Mass transfer

This work focuses on a non-destructive process for recovering valuable aromatic fractions from odorous industry aqueous effluent. Non-dispersive extraction of ten selected aroma compound was carried out on very diluted model aqueous solutions, using membrane contactors, in two configurations: liquid

Mechanism specificity of ion separations in drinking water is necessary for the study of modeling transfer of calcium salt through nanofiltration membrane. In the present work, we have investigated a mathematical model which can specify the transfer phenomena of solute through a nanofiltration membr

Organic acids are increasingly used for various industrial applications. Their production is mainly achieved by fermentation. Precipitation or extraction stages, which generates big amount of effluents, are then traditionally used to get the acid in a suitable form. Bipolar membrane electrodialysis

In electrophoretic separators, a porous membrane is used to put into contact two flowing liquids between which an electrically driven mass transfer takes place. As far as charged solutes are concerned, the mass transfer can be affected by electrostatic interactions taking place at the membrane solut

This paper presents a study that aims to overcome oxygen limitations in membrane-attached biofilms in the Extractive Membrane Bioreactor (EMB), by using nitrate instead of oxygen as an electron acceptor. In the EMB target organic compounds are extracted through a dense membrane into a bioreactor, wh

In modern blood oxygenators, microporous membranes (flat sheet or hollow fibre) are used to separate the blood and gas phases. Blood flows on one side of the membrane while gas (usually oxygen or air) flows on the other side. Since the membranes used are hydrophobic (e.g., polypropylene, Teflon), th

The mixing-cup concentration was investigated under different flow conditions (parabolic flow and plug flow in the lumen side of hollow fibers) and at different values of the concentration-dependent diffusion and solute distribution coefficient. The concentration dependency of both coefficients was