Nanofiltration application in food technology and environmental protection

  • Gyula Vatai


Nanofiltration (NF) is a pressure driven membrane process applied in the area between the separation capabilities of reverse osmosis (RO) membranes and ultrafiltration (UF) membranes, that is, in the separation of ions from solutes such as small molecules of sugars. Nanofiltration is often used where the divalent ions (Ca, Mg and ions of plating industry) have to be removed. The molecular weight cut off of nanofiltration membranes is between 200-1000 Daltons, which means pore size ranges between 1-10 nm. Typical rejections of NF membranes are 60% for NaCl, 98% for magnesium sulphate, glucose and sucrose. Generally, this opens up the possibilities for process efficiency improvements and the production of new products, particularly in the food industry and biotechnology1. Some other specific applications are removal of colour, removal of TOC and trihalomethane precursors from surface water, removal of low molecular weight species such as organics in pharmaceutical production, surfactants from waste waters. The potential applications of nanofiltration in food industry and environmental protection are listed in Tab. 1.


Reverse Osmosis Transmembrane Pressure Spiral Wound Process Efficiency Improvement Retentate Concentration 
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  1. 1.
    Scott, K., 1995, Handbook of Industrial Membranes, Elsevier, Oxford, pp. 46, pp.726–770Google Scholar
  2. 2.
    Mulder, M., 1996, Basic Principles ofMembrane Technology, Kluwer Academic Publishers, Dordrecht, pp. 297–303CrossRefGoogle Scholar
  3. 3.
    Mallevialle, J., Odendaal, P.E., Wiesner, M.R. (Eds), 1996, Water Treatment Membrane Processes, Mc Graw-Hill, New York, pp. 9.1–9.70Google Scholar
  4. 4.
    Matamoros, H., Cabassud, C., Aurelle, Y., 1996, Nanofiltration Processes for Cutting Oil Wastewater Treatment, Proceedings of 7 th World Filtration Congress, Budapest, Hungary, pp. 531–535Google Scholar
  5. 5.
    Bender, R, Pflanzel, A., Czermak, P., Vienken, J., 1999, Endotoxin - Rückhalt mit keramischen Membranen, Preprints of 7. Aachener Membrane Kolloqium, Aachen, Germany, pp. 237–240Google Scholar
  6. 6.
    Weber, R., Chmiel, H, Fischer, G., Voigt, I., 1999, Keramische TiO2 — Nanofiltrationsmembranen fur den Einsatz in der Abwassertechnik, Preprints of 7. Aachener Membrane Kolloqium, Aachen, Germany, pp. 241–244Google Scholar
  7. 7.
    Wunsch, M., Nagel, R., Schick, W., 1999, Betriebsehrfahrangen mit der Nanofiltration bei der Trinkwasserenthärtung, Preprints of 7. Aachener Membrane Kolloqium, Aachen, Germany, pp. 245–248Google Scholar
  8. 8.
    Raff, O., Wilken, R.D., 1999, Versuche zur Uranentfemung aus Trinkwasser durch Nanofiltration, Preprints of 7. Aachener Membrane Kolloqium, Aachen, Germany, pp. 253–256Google Scholar
  9. 9.
    J.P. van’t Hul, Rácz, I.G., Reith, T., 1999, The Treatment of Waste Water from Washing processes Subsequent to Textile Reactive Dyeing Processes by Reverse Osmosis and Nanofiltration, Preprints of 7. Aachener Membrane Kolloqium, Aachen, Germany, pp. 257–261Google Scholar
  10. 10.
    Kirmess, S., Brand, Ch., Mirza, S., 1999, Erfahrungen mit laugenbestandigen organischen Nanofiltrationsmembranen, Preprints of 7. Aachener Membrane Kolloqium, Aachen, Germany, pp. 263–266Google Scholar
  11. 11.
    Goers, B., Mey, J., Wozny, G., 1999, Optimization of the Product and Water Recovery for Batch-Treatment of Rinsing Waters with Changing Composition, Proceedings of PRESS’99–2 nd Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, Budapest, Hungary, pp. 299–304Google Scholar
  12. 12.
    Radier, G.G.J., Van Oers, C.W., Wessling, M., 1999, Purification of Cooling Water at a Plant of Methanor with Nanofiltration, Euromembrane’99, Leuven, Belgium, Book of Abstracts, Vol. 1., pp. 130Google Scholar

Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • Gyula Vatai
    • 1
  1. 1.Department of Food EngineeringUniversity of Horticulture and FoodBudapestHungary

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