高级向前透纤维素膜用于淡化水和盐水度
Rania Sabry1, Hanaa M Ali2, Sahar S Ali3
1Chemical Engineering Department, Engineering and Renewable Energy Research Institute, National Research Centre, 33 El-Bohouth St. (Former El-Tahrir St.), Dokki, PO Box 12622, Giza, Egypt. rania_nrc@hotmail.com.
Scientific reports
|May 14, 2025
概括
研究人员开发了一种新的纤维素酸和聚硫膜,用于前透透 (FO) 淡化和盐水度. 这种高性能膜实现了显著的水流量,为应对工业废水和盐水处理挑战提供了有前途的解决方案.
科学领域:
- 膜科学与技术 膜科学与技术
- 环境工程 环境工程
- 化学工程是化学工程的重要组成部分.
背景情况:
- 盐水是海水淡化过程的副产品,由于盐和污染物度很高,这给废弃物带来了重大挑战.
- 传统的盐水缩方法耗费大量能源.
- 向前透 (FO) 正在成为盐水管理的节能替代方案.
研究的目的:
- 使用酸纤维素 (CA) 与多硫 (PS) 混合制造高性能非织造前透膜 (FO).
- 为了评估膜在盐水淡化和盐水度应用中的性能.
- 为了研究不同吸水溶液对膜性能的影响.
主要方法:
- 使用纤维素 (CA) 和聚硫 (PS) 通过相反技术制造非织造FO膜.
- 测试膜性能,用于用不同NaCl度的盐水淡化.
- 评估盐水度使用二碳酸 (NH4HCO3) 和氧化/二碳酸 (NH4OH/NH4HCO3) 混合物作为抽取溶液.
主要成果:
- 在盐水淡化过程中,使用2M NaCl作为对蒸水的吸水溶液,获得了150 LMH的高水流量.
- 对于盐水度,改造的纤维素FO膜在使用NH4OH/NH4HCO3的1:1混合物作为吸水溶液时,显示出最大的水流量为113 LMH.
结论:
- 制造的CA/PS无膜在海水淡化和盐水度方面表现出色.
- 开发的FO膜为工业过程中的盐水管理提供了可行和节能的解决方案.
- 进一步优化吸水解决方案和操作条件可以提高盐水管理系统的效率.
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