Polishing mixed bed equipment

Equipment Overview:
Mixed bed is the abbreviation for mixed ion exchange column, which is a device designed for ion exchange technology. It is to mix and load a certain proportion of cation and anion exchange resins into the same exchange device to exchange and remove ions from the fluid. Due to the higher specific gravity of the cation resin compared to the anion resin, the anion resin is on top and the cation resin is on the bottom in the mixed bed. The general ratio of resin filling for yang and yin is 1:2, and there are also filling ratios of 1:1.5, which can be selected according to different resins. Mixed beds are also divided into in vivo synchronous regeneration mixed beds and in vitro regeneration mixed beds. The mainstream adopts synchronous regeneration mixed bed, which operates and the entire regeneration process is carried out inside the mixed bed. During regeneration, the resin does not move out of the equipment, and the cation and anion resins are regenerated simultaneously, so fewer auxiliary equipment are required and the operation is simple. Mixed beds are mainly used to reduce the hardness, alkalinity, and anions and cations in water, making it softened or deionized water.

Equipment features:
1. The effluent quality is excellent, and the pH value of the effluent is close to neutral.
2. The effluent quality is stable, and short-term changes in operating conditions (such as inlet water quality or composition, operating flow rate, etc.) have little impact on the effluent quality of the mixed bed.
3. Intermittent operation has little impact on the effluent quality, and the time required to restore the water quality to before shutdown is relatively short.
4. The recovery rate reaches 100%

Application scope:
Mixed beds are generally placed after electrodialysis or reverse osmosis devices (or directly applied to water with lower salt content), and further desalination of water can produce higher purity water. They are widely used in industries such as electronics, chemical, pharmaceutical, atomic energy, and power.