1. Case Basic Information
1.1 Company Overview
Hella Water Treatment Equipment Technology Co., Ltd. is a professional provider of high-performance reverse osmosis (RO) water purification solutions, specializing in industrial and commercial water treatment projects. With over 20 years of experience, the company adheres to international standards (ISO 9001, GMP) and offers end-to-end services from design to after-sales support. Its products are widely used for boiler feed water, drinking water, and industrial production water globally. For more RO systems, visit [reverse osmosis].
1.2 Project Background
This project is located in Thailand, designed to supply high-purity water for boiler operations and potential drinking water use. The raw water has moderate TDS, turbidity, and total hardness, requiring RO technology to achieve deep desalination and purification. The system treats 100m³/h of raw water to produce 50m³/h of qualified water, with a design service life of 12 years, meeting the local agent’s water quality and operational requirements.
1.3 Raw Water & Target Water Quality Data
Raw Water Quality
| Parameter | Test Value | Unit |
|---|---|---|
| pH | 6.5 | pH |
| Turbidity | 3.7 | NTU |
| Total Dissolved Solids (TDS) | 75 | mg/L |
| Total Hardness (as CaCO₃) | 30.4 | mg CaCO₃/L |
| Chlorides (Cl⁻) | 4 | mg/L |
| Sulfates (SO₄²⁻) | 2 | mg/L |
| Nitrate (NO₃⁻) | 0.3 | mg/L |
| Fluoride (F⁻) | 0.08 | mg/L |
| Total Coliforms | 9.3×10⁴ | CFU/mL |
| Iron (Fe) | <0.100 | mg/L |
| Lead (Pb) | <0.005 | mg/L |
| Cadmium (Cd) | <0.003 | mg/L |
Target Water Quality
| Parameter | Standard Value | Unit | Application Scenario |
|---|---|---|---|
| pH | 7.0-10.0 | pH | Boiler feed water (corrosion prevention) |
| Turbidity | ≤1.0 | NTU | Prevent scaling in boilers |
| TDS | ≤10 | mg/L | High-pressure boiler use |
| Total Hardness | ≤1.0 | mg CaCO₃/L | Soft water requirement |
| Chlorides (Cl⁻) | ≤20 | mg/L | Corrosion prevention |
| Sulfates (SO₄²⁻) | ≤50 | mg/L | Prevent scaling |
| Total Coliforms | Not Detected | CFU/mL | Microbial safety |
| E. coli | Not Detected | CFU/100mL | Drinking water compliant |
2. Core Pain Points and Requirements of the Project
2.1 Raw Water Quality Pain Points
- Turbidity and Suspended Solids: Turbidity (3.7 NTU) may cause boiler scaling and RO membrane fouling.
- Microbial Contamination: High total coliforms (9.3×10⁴ CFU/mL) pose health risks for drinking water and boiler water safety.
- Hardness and TDS: Moderate total hardness (30.4 mg CaCO₃/L) and TDS (75 mg/L) require reduction to avoid boiler scaling and corrosion.
- pH Imbalance: Raw water pH (6.5) is below the optimal range (7.0-10.0) for boiler feed water, requiring adjustment to prevent corrosion.
2.2 Project Operation Requirements
- Output Capacity: 50 m³/h purified water, with raw water inlet capacity 100 m³/h (recovery rate ≥35%).
- Desalination Performance: Desalination rate ≥99% (first year) to achieve TDS ≤10 mg/L.
- Automation Level: Fully automatic PLC control with real-time monitoring (pressure, flow, TDS) and automatic cleaning.
- Safety & Compliance: Meet Thai industrial water standards, boiler feed water requirements, and drinking water microbial standards.
- Durability: Corrosion-resistant materials (stainless steel, FRP) to adapt to Thailand’s tropical climate (operating temperature 5℃-50℃).
- Maintenance: Easy-to-replace consumables and local after-sales support via the Thai agent.
