Pretreatment Upgrades
- Automatic multimedia and carbon filters
- Softener or antiscalant dosing
- pH adjustment and membrane degassing
- Automatic double-pass RO flushing
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1m³/h EDI Ultrapure Water System
The 1m³/h EDI ultrapure water system from Zhongnuo integrates double-pass reverse osmosis (RO) and continuous electrodeionization (EDI) technology to produce stable high-purity deionized water without routine chemical regeneration. With a rated output of 1,000 L/h, this industrial EDI water plant delivers exceptionally consistent water quality and is ideal for electronics, pharmaceutical, laboratory and precision manufacturing applications requiring reliable ultrapure process water.
The 1m³/h EDI ultrapure water system from Zhongnuo integrates double-pass reverse osmosis (RO) and continuous electrodeionization (EDI) technology to produce stable high-purity deionized water without routine chemical regeneration. With a rated output of 1,000 L/h, this industrial EDI water plant delivers exceptionally consistent water quality and is ideal for electronics, pharmaceutical, laboratory and precision manufacturing applications requiring reliable ultrapure process water.
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Product Description
Industrial RO + EDI Ultrapure Water
1m³/h EDI Ultrapure Water System
A fully automatic double-pass RO and continuous electrodeionization plant engineered to deliver stable high-purity deionized water without routine acid or alkali regeneration.
Product Overview
Compact Ultrapure Water PlantThe Zhongnuo 1m³/h EDI system combines pretreatment, double-pass reverse osmosis and EDI polishing to supply consistent deionized water for electronics, pharmaceutical, laboratory and precision-manufacturing processes.
Unlike a conventional mixed bed, EDI removes residual ions continuously without routine chemical regeneration, reducing chemical handling, downtime and waste discharge.
Explore additional EDI ultrapure water equipment capacities.
| Item | Specification |
|---|---|
| Product name | 1m³/h EDI Ultrapure Water System |
| Rated capacity | 1 m³/h (1,000 L/h) |
| Operating range | 0.8–1.2 m³/h |
| Maximum daily output | Up to 24 m³/day |
| Core process | Pretreatment + double-pass RO + EDI |
| Operation | Fully automatic continuous operation |
| Installation | Integrated skid-mounted |
Feedwater & EDI Inlet Requirements
Protect the EDI ModuleMunicipal Tap WaterTreated through the complete pretreatment and double-pass RO train.
Pre-Treated Borehole WaterRequires raw-water analysis and suitable hardness/metal removal.
Low-TDS GroundwaterConfigured according to salinity, silica and hardness.
Industrial Purified WaterFurther polishing for higher resistivity applications.
Existing RO PermeateAccepted only after inlet-quality verification.
!
EDI cannot be fed directly with tap water or groundwater. Low-conductivity RO permeate is required to prevent scaling or irreversible module damage and to maintain stable outlet resistivity.
Typical EDI Feed Targets
Final limits must follow the selected EDI module manufacturer's specification and the project water analysis.
| Parameter | Recommended Inlet Limit |
|---|---|
| Conductivity | ≤10 μS/cm |
| Hardness | ≤1 mg/L as CaCO₃ |
| Silica | ≤0.5 mg/L |
| Free chlorine | Controlled to non-damaging levels |
| Carbon dioxide | Controlled by pH adjustment or degassing |
Product-Water Quality
Stable High-Purity Output≥15 MΩ·cmTypical EDI outlet resistivity referenced to 25°C
Equivalent conductivity is ≤0.067 μS/cm under the specified feedwater and operating conditions.
Continuous Ion RemovalStable operation without routine acid or alkali regeneration.
Ultra-Low HardnessResidual dissolved minerals are significantly reduced.
Temperature ReferencedOn-site resistivity varies with water temperature.
18.2 MΩ·cm UpgradeUsually requires polishing, TOC UV, final filtration and a recirculation loop.
Microbial and TOC limits must be defined separately according to the final application and distribution-loop design.
Treatment Process
Double-Pass RO + EDIRaw-Water Tank
Feed Pump
Multimedia Filter
Activated Carbon
Softener / Dosing
5μm Filter
First-Pass RO
Intermediate Tank
Second-Pass RO
EDI Module
UV & Final Filter
Tank & Loop
Pretreatment and RO configuration are customized according to the raw-water analysis and target resistivity. Learn more about our reverse osmosis systems.
