1. Case Basic Information
1.1 Company Overview
Hella Water Treatment Equipment Technology Co., Ltd. is a leading provider of high-performance water treatment solutions, specializing in the R&D, production, and integration of ultra-pure water systems, reverse osmosis (RO), and EDI (Electrodeionization) technologies. The company offers one-stop services for industrial ultra-pure water needs, adhering to international standards such as ISO, CE, and NSF. Its products are widely used in electronics, pharmaceuticals, semiconductors, and other high-precision industries. For more product categories, visit [water treatment product].
1.2 Project Background
This project caters to an industrial scenario (e.g., electronic component manufacturing, pharmaceutical production, or laboratory research) requiring ultra-pure water with extremely low conductivity and impurity content. The system is designed to produce 20m³/h of ultra-pure water through a “double RO + EDI” process, combined with a heating tank for temperature-controlled water supply. It addresses the demand for high-stability, high-purity water to support critical production processes.
1.3 Raw Water Quality Data
Based on typical industrial raw water characteristics and project requirements, the key raw water parameters (design basis) are as follows:
| Parameter | Value Range | Unit |
|---|---|---|
| pH | 6.5-8.5 | pH |
| Conductivity | 500-1000 | μS/cm |
| Total Dissolved Solids (TDS) | 300-800 | mg/L |
| Turbidity | <5 | NTU |
| Total Suspended Solids (TSS) | <10 | mg/L |
| Total Organic Carbon (TOC) | <1.0 | mg/L |
| Free Chlorine | <0.1 | mg/L |
| Iron (Fe) | <0.1 | mg/L |
| Manganese (Mn) | <0.05 | mg/L |
| Silica (SiO₂) | <50 | mg/L |
| SDI (Silt Density Index) | <5 | – |
2. Core Pain Points and Requirements of the Project
2.1 Raw Water Quality Pain Points
- High Impurity Content: Elevated TDS and conductivity indicate excessive dissolved salts, which can cause component damage or product defects in high-precision industries.
- Organic and Microbial Contamination: Residual organic matter and microorganisms pose risks to product purity and process stability.
- Silica and Heavy Metals: Silica, iron, and manganese may form scaling or deposits on equipment and membranes, reducing system efficiency.
- Inconsistent Water Quality: Fluctuations in raw water parameters require a robust system to maintain stable output purity.
2.2 Produced Water Quality Requirements
- Ultra-Purity Indicators: Resistivity ≥18.2 MΩ·cm (25℃), conductivity ≤0.055 μS/cm, meeting electronic or pharmaceutical grade ultra-pure water standards.
- Impurity Removal: TDS ≤0.1 mg/L, silica ≤0.02 mg/L, iron/manganese ≤0.001 mg/L each; bacteria and virus removal rate ≥99.999%.
- Organic Matter Control: TOC ≤0.05 mg/L to avoid process interference.
- Temperature Stability: Heating tank maintains water temperature at 25-40℃ (adjustable) for process compatibility.
- Stability: Water quality fluctuation ≤±1% during continuous operation.
2.3 Project Scale and Operation Requirements
- Output Capacity: Stable production of 20m³/h ultra-pure water, supporting 24/7 continuous operation.
- Automation Level: Fully automatic control (Schneider electrical components) with PLC+human-machine interface; real-time monitoring of resistivity, pressure, flow, and temperature.
- Safety Features: Overload, high/low voltage protection; no automatic restart after power failure; anti-backflow design to prevent cross-contamination.
- Reliability: Design service life of 12-15 years; low maintenance frequency and easy consumable replacement.
- Efficiency: Double RO recovery rate ≥70%; EDI module with low energy consumption and no chemical regeneration.
