Dynamic filtration, also called shear-enhanced filtration, consists in creating high shear rates at the membrane by a rotating disk, or by rotating or vibrating the membranes. This mode of operation permits to reach shear rates of the order of 1–3·105/s and to increase both permeate flux and membrane selectivity. Our recent technique permits to increase the performance of membrane filtration as compared to classical techniques known as crossflow filtration in which the fluid circulates along a fixed membrane. The high shear rates increase solute transmission through a microfiltration membrane leading to pure water outlet. |