Ultrafiltration of oil-in-water emulsion: flux enhancement with static mixer

• Autorzy: Koris A. , Kristic D. , Hu X. , Vatai G.
• Języki publikacji: EN

Abstrakty

EN

Conventional methods of oily emulsion separation are not effective in removing small oil droplets and emulsions, especially if the emulsion is stable and the oil concentration is low. This paper deals with the oil removal from oil-in-water emulsion by an ultrafiltration membrane under different operating condi-tions of a novel flux enhancement method. Separation of oily water and wastewater by membrane filtra-tion is a well-known process. Generally, because of heavy concentration polarization and membrane fouling, a single-stage membrane process is not economical and usually does not provide satisfying results in retention. In our experiments, 20 nm pore size ceramic tubular membranes were used. In order to reduce concentration polarization and membrane fouling, the use of static turbulence promoters, such as rods, differently shaped inserts and static mixers, has been considered during cross-flow ultrafiltration and microfiltration with different fluids. Helix-like plastic static turbulence promoter was installed in the experimental apparatus

Słowa kluczowe

EN

oil-in-water emulsion; membrane separation; ultrafiltration; flux enhancement; concentration-polarization reduction; static mixer

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2005
• Tom: Vol. 31, nr 3-4
• Strony: 163--176
• Opis fizyczny: Bibliogr. 6 poz., tab., rys..

Twórcy

autor

Koris A.

• Corvinus University of Budapest, Faculty of Food Science, Department of Food Engineering (www.emuv.kee.hu), 1118, Budapest, Ménesi str 44, Hungary. Tel: [phone]

autor

Kristic D.

• University of Novi Sad, Faculty of Technology, Department of Chemical Engineering, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia and Montenegro

autor

Hu X.

• Institute of Tribology, Hefei University of Technology, Hefei 230009, PR China

autor

Vatai G.

• Corvinus University of Budapest, Faculty of Food Science, Department of Food Engineering (www.emuv.kee.hu), 1118, Budapest, Ménesi str 44, Hungary. Tel: [phone]

Bibliografia

• [1] KARAKULSKI K., MORAWSKI A.W., Treatment of spent emulsion from a cable factory by an integrated UF/NF membrane system, Desalination, 2002, 149, 163–167.
• [2] LIN S.H., LAN W.J., Waste oil–water emulsion treatment by membrane processes, Journal of Hazardous Materials, 1998, 59, 189–199.
• [3] KORIS A., HU X., VATAI G., Ultrafiltration and nanofiltration of oil-in-water emulsions: comparison of resistances, Scientific reunion of the special program of the Alexander von Humboldt Foundation concerning the reconstruction of the South Eastern Europe: Sustainability for Humanity and Environment in the Extended Connection Field Science – Economy – Policy, Timisoara, Romania, proceedings I, 2005, pp. 141–144.
• [4] HU X., BEKASSY-MOLNAR E., KORIS A., Study of modelling the transmembrane pressure and gel resistance in ultrafiltration of oily emulsion, Desalination, 2003, 163, pp. 355–360 (PERMEA 2003, Slovakia, 7–11 September).
• [5] MULDER M., Basic Principles of Membrane Technology, Kluwer Academic Publishers, 1997.
• [6] KRSTIĆ D.M., TEKIĆ M.N., CARIĆ M.Đ., MILANOVIĆ S.D., Static turbulence promoter in cross-flow microfiltration of skim milk, Desalination, 2004, 163, 297–309.