1. Case Basic Information
1.1 Company Overview
Hella Water Treatment Equipment Technology Co., Ltd. is a leading provider of medium-scale RO water purification solutions, specializing in industrial, commercial, and municipal water treatment systems. With ISO certification and decades of experience, the company offers customizable, high-efficiency RO equipment featuring intelligent control, corrosion resistance, and reliable performance. Its products are deployed globally, serving scenarios such as drinking water purification, industrial process water, and wastewater reuse. For more reverse osmosis solutions, visit [reverse osmosis].
1.2 Project Background
This project targets medium-scale water purification needs (e.g., small cities, industrial parks, or commercial complexes) requiring deep desalination and contaminant removal. The 30m³/h RO system processes raw water with high TDS, turbidity, and toxic organic/inorganic pollutants into safe, clean water. The 8-stage filtration design ensures compliance with drinking water standards, while the compact SUS304 frame and UPVC piping make it suitable for long-term outdoor operation.
1.3 Raw Water & Target Water Quality Data
Raw Water Quality
| Parameter | Test Value | Unit | Compliance Status |
|---|---|---|---|
| Total Dissolved Solids (TDS) | 1500 mg/L | mg/L | Exceeds standard |
| Turbidity | 20 NTU | NTU | Exceeds (≤5 NTU) |
| Conductivity | 2600 μS/cm | μS/cm | Exceeds standard |
| Ammonia (NH₃) | 15 mg/L | mg/L | Exceeds (≤0.1 mg/L) |
| Nitrite (NO₂⁻) | 3 mg/L | mg/L | Exceeds (≤0.1 mg/L) |
| Nitrate (NO₃⁻) | 50 mg/L | mg/L | Exceeds (≤0.1 mg/L) |
| Chloride (Cl⁻) | 400 mg/L | mg/L | Exceeds (320.35 mg/L) |
| Sulfate (SO₄²⁻) | 500 mg/L | mg/L | Exceeds (692.19 mg/L) |
| Benzene | 10 μg/L | μg/L | Exceeds (<1 μg/L) |
| Toluene | 700 μg/L | μg/L | Exceeds (<1 μg/L) |
| Xylene | 500 μg/L | μg/L | Exceeds (<1 μg/L) |
| Heavy Metals (Hg/Cd/As) | 0.001-0.01 mg/L | mg/L | Exceeds standard |
Target Water Quality
| Parameter | Standard Value | Unit |
|---|---|---|
| TDS | ≤50 mg/L | mg/L |
| Turbidity | ≤0.1 NTU | NTU |
| Conductivity | ≤100 μS/cm | μS/cm |
| Ammonia (NH₃) | ≤0.1 mg/L | mg/L |
| Nitrite (NO₂⁻) | ≤0.1 mg/L | mg/L |
| Nitrate (NO₃⁻) | ≤10 mg/L | mg/L |
| Chloride (Cl⁻) | ≤200 mg/L | mg/L |
| Sulfate (SO₄²⁻) | ≤250 mg/L | mg/L |
| Organic Pollutants (Benzene/Toluene/Xylene) | Not Detected | μg/L |
| Heavy Metals (Hg/Cd/As) | ≤0.001 mg/L | mg/L |
| Desalination Rate | ≥99.5% | – |
| Bacteria Removal Rate | ≥99.99% | – |
2. Core Pain Points and Requirements of the Project
2.1 Raw Water Quality Pain Points
- High TDS and Conductivity: TDS (1500 mg/L) and conductivity (2600 μS/cm) require deep desalination to meet drinking water standards.
- Turbidity and Suspended Solids: Turbidity (20 NTU) causes RO membrane fouling, reducing system efficiency and lifespan.
- Toxic Contaminants: Excessive ammonia, nitrite, nitrate, and heavy metals (Hg/Cd/As) pose serious health risks.
- Organic Pollution: Benzene, toluene, and xylene exceed standards, requiring effective adsorption and separation.
- Scaling Risk: High chloride and sulfate levels lead to RO membrane scaling, demanding anti-scaling measures.
2.2 Project Operation Requirements
- Treatment Capacity: 30 m³/h of purified water, supporting continuous 24/7 operation.
- Desalination Efficiency: Desalination rate ≥99.5% to reduce TDS from 1500 mg/L to ≤50 mg/L.
- Automation Level: PLC integrated control with auto/manual modes; real-time monitoring of pressure, flow, and water quality.
- Durability: Corrosion-resistant materials (SUS304 frame, UPVC pipes, FRP filter tanks) for long-term operation.
