Applied Membrane Technology

Group

© Fraunhofer IKTS
Mobile filtration plant with backflushing device and temperature control unit.
© Fraunhofer IKTS
Membrane housing (exemplary) with different connectivity options, developed at Fraunhofer IKTS.

The separation of substance mixtures using membranes is relevant in all areas of the economy and the use of membrane separation processes is increasing worldwide. Fraunhofer IKTS develops ceramic membranes for membrane-based processes such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), organophilic nanofiltration (oNF), vapor permeation (VP), pervaporation (PV), gas separation (GS), membrane distillation (MD), membrane extraction using membrane contactors and membrane adsorption. To this end, we conduct research in the area of material processing, shaping and specific coatings, as well as the characterization of these novel membrane types.

The “Applied Membrane Technology” working group sees itself as a technology and needs analyst between science and industry. One focus is the qualification of newly developed membranes. To this end, they are first integrated into an appropriate housing (or module) and then characterized in terms of their performance and tested in specific applications, taking into account aspects of both module construction and plant engineering. The group is actively involved in the “Ceramic membranes” working group (DKG/DGM joint committee - high-performance ceramics) and is therefore always contributing to ongoing research activities.

In addition to the accompanying development of new types of membranes, a further focus is on the use of existing prototypes in new fields of application. Fraunhofer IKTS maintains the “Membrane Technology Application Center” for practical implementation in the area of liquid phase filtration. In addition to ceramic or mixed-matrix membranes, polymer membranes are also used for process development in order to achieve the required quality parameters. For example, polymeric membranes from the reverse osmosis (RO) area are used. In addition to its process engineering know-how, Fraunhofer IKTS has extensive expertise in the fields of electromembrane processes, water and wastewater technologies, biomass conversion and nutrient recycling. This creates the basis for the development of individual concepts and the implementation of integrable membrane processes in numerous branches of industry.

Service portfolio

  • Development, design and construction of membrane housings and test plants as well as filtration plants (laboratory to pilot scale, all phases of plant construction)
  • Development of specific membrane processes: Feasibility study, laboratory tests, membrane screening, concept development and piloting, development of cleaning strategies
  • Membrane characterization in liquid media - Stability tests of membrane materials upon request
  • Support and consultations (by telephone and on site, worldwide)

Technical equipment

  • Various table-top and laboratory systems for tubular and flat membranes
    • Microfiltration, ultrafiltration, nanofiltration, reverse osmosis
    • Up to 100 bar
    • Special systems for the filtration of acids, alkalis, high-salt solutions and organic solvents
  • Table-top system for rotating disk filters
    • Microfiltration, ultrafiltration
    • Up to 7 bar
  • Special systems for steam permeation, pervaporation, gas separation, membrane distillation, membrane extraction and adsorption
  • Various field test systems for aqueous feed solutions
    • Tubular geometry types
    • Microfiltration, ultrafiltration, nanofiltration
    • Up to 20 bar
  • Filtration containers for organic feed solutions
    • Tubular geometry types
    • Organophilic microfiltration, ultrafiltration, nanofiltration
    • Up to 40 bar
    • N2 inerting system
  • Measurement of liquid entry pressure (LEP)
  • Determination of the cut-off (MWCO) using size exclusion chromatography (GPC)
  • Liquid-liquid porometer (LLP) for pore size determination
  • Portfolio of hand-held field measuring devices
  • Access to IKTS extrusion and coating technology and advanced analytics

Blog

Membrane Technology Application Center

Current research

KeraMOL

Current research

CE compliant membrane filtration plants for applied research