J9旗舰厅

1、 Equipment name: EDI device

2、 Specification and model: hdnedi-2000

3、 Equipment brand: Wenzhou Haineng wzhdn

4、 Product Description:

1、EDI is a combination of electrodialysis and ion exchange each other together in addition to the new technology of salt, this process takes electrodialysis and ion exchange, both short offset each other, it is using ion exchange can deep desalting to overcome polarization and electrodialysis desalination is not complete, and use of electrodialysis polarization and water and electricity produced from H + and OH - ions to realize automatic resin regeneration to overcome the defect of resin by chemical regeneration after failure, and therefore EDI technology is a kind of perfect desalination technology.

2. In the EDI desalting process, the ions in the water and the hydroxide ions or hydrogen ions in the ion exchange resin are exchanged, and then these ions are transferred into the concentrated water;

3. The above exchange reaction takes place in the fresh water chamber of the module. In the fresh water chamber, the hydrogen ion in the anion exchange resin exchanges with the anion in the water, and the hydrogen ion in the cation exchange resin exchanges with the cation in the water;

4. Under the action of direct current, the exchanged ions migrate along the surface of resin ball and enter the concentrated water chamber through ion exchange;

5. The anions with negative charge are attracted by the anode, and these ions enter into the adjacent concentrated water chamber through the negative membrane, while the adjacent positive membrane does not allow them to pass through,

These ions are blocked in the concentrated water, and the cation with positive charge is attracted by the anion separator. These ions enter into the adjacent concentrated water chamber through the cation membrane, but the adjacent anion membrane does not allow them to pass through. These ions are blocked in the concentrated water;

6、In concentrated water, ions from both directions maintain neutral electricity. At the same time, the current is proportional to the migration of ions. The current consists of two parts, one of which is caused by the migration of removed ions, the other by the migration of H+ and OH- ions ionized by the water itself.

7. When the water flows through the fresh water chamber and the concentrated water chamber, the ions gradually enter into the adjacent concentrated water chamber from the fresh water chamber, and are carried out of the EDI module by the concentrated water;

8、Under the action of high voltage ladder, water will generate a large number of H+ and OH- by electrolysis, and these H+ and OH- generated in place will carry out continuous regeneration of ion exchange resin. Therefore, ion exchange resin in EDI components does not need chemical regeneration.

9. This is the EDI desalting process. 　

5. Technical features:

1. It can be produced continuously with high water production resistivity ≥ 15m Ω. Cm-18m Ω. Cm

2. Water production rate can be as high as 90%

3. The quality of produced water is stable. No need for acid alkali regeneration

4. No sewage

5. The system has high automation, simple operation and low labor intensity

6、 Technical requirements:

1. Water supply: RO produced water, conductivity ≤ 20 μ s / cm (recommended<10μs/cm )

2. PH value: 6.0 ~ 9.0 (7.0 ~ 9.0 recommended)

3. Water temperature: 5 ~ 35 ℃

4. Hardness (by CaCO3)<  0.5 ppm

5. Organic matter<  0.5 ppm　，The TOC recommended value is zero

6. Oxide ≤ 0.05 ppm (Cl2), 0.02 ppm (O3), both of which are zero optimal

7,Fe,Mn ≤ 0,0１ ppm

8. Silica<  0.5 ppm

9. Carbon dioxide<  5 ppm

10. Oil and grease cannot be detected

Solar photovoltaic, monocrystalline silicon, polycrystalline silicon, biology, medicine, electronic power, petroleum, chemical industry, smelting, food and other industries, as well as laboratory tests.

1. The system equipment is entitled to one-year free warranty, the warranty date is calculated from the date of product acceptance, and the consumable filter material is not listed here.
2. In case of any equipment quality problem (except caused by misoperation or unforeseen factors) during the warranty period, the supplier shall repair it free of charge and replace the damaged parts.
3. After the expiration of the warranty period, only a certain material fee and appropriate technical service fee will be charged.
4. In case of system operation failure which cannot be solved by itself or by telephones, our technical maintenance personnel shall make solutions (including temporary measures) and schedule within 24 hours after receiving the written notice from the demander and report to the competent leaders of both parties.
5. After the delivery of the equipment, our company will have engineers to pay a return visit to understand the operation of the equipment and provide technical services in a timely manner. Users are welcome to ask any technical questions, and we will reply in time.

① the user shall provide detailed data of raw water test, so that our company can carry out relevant selection and arrangement calculation.
② the user shall explain the water quality requirements, use and water yield of the produced water.
③ our company has many types of pressure vessels, membranes, accessories, etc. if the user gives special instructions, we will try our best to meet the requirements.
④ our company provides installation and debugging for the designed and sold equipment and training for the user's operation personnel.
⑤ our company implements the principle of one-year equipment warranty and lifelong service for users, and establishes archives for tracking service to ensure the quality level.

If the above equipment fails to meet your requirements, please contact us, and we will formulate a detailed engineering plan based on your actual situation, to achieve a low-cost, high efficiency and scientific process combination, so that the water production can meet your ideal requirements.