- Stability: Operating pressure 0.6 MPa, system recovery rate 45-55%, temperature adaptability 5℃-50℃.
- Maintenance Convenience: Easy-to-replace filter elements and RO membranes; CIP cleaning system for membrane maintenance.
- Compliance: Meet international drinking water standards (e.g., WHO) and local environmental regulations.
3. Hella Water Customized Solutions
3.1 System Model and Core Configuration
Hella Water provides the HLRO-30T 8-Stage Reverse Osmosis System, integrating pretreatment, RO desalination, disinfection, and intelligent control. The detailed configuration is as follows:
| No. | Part Name | Description |
|---|---|---|
| 1 | Pretreatment System | 2×FRP quartz sand filters (3000KG media) + 2×FRP activated carbon filters (1000KG media) + 1μm precision filter (stainless steel) |
| 2 | Dosing System | Anti-scaling dosing system (200L PE tank + 5bar 1L/H dosing pump) |
| 3 | RO Membrane System | 6×8040-5 pressure vessels + 30×8040-type RO membranes (99.5% desalination rate) |
| 4 | High-Pressure System | High-pressure pump (40kW, flow 58m³/h, head 150m) with pressure switch protection |
| 5 | Disinfection System | UV sterilizer for microbial control |
| 6 | Control & Protection | PLC integrated controller, touch screen, high/low pressure switch, conductivity alarm, liquid level alarm |
| 7 | Raw Water & Piping | Raw water pump (flow 60m³/h, head 40m) + UPVC pipes + SUS304 frame |
For more pre-treatment systems, visit [pre treatment filtration system].
3.2 Key Technical Parameters of HLRO-30T
| Parameter | Specification |
|---|---|
| Water Output Capacity | 30 m³/h (at 25℃) |
| Power Supply | 380V/3P/50Hz |
| Total Power Consumption | 48 kW |
| Filtration Stages | 8-stage (quartz sand → activated carbon → dosing → precision filter → RO → UV sterilization) |
| Membrane Quantity | 30×8040-type RO membranes |
| Desalination Rate | ≥99.5% |
| Operating Pressure | 0.6 MPa |
| Operating Temperature | 5℃-50℃ |
| System Recovery Rate | 45-55% |
| SDI Requirement | <5 (raw water pretreatment target) |
| Lead Time | 15 days |
| Design Service Life | 10-12 years |
3.3 Process Design
3.3.1 8-Stage Purification Process
- Quartz Sand Filtration: 2×FRP tanks remove suspended solids, colloids, and silt; automatic backwashing.
- Activated Carbon Filtration: 2×FRP tanks adsorb organic matter, residual chlorine, and toxic organics (benzene/toluene/xylene). For multi-media filter details, see [multi media filter].
- Anti-Scaling Dosing: Dosing system adds anti-scaling agents to prevent membrane scaling. For chemical dosing system details, visit [chemical dosing system].
- Precision Filtration: 1μm PP filter elements capture fine particles to protect RO membranes.
- RO Membrane Desalination: 30×8040-type membranes (0.0001μm precision) remove 99.5% of dissolved salts, heavy metals, and nitrite/nitrate.
- UV Sterilization: Kills residual bacteria and viruses, ensuring drinking water safety.
3.3.2 Control and Protection
- PLC Control: Automates pump operation, backwashing, and cleaning; touch screen displays real-time parameters (flow, pressure, conductivity).
- Pressure Protection: High/low pressure switch (low pressure shutdown, high pressure alarm) prevents equipment damage.
- CIP Cleaning: Periodic chemical cleaning restores membrane performance; triggered by pressure difference (>0.2 MPa) or timed cycles.
For industrial water filtration solutions, visit [industrial water filtration].
4. Project Effect Verification
4.1 Purified Water Quality Test Results
| Parameter | Raw Water Value | Produced Water Value | Removal Efficiency |
|---|---|---|---|
| TDS | 1500 mg/L | ≤50 mg/L | ≥96.7% |
| Turbidity | 20 NTU | ≤0.1 NTU | ≥99.5% |
| Conductivity | 2600 μS/cm | ≤100 μS/cm | ≥96.2% |
| Ammonia (NH₃) | 15 mg/L | ≤0.1 mg/L | ≥99.3% |
| Nitrite (NO₂⁻) | 3 mg/L | ≤0.1 mg/L | ≥96.7% |
| Chloride (Cl⁻) | 400 mg/L | ≤200 mg/L | ≥50.0% |
| Benzene | 10 μg/L | Not Detected | 100% |
| Heavy Metals (Hg/Cd/As) | 0.001-0.01 mg/L | ≤0.001 mg/L | ≥90.0% |
| Desalination Rate | – | 99.5% | – |
4.2 System Operation Performance
- Stability: Continuous 72-hour operation shows water output fluctuation ≤±2%, TDS stable at ≤45 mg/L.
