| Certification: | ISO9001, RoHS, CE |
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| Salt Rejection Rate: | 99.0% |
| Application: | Industry |
| Capacity: | 250L/H |
| Function: | Water Purification |
| Frame Structure: | Stainless Steel 304/316 |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier 250lph EDI with 2 Stage RO Ultra Pure Dialysis Water System
WORKING PRINCIPLE OF EDIULTRA-PURE WATER TREATMENT EQUIPMENT
EDI-electrodeionisation system is a scientific water treatment technology, in which dielectric ions in water passing through the partition move directionally under the action of DC electric field,and water quality is purified by selective permeation of ions by exchange membrane. Between a pair of electrodes of electrodialyzer, a plurality of groups of negative membranes positive membranes and separators(A and B) are alternately arranged to form a concentrated chamber and a weak chamber(i.e,cations can pass through the positive membrane and anions c an pass through the negative membrane).Cations in the light chamber water migrate to the negative electrode and pass through the positive membrane,and are intercepted by the negative membrane in the concentrated chamber;Anions in the water migrate to the cathode direction and are intercepted by the anode membrane in the concentrated chamber, so that the number of ions in the water passing through the light chamber gradually decreases and becomes fresh water while the concentration of dielectric ions in the concentrated chamber continuously rises due to the continuous influx of anions and cations in the concentrated chamber, and becomes concentrated water, thus achieving the purpose of desalination,purification, concentration or refining
APPLICATION FIELD OF EDI ULTRA-PURE WATER TREATMENT EQUIPMENT
1. Chemical water treatment of power plant
2. Ultra-pure water in electronics,semiconductor and precision machinery industries
3. Preparation of food,beverage and drinking water
4. Small pure water station group drinking pure water
5. Water use for fine chemicals and sophisticated disciplines
6. Preparation of high-purity water required by other industries
7.Process water for pharmaceutical industry
8. Desalination of seawater and brackish water
Advantages of EDI Technology
1.Best stability of water quality
2.Constantly produce ultrapure water as per user requirements
3.Modular production, can achieve automatic control
4.No need acid and alkali regeneration, no pollution emissions
5.No need stop because of regeneration
6.No need regeneration equipment and chemical storage
7.Compact equipment, small size
8.Low operation and maintenance cost
9.Simple operation and low labor strength
EDI system
EDI, also known as electric desalination. It is a new ultra pure water technology which gradually developed in the 20th century. EDI equipment combined electro dialysis technology and ion exchange technology. It is using the selectivity penetrate function of anion and cation membrane and exchange function of ion exchange resin, under direct current electric field to make ion directed migration. Finally to make deep desalination of water. In the same time, hydrogen ion and hydroxide ion which produced when water ionize will regenerate ion exchange resin. So if use EDI equipment, no need acid and alkali chemical to do any regeneration, and it can produce ultra pure water continuously.
Process
Raw water tank(user supply) → raw water pump → sand filter → carbon filter → softener filter → security(micro) filter → high pressure pump 1st → reverse osmosis system 1st →high pressure pump-2nd reverse osmosis system 2nd→UV lamp→EDI system→ pure water tank(user supply) - outlet
Main parts function
1. Raw water pump-- provide the pressure to quartz sand filter/active carbon filter/softener.
2. Multi-medium filter--get rid of turbidity, suspended matter, organic matter, colloid, etc.
3. Active Carbon filter--Remove the color, smell, free chloride, organic matter, harmful matter, etc.
4. Softener--exchange "ions" of calcium and magnesium with the most common and easiest method.
5. Security filter--prevent large particles, bacteria, viruses into RO membrane, accuracy is 5um,
6. High pressure pump--Provide the high pressure to RO membrane.
7. RO system-- main part of the plant. The RO membrane's desalting rate can reach 99%, removing over 99% ions.
Q: Are you trading company or manufacturer ?
A: Yes, we are a manufacture with designing, manufacturing, marketing and exporting.
Q: What's the information you need to know before order?
A: what's your raw water ?
B: what's the capacity per hour of the equipment ?
C: What's the application of purifier water ?
Q:Which machine should I choose?
A:It depends on your raw water quality ,pure water requirement and the water production you need
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 40% T/T in advance ,60% TTbalance before shipment.
Q: How long is your delivery time?
A: Generally it is 15-30 days, Depends on your project.
Q:How can you control the quality and delivery?
A:All our machines will be tested before packaging. wooden packing is strong and safety for long delivery.
Q:What's your warranty?
A:Our warranty is 1 year. But normally, our machine can work 5 years before repair.
Suppliers with verified business licenses
Audited Supplier 
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