Purification of Model Dairy Wastewaters by Ozone, Fenton Pre-treatment and Membrane Filtration

  • Mihály Zakar
    Affiliation

    Institute of Food Sciences, Faculty of Agricultural and Food Sciences, Széchenyi István University, H-9200 Mosonmagyaróvár, Lucsony út 15–17., Hungary
    Department of Process Engineering, Faculty of Engineering, University of Szeged, H-6725 Szeged, Moszkvai krt. 9, Hungary

  • Dániel Imre Farkas
    Affiliation

    Department of Process Engineering, Faculty of Engineering, University of Szeged, H-6725 Szeged, Moszkvai krt. 9, Hungary

  • Erika Hanczné Lakatos
    Affiliation

    Institute of Food Sciences, Faculty of Agricultural and Food Sciences, Széchenyi István University, H-9200 Mosonmagyaróvár, Lucsony út 15–17., Hungary

  • Gábor Keszthelyi-Szabó
    Affiliation

    Department of Process Engineering, Faculty of Engineering, University of Szeged, H-6725 Szeged, Moszkvai krt. 9, Hungary

  • Zsuzsanna László
    Affiliation

    Department of Process Engineering, Faculty of Engineering, University of Szeged, H-6725 Szeged, Moszkvai krt. 9, Hungary
    Institute of Environmental Science and Technology, Faculty of Agricultural and Food Sciences, University of Szeged, H-6720 Szeged, Tisza Lajos krt. 132, Hungary

Abstract

This study aimed to investigate the effect of ozone and Fenton-reaction as a pre-treatment before ultrafiltration of model dairy waste waters containing sodium caseinate. Filtration resistances and pollutant retentions were determined and compared. It was found, that both pre-treatment increased the retention, achieving almost 100 % pollutant elimination efficiency after short term pre-oxidation. The effect of Fe-ion concentration on Fenton pretreatment efficiency also was examined, and it was found that higher concentration resulted in decreased filtration resistances, revealing that coagulation-flocculation effect of reactants has dominant role in the protein separation efficiency. The presence of lactose also affects the pollutant removal efficiency, it promotes fouling in presence of Fenton reagents.

Keywords: membrane separation, fouling, dairy waste water, ozone, Fenton reaction
Published online
2020-05-15
How to Cite
Zakar, M., Farkas, D. I., Hanczné Lakatos, E., Keszthelyi-Szabó, G., László, Z. “Purification of Model Dairy Wastewaters by Ozone, Fenton Pre-treatment and Membrane Filtration”, Periodica Polytechnica Chemical Engineering, 64(3), pp. 357-363, 2020. https://doi.org/10.3311/PPch.15046
Section
Articles