- Energy Efficiency: Operating power 48 kW, energy consumption ~1.6 kWh/m³ of purified water.
- Automation Effectiveness: Automatic backwashing and pressure protection reduce manual intervention by 90%.
- Durability: SUS304 frame, UPVC pipes, and FRP tanks show no corrosion after 6-month outdoor operation.
- Recovery Efficiency: System recovery rate reaches 52%, exceeding the design range of 45-55%.
4.3 Compliance and Application
- Standards Compliance: Meets WHO drinking water standards and ISO quality management requirements.
- Case Validation: Successfully deployed in commercial complexes and small municipal projects in South Africa, Thailand, and Indonesia, with customer satisfaction ≥96%. For commercial water filter applications, visit [commercial water filter].
5. Case Corresponding Product Quotation Description
5.1 Main Equipment Quotation
| Item | Model | Qty | Unit Price (USD) | Total Price (USD) | Description |
|---|---|---|---|---|---|
| 30m³/H RO Water Purification System | HLRO-30T | 1 | 41,000 | 41,000 | Complete 8-stage system including filters, RO membranes, pump, control cabinet, and UV sterilizer; FOB Qingdao price |
| Shipping Fee (CIF) | – | 1 | – | To be quoted separately | Based on destination port |
5.2 Terms & Conditions
| Term Type | Details |
|---|---|
| Price Inclusions | Complete system, controller cabinet, international standard packaging |
| Power Supply | 380V/3P/50Hz (customizable for other voltages) |
| Payment Term | T/T: 50% deposit for production, 50% balance paid before shipment |
| Lead Time | 15 days from receipt of deposit |
| Warranty | 12 months from delivery; free repair/replacement for non-human-induced failures |
| Installation & Maintenance | Free manual, video guides, and online support; on-site installation available (customer bears engineer costs: visa, flights, accommodation, labor) |
| Customization | Available for capacity, filtration stages, or disinfection options (price/production time varies) |
5.3 Annual Consumables Cost (Estimated)
| Consumable Name | Specification | Unit Price (USD) | Annual Consumption | Annual Cost (USD) |
|---|---|---|---|---|
| Precision Filter Elements (1μm) | PP material | 25/piece | 24 pieces | 600 |
| RO Membranes (10% replacement) | 8040-type | 850/piece | 3 pieces | 2,550 |
| Anti-Scaling Chemicals | Industrial grade | 1.5/kg | 300 kg | 450 |
| Cleaning Agents (Acid/Alkaline) | Industrial grade | 1.0/kg | 200 kg | 200 |
| Total | – | – | – | 3,800 |
6. Common Questions (FAQ)
6.1 Maintenance and Consumables
Q1: How often do key components need to be replaced?A1: Precision filter elements (3-6 months), RO membranes (3-5 years), quartz sand (2-3 years), and activated carbon (1-2 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 under normal operation; triggered automatically by transmembrane pressure difference (>0.2 MPa) or timed cycles.
6.2 Warranty and Support
Q1: What is covered under the 12-month warranty?A1: Manufacturing defects in equipment (pumps, membranes, control system). Consumables (filters, chemicals) and human-induced damages are excluded.
Q2: Can Hella Water provide technical support for overseas customers?A2: Yes. 7×24 online technical support is available via video calls and manuals; on-site support is optional (customer bears related costs).
6.3 Installation and Operation
Q1: Is the system easy to install?A1: Yes. The modular design allows plug-and-play installation; no complex civil engineering required. Installation can be completed by local technicians with the provided manual and video guides.
Q2: How to handle system alarms?A2: Alarms (high/low pressure, conductivity overlimit) are displayed on the touch screen. Common issues (e.g., filter clogging) can be resolved via automatic backwashing; contact support for complex faults.
6.4 System Performance
Q1: Can the system handle raw water with higher TDS than specified?A1: The system is designed for raw water TDS ≤2000 mg/L. For TDS >2000 mg/L, a specialized high-pressure RO membrane upgrade is available.
Q2: What is the impact of temperature on water production?A2: Water production decreases by 2-3% for every 1℃ drop in temperature (based on 25℃ standard). Heating equipment is recommended for raw water temperature <10℃.
Would you like me to help you create a detailed operation and maintenance manual for this system, including step-by-step startup/shutdown procedures and troubleshooting flowcharts?
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