Optional Configurations
Build to Water StandardPolishing & Sanitization
- Polishing mixed bed up to 18.2 MΩ·cm
- 185nm TOC-reduction UV
- 254nm UV sterilization
- 0.22μm final filter and ozone sanitization
Automation & Monitoring
- Online resistivity and conductivity
- Optional TOC and flow monitoring
- PLC + HMI touchscreen
- Remote alarms and operating data
Sanitary Materials
- Sanitary SS316L water tank
- SS316L or PVDF distribution loop
- SS304 or SS316L equipment frame
- Customized EDI module brand
Technical Parameters
Typical Design Data| Parameter | Typical Specification |
|---|---|
| Rated product-water capacity | 1 m³/h (1,000 L/h) |
| Operating range | 0.8–1.2 m³/h |
| Maximum daily production | 24 m³/day |
| Core configuration | Double-pass RO + EDI polishing |
| First-pass RO rejection | Typically ≥98% |
| Combined double-pass RO rejection | Typically ≥99.5% |
| EDI outlet resistivity | ≥15 MΩ·cm at 25°C |
| Product-water conductivity | ≤0.067 μS/cm |
| Optional polished resistivity | Up to 18.2 MΩ·cm |
| EDI-stage recovery | Typically 90%–95% |
| Overall recovery | Based on feedwater and RO design |
| RO membrane | Industrial 4040 membranes |
| Cartridge filter | 5 μm |
| Control system | Automatic PLC + HMI |
| Product-water piping | SS316L, sanitary UPVC or PVDF |
| Frame material | SS304 or SS316L |
| Power supply | Customized to local standard |
| Installation | Integrated skid-mounted |
| Warranty | One year |
Final performance depends on feedwater, temperature, EDI module selection, sanitization and distribution-loop design.
Applications
High-Purity IndustriesSemiconductor & ElectronicsComponent cleaning and high-purity production water.
PCB ManufacturingRinsing and process-water applications.
Pharmaceutical & BiotechProject-specific sanitary and validation requirements.
Medical DevicesHigh-purity cleaning and process support.
LaboratoriesCentral purified-water supply.
Photovoltaic ProductionSolar-cell manufacturing and cleaning.
Lithium BatteriesPrecision production-water treatment.
Power PlantsBoiler makeup-water polishing.
Cosmetics & Fine ChemicalsStable high-purity process water.
RO + EDI vs. Mixed Bed
Continuous Deionization| Aspect | RO + EDI System | Conventional Mixed Bed |
|---|---|---|
| Regeneration | Continuous electrical regeneration | Periodic acid/alkali regeneration |
| Operation | Automatic continuous output | Downtime during regeneration |
| Operating cost | Lower chemical and labor demand | Higher chemical and handling cost |
| Water quality | Stable consistent resistivity | Declines between regenerations |
| Waste | Minimal regeneration chemical waste | Regular acid/alkali waste |
| Footprint | Compact integrated skid | Separate chemical storage required |
Frequently Asked Questions
EDI Technical AnswersCan EDI directly treat tap water?
No. EDI requires low-conductivity RO permeate. Double-pass RO is normally used to protect the module and maintain stable resistivity.
Does EDI require chemical regeneration?
No. It uses electricity, ion-exchange resin and ion-selective membranes for continuous deionization without routine acid/alkali regeneration.
Can EDI alone produce stable 18.2 MΩ·cm water?
Usually not. Stable 18.2 MΩ·cm water normally requires polishing treatment and a properly designed ultrapure-water recirculation loop.
Why control carbon dioxide?
Dissolved CO₂ increases EDI ionic load and can reduce outlet resistivity. Degassing or pH adjustment may be required.
Can the system run continuously?
Yes. EDI performs best under stable continuous operation. Storage and recirculation are recommended for variable point-of-use demand.
Do you provide installation services?
Yes. Factory testing, installation guidance, commissioning and operator training are available for overseas projects.
Information Required for Quotation
Project InputGet an Accurate RO + EDI Design
Provide the information below so our engineers can confirm pretreatment, membrane projection, EDI sizing, sanitary materials and distribution-loop requirements.