3. Hella Water Customized Solutions
3.1 System Model and Core Configuration
Hella Water provides the HLRO-50T Reverse Osmosis System, integrating pretreatment, RO desalination, disinfection, and control modules. The detailed configuration is as follows:
| No. | Part Name | Description |
|---|---|---|
| 1 | Raw Water System | Raw water pump (ZS80-65-160, SS material, Q=100m³/h), check valve DN65, 1MPa pressure gauge |
| 2 | Pretreatment System | Multi-media filter (2 sets, Ф2200mm FRP tanks) + water softening system + 1μm precision filter |
| 3 | Disinfection System | Chemical dosing system (200L PE tank, bactericide) + optional UV sterilizer |
| 4 | RO Desalination System | High-pressure pump (CDL85-60, SS material), 9 FRP pressure vessels (8040-6), 54 RO membrane elements (8040 type) |
| 5 | Cleaning System | CIP cleaning system (ZS65-50200 cleaning pump, 40″36 precision filter, PE cleaning tank) |
| 6 | Control System | Integrated PLC, touchscreen, TDS monitor, pressure/flow sensors, automatic interlock protection |
| 7 | Pipes and Valves | SS valves (discharge valve DN100, flushing valve), corrosion-resistant pipelines |
For more details on industrial water filtration, visit [industrial water filtration].
3.2 Key Technical Parameters of HLRO-50T
| Parameter | Specification |
|---|---|
| Water Output Capacity | 50 m³/h |
| Raw Water Inlet Capacity | 100 m³/h |
| Desalination Rate | ≥99% (first year) |
| Recovery Rate | ≥35% |
| Operating Pressure | 1.0-1.5 MPa |
| Operating Temperature | 5℃-50℃ |
| pH Range (Operation) | 6.0-9.0 |
| TDS of Produced Water | ≤10 mg/L |
| Design Service Life | 12 years |
| Membrane Replacement Cycle | 3-4 years (depending on raw water quality) |
3.3 Process Design
3.3.1 Pretreatment Process
- Multi-media Filter: Removes suspended solids and turbidity via quartz sand (1500 kg) and activated carbon (500 kg); automatic backwashing.
- Water Softening System: Reduces total hardness to ≤1 mg CaCO₃/L using ion-exchange resin (800 kg).
- Precision Filter (1μm): Captures fine particles to protect RO membranes. For pre-treatment systems, see [pre treatment filtration system].
3.3.2 Core RO Process
- High-Pressure Desalination: High-pressure pump provides 1.0-1.5 MPa pressure to drive RO membranes, removing 99% of dissolved salts, bacteria, and organic matter.
- Membrane Configuration: 54 RO membrane elements (8040 type) in 9 pressure vessels (6 elements each) for efficient desalination.
3.3.3 Disinfection and Control
- Chemical Disinfection: Bactericide dosing system reduces microbial contamination; optional UV sterilizer for drinking water use.
- PLC Control: Automates pump operation, backwashing, CIP cleaning, and alarm responses (high/low pressure, TDS overlimit).
- pH Adjustment: Dosing system optimizes pH to 7.0-10.0 for boiler compatibility. For chemical dosing systems, see [chemical dosing system].
4. Project Effect Verification
4.1 Produced Water Quality Test Results
| Parameter | Raw Water Value | Produced Water Value | Removal Efficiency |
|---|---|---|---|
| TDS | 75 mg/L | ≤10 mg/L | ≥86.7% |
| Turbidity | 3.7 NTU | ≤1.0 NTU | ≥73.0% |
| Total Hardness | 30.4 mg CaCO₃/L | ≤1.0 mg CaCO₃/L | ≥96.7% |
| Total Coliforms | 9.3×10⁴ CFU/mL | Not Detected | 100% |
| pH | 6.5 | 7.0-10.0 | – |
| Chlorides | 4 mg/L | ≤2 mg/L | ≥50.0% |
4.2 System Operation Performance
- Stability: Continuous 72-hour operation shows water output fluctuation ≤±2%, TDS stable at ≤8 mg/L.
- Recovery Efficiency: Recovery rate reaches 38%, exceeding the design requirement of ≥35%.
- Microbial Safety: Meets Thai drinking water standards (no coliforms or E. coli detected).
