Chip ultra pure water equipment

Chip ultra pure water equipmentProduct Introduction:

The EDI membrane stack is mainly composed of alternating cation exchange membranes, concentrated water chambers, anion exchange membranes, fresh water chambers, and positive and negative electrodes. Under the action of a direct current electric field, cations and anions in the ion exchange resin in the freshwater chamber migrate along the channels formed by the resin and membrane towards the negative and positive directions, respectively. Cations pass through the cation exchange membrane, anions pass through the anion exchange membrane, and enter the concentrated water chamber to form concentrated water. At the same time, the cations and anions in the EDI inlet are exchanged with the hydrogen ions and hydroxide ions in the ion exchange resin to form ultrapure water (high-purity water). The current causes a large amount of hydrogen ions and hydroxide ions generated by water electrolysis to continuously work on the ion exchange resin.

Chip ultra pure water equipmentProduct Features:

EDI can replace traditional mixed ion exchange technology (MB-DI) to produce stable deionized water. EDI technology has the following advantages compared to mixed ion exchange technology:

1. The amount of ion exchange resin used is relatively small, about 5% of the amount of resin used in traditional ion exchange methods.

2. Ion exchange resin does not require acid, saving a lot of acid, alkali, and cleaning water, and reducing labor intensity.

3. No waste acid or alkali liquid discharge, it is a clean production technology.

4. The process is automatically controlled, and the quality of the produced water is stable. Combined with RO and other water treatment technologies, it can form a complete production line for pure water and ultrapure water.

5. The quality of the produced water is high and can meet the national electronic grade water I standard, with a resistivity of 18M Ω· cm.

6. The pure water production process is carried out continuously, without the need to repeatedly set up one set in use like an ion exchange bed

Scope of application:

EDI ultra pure water technology has the advantages of technology and easy operation, and is a clean production technology. It is increasingly widely used in fields such as microelectronics, power industry, pharmaceutical industry, chemical industry, and laboratories.

Emerging optoelectronic material production, processing, and cleaning; LCD screens, PDP plasma displays, high-quality fluorescent tubes, microelectronics industry, FPC/PCB circuit boards, circuit boards, and integrated circuits require a large amount of high-purity water and ultrapure water to clean semi-finished and finished products. The higher the integration level of integrated circuits, the higher the requirements for water quality, which also puts forward stricter requirements for the simplicity, automation level, production continuity, sustainability, and other aspects of ultrapure water treatment processes and products.