1. Case Basic Information
1.1 Company Overview
Hella Water Treatment Equipment Technology Co., Ltd. is a leading provider of large-scale ultra-pure water solutions, specializing in high-flow electrodeionization (EDI) modules for industrial applications. With expertise in advanced deionization technology, the company offers integrated EDI systems that deliver ultra-pure water with resistivity up to 18.25 MΩ·cm. Its products comply with international standards and are widely used in industries such as semiconductors, pharmaceuticals, power generation, and electronics manufacturing. For more EDI solutions, visit [edi].
1.2 Project Background
This project targets large-scale ultra-pure water needs (e.g., industrial production lines, power plants, or pharmaceutical facilities) requiring deep deionization of pre-treated water. The 25m³/H EDI module (Model: HL-EDICM-25T) consists of 5×5m³/H purification modules, integrated with a booster pump and controller cabinet. The 3-phase power supply (340V/60Hz) and high recovery rate (85-95%) make it suitable for continuous industrial operation, providing stable ultra-pure water for critical processes.
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 |
| pH | 6.5-8.5 |
| Turbidity | <0.1 NTU |
Target Water Quality (Ultra-Pure Water)
| Parameter | Standard Value | Unit | Application Reference |
|---|---|---|---|
| Resistivity | Up to 18.25 MΩ·cm | MΩ·cm | Semiconductor/Power Generation |
| Conductivity | <0.055 μS/cm | μS/cm | – |
| Total Dissolved Solids (TDS) | <0.5 ppm | ppm | – |
| Total Organic Carbon (TOC) | <5 ppb | ppb | – |
| Silica (SiO₂) | <5 ppb | ppb | – |
2. Core Pain Points and Requirements of the Project
2.1 Feed Water Pain Points
- Residual Ions: Pre-treated RO/UF water still contains trace ions that limit water resistivity, failing to meet industrial ultra-pure requirements.
- High Flow Demand: Large-scale production requires high-volume ultra-pure water supply (25m³/h) with consistent quality.
- Scaling Risk: Even low hardness (<1 mg/L) can cause scaling on EDI membranes at high recovery rates (85-95%).
- Oxidizer Damage: EDI resins and membranes are vulnerable to oxidizers (e.g., chlorine), requiring complete removal from feed water.
- Operational Stability: Fluctuations in feed water quality or flow rate need to be compensated to maintain ultra-pure water output.
2.2 Project Operation Requirements
- Production Capacity: 25m³/h of ultra-pure water, supporting 24/7 continuous industrial operation.
- Water Purity: Resistivity up to 18.25 MΩ·cm, meeting strict industrial standards.
- Recovery Rate: 85-95% to optimize water utilization and reduce waste.
- Power Supply: 340V/60Hz 3-phase for high-power industrial applications.
- Integration: Equipped with a booster pump (30m³/h, 30m head) and controller cabinet for plug-and-play operation.
- Durability: Corrosion-resistant materials (SUS304 frame, PVC pipeline) for long-term industrial use.
- Automation: Start-stop control linked to tank level switch; real-time pressure monitoring and fault alarms.
3. Hella Water Customized Solutions
3.1 Module Model and Core Configuration
Hella Water provides the HL-EDICM-25T 25m³/H EDI Module System, integrating 5 independent EDI modules, a booster pump, and a centralized controller cabinet. The detailed configuration is as follows:
| No. | Part Name | Description |
|---|---|---|
| 1 | EDI Core Modules | 5×5m³/H purification modules (each with anion/cation exchange membranes and ion-exchange resins) |
| 2 | Booster Pump | Vertical centrifugal pump (Q=30m³/h, H=30m) for stable feed water pressure |
| 3 | Power Supply System | Power adapter, sensor wiring, and load wiring (340V/60Hz 3-phase) |
| 4 | Central Controller Cabinet | Pressure monitoring, relay control, digital input module (EL1809), and fault alarm system |
| 5 | Piping & Frame | PVC pipeline (corrosion-resistant) + SUS304 frame (stable support for industrial environment) |
| 6 | Safety Components | Overload protection, low water level shutdown, and pressure relief valve |
For more ultra-pure water systems, visit [ultrapure water system].
3.2 Key Technical Parameters of HL-EDICM-25T
| Parameter | Specification |
|---|---|
| Ultra-Pure Water Output | 25m³/h (5×5m³/h modules in parallel) |
| Resistivity | Up to 18.25 MΩ·cm |
| Recovery Rate | 85-95% |
| Operating Voltage | 340V 60Hz 3-phase |
| IP Rating | IP20 |
| Operating Temperature | 5℃-40℃ |
| Operating Pressure | 0.2-0.5 MPa |
| Booster Pump Parameters | Q=30m³/h, H=30m |
| I/O Modules | Digital Input (EL1809) |
| Control Functions | Tank level switch-linked start-stop, pressure monitoring, fault alarm |
| Frame Material | SUS304 |
| Piping Material | PVC |
| Design Service Life | 8-10 years (resin regeneration-free) |
3.3 Working Principle and System Integration
3.3.1 EDI Deionization Principle
- Each EDI module integrates anion-exchange membranes (AEM), cation-exchange membranes (CEM), and ion-exchange resins.
- An electric field is applied to each module: cations pass through CEM to the concentrate stream, while anions pass through AEM to the concentrate stream.
- Ion-exchange resins are continuously regenerated by the electric field, eliminating the need for chemical regeneration and reducing environmental impact.
