Electro-membrane Filtration

In electro-membrane filtration (EMF) the material separation in the electric field is combined with mechanical membrane filtration. A reactor is divided into two chambers – the retentate compartment and the permeate compartment – using a standard filtration (e.g. ultrafiltration) membrane.

The driving gradient for the material transport across the membrane can be generated both by the transmembrane pressure and by the electric field applied. This permits separation both on the basis of the electric charge and the particle size. As a result, for example, a significantly higher degree of selectivity combined with low energy consumption can be achieved compared with the established ultrafiltration method.

Reference projects

EnReMilk –

Integrated engineering approach validating reduced water and energy consumption in milk processing for wider food supply chain replication


Fifteen European partners are working together on optimizing novel water-and energy-saving technologies and integrating them into selected dairy processing lines, while maintaining the quality and safety of the corresponding products. All the process steps will be examined, and the potentials of a vast array of technologies will be analyzed using process modelling tools.


Duration: January 2014 – December 2017

Whey2Food – Enhanced protein fractionation from protein sources for their use in special food applications


The EMF process is currently being used and optimized within the scope of the EU-funded “Whey2Food” project for the fractionation of whey proteins.


Duration: November 2013 – October 2015