- Qingqingquan
- Shandong
- 20 days
- 300 units per month
Professional spiral wound RO membrane systems. 1-50 m³/h capacity, 99.7% salt rejection, Dow/Toray membranes. Download technical specifications and performance data.
Spiral Wound RO Membrane Systems - 2025 Technical Guide
Why Spiral Wound Design Dominates Industrial RO Applications
✔ 99.7% salt rejection rate - Highest industry standard for dissolved solids removal
✔ 40% higher packing density - Maximizes filtration area in compact space
✔ Lower operating pressure - Saves 15-25% energy compared to other configurations
✔ Wider pH tolerance - Operates effectively at 2-11 pH range for cleaning flexibility
Industry Fact: Spiral wound elements cover 85% of global industrial RO applications due to optimal cost-performance ratio
3 System Configurations
1. Standard Industrial Series (1-10 m³/h)
For: Food processing, pharmaceutical manufacturing, boiler feed water
Operating Pressure: 15-20 bar
Recovery Rate: 65-75%
Membrane Options: Dow Filmtec, Toray, Hydranautics
2. High-Rejection Brackish Water Series (10-50 m³/h)
For: Municipal water treatment, mining operations, power plants
Operating Pressure: 10-15 bar
Salt Rejection: >99.5%
Features: Advanced anti-telescoping design
3. Seawater Desalination Series (5-30 m³/h)
For: Coastal industries, island communities, marine vessels
Operating Pressure: 55-70 bar
Salt Rejection: >99.8%
Features: Boron removal optimization
Technical Specifications
| Parameter | Specification |
|---|---|
| Membrane Material | Polyamide thin-film composite |
| Element Diameter | 4" / 8" standard |
| Element Length | 40" / 60" |
| Max Temperature | 45°C |
| Chlorine Tolerance | <0.1 ppm |
5 Competitive Advantages
✔ Anti-telescoping technology - Prevents membrane damage during pressure surges
✔ Advanced feed spacers - 30% better flow distribution than conventional designs
✔ Full-fit construction - Eliminates bypass and improves efficiency
✔ iLEC interconnectors - Simplified replacement without adapters
✔ Performance warranty - Longest in industry
Case Study: Hami mining operation reduced wastewater discharge by 68% with our customized RO system
Maintenance Protocol
✅ Daily: Monitor normalized permeate flow and salt rejection
✅ Weekly: Check differential pressure across stages
✅ Monthly: Clean-in-place (CIP) with customized formulations
✅ Quarterly: Element performance testing and O-ring replacement
✅ Annually: Full system audit and membrane replacement planning
Pro Tip: Maintain SDI <3.0 and turbidity <0.2 NTU to extend membrane life to maximum 5-7 years
Performance Data
| Contaminant | Feed Concentration | Permeate Concentration | Removal Rate |
|---|---|---|---|
| Total Dissolved Solids | 2,000 ppm | <15 ppm | 99.25% |
| Calcium | 150 ppm | <0.5 ppm | 99.67% |
| Sulfate | 420 ppm | <2.0 ppm | 99.52% |
| Bacteria | 1,000 CFU/ml | 0 CFU/ml | 100% |
Applications
1. Industrial Process Water
• Electronics manufacturing ultra-pure water
• Pharmaceutical water for injection (WFI)
• Food and beverage processing water
2. Water Reuse and Recycling
• Wastewater recovery and reuse
• Zero liquid discharge (ZLD) systems
• Mining effluent treatment
3. Drinking Water Production
• Municipal water treatment
• Brackish water desalination
• Emergency water supply systems
Why Choose Our RO Systems?
✔ Years membrane technology specialization
✔ Customized design for specific water conditions
✔ 24/7 technical support with remote monitoring
✔ Global shipping with complete documentation
