通过液体注入膜进行乳液分离的三维成像,使用共聚焦激光扫描显微镜.
Chen Song1, Gregory C Rutledge1
1Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.
Langmuir : the ACS journal of surfaces and colloids
|August 4, 2023
概括
液体注入膜 (LIM) 显示出通过形成油通道从水中去除乳化油的潜力. 道形成的动态,受油度和运行条件的影响,决定了透流和抗污染性质.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 由于稳定的小水滴,从水中去除乳化油具有挑战性.
- 膜污染显著降低了传统膜处理中的容量.
- 液体注入膜 (LIMs) 为污染提供了一个潜在的解决方案,但在透流量方面存在局限性.
研究的目的:
- 为了研究LIMs中石油在水中乳液去除的传输机制.
- 了解油滴凝聚和道形成在LIM性能中的作用.
- 识别影响LIMs透流和防行为的因素.
主要方法:
- 使用共聚焦激光扫描显微镜 (CLSM) 进行3D成像.
- 在LIM启动和运行期间重建事件.
- 采用图像分析来量化道形成,并与透流量相关联.
主要成果:
- 观察到LIM表面的油滴凝聚和膜内的油通道形成.
- 发现石油通道的速率和数量决定了透流.
- 证明了料油度,注入液体粘度和工作压力对道形成动态的影响.
结论:
- 道形成动态对于控制LIMs中的透流量至关重要.
- 优化操作条件和材料性能可以提高LIM去除油的性能.
- 输入液体与孔壁的高亲和力对于抗物质至关重要.
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