1、 What is EDI pure water equipment
EDI pure water equipmentThe mature technology that replaces mixed ion exchange beds with reverse osmosis systems has stable water production quality, low operating costs, and convenient operation and management. Advantages such as small footprint and no harmful wastewater discharge. The development direction of ultrapure water preparation technology has been certified by major water treatment engineering companies around the world. Since the industrialization of EDI technology in 1986, thousands of sets of EDI have been put into branches, especially widely used in industries such as pharmaceuticals, semiconductors, power, and optoelectronics. Overall, there are eight major advantages:
① No need for acid-base regeneration;
② Can be continuously produced:
③ No need to treat waste acid and alkali;
④ Low operating costs;
⑤ The system design and installation are simple;
⑥ Simple installation conditions;
⑦ Stable effluent quality;
⑧ Standard design.

2、 EDI Pure Water Equipment Technology
EDI is a revolutionary advancement in water treatment technology. This technology applies the electric regeneration ion exchange desalination process to replace the traditional mixed ion exchange desalination process DI. The high desalination effect is achieved through ion exchange resin and selective ion membrane, and the combined process with reverse osmosis enables the water quality of the produced water to reach high specifications of 10-15 M Ω• CM.
3、 Basic parameters of EDI pure water equipment
1. Water supply: RO pure water, with a general conductivity of 4-30 US/cm.
2. PH: 5.0-8.0 (Under this pH condition, the water hardness should not be too high)
3. Temperature: 5-35 ℃
4. Inlet pressure: maximum 4kg/cm2 (60psi), minimum 1.5kg/cm2 (25psi).
4、 Advantages of EDI pure water module (electric desalination)
1. No need for acid-base regeneration: The operation of electric desalination is safe, and the treatment of wastewater becomes simple.
2. Continuous production: The production of electric desalination is continuous, eliminating the need for complex regeneration operations in the mixed bed process and reducing many backup equipment.
3. No need to treat waste acid and alkali: There is no neutralization and discharge treatment system for waste acid and alkali. The concentrated water from electric desalination can be directly discharged or returned to the inlet of RO (EDI has much less concentrated water than pure water).
4. Simple installation conditions: Electric desalination requires a small footprint during installation, which can be met by most standard factories. For lower factories, the horizontal configuration of the electric desalination module can be used to solve the problem.
5. The system design is simple: the module design of electric desalination makes it easy to achieve a flow rate of 450 tons/hour or even higher.
6. Low operating cost: Compared with various mixed beds, the electric desalination system is competitive in price.
7. Practical design: For the electric desalination system, it is easy to maintain or increase the capacity of the equipment. When it is necessary to replace the membrane stack, it can be completed with minimal downtime on site.
8. Stable water quality: The effluent quality of electric desalination is guaranteed to be stable. There will be no water quality changes like ordinary mixed beds.
9. Easy installation and maintenance: The electric desalination device allows for the redistribution of flow to other membrane stacks to meet the maintenance requirements of a particular membrane stack without changing the system's performance.
10. Standard design: By using standard units and combining them like building blocks, users can meet their different water production needs.

4、 Application of ED pure water equipment
EDI pure water equipment is applied in the battery industry, while ultrapure water equipment has a wide range of applications in the industrial sector. Ultra pure water used in the battery industry includes pure water for battery production, pure water for lithium battery production, pure water for solar cell production, and pure water for battery grids. The preparation of electrolyte in batteries requires very strict requirements for pure water, usually requiring a conductivity of 0.1us/cm (resistance value of 10 megaohms) or higher. The traditional process for preparing ultrapure water for batteries often uses cation anion resin exchange equipment, but the disadvantage of this process is that the resin needs to be regenerated frequently after a period of use.
1. Electronics, power, electroplating, lighting appliances, laboratories, food, papermaking, daily chemical products, building materials, paint making, batteries, laboratory testing, biology, pharmaceuticals, petroleum, chemical industry, steel, glass and other fields.
2. Chemical process water, chemical agents, cosmetics, etc. are prepared using pure water.
3. Pure water is used in the production processes of monocrystalline silicon, semiconductor chip cutting and manufacturing, semiconductor chips, semiconductor packaging, lead cabinet frames, integrated circuits, liquid crystal displays, conductive glass, picture tubes, circuit boards, optical communications, computer components, capacitor cleaning products, and various electronic components.
4. Water used in the food industry: purified drinking water, mineral water, materials, beer, dairy industry, etc.
5. Desalination of seawater and brackish water: Improvement of domestic water use in islands, ships, and high salinity areas.
6. High quality water supply for buildings and communities: star rated hotels, airports, real estate and property pure water network systems, etc.
7. Process water in the chemical industry: chemical cooling, fertilizer, chemical agent manufacturing.
8. Industrial product manufacturing water: pure water preparation for automobile, household appliance coating, paint, fine processing cleaning, etc.
9. Boiler supply water for the power industry: water for thermal, thermal power generation boilers, medium and low voltage boiler power systems, fine chemical engineering, and advanced disciplines.