Forward osmosis(FO)is a new membrane technology with the osmotic pressure of solution as the driving force.The water flux in FO process depends heavily on the temperature due to its effects on properties of solution and membrane and the interaction between them.In this study

the effect of temperature in FO process was investigated using numerical simulation and experiments.The results show that the FO water flux increases with temperature.In the presence of transmembrane temperature difference

the temperature of feed solution predominates the water flux over the temperature of draw solution

due to decreased solution viscosity and enhanced diffusion with elevated temperature.At different temperature profiles

water and heat flux increase with flow rate

resulted from the enhancement of mass and heat transfer within the depressed fluid boundary layer on the membrane surface.