Membrane Filtration is the common denominator for the following cross-flow filtration technologies supplied by GEA Filtration:

  • Reverse Osmosis (RO) involves the tightest membrane, which allows only water to pass through its pores. The main applications are e.g. desalination, concentration of juice extract, concentration of milk, whey and UF permeate. GEA Filtration supply customized Reverse Osmosis Modules for a wide range of applications.
  • Nanofiltration (NF) is a process similar to the above mentioned RO process, but with a relative open menbrane, which allows mainly small ions (e.g. NaCl) to pass the membrane. Nanofiltration is mainly use for simultaneous concentration and partial demineralisation. GEA Filtration supply customized Nanofiltration Modules for a wide range of applications.
  • Ultrafiltration (UF) uses an even more open membrane allowing salts and sugar molecules to pass the membrane. Molecules like fat and proteins are therefore concentrated with this technology. GEA Filtration supply customized Ultrafiltration Modules for a wide range of applications, but also proven standard modules like e.g. MICRO FORMULA.
  • Microfiltration (MF) involves are more open type of membrane, which will reject e.g. suspended particles, bacteria and some viruses. Main applications are sanitation and clarification of various liquids.  GEA Filtration supply customized Microfiltration Modules for a wide range of applications, but also proven standard modules like e.g. COLDSAN.

For detailed information on the wide range of applications for which Cross-flow membrane filtration can be used, please visit GEA Filtration home page.