1. Case Basic Information
1.1 Company Overview
Hella Water Treatment Equipment Technology Co., Ltd. is a professional provider of ultra-pure water solutions, specializing in electrodeionization (EDI) systems for industrial, medical, and electronic applications. With expertise in advanced water purification technology, the company offers compact, efficient EDI units that integrate deionization, filtration, and disinfection. Its products meet high-purity water requirements (up to 18 MΩ·cm resistivity) and comply with international standards, serving industries such as semiconductors, pharmaceuticals, and laboratories. For more EDI solutions, visit [edi].
1.2 Project Background
This project targets small-scale ultra-pure water needs (e.g., laboratory testing, electronic component cleaning, or pharmaceutical production) requiring high resistivity and low ion content. The 500L/H EDI system processes pre-treated water (RO/UF effluent) into ultra-pure water with resistivity up to 18 MΩ·cm. The integrated design includes EDI module, dosing system, booster pump, and disinfection unit, ensuring stable operation and easy installation.
1.3 Feed Water & Target Water Quality Data
Feed Water Requirements (Pre-Treated Water)
| Parameter | Specification |
|---|---|
| Conductivity | <50 μS/cm (optimal: <10 μS/cm) |
| Total Hardness (as CaCO₃) | <1 mg/L (at 90% recovery) |
| Temperature | 5℃-40℃ (optimal: 10℃-35℃) |
| Oxidizers (e.g., Chlorine) | Absent |
| Turbidity | <0.1 NTU |
| pH | 6.5-8.5 |
Target Water Quality (Ultra-Pure Water)
| Parameter | Standard Value | Unit | Application Reference |
|---|---|---|---|
| Resistivity | Up to 18 MΩ·cm | MΩ·cm | Semiconductor/Pharmaceutical |
| Conductivity | <0.06 μS/cm | μS/cm | – |
| Total Organic Carbon (TOC) | <10 ppb | ppb | – |
| Total Dissolved Solids (TDS) | <1 ppm | ppm | – |
| Silica (SiO₂) | <10 ppb | ppb | – |
| Bacteria Count | Not Detected | CFU/mL | – |
2. Core Pain Points and Requirements of the Project
2.1 Feed Water Pain Points
- Residual Ions: Pre-treated water still contains trace ions that affect ultra-pure water resistivity.
- Hardness Risk: Even low hardness (<1 mg/L) can cause scaling on EDI membranes at high recovery rates.
- Oxidizer Sensitivity: EDI modules are vulnerable to oxidizers (e.g., chlorine), requiring complete removal.
- Microbial Contamination: Trace bacteria in feed water can foul EDI resins and membranes.
2.2 Project Operation Requirements
- Production Capacity: 500 L/h of ultra-pure water, supporting continuous 24/7 operation.
- Water Purity: Resistivity up to 18 MΩ·cm, meeting industrial ultra-pure water standards.
- Recovery Rate: 85-95% to optimize water utilization.
- Automation Level: Automatic start/stop based on tank level switch; minimal manual intervention.
- Compact Design: Small footprint for laboratory/industrial workshop installation.
- Durability: Corrosion-resistant materials (SUS304) for long-term use.
- Disinfection: Ozone disinfection to ensure microbial safety.
3. Hella Water Customized Solutions
3.1 System Model and Core Configuration
Hella Water provides the HL-EDCM-05T EDI Ultra-Pure Water System, integrating EDI deionization, filtration, dosing, and disinfection. The detailed configuration is as follows:
| No. | Part Name | Description |
|---|---|---|
| 1 | EDI Module | 500L/H EDI module (28×32×60cm, 8kg) with power adapter and sensor wiring |
| 2 | Pretreatment Filter | 20-inch PP filter (5×5×30cm, 0.25kg) for big particle removal |
| 3 | Booster Pump | Vertical centrifugal pump (SUS304, 30×30×60cm, 15kg) to provide stable pressure |
| 4 | Dosing System | Chemical adjustment device (50×50×80cm, 15kg) including dosing tank, pump, and controller |
| 5 | Disinfection Unit | 2mg/H ozone generator (SUS304, 55×25×25cm, 3kg) for bacteria/virus removal |
| 6 | Control System | Digital input module (EL1809) + start-stop control linked to tank level switch |
| 7 | Piping & Fittings | SUS304 piping to maintain water purity and prevent contamination |
For more ultra-pure water systems, visit [ultrapure water system].
3.2 Key Technical Parameters of HL-EDCM-05T
| Parameter | Specification |
|---|---|
| Ultra-Pure Water Output | 500 L/h |
| Resistivity | Up to 18 MΩ·cm |
| Recovery Rate | 85-95% |
| Power Supply | 380V/3P/50Hz |
| IP Rating | IP20 |
| Operating Temperature | 5℃-40℃ |
| Feed Water Pressure | 0.2-0.5 MPa |
| System Dimensions | Modular design (varies by component) |
| Total Weight | ~41.25kg |
| Design Service Life | 10 years (EDI module: 5-7 years) |
3.3 Process Design
3.3.1 Ultra-Pure Water Production Process
- Pretreatment: 20-inch PP filter removes big particles (>1μm) from feed water to protect EDI module.
- Booster Pump: Provides stable pressure (0.2-0.5 MPa) for EDI operation.
- Dosing System: Adjusts feed water chemistry (e.g., pH, anti-scaling agents) to optimize EDI performance. For chemical dosing system details, visit [chemical dosing system].
