CDI的概述及原理

CDI的概述：

CDI是CEDI（Continuous electroedionization）的简称，意为“连续电去离子”，是一种新型的超纯水制备技术，放在反渗透系统后深度除盐，可制取15-18MΩ · cm超纯水。

CDI is an abbreviation of CEDI (Continuous electroedionization), which is a novel super-purified water preparing technology. After the CDI device is arranged in the reverse osmosis system and the deep desalting is carried out, the super-purified water of 15-18MΩ · cm can be prepared.

CDI的原理：

CDI装置是将离子交换树脂充夹在阴/阳离子交换膜之间形成CDI单元，利用树脂制备高纯水，利用水电解产生H⁺、OH^-离子在膜堆内再生失效的树脂。

CDI device is characterized in that the ion exchanging resin is filled between anion exchanging membrane and the cation exchanging membrance so as to form a CDI unit, the highly purified water is prepared by the resin, the ions H⁺ and OH^- generated by water electrolysis are utilized so as to re-generate failed resins in membrane stacks.