NF Membrane

Product Overview

Nanofiltration membrane is a separation product with precision between reverse osmosis and ultrafiltration. It is mainly used to remove divalent/multivalent ions, organic matter, and trace pollutants while retaining some monovalent ions, making it suitable for partial desalination or selective separation processes.

Key Features

1️⃣Excellent rejection of hardness ions and organic pollutants

2️⃣Lower operating pressure than RO, reducing energy consumption

3️⃣Selective permeability for specific separation requirements

4️⃣Strong anti-fouling properties and easy cleaning maintenance

5️⃣Compatible with RO systems for staged filtration

Technical Specifications

🔹Salt rejection rate: 85%~95%

🔹Sizes: 4-inch / 8-inch

🔹Maximum feed water temperature: 45°C

🔹Effective membrane area: 85 ft² (7.9 m²) / 400 ft² (37.2 m²)

🔹Membrane configurations: Spiral wound / Tubular

🔹Membrane materials: Polyamide TFC / Sulfonated polyethersulfone (SPES) / Mixed matrix membrane (MMM)

Applications

✅ Desalination/decoloration in food and beverage industries

✅ Solution concentration in pharmaceutical and chemical industries

✅ Groundwater softening and heavy metal removal

✅ Dye recovery and concentration treatment

✅ Pretreatment for agricultural wastewater reuse