嵌入式互锁膜接口使高稳定性和透水性膜蒸高度废水成为可能
Jiawei Cheng1, Peizhi Wang1, Xinyang Zhou1
1State Key Laboratory of Urban-rural Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, PR China.
Water research
|July 24, 2025
概括
一种针对表面活性剂量身定制的新型复合膜 (SPCM) 克服了用于高盐废水处理的膜蒸 (MD) 中的缩放和湿化问题. 这种强大的膜增强了水的透性和稳定性,为工业应用提供了有前途的解决方案.
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:
- 膜蒸 (MD) 在高盐废水处理中面临挑战,原因是膜缩放和湿.
- 传统的表面修改可以增加阻力和降低兼容性,阻碍膜性能和稳定性.
研究的目的:
- 开发一种强大的复合膜,耐缩和湿,用于高度废水处理.
- 为了提高膜蒸过程中的水透性和运行稳定性.
主要方法:
- 用表面活性剂量身定制的PVDF/PVA复合膜 (SPCM) 的制造,并嵌入一个互锁结构.
- 对表面活性剂对微观结构演变和膜性能影响的系统研究.
- 水运输机制的表征和在操作条件下的膜稳定性.
主要成果:
- 在高度条件下,SPCM表现出优异的抗和抗湿性能.
- 显著提高了水的透性 (~17%高于固有的基板透性).
- 嵌入式的表面层结构和优化的水凝网络促进了水的运输和蒸发.
结论:
- 开发的SPCM为高盐废水处理提供了卓越的机械稳定性和运行效率.
- 简化的准备过程和增强的性能为工业MD应用提供了巨大的潜力.
- 该研究阐明了通过结构设计和化学优化改善水流的机制.
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