Performance Investigation of O-Ring Vacuum Membrane Distillation Module for Water Desalination

Figure 11

The effect of the vacuum degree on the permeate flux at 45 and 55°C feed temperatures; 110.2 (L/h) feed flow rate and 35,000 mg/L of NaCl for (a) PVDF and (b) PTFE membranes.

(a)

(b)