Laboratory Ultrapure Water System EDI Water Treatment Plant

Basic Information
Place of Origin: China
Brand Name: XST
Certification: ISO9001
Minimum Order Quantity: 1 Unit
Price: USD 2000-10000 Per Unit
Packaging Details: Wooden Case
Delivery Time: 10-20 work day
Payment Terms: T/T, L/C, D/A, D/P
Supply Ability: 100 Units Per Month
Output Flow: 300LPH-10000 LPH Voltages: 220V / 380V , 50HZ / 60HZ
System Control: Automatic Or Manual As Customized Recovery Percent: 95%
Brand Name: GE, MICRONIX After-sale Guarnatee: 1 Year
Inlet Conductivity: ≤20μm/cm Advised Conductivity: 2-10μm/cm
Origin: China Application: Water Treatment
High Light:

20μm/cm EDI Water Treatment Plant


300LPH EDI Water Treatment Plant


DN20 EDI Water Treatment Plant

Laboratory Ultrapure Water System Electrodeionization EDI Module for Pure Water Treatment


Product Description

In EDI high purity water is produced by combining ion exchange resin with ion exchange membranes inside a stack. Ions are removed from the water using a DC CURRENT. This DC CURRENT also continuously regenerates the ion exchange resin without using regeneration chemicals.


Reverse osmosis (RO) permeate enters the EDI stack in the figure below. Initially ion exchange occurs with the ion exchange media in the dilute compartments. Under the influence of an applied electrical potential, ions move towards their respective electrode. Cations in the diluting compartment move towards the cathode and pass through the cation membrane into a concentrate compartment. These cations are trapped in the concentrate compartment as they cannot pass the anion membrane. Anions move in the reverse direction towards the anode and are similarly trapped in the concentrate compartment. A small fraction of the RO permeate flushes the ions out of the concentrate compartments, producing the concentrate stream. Water splitting produces H+ and OH− ions providing continuous regeneration of the resin in the dilute compartments. On the concentrate side H+ and OH− recombine to produce H2O.



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Inlet water quality request

1. Feed water: after RO treatment, conductivity< 30us/cm

2. PH:7.5~9.0

3. Inlet waterTemperature:5~38℃

4. Inlet water pressure:0.2~0.5Mpa

5. Total Hardness(CaCo3):< 0.5ppm

6. Organics:TOC<0.5ppm

7. Total Oxidizer:C12<0.05ppm;O3<0.02ppm

8. Total Silicon:<0.5ppm(SiO2)

9. Total CO2:<3ppm

10. Particulates:< 1μm


Standard System


Model Flow
Electrical resistivity
Rated Volatag Recovery Inlet Pure water
XSTEDI05 5 15~18.2 1 220V/380v 85~95% DN20 DN20
XSTEDI10 1 15~18.2 1 220V/380v 90~95% DN25 DN25
XSTEDI20 2 15~18.2 1 380V 90~95% DN25 DN25
XSTEDI30 3 15~18.2 1 380V 90~95% DN25 DN25
XSTEDI40 4 15~18.2 1 380V 90~95% DN32 DN32
XSTEDI50 5 15~18.2 1 380V 90~95% DN32 DN32
XSTEDI80 8 15~18.2 2 380V 90~95% DN40 DN40
XSTEDI100 10 15~18.2 2.5 380V 90~95% DN50 DN50


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Working Flow of EDI Machine

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1. Raw water booster pump-- provide the pressure to quartz sand filter/active carbon filter.

2. Multi-media filters-- get rid of turbidity, suspended matter, organic matter, colloid, ect

3. Actived carbon filter--Remove the color, free chloride, organic matter, harmful matter, ect.

4. Water softener--exchange "ions" of calcium and magnesium with the most common and easiest method.

5. Precision filter--prevent large particles, bacteria, viruses into RO membrane, accuracy is 5um.

6. High pressure pump-- Provide the high pressure to RO membrane.

7. 2 passes RO membrane-- remove more than 99% ions, bacteria, salt, microorganism, heavy ions, colloid,emdotoxin and other particles in the water.

8. EDI module-- produce more than 15MΩ.cm ultrapure water.




When fed with low TDS feed (e.g., feed purified by RO), the product can reach very high purity levels (e.g. 18megohms/cm). The ion exchange resins act to retain the ions, allowing these to be transported across the ion exchange membranes. The main applications of EDI technology, such as that supplied by Ionpure, E-cell and SnowPure, are in electronics, pharmaceuticals and power generation.

One important aspect in the water treatment application is that some types of EDI needs to have feed water that is free from CO
2, as well as other dissolved gasses, since these put unnecessary strain on the EDI unit and will reduce performance.


Thermal power plant, Atomic energy, Electronic optoelectronics industry, Printing industry, Automotive battery industry, Bioengineering, Synthenic chemical industry, Petrochemical industry, Environment industry, Hydrometallurgical industry, etc.

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Why choose us

1. Professional manufacturer : More than 20 years experience in prodcuing pure water treatment system

2. Strict time control : Ensure delivery time.

3. Factory strength: The factory area is more than 2000m3, more than 150 workers.

4. After-sales service : 24 Hours online for service.

5. Customized is available. Sample order is available.


Packing and shipping


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Contact Details

WhatsApp : +17391819659