碳黑诱导化使垃圾填埋污水处理的强大的膜蒸成为可能
Fangshu Qu1, Zhuoran Yi2, Qiaoyun Lai2
1Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong 510006, PR China; School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, PR China.
Water research
|July 2, 2025
概括
一种新的聚乙烯化物 (PVDF) 膜,经过碳黑和化修改,有效地对抗膜蒸 (MD) 中的湿和污染. 这种强大的膜非常适合处理高盐和复杂的废水,确保稳定的性能.
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:
- 膜浸湿和污染显著阻碍了膜蒸 (MD) 的效率,特别是在高盐废水处理中.
- 开发强大的防湿膜对于先进的水净化和资源回收至关重要.
研究的目的:
- 为膜蒸设计一种基于低表面能量聚乙烯化物 (PVDF) 的膜,具有增强的防湿和防性质.
- 为了研究碳黑诱导化使用1H,1H,2H,2H-perfluorodecyltrichlorosilane (FDTS) 进行膜修饰的疗效.
主要方法:
- 碳黑纳米粒子通过真空过沉积在PVDF膜上.
- 以碳黑装饰的膜随后使用FDTS进行化,以创建一个强大的,低表面能量层.
- 评估了表面性能 (表面能量,孔径,接触角度) 和膜蒸中的性能.
主要成果:
- 经过修改的PVDF膜表现出超低的表面能量 (2.03 mN/m) 和高的疏水性 (水接触角度为144°).
- 与未经修改的膜相比,它表现出优越的水蒸气传导和显著改善的防湿性能.
- 稳定的海水淡化流量 (>7.0 L/m2·h) 和近乎完美的盐排斥 (>99%) 即使使用高度缩和污染的料溶液也可以实现.
结论:
- 碳黑诱导化是一种可扩展和有效的策略,用于创建强大的,防湿的MD膜.
- 工程膜显示出特殊的性能和耐用性,用于处理具有挑战性的废水,如垃圾填埋场液.
- 这项技术促进了高度和复杂的工业废水的高效水回收.
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