How to extend the service life of resin in stainless steel purified water equipment-Ocpuritech-img

How to extend the service life of resin in stainless steel purified water equipment?

by:Ocpuritech     2021-04-04
How to extend the service life of resin in stainless steel purified water equipment? Author: Many of raw water often contains a lot of ions, and some harmful ions, or some need to be cleared of ions, it is generally water equipment will be used in the ion exchange resin to remove these ions, ion exchange resins can effectively It absorbs ions in water and releases ions that are harmless to the human body. The water produced by food-grade softening resin can be directly consumed by the human body and is harmless to the human body. Therefore, resin is often used in stainless steel purified water equipment. However, as the equipment is used, the ion exchange resin will gradually lose its ion exchange capacity. In other words, the service life of the ion exchange resin is limited. How to extend the life of the resin in the stainless steel purified water equipment? Affect the use of ion exchange resin There are a large number of reasons for the life, one is the oxidation of the resin, and the other is the contamination of the resin. Resin oxidation is mainly due to oxidants in water, such as residual chlorine and nitrate. The direct consequence of resin oxidation is that the resin skeleton is broken, the color becomes lighter and the volume becomes larger, and the exchange capacity is lost. Countermeasures: Installing an activated carbon filter before the stainless steel purified water equipment can effectively reduce the content of oxidants such as residual chlorine in the water, thereby prolonging the service life of the resin. It is worth pointing out that in addition to adsorption (data shows that every gram of activated carbon can absorb 6.5mg of chlorine), the principle of activated carbon to remove residual chlorine is that a chemical reaction is also carried out on the surface of activated carbon: C-+HOCl→CO-+HCl. Because the activated carbon filter is simple, economical and effective for dechlorination, it is widely used. The main causes of resin pollution are: iron, aluminum, oil, calcium, and silicon. Among them, iron pollution is the main hazard of softening resin, and the color of iron-contaminated resin becomes darker and black. The inside and surface of the resin will be filled and covered with oxidized trivalent iron, so that the softened resin loses its exchange capacity. The oil-contaminated resin surface is wrapped with an oil film, and the color is brown-black. After the resin is contaminated with oil, the exchange capacity of the resin will be reduced. Countermeasures: For raw water with high iron content, oxidizing and filtering the iron before the iron enters the equipment resin is a common method to reduce the iron pollution of the resin. Aeration oxidation and manganese sand oxidation filtering or adding water treatment chemicals can be used. For the resin contaminated by oil, use alkali or petroleum ether to clean the resin. Through the above introduction, I believe everyone has mastered the relevant knowledge. According to the above method, the service life of the resin is prolonged and the company's cost is reduced.
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