EDI equipment manufacturing history and its advantages

In recent decades, the standard process of ultra pure water preparation has always been mixed bed ion exchange technology. However, with the continuous promotion of the process, it is found that the technology needs to be regenerated periodically, and in the regeneration process, a large number of chemicals such as acid and alkali and industrial pure water are consumed, which will also damage the environment to a certain extent. Therefore, it is very important to develop acid-free ultrapure water system.

Because the traditional ion exchange has been unable to meet the needs of modern industry and environmental protection. EDI technology, which combines membrane, resin and electrochemical principle, has become a revolution of water treatment technology. The regeneration of ion exchange resin uses electric energy instead of acid and alkali, so it can meet the needs of environmental protection in the world.

Since the industrialization of EDI membrane stack technology in 1986, thousands of EDI systems have been installed all over the world, especially in the pharmaceutical, semiconductor, power and surface cleaning industries, which have been greatly developed. At the same time, they have been widely used in wastewater treatment, beverage and microorganism fields.

EDI ultra pure water equipment is used in reverse osmosis system to replace the traditional mixed bed ion exchange technology (mb-di) to produce stable ultra pure water.

Advantages of EDI equipment:

1. Ultra pure water is produced continuously, and the effluent quality has the best stability. Ultra pure water is produced with high yield (the yield can be as high as 95%).

2. Modular production to realize full-automatic control of equipment;

3. It does not need acid-base regeneration and will not shut down due to regeneration;

4. No need for acid-base dilution transportation facilities and acid-base reserve;

5. The equipment has compact structure, small volume and small floor area;

6. Safe and reliable use, avoiding manual contact with acid and alkali;

7. Water for backwash and cleaning is saved, no reclaimed sewage and no sewage treatment equipment is required;

8. The installation is simple and convenient, and the installation cost is low; the operation cost and maintenance cost of the equipment are reduced;

9. The operation of the equipment is simple and the labor intensity is low;