3. Hella Water Customized Solutions
3.1 System Model and Core Configuration
Hella Water provides the HLUP-20T Double RO + EDI Ultra-Pure Water System (with heating tank), integrating pretreatment, double RO, EDI, post-treatment, and control modules. The detailed configuration is as follows:
| No. | Part Name | Description |
|---|---|---|
| 1 | Pretreatment System | Quartz sand filter + activated carbon filter + precision filter (1μm) |
| 2 | Raw Water Pump | Model ZS65-50-200 (Shimge), SUS304, Q=40m³/h, H=42m, P=9.2kW |
| 3 | First-Stage RO System | 5 fiberglass pressure vessels (8040-5), 25 RO membrane elements (8040 type), desalination rate≥99% |
| 4 | First-Stage High-Pressure Pump | Q=42m³/h, H=140m, P=30kW, with frequency conversion |
| 5 | Second-Stage RO System | 3 fiberglass pressure vessels (8040-5), 15 RO membrane elements (8040 type), desalination rate≥99.5% |
| 6 | Second-Stage High-Pressure Pump | Q=28m³/h, H=140m, P=18kW (Shimge) |
| 7 | EDI System | CP-5800 EDI module, booster pump (CHM20-4, Q=20m³/h, H=35m, P=4kW), 1μm precision filter |
| 8 | Post-Treatment | UV disinfection (254nm wavelength) + nitrogen-sealed pure water tank |
| 9 | Heating Tank | Temperature-controlled heating tank, adjustable temperature 25-40℃ |
| 10 | Control System | Schneider PLC + Chinese human-machine interface, three-level management authority; resistivity meter (0-18.25 MΩ·cm) |
| 11 | Monitoring Instruments | Flow meters (raw water/RO permeate/concentrated water), pressure gauges (1MPa/3MPa), conductivity meter |
| 12 | CIP Cleaning System | Cleaning pump (CHL20-30), 40”15-core precision filter, cleaning tank |
For more details on EDI systems, visit [edi].
3.2 Key Technical Parameters of HLUP-20T
| Parameter | Specification |
|---|---|
| Water Output Capacity | 20 m³/h |
| Operating Temperature | 5℃～50℃ (heating tank: 25-40℃ adjustable) |
| Raw Water Requirements | TDS≤800 mg/L, turbidity≤5 NTU, SDI≤5 |
| Produced Water Resistivity | ≥18.2 MΩ·cm (25℃) |
| Produced Water Conductivity | ≤0.055 μS/cm |
| Total Desalination Rate | ≥99.99% |
| RO Recovery Rate | ≥70% |
| Power Supply | 400V/3P/50Hz |
| Total Installed Power | ~70 kW |
| Design Service Life | 12-15 years |
3.3 Process Design
3.3.1 Pretreatment Process
- Quartz Sand Filter: Removes suspended solids, colloids, and silt; automatic backwashing (15 min backwash + 10 min forward wash every 24 hours); quartz sand replacement cycle 36-48 months.
- Activated Carbon Filter: Adsorbs organic matter, residual chlorine, and odors; protects RO membranes from oxidation; activated carbon replacement cycle 12-18 months.
- Precision Filter (1μm): Captures fine particles to prevent membrane damage; filter element replacement every 2 months.
- Scale Inhibitor Dosing System: Adds antiscalants to prevent RO membrane scaling. For chemical dosing systems, see [chemical dosing system].
3.3.2 Double RO + EDI Core Process
- First-Stage RO: Removes 99% of dissolved salts, organic matter, and microorganisms, reducing TDS to ≤10 mg/L.
- Second-Stage RO: Further reduces TDS to ≤0.5 mg/L, ensuring deep desalination and impurity removal.
- EDI Module: Achieves ultra-pure water purification through continuous electrodeionization, removing residual ions to reach resistivity ≥18.2 MΩ·cm without chemical regeneration.
3.3.3 Post-Treatment and Control
- UV Disinfection: Kills residual bacteria/viruses, ensuring microbial safety.
- Heating Tank: Maintains stable water temperature for process-specific requirements.
- Automatic Control: PLC system enables automatic start/stop, backwashing, and CIP cleaning; real-time monitoring of resistivity and pressure with automatic alarm for abnormalities.
4. Project Effect Verification
4.1 Produced Water Quality Test Results
After treatment by the HLUP-20T system, the ultra-pure water meets the preset requirements, with key indicators as follows:
| Parameter | Raw Water Value Range | Produced Water Value | Unit |
|---|---|---|---|
| Resistivity | – | ≥18.2 | MΩ·cm (25℃) |
| Conductivity | 500-1000 | ≤0.055 | μS/cm |
| TDS | 300-800 | ≤0.1 | mg/L |
| TOC | <1.0 | ≤0.05 | mg/L |
| Silica (SiO₂) | <50 | ≤0.02 | mg/L |
| Iron (Fe) | <0.1 | ≤0.001 | mg/L |
| Manganese (Mn) | <0.05 | ≤0.001 | mg/L |
| Bacteria Removal Rate | – | ≥99.999% | – |
| Temperature (Heating Tank) | – | 25-40 (adjustable) | ℃ |
4.2 System Operation Performance
- Stability: Continuous 72-hour operation test shows resistivity fluctuation ≤±0.5 MΩ·cm, no membrane fouling or pressure spike.
