What is the cross-flow filtration?
To answer this question, we must first discuss the principle of dead-end, that is to say the principle of filtration media, on plates, on land, membranes, etc..
The front filtration
corresponds to the passage of a charged liquid through a filter media, perpendicular to its surface. This technique is limited by the accumulation of particles and the formation of a cake on the surface of filter media, thus a rapid fall in performance and a decrease of the filtration level.
The cross-flow filtration
however, can limit the accumulation of particles through the fluid flow tangential to the surface of the membrane. The particles remain in the traffic flow while the liquid can pass through the membrane under the influence of pressure. This technique ensures stability in performance and level of filtration.
The strengths of tangential filtration are :