Thread Content
Thanks to the rapid advancement of water treatment technology, EDI ultra-pure water systems have gradually become widely accepted in the pharmaceutical industry, microelectronics industry, power generation industry, and laboratories. As a result, specialized electronic cleaning ultra-pure water systems have also been developed for use in surface cleaning, surface coating, electrolysis industries, the chemical industry, and the solar photovoltaic industry. The new type of electronic cleaning ultrapure water equipment uses EDI to replace the traditional mixed-ion exchange technology (MB-DI) for producing stable deionized water. Compared with mixed ion exchange technology, EDI technology has the following advantages: 1. A smaller amount of ion exchange resin is required, approximately 5% of that used in traditional ion exchange methods. 2. Ion exchange resins do not require acid or alkali for chemical regeneration, saving a large amount of acid, alkali, and water used for cleaning, **reducing labor intensity. 3. There is no discharge of waste acid or waste alkaline solutions; it is a clean production technology and constitutes an environmentally friendly product. 4. The process allows for easy automatic control, resulting in stable water quality. When combined with other water treatment technologies such as RO, it enables the creation of comprehensive production lines for pure water and ultrapure water. 5. The quality of the produced water is high; it can meet the **electronic-grade water Class I standards, with a resistivity of 15–18 MΩ·cm and a bacterial endotoxin content of less than 0.1 mg/L. This meets all the requirements for pharmaceutical water as specified in the Chinese Pharmacopoeia and the United States Pharmacopeia. 6. It has an excellent ability to remove weakly dissociated substances (such as carbon dioxide, silicon, boron, ammonia, etc.), making it more suitable for the requirements of ultra-pure water.