Cross-flow Filtration

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 :

The simplicity of implementation, good reliability thanks to organic and / or inorganic membranes use,
Modularity of the design of the installations,
A process whitch can work continuously,
A soft process, respecting the product and occuring without any phase changing, unlike some other processes. Molecules are not denatured,
The tangential filtration does not use any additive and provides two fluids generally recoverable (concentrate and filtrate): a process that respect the environment.

Project initiatives

Design & manufacturing of industrial membrane filtration systems