Softening Systems

(0 reviews)

Get Price

(45) Views

(0) Contacts

Contact Company

Shaanxi Di Ao Environmental Protection Group Co., Ltd.

Shaanxi, China

(258) Views

(0) Contacts

Description
Product Reviews

When raw water containing hardness ions flows through the resin layer in the exchanger, the calcium and magnesium ions in the water are replaced by sodium ions adsorbed in the resin. Water is softened water that has had its hardness removed. Water hardness is primarily created and represented by calcium and magnesium, hence cation exchange resin (water softener) is commonly used to replace Ca2+ and Mg2+ (the major components of scale development) in the water. As the concentration of Ca2+ and Mg2+ in the resin increased, the effectiveness of Ca2+ and Mg2+ removal decreased.
Once the resin has absorbed a specific number of calcium and magnesium ions, it must be regenerated. The regeneration procedure involves rinsing the resin layer with salt water in the salt tank to replace the resin's hardness ions. The softening swap functionality has been reinstated. Since the hardness of water is primarily formed by calcium and magnesium, the principle of sodium ion exchange softening treatment is to pass the raw water through the sodium cation exchange resin, where the hardness components Ca2+, Mg2+ in the water and the Na+ in the resin are exchanged, thereby adsorbing Ca2+ and Mg2+ in the water and softening the water.

For example, the sodium resin is represented by RNA, and its exchange procedure is as follows:

2RNa + Ca2+ equals R2Ca + 2Na+
2RNa + Mg2+ equals R2Mg + 2Na+

That is, after passing through the sodium ion exchanger, the water's Ca+ and Mg+ are replaced with Na+. The control valve's general operation procedure includes operation, backwashing, salt absorption, sluggish washing, water replenishment in the salt tank, and positive washing.
Operating procedure
There are five processes:

Labor (also known as water production; see below), backwashing, salt absorption (regeneration), slow flushing (replacement), and fast flushing. All of the processes of different softening water equipment are very similar, however owing to differences in the actual process or the requirement for control, some additional processes may exist. Any water softening system based on sodium ion exchange is designed around these five processes.
Backwashing:

After a while of operation, the equipment will collect a large amount of dirt from the raw water on the upper part of the resin. After these dirts have been cleaned, the ion exchange resin can be fully exposed, ensuring the regeneration action. The backwash technique involves washing water in from the bottom of the resin and out from the top, allowing dirt captured by the top to be cleaned away. This process typically takes 5-15 minutes. Salt absorption (regeneration) is the process of infusing brine into a resin tank. Traditional equipment employs a salt pump to inject the brine, whereas fully automatic equipment uses a specific built-in injector to inhale the brine (as long as the water is under pressure). In the real working process, the regeneration impact of brine running through the resin at a slower pace is greater than that of merely soaking the resin in brine, thus the softening water equipment is regenerated by the slow flow of brine through the resin. This process typically takes 30 minutes, although the actual time is determined by the amount of salt used.
Slow flushing (replacement):

After the brine has passed through the resin, the process of slowly flushing all of the salts in the resin with raw water at the same flow rate is known as slow flushing, because this flushing process involves a significant number of functional groups. Calcium and magnesium ions are exchanged for sodium ions. According to actual experience, this is the primary regeneration process, hence it is commonly referred to as replacement. This process is often the same as the salt absorption time, which is approximately 30 minutes.
Quick rinse:

To properly remove the residual salt, rinse the resin with raw water at a flow rate comparable to the real work. This procedure should provide soft water that meets the criteria. Under typical circumstances, the quick flushing process takes 5-15 minutes.