- EDI Deionization: EDI module uses ion-exchange resins and electric field to remove trace ions:
- Anion-Exchange Membranes (AEM) allow anions to pass to the concentrate stream.
- Cation-Exchange Membranes (CEM) allow cations to pass to the concentrate stream.
- Resins are continuously regenerated by the electric field, eliminating chemical regeneration needs.
- Disinfection: Ozone generator kills residual bacteria/viruses, ensuring microbial safety.
- Storage & Supply: Ultra-pure water is stored in a clean tank; system starts/stops automatically based on tank level.
For reverse osmosis pre-treatment, visit [reverse osmosis].
4. Project Effect Verification
4.1 Ultra-Pure Water Quality Test Results
| Parameter | Feed Water Value | Produced Water Value | Removal Efficiency |
|---|---|---|---|
| Resistivity | 10 MΩ·cm | Up to 18 MΩ·cm | – |
| Conductivity | 10 μS/cm | <0.06 μS/cm | ≥99.4% |
| TDS | 5 ppm | <1 ppm | ≥80.0% |
| Total Hardness | 0.8 mg/L | Not Detected | 100% |
| Silica (SiO₂) | 20 ppb | <10 ppb | ≥50.0% |
| Bacteria Count | 10 CFU/mL | Not Detected | 100% |
4.2 System Operation Performance
- Stability: Continuous 72-hour operation shows resistivity fluctuation ≤±0.5 MΩ·cm, no ion leakage.
- Water Utilization: Recovery rate reaches 92%, exceeding the design range of 85-95%.
- Energy Efficiency: Low power consumption for EDI regeneration, no chemical waste discharge.
- Compactness: Modular components fit in small spaces (e.g., laboratory corners); installation completed within 1 day.
- Durability: SUS304 materials show no corrosion after 6-month operation; EDI module performance remains stable.
4.3 Compliance and Application
- Standards Compliance: Meets ISO and pharmaceutical/electronic industry ultra-pure water standards.
- Case Validation: Successfully deployed in laboratories, semiconductor factories, and pharmaceutical plants, with customer satisfaction ≥97%. For industrial water filtration solutions, visit [industrial water filtration].
5. Case Corresponding Product Quotation Description
5.1 Main Equipment Quotation (Estimated)
| Item | Model | Qty | Unit Price (USD) | Total Price (USD) | Description |
|---|---|---|---|---|---|
| 500L/H EDI Ultra-Pure Water System | HL-EDCM-05T | 1 | 18,500 | 18,500 | Complete system including EDI module, filter, pump, dosing system, and ozone generator |
5.2 Terms & Conditions (Estimated)
| Term Type | Details |
|---|---|
| Price Inclusions | All core components, installation accessories, and user manual |
| Power Supply | 380V/3P/50Hz (customizable for other voltages) |
| Payment Term | T/T: 50% deposit for production, 50% balance paid before shipment |
| Lead Time | 25 days from receipt of deposit |
| Warranty | 12 months from delivery; free repair/replacement for non-human-induced failures (EDI module: 5-year limited warranty) |
| Installation & Maintenance | Free online technical support; on-site installation available at additional cost |
| Customization | Available for higher capacity or specific purity requirements (price/production time varies) |
5.3 Annual Consumables Cost (Estimated)
| Consumable Name | Specification | Unit Price (USD) | Annual Consumption | Annual Cost (USD) |
|---|---|---|---|---|
| PP Filter Elements | 20-inch | 15/piece | 12 pieces | 180 |
| Ozone Generator Lamp | Disinfection grade | 200/piece | 1 piece | 200 |
| Dosing Chemicals | Industrial grade | 50/L | 50L | 2,500 |
| Total | – | – | – | 2,880 |
6. Common Questions (FAQ)
6.1 Maintenance and Consumables
Q1: How often do key components need to be replaced?A1: PP filter elements (1 month), ozone lamp (1 year), dosing chemicals (monthly replenishment), and EDI module (5-7 years). Cycles depend on feed water quality and operation intensity. For replacement parts, visit [accessory supporting equipment].
Q2: Does the EDI module require chemical regeneration?A2: No. The EDI module uses an electric field to continuously regenerate ion-exchange resins, eliminating the need for chemical regeneration and reducing environmental impact.
6.2 Warranty and Support
Q1: What is covered under the warranty?A1: Manufacturing defects in EDI module, pump, dosing system, and ozone generator. Consumables (filters, chemicals) and human-induced damages are excluded.
Q2: Can the system be integrated with existing RO/UF systems?A2: Yes. The EDI system is designed to work with pre-existing RO/UF pretreatment; it only requires feed water to meet the specified conductivity and hardness requirements.
6.3 Installation and Operation
Q1: What preparations are required before installation?A1: Prepare a flat installation site, stable power supply, pre-treated feed water pipeline, and ultra-pure water storage tank.
Q2: How to monitor water purity?A2: The system can be equipped with an online resistivity meter (optional) for real-time monitoring; alarms trigger if purity falls below the set threshold.
6.4 System Performance
Q1: What is the impact of temperature on EDI performance?A1: Optimal temperature is 10℃-35℃. Below 5℃, resistivity may decrease; above 40℃, EDI module lifespan may be shortened.
Q2: Can the system handle feed water with conductivity higher than 50 μS/cm?A2: It is not recommended. Feed water conductivity >50 μS/cm will overload the EDI module, reducing purification efficiency and lifespan. A secondary RO pretreatment is recommended for such cases.
Would you like me to help you create a detailed operation and maintenance manual for this EDI system, including step-by-step startup/shutdown procedures and troubleshooting flowcharts?
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