Table 6: Comparison of the PVDF and PTFE membranes at 65°C, 110.2 (L/h), and 97 kPa for 35 g/L.

MembranePermeate flux (kg/m2 h)Permeate concentration (mg/L)Permeate conductivity (μS/cm)% of rejection

PVDF43.81758.199.5
PTFE52.628010.299.2