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[Chemical Knowledge]：The principle of ion exchange resin regeneration-extend the service life and protect the environment

Read： 232 Time：13months ago Source：Transform the World with Simplicity

Ion exchange resin is a widely used material for separation and purification in many fields such as production, manufacturing, treatment and water treatment. However, long-term use, multiple regeneration cycles, and the waste process will cause the resin to solidify and fail. For this reason, regeneration of an ion exchange resin is one of techniques for realizing resource saving and environmental protection.

So, ion exchange resin regeneration is how to achieve it?

its basic principle is based on the resin in the presence of anion and cation exchange adsorption characteristics, the use of hydrochloric acid, sodium hydroxide, sodium hydrochloride, sodium acetate and other solutions for elution, so that the adsorption of ions on the surface of the resin is dissolved and released. In this process, the adhesion of the resin will become weaker, and it can be cleaned by rinsing. After that, new ions can be re-adsorbed in the resin to complete the regeneration.

, it should be noted that according to different environmental protection conditions, the method of resin regeneration is also different. For example, in an organic solution exchange process, elements are desorbed from a resin by a thermal oxidation method or a catalytic oxidation method, and wastewater is treated by a countercurrent oxidation method or the like. The emergence of these regeneration methods will protect the ion exchange resin from further prolonging its service life. The regeneration of ion exchange resins also has the benefit of protection of the environment

resource savings and reduced operating costs.

because ion exchange resin involves water treatment, electronic manufacturing and other fields will be produced with a large amount of wastewater, high-quality resin regeneration method can effectively reduce wastewater emissions, to achieve environmental protection purposes. Moreover, in the regeneration process, only need to use the solution for washing, does not produce any hazardous substances and waste, more to make the best use.

In short, understanding the principle of ion exchange resin regeneration has a positive effect on protecting the environment and prolonging the service life of the resin. In the actual production and consumption, we should choose the appropriate ion exchange resin regeneration method according to their own needs. In the context of respecting the environment and reducing costs, to achieve the goal of sustainable development.

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