WATER PRODUCTION FROM BRINES BY MEMBRANE DISTILLATION

The possibility of obtaining pure water by membrane distillation, from brines rejected in other water production operations has been conside red. Membrane distillation experiments have been carried out by using two PTFE porous hydrophobic membranes and sodium chloride aqueous solu tions, within a wide range of solute concentrations. The influence of stirring rate, mean temperature and salt concentration on the fluxes h as been estimated. The results suggest that a cooperation of membrane distillation and solar distillation techniques may be fruitful.