The working process and principle of softened water treatment equipment-Ocpuritech-img

The working process and principle of softened water treatment equipment

by:Ocpuritech     2021-03-18
Workflow softened water treatment equipment and principle author of the article: softened water treatment equipment is to reduce the hardness of the water, get rid of water calcium and magnesium ions, etc., to the role of sterilization, get rid of dirt. The softened water treatment equipment cannot reduce the salt content in the water during its operation, and it has a wide range of applications in industrial production. The working principle of softened water treatment equipment. Since the hardness of water is mainly formed and expressed by calcium and magnesium, cation exchange resin (water softener) is generally used to replace Ca2+ and Mg2+ (the main components that form scale) in the water. With the increase of Ca2+ and Mg2+, the efficiency of resin to remove Ca2+ and Mg2+ gradually decreases. When the resin absorbs a certain amount of calcium and magnesium ions, it must be regenerated. The regeneration process is to wash the resin layer with salt water in the salt box to replace the hardness ions on the resin, and then discharge the resin out of the tank with the regeneration waste liquid. The soft exchange function has been restored. Because the hardness of water is mainly formed by calcium and magnesium and is represented by calcium and magnesium and the principle of sodium ion exchange softening treatment is to pass the raw water through sodium-type cation exchange resin, so that the hardness components of Ca2+, Mg2+ and The Na+ in the resin phase exchanges, thereby adsorbing Ca2+ and Mg2+ in the water, so that the water is softened.  Softened water treatment equipment work process   The softened water equipment has 5 processes, namely water production, backwashing, salt absorption (regeneration), slow flushing (replacement) and fast flushing these 5 steps. Most of the softened water treatment equipment processes are the same, the difference is that some equipment adds some additional processes.   There is no need to introduce the water production.  Backwash: After the equipment has been working for a period of time, the resin will intercept many impurities. After these impurities are removed, the ion exchange resin can be exposed, so that the quality of the regenerated water can be guaranteed. Salt absorption (regeneration): the process of injecting salt water into the resin tank. The traditional equipment uses a salt pump to inject the salt water, and the fully automatic equipment uses a dedicated built-in ejector to suck in the salt water (as long as the inlet water has a certain pressure) . In the actual working process, the regeneration effect of salt water flowing through the resin at a slower speed is better than that of simply soaking the resin with salt water. Therefore, the softened water equipment is regenerated by the method of slowly flowing salt water through the resin. This process generally requires 30 About minutes, the actual time is affected by the amount of salt used. Slow flushing (replacement): After the salt water flows through the resin, the process of slowly flushing all the salt in the resin with raw water at the same flow rate is called slow flushing, because there are still a large number of functional groups in the flushing process. Calcium and magnesium ions are exchanged by sodium ions. According to actual experience, this process is the main process of regeneration, so many people call this process replacement. This process is generally the same as the salt absorption time, which is about 30 minutes.  Quick rinse: In order to thoroughly rinse the remaining salt, the resin should be rinsed with raw water at a flow rate close to that of the actual work. The final effluent of this process should be soft water that meets the standard. Under normal circumstances, the fast flushing process is 5-15 minutes. The working requirements of softened water treatment equipment: inlet water pressure: 0.18-0.6Mpa   working temperature: 1-55℃ source water hardness: <8mmol/L   operation mode: automatic/manual water outlet hardness: ≤0.03mmol/L   regeneration agent: NaCL regeneration mode: Co-current/counter-current exchanger: 001*7 strong acid ion exchange resin Control mode: time/flow Working power supply: 220V/50Hz
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