Complete raw-water analysis
Raw-water source
Required capacity and flow profile
Target resistivity or conductivity
TOC and microbial limits
Final application and industry
Daily operating hours
Local voltage and frequency
Preferred RO and EDI brands
Tank and piping standards
Distribution-loop requirements
Sanitization and validation needs
Available installation space
Project location and port
Installation and commissioning needs
Planning a 1m³/h Ultrapure Water Project?
Send your water analysis and target water standard for a customized RO + EDI proposal.
Industrial RO + EDI Ultrapure Water
1m³/h EDI Ultrapure Water System
A fully automatic double-pass RO and continuous electrodeionization plant engineered to deliver stable high-purity deionized water without routine acid or alkali regeneration.
Product Overview
Compact Ultrapure Water PlantThe Zhongnuo 1m³/h EDI system combines pretreatment, double-pass reverse osmosis and EDI polishing to supply consistent deionized water for electronics, pharmaceutical, laboratory and precision-manufacturing processes.
Unlike a conventional mixed bed, EDI removes residual ions continuously without routine chemical regeneration, reducing chemical handling, downtime and waste discharge.
Explore additional EDI ultrapure water equipment capacities.
| Item | Specification |
|---|---|
| Product name | 1m³/h EDI Ultrapure Water System |
| Rated capacity | 1 m³/h (1,000 L/h) |
| Operating range | 0.8–1.2 m³/h |
| Maximum daily output | Up to 24 m³/day |
| Core process | Pretreatment + double-pass RO + EDI |
| Operation | Fully automatic continuous operation |
| Installation | Integrated skid-mounted |
Feedwater & EDI Inlet Requirements
Protect the EDI ModuleMunicipal Tap WaterTreated through the complete pretreatment and double-pass RO train.
Pre-Treated Borehole WaterRequires raw-water analysis and suitable hardness/metal removal.
Low-TDS GroundwaterConfigured according to salinity, silica and hardness.
Industrial Purified WaterFurther polishing for higher resistivity applications.
Existing RO PermeateAccepted only after inlet-quality verification.
!
EDI cannot be fed directly with tap water or groundwater. Low-conductivity RO permeate is required to prevent scaling or irreversible module damage and to maintain stable outlet resistivity.
Typical EDI Feed Targets
Final limits must follow the selected EDI module manufacturer's specification and the project water analysis.
| Parameter | Recommended Inlet Limit |
|---|---|
| Conductivity | ≤10 μS/cm |
| Hardness | ≤1 mg/L as CaCO₃ |
| Silica | ≤0.5 mg/L |
| Free chlorine | Controlled to non-damaging levels |
| Carbon dioxide | Controlled by pH adjustment or degassing |
Product-Water Quality
Stable High-Purity Output≥15 MΩ·cmTypical EDI outlet resistivity referenced to 25°C
Equivalent conductivity is ≤0.067 μS/cm under the specified feedwater and operating conditions.
Continuous Ion RemovalStable operation without routine acid or alkali regeneration.
Ultra-Low HardnessResidual dissolved minerals are significantly reduced.
Temperature ReferencedOn-site resistivity varies with water temperature.
18.2 MΩ·cm UpgradeUsually requires polishing, TOC UV, final filtration and a recirculation loop.
Microbial and TOC limits must be defined separately according to the final application and distribution-loop design.
Treatment Process
Double-Pass RO + EDIRaw-Water Tank
Feed Pump
Multimedia Filter
Activated Carbon
Softener / Dosing
5μm Filter
First-Pass RO
Intermediate Tank
Second-Pass RO
EDI Module
UV & Final Filter
Tank & Loop
Pretreatment and RO configuration are customized according to the raw-water analysis and target resistivity. Learn more about our reverse osmosis systems.
