1. Case Basic Information
1.1 Company Overview
Hella Water Treatment Equipment Technology Co., Ltd. is a professional provider of small-scale RO water purification solutions, specializing in commercial, industrial, and rural water treatment systems. With decades of industry experience, the company offers integrated, skid-mounted equipment featuring high desalination efficiency, intelligent control, and corrosion resistance. Its products meet WHO drinking water standards and are deployed globally, serving scenarios such as small communities, light industry, and underground water purification. For more water treatment products, visit [water treatment product].
1.2 Project Background
This project targets small-scale water purification needs (e.g., rural communities, small factories, or commercial buildings) requiring deep desalination and contaminant removal from underground water. The 10m³/h RO system processes raw water with high TDS, turbidity, and toxic organic/inorganic pollutants into safe, clean drinking water. The 8-stage filtration design and skid-mounted structure ensure easy installation, while the SUS304 frame and UPVC piping guarantee long-term reliability.
1.3 Raw Water & Target Water Quality Data
Raw Water Quality (Underground Water)
| 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) |
| Benzene | 10 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 (Drinking Water)
| Parameter | Standard Value | Unit | Compliance Reference |
|---|---|---|---|
| TDS | ≤20 mg/L | mg/L | WHO Drinking Standard |
| Turbidity | ≤0.1 NTU | NTU | – |
| Conductivity | ≤50 μS/cm | μS/cm | – |
| Ammonia (NH₃) | ≤0.1 mg/L | mg/L | – |
| Nitrite (NO₂⁻) | ≤0.1 mg/L | mg/L | – |
| Organic Pollutants (Benzene/Toluene) | 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 and toluene 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: 10 m³/h of purified water, supporting 24/7 continuous operation (recommended ≤18 hours/day for longevity).
- Desalination Efficiency: Desalination rate ≥99.5% to reduce TDS from 1500 mg/L to ≤20 mg/L.
- Automation Level: Auto/manual control system with PLC integration; real-time monitoring of pressure, flow, and water quality.
- Compact Design: Skid-mounted structure (2750×1000×2050mm) for easy transportation and installation.
- Durability: Corrosion-resistant materials (SUS304 frame, FRP filter tanks, UPVC pipes) for underground water treatment.
- Maintenance Convenience: Easy-to-replace filter elements and RO membranes; pressure difference trigger (＞0.2 MPa) for shutdown.
- Compliance: Meet WHO drinking water standards and local environmental regulations.
3. Hella Water Customized Solutions
3.1 System Model and Core Configuration
Hella Water provides the HLRO-10T 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 | FRP quartz sand filter (1000KG media) + FRP activated carbon filter (350KG media) + 1μm precision filter (stainless steel) |
| 2 | Dosing System | Anti-scaling dosing system (200L PE tank + 5bar 7L/H dosing pump) |
| 3 | RO Membrane System | 5×8040-2 pressure vessels + 10×8040-type RO membranes (Vontron, 99.5% desalination rate) |
| 4 | High-Pressure System | High-pressure pump (flow 20m³/h, head 150m) with pressure switch protection |
| 5 | Disinfection System | 110V UV sterilizer for deep microbial control |
| 6 | Control & Protection | PLC integrated controller, ammeter, voltmeter, high/low pressure switch, conductivity alarm |
| 7 | Raw Water & Piping | Raw water pump (flow 20m³/h, head 40m) + UPVC pipes + SUS304 skid-mounted frame |
For more pre-treatment systems, visit [pre treatment filtration system].
