Membranes are a filtration technology that rejects suspended solids, colloids, waxes, precipitates, macromolecules and some polysaccharides and starches. This process is done under pressure to push the solution through a selective membrane. When pressure is applied, pure solvent passes to the other side. This solvent is called permeate.



Membranes are a more selective filtration than traditional filtration methods. Membranes filter based upon differences in molecular weight, concentration or ionic charge. Membranes also use crossflow filtration to prolong the life of the membranes and increase the time between required chemical cleanings unlike traditional filters that typically need replaced upon fouling.

There are three main membrane separation processes currently employed by IFM for liquid/liquid and liquid/solid separation: ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO). With these membrane processes, IFM can design custom systems to fit your needs.

IFM is well versed in many water and wastewater membrane applications. This ranges from membrane bioreactors and filtering oily wastewater to pretreatment of tightly wound membranes and drinking water. Contact IFM for more information or a quotation.