Mixed bed is short for mixed ion exchange column, which is designed for ion exchange technology. The so-called mixed bed, is a certain proportion of cation and anion exchange resin mixed in the same exchange device, the fluid ion exchange, removal. Since the specific gravity of the cation resin is larger than that of the anion resin, the anion resin is on top and the cation resin is on the bottom in the mixed bed. Generally, the ratio of the positive and negative resins is 1:2, and there is also a loading ratio of 1:1.5, which can be selected according to the discretion of different resins. Mixed bed is also divided into in vivo synchronous regeneration type mixed bed and in vitro regeneration type mixed bed. Synchronous regeneration type mixed bed in the operation and the entire regeneration process are carried out in the mixed bed, regeneration of the resin does not move out of the equipment outside, and the anode and cathode resin regeneration at the same time, therefore, the need for fewer ancillary equipment, easy to operate.
Simply put, the mixed bed is an ultrapure water equipment to produce ultrapure water in a way that is now more advanced is the EDI technology.
Mixed bed is a way to make ultrapure water in ultrapure water equipment.