- Energy Efficiency: Operating power ~75 kW, energy consumption ~1.5 kWh/m³ of purified water.
- Durability: Corrosion-resistant components pass 6-month tropical climate testing in Thailand.
4.3 Compliance and Application
- Standards Compliance: Meets Thai industrial boiler feed water standards and ISO 9001 quality management requirements.
- Case Validation: Successfully deployed in Thai industrial boiler projects, reducing maintenance costs by 18% and improving boiler efficiency by 10%. For commercial water filter applications, visit [commercial water filter].
5. Case Corresponding Product Quotation Description
5.1 Main Equipment Quotation (Estimated)
| Item | Model | Qty | Unit Price (USD) | Total Price (USD) | Description |
|---|---|---|---|---|---|
| Raw Water Pump & Pretreatment | – | 1 | 28,500 | 28,500 | Multi-media filter, softening system, precision filter |
| 50m³/h RO System | HLRO-50T | 1 | 68,200 | 68,200 | High-pressure pump, 54 RO membranes, 9 pressure vessels |
| CIP Cleaning System | – | 1 | 12,800 | 12,800 | Cleaning pump, tank, filter |
| Control & Disinfection | – | 1 | 16,500 | 16,500 | PLC, TDS monitor, chemical dosing system, optional UV sterilizer |
| Total Estimated EXW Price | – | – | – | 126,000 | Excludes transportation, installation, and local taxes |
5.2 Payment Terms & Logistics
| Term Type | Details |
|---|---|
| Payment Term | T/T: 50% deposit for production, 50% balance paid before shipment |
| Lead Time | 25 days from receipt of deposit |
| Packaging | International standard packaging (anti-collision, moisture-proof) |
| Warranty | 12 months (free repair/replacement for non-human failures) |
| After-Sales Support | Local service via Thai agent; free online technical support for life |
5.3 Annual Consumables Cost (Estimated)
| Consumable Name | Specification | Unit Price (USD) | Annual Consumption | Annual Cost (USD) |
|---|---|---|---|---|
| Precision Filter Elements (1μm) | 40”50 core | 45/piece | 12 pieces | 540 |
| RO Membranes (8040 type) | High desalination | 850/piece | 10 pieces | 8,500 |
| Bactericide/Chemicals | Industrial grade | 1.2/kg | 800 kg | 960 |
| Ion-Exchange Resin | Softening resin | 2.8/kg | 500 kg | 1,400 |
| Total | – | – | – | 11,400 |
6. Common Questions (FAQ)
6.1 Maintenance and Consumables
Q1: How often should RO membranes and filter elements be replaced?A1: RO membranes (3-4 years), precision filter elements (3-6 months), ion-exchange resin (2-3 years). Cycles depend on raw water quality. For replacement parts, visit [accessory supporting equipment].
Q2: What is the CIP cleaning frequency?A2: Recommended every 3-6 months. Use acid for inorganic fouling and alkaline cleaners for organic fouling.
6.2 Warranty and Support
Q1: What does the warranty cover?A1: 12 months for equipment defects (pumps, membranes, controls). Consumables (filters, chemicals) are excluded. Local support is provided via the Thai agent.
Q2: Can the system be upgraded for higher capacity?A2: Yes. The modular design allows adding RO modules to increase capacity (e.g., 100m³/h) based on future needs.
6.3 Installation and Operation
Q1: What preparations are required in Thailand?A1: Prepare a flat installation site (≥50㎡), stable power supply (380V/50Hz 3-phase), and raw water/purified water pipelines.
Q2: How to handle power outages?A2: The system shuts down automatically and requires manual restart to protect equipment. Optional UPS backup is available for critical applications.
6.4 System Performance
Q1: Can the system adapt to raw water quality changes?A1: Yes. The PLC adjusts dosing and pump speed to handle fluctuations in turbidity and TDS.
Q2: Is the produced water suitable for drinking?A2: Yes, with the optional UV sterilizer, the water meets Thai drinking water standards (no coliforms, TDS ≤10 mg/L).
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