Reasons for maintaining boiler water softening equipment

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This post was last edited by Yamei on 2016-5-15 08:37. In our daily lives, boiler water softening equipment is widely used; this type of equipment is primarily used to remove impurities present in the raw water used in the chemical industry. Boiler water softening equipment also plays an important role in the softeners themselves. Next, let’s briefly explain why it is necessary to carry out maintenance on boiler water softening systems on a regular basis. Reasons for maintaining boiler water softening equipment. 　　Boiler water softening equipment generally uses sodium-type cation exchange resin, which is regenerated with table salt after becoming saturated with ions. After several years of use, the resin becomes increasingly damaged and gradually loses its softening ability. Especially when the activated carbon filter becomes saturated with adsorbents and the activated carbon is not replaced in a timely manner, iron, organic substances, and residual chlorine present in the raw water will enter the water softener, poisoning the resin. Once the resin is poisoned, it cannot be restored to its active state through regeneration. 　　Reverse osmosis is the core component of the equipment; raw water that has been pre-treated and meets the requirements of the reverse osmosis membrane becomes pure water after passing through the reverse osmosis filtration process. Therefore, proper maintenance of the reverse osmosis system is key to ensuring the quality of the pure water. During operation, the salt concentration on the surface of the reverse osmosis membrane is higher than that in the main fluid; this phenomenon is known as concentration polarization. The consequence of concentration polarization is the precipitation of certain salts on the membrane surface, which blocks the water production channels of the reverse osmosis membrane and reduces its water production capacity. When the organic substances in the feed water are not continuously washed away or removed on a regular basis, they accumulate on the surface of the membrane. In particular, reverse osmosis membranes with charged surfaces attract these charged organic substances and retain them on their surface. The deposition of organic substances on the membrane surface causes more damage to the membrane than the precipitation of salts on that surface, and sometimes this damage is irreversible. The concentrations of organic matter and various salts on the membrane surface are much higher than those in the main water flow, providing abundant nutrients for bacterial growth. Large amounts of microbial biofilms not only block the water production channels but also, since the reverse osmosis membrane itself is an organic material, it can be broken down by microorganisms, causing irreversible damage. Oxidizing substances in water, such as residual chlorine, accumulate on the surface of the membrane. When this accumulation reaches a certain level, exceeding the concentration that the membrane can tolerate, the reverse osmosis membrane will be oxidized and degraded.