论文部分内容阅读
探讨了离子交换膜的选择透过性机理和Donnan膜平衡时膜内离子分布状态,并通过实验证明无电场作用下,利用阳离子交换膜分离原水中离子,可以实现淡化脱盐。并认为膜内离子迁移过程中,膜内双电层作用达到平衡点,其在膜内离子迁移中不产生实质影响。离子反浓度迁移是否因为局部区域产生的电场推动,还需要深入研究。
The mechanism of selective permeation of ion exchange membrane and the ion distribution in the membrane of Donnan membrane were discussed. The ion exchange membrane was used to separate the ions in raw water through desalination. It is considered that during the process of ion transport in the membrane, the double-layer action in the membrane reaches an equilibrium point, which does not have a substantial impact on the ion transport within the membrane. Whether the ion concentration migration is driven by the electric field generated in the local area needs to be further studied.