基于甘的超性和水下超性膜,用于高效的油在水中乳液分离
Yanhua Liu1, Tianbin Bai1, Shixing Zhao1
1School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
Journal of hazardous materials
|September 18, 2023
概括
这项研究引入了一种基于甘的新型膜,用于高效的油水乳液分离. 环保的生物质膜表现出超性和水下超性,实现了高分离效率和废水处理的流量.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 工业和家庭油水乳液造成的污染日益增加,需要先进的分离材料.
- 像草这样的农业废物有可能成为功能性膜的可持续前体.
- 现有的分离方法往往缺乏效率,成本效益或环保性.
研究的目的:
- 开发一种生态,低成本和高性能膜,以有效地分离油水乳液.
- 利用甘废料作为膜制造的可持续原料.
- 评估新型膜的分离性能,耐用性和可回收性.
主要方法:
- 使用一种简单,环保的方法,包括化学处理和冷干燥,以制备基于甘的膜.
- 膜的表面特性被描述,包括超性 (水接触角度为0°) 和水下超性 (油接触角度>150°).
- 分离效率,流量,耐用性 (紫外线,酸/,磨损) 和可回收性被评估使用各种油在水乳液.
主要成果:
- 准备的甘基 (SHS) 膜表现出超性和水下超性.
- 该SHS膜表现出优异的耐久性对抗紫外线,腐蚀剂和机械应力.
- 高分离效率 (>99%) 和流量 (891 L m−2 h−1 bar−1) 在各种油在水乳液中实现.
- 膜在10个连续的分离周期中保持了性能,并显示出作为吸水剂的潜力.
结论:
- 新型SHS膜是一种有前途,实用和可持续的材料,用于处理污染了油水乳液的废水.
- 它独特的湿透性和坚固的性能使其适合要求苛刻的环境应用.
- 这种方法为使用农业废物进行高效的乳化物分离提供了一个环保的替代方案.
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