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

Figure 12

The effect of the vacuum degree on the permeate flux at 27.7 and 110.2 (L/h) feed flow rates; a 55°C feed temperature and 35,000 mg/L of NaCl for the (a) PVDF and (b) PTFE membranes.

(a)

(b)