- Efficiency: Double RO + EDI process achieves high desalination efficiency; EDI module operates without chemical regeneration, reducing environmental impact and operating costs.
- Automation Effectiveness: Fully automatic control reduces manual intervention; CIP cleaning system extends membrane lifespan to 3-4 years.
- Temperature Control: Heating tank maintains temperature stability ±1℃, meeting process-specific temperature requirements.
4.3 Compliance and Certifications
- Standards Compliance: The system complies with GB/T 11446.1-2013 (ultra-pure water standards) and ISO 3696 (water for analytical use); components meet ASME/ASTM standards.
- Industry Application: Successfully deployed in electronic manufacturing and pharmaceutical projects, with customer satisfaction ≥98%. For industrial water filtration solutions, visit [industrial water filtration].
5. Case Corresponding Product Quotation Description
5.1 Main Equipment Quotation (EXW Price)
| Item | Model | Qty | Unit Price (USD) | Total Price (USD) | Description |
|---|---|---|---|---|---|
| 10m³/H Double RO+EDI Machine | HLRO-EDI-10T | 2 | 59,560 | 119,120 | Core ultra-pure water production unit (2 units for 20m³/h total output) |
| 10m³/H Heating & Mixing Tank | HLT-10T | 2 | 5,600 | 11,200 | Temperature-controlled heating tank (matching 2 RO+EDI units) |
| Total EXW Amount | – | – | – | 130,320 | Includes complete filters, controller cabinets, and international standard packaging |
Note: The price is based on 400V/3P/50Hz power supply. Customization for other specifications will affect pricing and production time.
5.2 Payment Terms & Logistics
| Term Type | Details |
|---|---|
| Payment Term | T/T (Telegraphic Transfer): 50% deposit for production, 50% balance paid before shipment |
| Lead Time | 20 days from receipt of deposit |
| Packaging | International transportation standard packaging (anti-collision, moisture-proof) |
| Warranty | 12 months from delivery; free repair/replacement for non-human-induced failures (per user manual); lifetime after-sales support |
| Acceptance | Contact Hella Water immediately for damaged goods or quality issues to claim rights |
5.3 Additional Service Quotations
| Service Type | Details | Price (USD) |
|---|---|---|
| On-site Installation & Commissioning | Engineer dispatch, including training for operators | Quoted separately (based on location) |
| Online Support | Free manual books, video guides, and 7×24 online technical support | 0 (Included) |
| Consumables (1-Year Supply) | Filter elements, scale inhibitor, RO membranes | 8,500 |
6. Common Questions (FAQ)
6.1 Maintenance and Consumables
Q1: What is the replacement cycle for key consumables?A1: Precision filter elements (2 months), activated carbon (12-18 months), quartz sand (36-48 months), RO membranes (3-4 years), EDI module (5-7 years). Cycles vary based on raw water quality and usage intensity. For replacement parts, visit [accessory supporting equipment].
Q2: Does the EDI module require chemical regeneration?A2: No. The EDI module uses electrodeionization for continuous ion removal, eliminating the need for chemical regeneration (e.g., acid/base) and reducing operating costs and environmental impact.
6.2 Warranty and After-Sales Service
Q1: What is covered under the 12-month warranty?A1: The warranty includes manufacturing defects in equipment components (pumps, valves, membranes, EDI module, control system). Consumables (filter elements, quartz sand) are excluded. Lifetime after-sales support is provided for technical consultation and maintenance guidance.
Q2: How to handle sudden drops in water resistivity?A2: First check if the RO membranes or EDI module are fouled; perform CIP cleaning if necessary. If the issue persists, contact technical support for remote troubleshooting or on-site inspection.
6.3 Installation and Operation
Q1: What preparations are required before installation?A1: The customer needs to prepare a flat installation site (≥15㎡), stable power supply (400V/3P/50Hz), raw water inlet pipeline, and drainage system. Infrastructure such as water supply and electricity should be in place as per pre-installation guidance.
Q2: Can the heating tank temperature be adjusted?A2: Yes. The heating tank supports temperature adjustment between 25-40℃, with a stability of ±1℃, meeting different process temperature requirements.
6.4 System Performance
Q1: How does the system handle raw water quality fluctuations?A1: The double RO design and adaptive control system adjust operating parameters (e.g., pressure, flow rate) in real-time to compensate for raw water fluctuations, ensuring stable output purity.
Q2: What is the power consumption of the system?A2: The total installed power is approximately 70 kW, with variable frequency pumps reducing energy consumption during low-demand periods. The EDI module operates at low energy consumption, making the overall system energy-efficient.
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