Nanofiltration is a separation process characterized by organic, thin-film composite membranes with a pore size range of 0.1 to 10nm. Unlike reverse osmosis (RO) membranes, which reject all solutes, NF membranes can operateat lower pressures and offer selective solute rejection based on both size and charge.
Specification
Desalinization rate %: 85-95 Permeate Flow GPD(m^3/d): 8500(32) Effective membrane area ft2(m^2): 400(37) Max operating pressure psi(MPa): 600(4.14) Suggested operating pressure psi(MPa): 75(0.52) The maximum water supply temperature: 45°C The maximum water supply SDI15: <5 Free chlorine concentration in water supply: <0.1ppm Water supply pH scope when continuous running: 3-10 Input water max NTU: 1.0 The maximum pressure drop of single RO membrane element: 10psi(0.07Mpa)