Optional Configurations
Build to Water StandardPretreatment Upgrades
- Automatic multimedia and carbon filters
- Softener or antiscalant dosing
- pH adjustment and membrane degassing
- Automatic double-pass RO flushing
Polishing & Sanitization
- Polishing mixed bed up to 18.2 MΩ·cm
- 185nm TOC-reduction UV
- 254nm UV sterilization
- 0.22μm final filter and ozone sanitization
Automation & Monitoring
- Online resistivity and conductivity
- Optional TOC and flow monitoring
- PLC + HMI touchscreen
- Remote alarms and operating data
Sanitary Materials
- Sanitary SS316L water tank
- SS316L or PVDF distribution loop
- SS304 or SS316L equipment frame
- Customized EDI module brand
Technical Parameters
Typical Design Data| Parameter | Typical Specification |
|---|---|
| Rated product-water capacity | 1 m³/h (1,000 L/h) |
| Operating range | 0.8–1.2 m³/h |
| Maximum daily production | 24 m³/day |
| Core configuration | Double-pass RO + EDI polishing |
| First-pass RO rejection | Typically ≥98% |
| Combined double-pass RO rejection | Typically ≥99.5% |
| EDI outlet resistivity | ≥15 MΩ·cm at 25°C |
| Product-water conductivity | ≤0.067 μS/cm |
| Optional polished resistivity | Up to 18.2 MΩ·cm |
| EDI-stage recovery | Typically 90%–95% |
| Overall recovery | Based on feedwater and RO design |
| RO membrane | Industrial 4040 membranes |
| Cartridge filter | 5 μm |
| Control system | Automatic PLC + HMI |
| Product-water piping | SS316L, sanitary UPVC or PVDF |
| Frame material | SS304 or SS316L |
| Power supply | Customized to local standard |
| Installation | Integrated skid-mounted |
| Warranty | One year |
Final performance depends on feedwater, temperature, EDI module selection, sanitization and distribution-loop design.
Applications
High-Purity IndustriesSemiconductor & ElectronicsComponent cleaning and high-purity production water.
PCB ManufacturingRinsing and process-water applications.
Pharmaceutical & BiotechProject-specific sanitary and validation requirements.
Medical DevicesHigh-purity cleaning and process support.
LaboratoriesCentral purified-water supply.
Photovoltaic ProductionSolar-cell manufacturing and cleaning.
Lithium BatteriesPrecision production-water treatment.
Power PlantsBoiler makeup-water polishing.
Cosmetics & Fine ChemicalsStable high-purity process water.
RO + EDI vs. Mixed Bed
Continuous Deionization| Aspect | RO + EDI System | Conventional Mixed Bed |
|---|---|---|
| Regeneration | Continuous electrical regeneration | Periodic acid/alkali regeneration |
| Operation | Automatic continuous output | Downtime during regeneration |
| Operating cost | Lower chemical and labor demand | Higher chemical and handling cost |
| Water quality | Stable consistent resistivity | Declines between regenerations |
| Waste | Minimal regeneration chemical waste | Regular acid/alkali waste |
| Footprint | Compact integrated skid | Separate chemical storage required |
Frequently Asked Questions
EDI Technical AnswersCan EDI directly treat tap water?
No. EDI requires low-conductivity RO permeate. Double-pass RO is normally used to protect the module and maintain stable resistivity.
Does EDI require chemical regeneration?
No. It uses electricity, ion-exchange resin and ion-selective membranes for continuous deionization without routine acid/alkali regeneration.
Can EDI alone produce stable 18.2 MΩ·cm water?
Usually not. Stable 18.2 MΩ·cm water normally requires polishing treatment and a properly designed ultrapure-water recirculation loop.
Why control carbon dioxide?
Dissolved CO₂ increases EDI ionic load and can reduce outlet resistivity. Degassing or pH adjustment may be required.
Can the system run continuously?
Yes. EDI performs best under stable continuous operation. Storage and recirculation are recommended for variable point-of-use demand.
Do you provide installation services?
Yes. Factory testing, installation guidance, commissioning and operator training are available for overseas projects.
Information Required for Quotation
Project InputGet an Accurate RO + EDI Design
Provide the information below so our engineers can confirm pretreatment, membrane projection, EDI sizing, sanitary materials and distribution-loop requirements.
Complete raw-water analysis
Raw-water source
Required capacity and flow profile
Target resistivity or conductivity
TOC and microbial limits
Final application and industry
Daily operating hours
Local voltage and frequency
Preferred RO and EDI brands
Tank and piping standards
Distribution-loop requirements
Sanitization and validation needs
Available installation space
Project location and port
Installation and commissioning needs
Planning a 1m³/h Ultrapure Water Project?
Send your water analysis and target water standard for a customized RO + EDI proposal.
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