Ultrafiltration Equipment Model LFUF-15 Applied In Steel Mill Water Treatment

Performance and Features

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

1. High Flow Capacity:
   • Handles up to 15 m³/h, suitable for medium-to-large industrial operations.
   • Adjustable recovery rates (80–90%) reduce water waste.
2. Cost Efficiency:
   • Direct replacement for existing systems, minimizing downtime and retrofit costs.
   • Low maintenance requirements (e.g., membrane cleaning every 3–6 months).
3. Robust Construction:
   • Corrosion-resistant materials (304 stainless steel, PVDF) ensure durability in harsh environments.
   • Modular design allows easy expansion or customization.
4. Compliance:
   • Meets FDA, NSF, and EU standards for food, pharmaceutical, and semiconductor applications.
   • Backed by ISO certifications for quality and environmental safety.

Application in Steel Mill Water Treatment

1. Circulating Water Filtration:
   • Removes iron, scale, and particulates from cooling water systems, preventing equipment corrosion and scaling.
   • Ensures consistent water quality for blast furnaces, rolling mills, and other critical processes.
2. Wastewater Recirculation:
   • Polishes wastewater for reuse in non-contact cooling, reducing freshwater consumption.
   • Removes oils, greases, and suspended solids to meet discharge standards.
3. Boiler Feed Water:
   • Removes suspended solids and silica to prevent boiler tube fouling, extending equipment lifespan.

• 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

1. Food & Beverage: Purifies water for bottling, brewing, and cleaning.
2. Pharmaceutical: Provides ultra-pure water for drug manufacturing and sterilization.
3. Agriculture: Treats irrigation water to remove pathogens and improve crop yields.
4. Environmental Protection: Processes wastewater for reuse in industrial and municipal settings.
5. Textile & Dyeing: Recovers dyes and chemicals from wastewater, reducing resource waste.

Working Principle

1. Pre-Treatment:
   • Multi-media and activated carbon filters remove particulates, organics, and chlorine.
   • Dosing system adds chemicals to prevent scaling or enhance coagulation.
2. 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).
3. Backwash Cycle:
   • Periodically reverses flow to flush accumulated contaminants from membranes, maintaining performance.