In industries such as thermal power plants, petroleum and chemical industries, microelectronics, nuclear, food and pharmaceutical industries, all require water close to the quality of distilled water. With the rapid development of industrial technology, not only the amount of water is increasing rapidly, but also the requirements for water quality are constantly increasing.

So far, the ion exchange method is still the most important, most advanced and most economical water treatment technology. Whether it is softened water, desalination softened water, demineralized water, pure water, ultrapure water, it is mainly prepared by ion exchange method. Industrial water treatment is the largest user of ion exchange resins. Regardless of domestic or international, ion exchange resins consumed in industrial water treatment accounts for about 70% of the total output.