- Parallel configuration of 5 modules ensures high flow capacity (25m³/h) and redundancy—if one module requires maintenance, the others continue operating.
3.3.2 Industrial Integration Process
Pre-Treated Water (RO/UF Effluent) → Booster Pump → EDI Module System (5×5m³/h) → Ultra-Pure Water Storage Tank → Industrial Production Line→ Concentrate Stream → Discharge/Treatment
For reverse osmosis pre-treatment systems, 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 18.25 MΩ·cm | – |
| Conductivity | 10 μS/cm | <0.055 μS/cm | ≥99.45% |
| TDS | 5 ppm | <0.5 ppm | ≥90.0% |
| Total Hardness | 0.8 mg/L | Not Detected | 100% |
| Silica (SiO₂) | 15 ppb | <5 ppb | ≥66.7% |
4.2 System Operation Performance
- Purity Stability: Continuous 100-hour industrial operation shows resistivity fluctuation ≤±0.2 MΩ·cm, no ion leakage.
- Flow Capacity: Stable output of 25m³/h, with the booster pump ensuring consistent feed water pressure (0.3-0.4 MPa).
- Energy Efficiency: Low power consumption for electric regeneration; no chemical waste discharge, reducing environmental impact.
- Redundancy: Parallel module design ensures ≥95% operational availability—single module maintenance does not interrupt production.
- Durability: SUS304 frame and PVC pipeline withstand industrial environments; no corrosion or performance degradation after 6-month operation.
- Recovery Efficiency: Recovery rate reaches 93%, optimizing water utilization for large-scale industrial use.
4.3 Compliance and Application
- Standards Compliance: Meets ISO, SEMI, and pharmaceutical GMP standards for ultra-pure water.
- Case Validation: Successfully deployed in power plants, semiconductor factories, and pharmaceutical facilities globally, with customer satisfaction ≥98%. For industrial water filtration solutions, visit [industrial water filtration].
5. Case Corresponding Product Quotation Description
5.1 System Quotation (Estimated)
| Item | Model | Qty | Unit Price (USD) | Total Price (USD) | Description |
|---|---|---|---|---|---|
| 25m³/H EDI Module System | HL-EDICM-25T | 1 | 185,000 | 185,000 | Includes 5×5m³/h EDI modules, booster pump, controller cabinet, piping, and frame |
5.2 Terms & Conditions (Estimated)
| Term Type | Details |
|---|---|
| Price Inclusions | Complete EDI system, booster pump, controller cabinet, and installation accessories |
| Power Supply | 340V/60Hz 3-phase (customizable for other voltages/frequencies) |
| Payment Term | T/T: 50% deposit for production, 50% balance paid before shipment |
| Lead Time | 35 days from receipt of deposit |
| Warranty | 24 months from delivery; free repair/replacement for non-human-induced failures |
| Installation & Maintenance | Free online technical support; on-site installation and training available at additional cost |
| Customization | Available for higher flow capacity or specific purity requirements (price/production time varies) |
5.3 Annual Operating Cost (Estimated)
| Item | Specification | Annual Cost (USD) |
|---|---|---|
| Electricity Consumption | 5kW × 8,000 hours/year × USD0.15/kWh | ~6,000 |
| Routine Inspection & Calibration | Professional industrial maintenance service | ~2,500 |
| Booster Pump Maintenance | Filter replacement, lubrication | ~800 |
| Total Annual Operating Cost | – | ~9,300 |
Note: No consumables required due to continuous resin regeneration by the electric field.
6. Common Questions (FAQ)
6.1 Installation and Integration
Q1: How much space is required for the 25m³/h EDI system?A1: The system’s compact design (SUS304 frame) requires a flat area of approximately 3×2m, suitable for standard industrial workshops.
Q2: Can the system be integrated with existing RO/UF pre-treatment?A2: Yes. The system is designed to connect directly to RO/UF effluent, provided the feed water meets the specified conductivity, hardness, and oxidizer requirements.
6.2 Operation and Maintenance
Q1: Does the system require chemical regeneration?A1: No. The EDI modules use electric field regeneration of ion-exchange resins, eliminating the need for chemical agents and reducing operational complexity.
Q2: How to handle module maintenance?A2: The parallel module design allows individual modules to be isolated for maintenance without stopping the entire system. Routine checks (quarterly) include pressure monitoring and electrical connection inspections.
6.3 Warranty and Support
Q1: What is covered under the 24-month warranty?A1: Manufacturing defects in EDI modules, booster pump, controller cabinet, and power supply. Damage from improper installation or non-compliant feed water is excluded.
Q2: What should I do if resistivity drops suddenly?A2: Check feed water quality (conductivity, hardness, oxidizers) first; inspect the booster pump for pressure fluctuations; contact technical support for module performance testing if issues persist.
6.4 Performance and Compatibility
Q1: What is the impact of temperature on system performance?A1: Optimal temperature is 10℃-35℃. Below 5℃, resistivity may decrease slightly; above 40℃, the system automatically triggers overheating protection to prevent module damage.
Q2: Can the system adjust flow rate based on production needs?A2: Yes. The controller cabinet supports flow rate adjustment within 15-25m³/h, and the tank level switch enables automatic start-stop to match production demand.
Would you like me to help you create a detailed industrial operation manual for this EDI system, including step-by-step startup/shutdown procedures and troubleshooting flowcharts for common industrial scenarios?
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