基于Nernst-Planck方程建立了EDI过程的传质动力学微分方程.根据此传质模型方程获知,EDI过程中在阴阳离子交换膜/树脂表面与溶液接触的界面层中发生的水解离的差异性,是在于离子交换界面电势梯度的差异,而这种差异又与膜和树脂的结构、性能以及阴阳离子在水溶液中的迁移数的差异有关.
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