The LFUF-4 Ultrafiltration (UF) System, developed by XINXIANG LIFEIERTE FILTER CORP., LTD, is a state-of-the-art solution for industrial and municipal water treatment. Designed to remove suspended solids, colloids, bacteria, and macromolecular organic compounds, the LFUF-4 ensures consistent high-purity water output for critical applications such as pharmaceutical production, food and beverage processing, and wastewater reuse. Leveraging advanced hollow-fiber membrane technology, this system combines efficiency, durability, and ease of maintenance, making it a cost-effective choice for diverse industries.
Technical Specifications
The LFUF-4 is engineered for optimal performance under varying operational conditions. Key specifications include:
Parameter
Value
Membrane Type
Polyethersulfone (PES) Hollow Fiber
Pore Size
0.01–0.1 μm
Flow Rate
4 m³/hr
Operating Pressure
0.1–0.3 MPa (15–45 psi)
Temperature Range
5°C–45°C
pH Tolerance
2.0–12.0
Turbidity Removal Rate
>99.9%
Bacterial Retention
>99.99% (LRV ≥6)
Membrane Lifespan
3–5 years (with proper maintenance)
Dimensions (L×W×H)
1500×800×1800 mm
Note: Specifications are validated under ISO 9001-certified testing conditions.
Working Principle
The LFUF-4 employs crossflow ultrafiltration to achieve efficient separation:
Feedwater Intake: Raw water is pumped into the system and directed through a pre-filter to remove large particles.
Membrane Filtration: The pressurized feed flows tangentially across the hollow-fiber membrane surface. Water and small molecules (<0.1 μm) permeate through the membrane pores, while suspended solids, bacteria, and macromolecules are retained.
Backwash Cycle: Periodic reverse flushing with permeate water dislodges accumulated contaminants, maintaining membrane flux and extending service life.
Permeate Collection: Purified water is collected for use, while concentrated contaminants are discharged as reject water.
This process ensures >99.9% turbidity removal and LRV ≥6 for bacteria, meeting stringent purity standards.
Performance & Advantages
The LFUF-4 outperforms conventional filtration systems with its robust design and advanced features:
Key Advantages
High Efficiency: Removes particles, colloids, and pathogens without chemicals.
Low Energy Consumption: Operates at low pressure (15–45 psi), reducing operational costs.
Chemical Resistance: PES membranes withstand aggressive cleaning agents (e.g., NaOH, HCl).
Compact Design: Modular structure saves space and allows scalability.
Performance Metrics
Parameter
LFUF-4
Industry Standard
Permeate Turbidity
<0.1 NTU
<1 NTU
Recovery Rate
85–92%
75–90%
Cleaning Frequency
Every 30–60 minutes
Every 15–30 minutes
Product Structure
The LFUF-4 features a modular, user-friendly design:
Pre-Filtration Unit: Includes a 20-μm cartridge filter to protect the UF membrane.
Hollow-Fiber Membrane Module: Contains thousands of PES fibers with a total surface area of 40 m².
Stainless Steel Housing: Corrosion-resistant 304 SS construction for durability.
Backwash System: Automated pumps and valves for efficient membrane cleaning.
Control Panel: Touchscreen PLC interface for real-time monitoring of pressure, flow, and turbidity.
Application in Pharmaceutical Water
Pharmaceutical water systems require zero endotoxins and ultra-low microbial counts. The LFUF-4 is ideal for:
Purified Water (PW) Production: Removes particulates, pyrogens, and bacteria to meet USP/EP standards.
Pretreatment for RO Systems: Reduces RO membrane fouling by eliminating colloids and organics.
WFI (Water for Injection) Support: Ensures feedwater quality for subsequent distillation or RO polishing.
Case Study: A pharmaceutical facility in Asia reduced bacterial counts by 99.99% and achieved 24/7 compliance with pharmacopeial standards after installing the LFUF-4.
Other Applications
Beyond pharmaceuticals, the LFUF-4 serves diverse industries:
Food & Beverage: Clarification of juices, dairy processing, and brewery water treatment.
Electronics: Ultra-pure water for semiconductor manufacturing.
Municipal Water: Surface water treatment and wastewater reuse.
Chemical Industry: Process water purification and emulsion separation.
Conclusion
The LFUF-4 Ultrafiltration Systemby XINXIANG LIFEIERTE FILTER CORP., LTD delivers unmatched reliability and efficiency for high-purity water production. Its advanced membrane technology, automated controls, and robust construction make it a versatile solution for industries demanding stringent water quality. Whether for pharmaceutical-grade water, food processing, or municipal applications, the LFUF-4 ensures operational excellence and sustainability.
