Pure water treatment equipment includes sewage treatment machinery, sand removal and mud scraping equipment, aeration and mixing equipment, dosing and disinfection equipment, concentration and dehydration equipment, oxidation and desalination equipment, etc. In urban sewage treatment, water treatment equipment accounts for about 10% of the total construction investment, and in industrial wastewater treatment, it accounts for 30% or more of the total investment. It is a key equipment in the water industry.

The water pollution control industry in China began in the early 1970s and has now reached a corresponding scale. However, overall, China's water pollution control industry is still in its early stages of development and cannot meet the needs of sustained and coordinated economic and environmental development. However, China has established a complete set of guidelines, policies, regulations, standards, and systems in the field of water pollution, while continuously increasing investment in improving water environment quality, thus providing a large market for the industrialization of water treatment technology and equipment.

In recent years, pure water treatment equipment manufacturers have been focusing on the development of water industry technology. Starting from analyzing the current research status, urgent water industry development, and industrial wastewater treatment problems in China, combined with the characteristics of water industry and its development, they have conducted laboratory and on-site research and development, technology integration research, and equipment development and production by summarizing and analyzing existing achievements. The process technology and equipment technology of pure water equipment manufacturers are closely combined with market demand, with a focus on solving technical difficulties in engineering and productization processes. There have been new advances in theory and mechanism, and significant changes have been made in the technical aspects of pure water equipment manufacturers. At the same time, they have also begun to solve technical difficulties and problems in operation management and control, proposing a large number of processes, equipment, and key technologies. Technical parameters and the establishment of demonstration projects reflect the wide applicability of technology, high-tech content, engineering and industrial development. The development of water industry technology has made progress in China's water and sewage treatment technology and equipment, narrowing the gap between China's water industry technology level and its actual needs as well as the world level, and promoting the sustainable development of the water industry and social economy.

Manufacturing pure water treatment equipment for alkali removal is the process of softening water through an anionic resin device. Anionic resins remove anions such as sulfate, nitrate, carbonate, and bicarbonate, which are replaced by chlorine. Salt (sodium chloride) is used to revitalize devices containing anion exchange resins. To manufacture purified water equipment, softened water is required to avoid the hazards of hard water precipitated by calcium sulfate and magnesium hydroxide in the alkali removal bed. In addition, anion exchange beds can also cause blockage of suspended substances. Because the resin of the alkali remover is lighter than that of the usual water softener resin, the backwash speed is much lower, so it is insufficient to remove suspended substances. Therefore, the pre-treatment of the softener can serve as another measure for the use of the alkali remover.

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