function, and performance of non-biological membranes but also includes papers that relate to biological membranes. The Journal of Membrane Science publishes Full Text Papers, State-of-the-Art Reviews, Letters to the Editor, and Perspectives.
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