Membrane distillation: theory and experiments

A framework for better understanding membrane distillation separation process

“…It must be mentioned that although stirring cells (i.e. Lewis cells) are not suitable for MD industrial implementation, these type of MD set-ups demonstrate to be useful for laboratory DCMD experiments [3,89,118,121]. In this type of MD systems, enhancement of the DCMD flux with stirring rate up to an asymptotic value is easily observed.…”

Study of a new membrane evaporator with a hydrophobic metallic membrane

“…Thus, this process can be considered in the same category as distillation at temperature below the boiling point of the components to be separated. Indeed, the gaseous phase is only present within the membrane pores [6,7]. The main advantage of osmotic evaporation and membrane distillation, compared to other membrane processes is the high selectivity for non-volatile compounds (100% retention of ions, macromolecule, colloids, and cells).…”

Modeling heat and mass transfer in osmotic evaporation process

“…Rigorous approaches, which tend to combine mass and heat transfer, have emerged in the literature for the membrane Ž . Ž distillation MD process Godino et al, 1996;Pena et al, . 1998 . In the OE process, which is theoretically isothermal if the resistance to heat transfer is negligible, there is always a thermal effect due to the evaporation᎐condensation phenomena through the membrane.…”