3.2 Key Technical Parameters of HLRO-10T
| Parameter | Specification |
|---|---|
| Water Output Capacity | 10 m³/h (at 25℃) |
| Power Supply | 380V/3P/50Hz |
| Total Power Consumption | 18 kW |
| Filtration Stages | 8-stage (quartz sand → activated carbon → dosing → precision filter → RO → UV sterilization) |
| Membrane Quantity | 10×8040-type RO membranes |
| Desalination Rate | ≥99.5% |
| Operating Pressure | 1.5 MPa |
| Operating Temperature | 5℃-50℃ |
| System Recovery Rate | ＞50% (max ≤70%) |
| SDI Requirement | <5 (raw water pretreatment target) |
| Lead Time | 15 days |
| Design Service Life | 8-10 years (RO membrane ≥3 years) |
3.3 Process Design
3.3.1 8-Stage Purification Process
- Quartz Sand Filtration: FRP tank with 1000KG quartz sand removes suspended solids, colloids, and silt; automatic backwashing.
- Activated Carbon Filtration: FRP tank with 350KG activated carbon adsorbs organic matter, residual chlorine, and toxic organics (benzene/toluene). 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: 10×8040-type membranes (0.0001μm precision) remove 99.5% of dissolved salts, heavy metals, and nitrite/nitrate. For reverse osmosis details, visit [reverse osmosis].
- UV Sterilization: 110V UV light kills residual bacteria and viruses, ensuring drinking water safety.
3.3.2 Control and Protection
- Dual Control Modes: Auto mode runs according to preset parameters; manual mode for maintenance and emergency operation.
- Pressure Protection: High/low pressure switch (low pressure shutdown, high pressure alarm) prevents equipment damage.
- Monitoring Devices: Conductivity meter, pressure gauge, and flowmeter track system performance; alarms trigger for abnormalities.
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 | ≤20 mg/L | ≥98.7% |
| Turbidity | 20 NTU | ≤0.1 NTU | ≥99.5% |
| Conductivity | 2600 μS/cm | ≤50 μS/cm | ≥98.1% |
| Ammonia (NH₃) | 15 mg/L | ≤0.1 mg/L | ≥99.3% |
| Nitrite (NO₂⁻) | 3 mg/L | ≤0.1 mg/L | ≥96.7% |
| 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 ≤±1%, TDS stable at ≤18 mg/L.
- Energy Efficiency: Operating power 18 kW, energy consumption ~1.8 kWh/m³ of purified water.
- Compactness: Skid-mounted design (2400 kg weight) fits in standard utility rooms; installation completed within 1-2 days.
- Durability: SUS304 frame, FRP tanks, and UPVC pipes show no corrosion after 6-month operation in underground water environments.
- User-Friendliness: Online video guides and manuals support easy installation; minimal training required for operation.
4.3 Compliance and Application
- Standards Compliance: Meets WHO drinking water standards and ISO quality management requirements.
- Case Validation: Successfully deployed in rural communities and small industrial projects in South Africa, Thailand, and Indonesia, with customer satisfaction ≥95%. 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 |
|---|---|---|---|---|---|
| 10m³/H RO Water Purification System | HLRO-10T | 1 | 14,650 | 14,650 | Complete 8-stage system including filters, RO membranes, pump, control cabinet, and UV sterilizer; EXW price |
| Shipping Fee (FOB Qingdao) | – | 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 | 5/piece | 24 pieces | 120 |
| Anti-Scaling Chemicals | Industrial grade | 60/bottle | 12 bottles | 720 |
| RO Membranes (10% replacement) | 8040-type | 350/piece | 1 piece | 350 |
| Quartz Sand | Filter media | 0.3/kg | 200 kg | 60 |
| Activated Carbon | Filter media | 1.2/kg | 70 kg | 84 |
| Total | – | – | – | 1,334 |
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), anti-scaling chemicals (monthly replenishment), RO membranes (3+ 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 triggers the system to shut down automatically?A2: The system shuts down when the pressure difference exceeds 0.2 MPa, indicating filter/membrane fouling that requires cleaning or replacement.
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 for non-professionals?A1: Yes. The skid-mounted design and online video guides allow installation by local technicians; no complex civil engineering required.
Q2: What is the recommended operating time per day?A2: The system can run 24 hours/day, but 18 hours/day is recommended to extend membrane and pump lifespan.
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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