Ultra-pure Water System Service

Product Description

Since the industrialization of EDI module technology in 1986, thousands of EDI systems have been installed all over the world, especially in the pharmaceutical, semiconductor, electric power and surface cleaning industries, as well as in the fields of wastewater treatment, beverages and microorganisms. Is widely used.

Ultra-pure water equipment adopts pretreatment, reverse osmosis technology, mixed bed, EDI device and post-treatment methods to almost completely remove the conductive medium in the water, and also remove the non-dissociated colloidal substances, gases and organic matter in the water to a very low level. Degree of water treatment equipment. Ultrapure water equipment is also called:

ultrapure water device, ultrapure water machine, ultrapure water meter, ultrapure Water System, laboratory ultrapure water device, etc. The resistivity of the ultrapure water produced by the ultrapure water machine should generally be greater than 10 megohms, and the water above 10 megohms is called ultrapure water. Generally, the effluent of ultrapure water can reach 18.25 megohms.

In recent decades, the mixed bed ion exchange technology has been the standard process for the preparation of ultrapure water. Because it needs periodic regeneration and a large amount of chemicals (acid and alkali) and pure water are used in the regeneration process, which causes certain environmental problems, it is necessary to develop an acid- and alkali-free ultrapure water system.

Because traditional ion exchange has become increasingly unable to meet the needs of modern industry and environmental protection, the EDI technology that combines membrane, resin and electrochemical principles has become a revolution in water treatment technology. The regeneration of the ion exchange resin uses electricity instead of acid and alkali, so it is more in line with the environmental protection requirements of today's world.

The EDI device is applied after the reverse osmosis system to replace the traditional mixed ion exchange technology (MB-DI) to produce stable deionized water.
Compared with mixed ion exchange technology, EDI technology has the following advantages
①Stable water quality;
②It is easy to realize fully automatic control;
③No shutdown due to regeneration;
④No need for chemical regeneration;
⑤Low operating cost;
⑥Small footprint;
⑦No sewage discharge;
Ultrapure water equipment preparation process
1. Pretreatment system → reverse osmosis system → intermediate water tank → coarse mixed bed → fine mixed bed → pure water tank → pure water pump → ultraviolet sterilizer → polished mixed bed → precision filter → water object (≥18Mω.CM) (traditional Craft)
2. Pretreatment → reverse osmosis → intermediate water tank → water pump → EDI device → purified water tank → pure water pump → ultraviolet sterilizer → polished mixed bed → 0.2 or 0.5 μm precision filter → water object (≥18Mω.CM) (new process)
3. Pretreatment→First-stage reverse osmosis→Dosing machine (PH adjustment)→Intermediate water tank→Second-stage reverse osmosis (positive charge reverse osmosis membrane)→Pure water tank→Pure water pump→EDI device→UV sterilizer→0.2 or 0.5μm precision filter → water object (≥17Mω.CM) (new process)
4. Pretreatment → reverse osmosis → intermediate water tank → water pump → EDI device → pure water tank → pure water pump → ultraviolet sterilizer → 0.2 or 0.5 μm precision filter → water object (≥15Mω.CM) (new process)
5. Pretreatment system → reverse osmosis system → intermediate water tank → pure water pump → coarse mixed bed → fine mixed bed → ultraviolet sterilizer → precision filter → water object (≥15Mω.CM) (traditional process)

Each of the above crafts has its own advantages, you can choose the craft that suits you according to your own situation. With the development of science, many new processes have replaced the old ones. At present, the use of reverse osmosis to produce high-purity water has become popular.

Kunshan ultra pure water equipment

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Product Categories : Ultra-pure Water Equipment > First Grade Reverse Osmosis EDI Polishing Resin