Separation of used automobile oil/water mixture by Nylon 6/ZnO nanoparticles electrospun membrane
The separation of water from oily wastewater by using membranes is a big challenge because of serious membrane fouling and low separation efficiency. So, for the first time, Nylon 6 (N6) membranes blended with ZnO nanoparticles with a N6 support layer by the electrospinning technique were fabricated...
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| Những tác giả chính: | , , , , , |
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| Định dạng: | Journal article |
| Ngôn ngữ: | English |
| Được phát hành: |
2023
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| Những chủ đề: | |
| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/handle/123456789/2982 https://www.sciencedirect.com/science/article/pii/S1383586622011340 |
| Các nhãn: |
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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| Tóm tắt: | The separation of water from oily wastewater by using membranes is a big challenge because of serious membrane fouling and low separation efficiency. So, for the first time, Nylon 6 (N6) membranes blended with ZnO nanoparticles with a N6 support layer by the electrospinning technique were fabricated, where the N6 layer enhanced the mechanical strength and ZnO NPs formed a strong barrier on the N6 membrane to reduce membrane pore-clogging. The micron pore size membranes created by hydrophilic ZnO NPs on electrospun Nylon 6 fiber–matrix structures contributed to the hydrophilicity and fouling resistance of the membranes. The optimal quantities of ZnO NPs and N6 in the electrospun membranes were 2.5 and 40 w.t%, respectively, for achieving the desired specific flux of 215.14 LMH/bar over 3 h when using a 0.1% v/v oil/water influent. Up to 90% of oil, chemical oxygen demand, turbidity, total dissolved solids, and total suspended solids were removed to fulfill discharge requirements. The presence of ZnO NPs in the N6 membrane also exhibited excellent anti-fouling properties with the flux recovery ratio of 52.5 % and water flux of 405.6 LMH/bar, which was much better than those of a pristine N6 membrane, indicating the microfiltration membranes developed in this study were reasonably resistant to fouling to ensure high effluent water quality and the fabricated N6/ZnO NPs membrane is feasible in treating oil-containing wastewater. |
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