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Filtration

Concept

Filtration is a mechanical procedure for the separation of solid substances from liquids by using appropriate types of porous material as filter. Bioprocess applications include the separation of microorganisms, the concentration of biomass and the clarification of an intermediate or the final product.

Applications

Depending on the application, filtration requirements can vary widely. We select suitable methods from first class manufacturers in line with process conditions and product specifications.

A wide variety of proven filtration systems is utilized, including

  • Polymer, ceramic or sintered metal cross flow membranes (vinegar, glucose, HFS)
  • Vacuum drum filters (low-DE syrups, glucose, citric acid, yeast)
  • Belt filters (citric acid)
  • Filter presses (low-DE syrups, glucose)

Further, dead-end cartridge filters are used for sterilization of fermentation air, fermentation substrates and clean steam. Similar filters are used for final filtration of product solutions to comply with microbiological specifications.

„After close cooperation in a friendly atmosphere the start-up of the plant was performed successfully. It is in operation since 10 months now and we are fully satisfied with the very competitive final alcohol quality and performance from this well equipped production line."
Wang Chang Nan, Harbin Winery Factory, Neutral Alcohol Plant, Harbin, China