Introduction
LEFILTER, a leading Chinese manufacturer with over 15 years of expertise in industrial fluid purification, introduces the Ultrafiltration Equipment Model LFUF-8. Engineered to meet the highest standards of performance and reliability, this system is designed for critical applications requiring high-quality water treatment, such as paper mills, food processing, and pharmaceuticals. The LFUF-8 combines cutting-edge technology with robust construction to deliver efficient, cost-effective solutions for diverse industries.
Product Overview
The Ultrafiltration Equipment Model LFUF-8 is a high-performance system that leverages advanced membrane technology to remove suspended solids, colloids, bacteria, and macromolecules from water. With a modular design and customizable configurations, it offers flexibility for varying flow rates and 水质 (water quality) requirements. Backed by ISO 9001, ISO 14001, and ISO 45001 certifications, the LFUF-8 ensures compliance with global quality and environmental regulations.
Technical Parameters
The LFUF-8 is equipped with state-of-the-art components and specifications optimized for industrial use:
| Parameter | Specification |
|---|---|
| Model | LFUF-8 |
| Treatment Capacity | 8 m³/h |
| Membrane Type | Polyvinylidene Fluoride (PVDF) Hollow Fiber Membrane |
| Membrane Area | 7 × 40” cartridges (total surface area: 600–800 m²) |
| Filtration Accuracy | 0.01–0.1 μm |
| Operating Pressure | 0.1–0.3 MPa |
| Recovery Rate | 80–90% |
| Water Temperature Range | 5–45°C |
| Power Supply | 380V, 50Hz |
| Raw Water Pump | Grundfos or CNP (CHL8-00, 1.1 kW) |
| Backwash Pump | Grundfos or CNP (CHL8-00, 1.1 kW) |
| Frame Material | 304 Stainless Steel Square Tube (polished surface) |
| Pipeline Material | High-pressure: Stainless Steel; Low-pressure: UPVC |

Product Structure
The LFUF-8 features a modular design with integrated components for efficient water treatment:
- Raw Water Tank (Optional): Stores feedwater and ensures continuous supply.
- Raw Water Pump: Provides pressure for pre-treatment and ultrafiltration system.
- Multi-Media Filter (Quartz Sand Tank): Removes particulates, colloids, and suspended solids.
- Activated Carbon Filter: Adsorbs organic compounds, chlorine, and odors.
- Dosing System (Optional): Adds chemicals for anti-scaling or coagulation.
- Security Filter: Protects ultrafiltration membranes from particles >5 μm.
- Ultrafiltration Membrane Modules: 7 × 40” PVDF hollow fiber membranes for high-efficiency separation.
- Backwash Pump: Automatically cleans membranes to maintain performance.
- Control System: PLC-based automation for real-time monitoring and adjustment.
Performance and Specifications
Filtration Efficiency
- Particle Removal: >99.9% for particles ≥0.01 μm.
- Bacteria/Virus Removal: >99.99%.
- Organic Substances: Effective removal of proteins, colloids, and macromolecules.
Operational Stability
- Self-Cleaning: Automatic backwash function reduces downtime and manual maintenance.
- Low Energy Consumption: Optimized pump design minimizes energy costs.
- Longevity: Membrane lifespan of 3–5 years with proper maintenance.
Key Advantages
- High Flow Capacity:
- Handles up to 8 m³/h, suitable for medium-to-large industrial operations.
- Adjustable recovery rates (80–90%) reduce water waste.
- Cost Efficiency:
- Direct replacement for existing systems, minimizing downtime and retrofit costs.
- Low maintenance requirements (e.g., membrane cleaning every 3–6 months).
- Robust Construction:
- Corrosion-resistant materials (304 stainless steel, PVDF) ensure durability in harsh environments.
- Modular design allows easy expansion or customization.
- Compliance:
- Meets FDA, NSF, and EU standards for food, pharmaceutical, and semiconductor applications.
- Backed by ISO certifications for quality and environmental safety.
Application in Paper Mill Water Treatment
The Ultrafiltration Equipment Model LFUF-8 is ideally suited for paper mill water treatment, addressing critical challenges:
- Whitewater Recovery:
- Purifies and recycles process water, reducing freshwater consumption by up to 60%.
- Removes fibers, fillers, and colloids to maintain equipment efficiency.
- Effluent Treatment:
- Polishes wastewater to meet discharge standards, minimizing environmental impact.
- Enables reuse of treated water for non-contact cooling and cleaning.
- Boiler Feed Water:
- Removes suspended solids and silica to prevent scaling in boilers, extending equipment lifespan.
Key Benefits for Paper Mills:
- Sustainability: Reduces water intake and wastewater discharge.
- Cost Savings: Lower freshwater and chemical treatment costs.
- Process Reliability: Consistent water quality ensures stable production.
Other Industrial Applications
The LFUF-8 excels in diverse industries:
- Food & Beverage: Purifies water for bottling, brewing, and cleaning.
- Pharmaceutical: Provides ultra-pure water for drug manufacturing and sterilization.
- Agriculture: Treats irrigation water to remove pathogens and improve crop yields.
- Environmental Protection: Processes wastewater for reuse in industrial and municipal settings.
- Textile & Dyeing: Recovers dyes and chemicals from wastewater, reducing resource waste.

Working Principle
The LFUF-8 operates on the principle of ultrafiltration, a pressure-driven membrane process that separates contaminants based on molecular size:
- Pre-Treatment:
- Multi-media and activated carbon filters remove particulates, organics, and chlorine.
- Dosing system adds chemicals to prevent scaling or enhance coagulation.
- Ultrafiltration:
- High-pressure pump drives feedwater through PVDF hollow fiber membranes.
- Membranes retain particles, colloids, and macromolecules (retentate), while allowing water and small solutes to pass through (permeate).
- Backwash Cycle:
- Periodically reverses flow to flush accumulated contaminants from membranes, maintaining performance.
Conclusion
LEFILTER’s Ultrafiltration Equipment Model LFUF-8 combines cutting-edge technology, durability, and cost efficiency to deliver superior water purification for industrial applications. Whether used in paper mills, food processing, or pharmaceuticals, this system ensures reliable, high-quality water while reducing environmental impact and operational costs.
Why Choose LEFILTER?
- Global Expertise: Exported to 128+ countries with 24/7 technical support.
- Custom Solutions: Modular design tailored to specific flow rates and water quality requirements.
- Sustainability: Low energy consumption and high recovery rates align with green initiatives.
