Micro et ultrafiltration sur membranes minérales

Alumina mineral membranes manufacture is achieved by a two stage process corresponding with support and active layer making during which the chemical nature of membrane components is changing. γ alumina is progressively dehydrated inti α alumina whose reactive surface in a filtration layer is able to interact with solvent and dissolved compounds. Various hypothesis based on superficial active sites are used to explain deviations from theoritical explanations of Poiseuille's law during water filtration