Nanofiltration in Transforming Surface Water into Healthy Water: Comparison with Reverse Osmosis

Table 1

Membranes’ characteristics.

Manufacturer	Permionics Pvt. Ltd., Vadodara, India
Membrane type	Thin film composite (TFC) polyamide
Configuration	Spiral wound
Dimensions	Length of 40 inches, diameter of 2.4 inches, and an effective area of 2.5 m^2
Pure water flux	90 L/(h·m^2) at 55.2 bars of feed pressure and 25°C temperature
NaCl salt rejection	99.4% for 32,000 mg/L feed concentration at the pH range of 2 to 11
Recommended applied pressure	3–14 bars
Maximum applied pressure	41 bars
Recommended applied temperature	2–45°C