再生寿命终端膜,以提高可持续性和意外的性能
Chenxin Tian1, Jiansuxuan Chen1, Zhiwei Qiu1
1State Key Laboratory of Water Pollution Control and Green Resource Recycling, Shanghai Institute of Pollution Control and Ecological Security, School of Environmental Science and Engineering, Tongji University, Shanghai, China.
Nature communications
|March 10, 2026
概括
退役膜可以通过溶解和重新造来再生,其性能优于新膜. 这种可持续的方法提高了性能,降低了成本,并促进了膜技术中的循环经济原则.
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:
- 膜技术对于净水,气体分离和资源回收至关重要.
- 使用寿命终止 (EOL) 膜通常被丢弃,导致浪费和与可持续性目标相矛盾.
- 开发用于EOL膜再生的方法对于循环经济至关重要.
研究的目的:
- 提出一种用于再生EOL膜的新策略.
- 与EOL和原始膜相比,评估再生膜的性能.
- 评估再生过程的环境和经济效益.
主要方法:
- 在有机溶剂中溶解了EOL膜.
- 溶解的膜材料被重新造,形成新的膜.
- 性能是根据水的透率和污染物排放来评估的.
- 计算了二氧化碳eq排放量和成本降低.
主要成果:
- 再生膜的水透度比EOL膜高五倍以上.
- 在再生膜中改善了污染物排放.
- 再生膜的性能优于使用原始聚合物粉末制成的膜.
- 该战略导致碳排放量减少38.4%,成本降低75.7%.
结论:
- 通过溶解和再造进行膜再生是提高性能和可持续性的可行策略.
- 剩余的污染物和减少的纠密度有助于改善膜特性.
- 这种方法通过减少浪费和成本,促进了膜行业的循环经济.
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