Overview

Green Nature Solutions Ultra Filtration (UF) systems are membrane-based separation systems that use hollow fibre or spiral wound membranes with pore sizes in the range of 0.001 to 0.1 micron. UF is highly effective at removing suspended solids, colloidal particles, bacteria, viruses, high-molecular-weight organics and turbidity — without the use of chemicals and at low operating pressures.

How It Works

Feed water is pressurised and passed through the UF membrane at low applied pressure (1–3 bar). The membrane pores are small enough to retain suspended solids, bacteria, protozoa, colloids and macromolecules while allowing water, dissolved salts and small molecules to pass freely as permeate. Since osmotic pressure differences across the UF membrane are negligible, low pressures achieve high flux rates.

Membrane Specifications

• Pore Size: 0.001 – 0.1 micron
• Configuration: Hollow fibre or spiral wound
• MOC: PVDF / PES / PAN
• Operating Pressure: 1 – 3 bar
• Operating Temperature: 5°C – 45°C

What UF Removes

Applications

• Pre-treatment before RO membranes (replaces conventional multimedia filtration)
• Surface water and river water treatment
• Municipal drinking water plants
• Food and dairy processing
• Pharmaceutical and biotechnology
• Wastewater reclamation and recycling
• Industrial process water polishing

Key Features

• Chemical-free filtration at low operating pressure
• Consistent permeate quality regardless of feed variation
• Compact modular design — easily expandable
• Automatic backwash and CEB (Chemically Enhanced Backwash) cycles
• Long membrane life (5–7 years with proper maintenance)
• Can be integrated with RO as a pre-treatment stage
• PLC-based automatic operation

Technical Specifications