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首页> 外文期刊>Journal of Cleaner Production >Modified cellulose membrane with good durability for effective oil-in- water emulsion treatment
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Modified cellulose membrane with good durability for effective oil-in- water emulsion treatment

机译：改性纤维素膜具有良好的耐久性，可有效进行水包油型乳化液的处理

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摘要

Industrial spilled oil and oily wastewater have caused serious environmental pollution and energy dissipation. Hence, a robust cellulose-based filter paper-polyvinyl alcohol (cellulose-PVA) membrane for efficient oil-in-water emulsion separation was fabricated by a universal method of hydroxyl oxidation for any substrate containing hydroxyl groups that was cost-effective and easy to scale up. The resulting membrane exhibited superhydrophilicity, superoleophilicity in air, and stable superoleophobicity under various pH value solutions with contact angles exceeding 150 degrees. The cellulose-PVA membrane can dispose of many types of surfactant-stabilized and different oil droplet sized oil-in-water emulsions with 98.75 % efficiency driven only by gravity without consideration the secondary processing problem. Furthermore, sand paper abrasion tests, tape peeling tests and chemical corrosion resistance tests were executed, indicating the excellent mechanical stability and superior durability of the cellulose-PVA membrane. These results suggest that it is a prospective and competitive candidate for industrial oil-in-water emulsion treatment. (C) 2018 Elsevier Ltd. All rights reserved.
机译：工业泄漏的石油和含油废水已造成严重的环境污染和能源消耗。因此，通过通用的羟基氧化方法对任何含羟基的底物进行了成本有效且易于分离的耐用的纤维素基滤纸-聚乙烯醇（纤维素-PVA）膜，该膜可通过有效的水氧化油包水乳状液分离方法制成。放大。所得的膜在接触角超过150度的各种pH值溶液中显示出超亲水性，空气中的超亲油性和稳定的超疏油性。纤维素-PVA膜可以处理多种类型的表面活性剂稳定的和不同的油滴大小的水包油型乳液，仅靠重力驱动即可达到98.75％的效率，而无需考虑二次加工问题。此外，还进行了砂纸磨损测试，胶带剥离测试和耐化学腐蚀测试，表明纤维素-PVA膜具有出色的机械稳定性和优异的耐久性。这些结果表明，它是工业水包油乳液处理的潜在和竞争性候选者。 （C）2018 Elsevier Ltd.保留所有权利。

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