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Manuscript ID : JEST-1704-3549 (R1) Visit : 112 Page: 1 - 12

10.22034/jest.2019.26449.3549

Article Type: Original Research

Investigation on Application of Simultaneous UV Irradiation Ultrafiltration of Extracellular Polymeric Substances Extracted from Membrane Bioreactor and Its Effect on PVDF/TiO2 Membrane Mitigation

Subject Areas : BIotecnology

Maryam Tavakolmoghadam 1 (‌‌Assistant Professor, Technology Division, Research Institute of Petroleum Industry, Tehran, Iran.*(Corresponding Author))
Seyed Mohammad Ali Safavi 2 (‌Assistant Professor, Refinery Division, Research Institute of Petroleum Industry, Tehran, Iran.)

Received: 2017-04-26 Accepted : 2017-10-18 Published : 2019-10-23

Keywords: ultraviolet light, extracellular polymeric substances, fouling, membrane bioreactor, TiO2,

Abstract :

Background and Objective: The object of this study is to investigate the effect of surface modification of Polyvinylidene fluoride (PVDF) membrane on filtration performance and reduction of fouling in membrane bioreactors (MBRs). This study was done based on the photocatalytic properties of TiO2 nanoparticles under ultraviolet light irradiation and to assess the effect of reducing membrane fouling in real EPS extraction of submerged membrane bioreactor as the main foulant. Method: Considering photocatalytic properties of TiO2 nanoparticles under ultraviolet light irradiation, PVDF/TiO2 performance in filtration of extracellular polymeric substances extracted (EPS) from membrane bioreactor which was used for oil refinery wastewater treatment and has been evaluated and compared with PVDF membrane without TiO2 nanoparticles. Findings: The results showed improvement of permeation flux and flux recovery ratio of nano-composite PVDF/TiO2 under UV radiation due to membrane super hydrophilicity which results in irreversible membrane resistance of EPS UV irradiated to 0.36×1012 m-1 and PVDF/TiO2 membrane total resistance reduction to about 44% comparing to pure PVDF membrane. According to the results by ultrafiltration combined with UV, the flux recovery of about 90% for PVDF/TiO2 membrane can be achieved. Discussion and Conclusions: Considering EPS as the main foulant of refinery MBRs, simultaneous UV irradiation ultrafiltration of EPS extracted from membrane bioreactor by PVDF/TiO2 membranes can be considered as an effective approached in fouling reduction research in future.  

References:


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  1. Judd, S., The MBR book. 1 ed. 2006: Elsevier.
    2.
  2. Zhang, M., et al., Effects of hydrophilicity/hydrophobicity of membrane on membrane fouling in a submerged membrane bioreactor. J. Membr. Sci. , 2015. 175p. 59-67.
    3.
  3. Barzin, J. and Esmaeili, M., Memberane fouling and regeneration methods. 2009: Iran Polymer and Petrochemical Institute (In Persian).
    4.
  4. Kochkodan V., Hilal N., Ploymeric membranes: Surface modification for minimizing (bio)colloidal fouling. Adv. Colloid Interface Sci., 2014. 206p. 116–140.
    5.
  5. Kim, J. and Bruggen, V., The use of nanoparticles in polymeric and ceramic membrane structures: Review of manufacturing procedures and performance improvement for water treatment. T Environ. Pollut., 2010. 158p. 2335-2349.
    6.
  6. NgL. Y. , Leo C. P. , Hilal N. , Polymeric membranes incorporated with metal/metal oxide nanoparticles: A comprehensive review. Desalination 2013. 308p. 15-33.
    7.
  7. Diebold, U., The surface science of titanium dioxide. Surf. Sci. Rep., 2003. 48: p. 53-229.
    8.
  8. Le-Clech, P. and Jefferson, B., Critical flux determination by the flux-step method in a submerged membrane bioreactor. J. Membr. Sci., 2003. 227(1-2): p. 81-93.
    9.
  9. Drews, A., Membrane Fouling in Membrane Bioreactors—Characterisation, Contradictions, Cause and Cures,. J. Membr. Sci. , 2010. 363p. 1-28.
    10.
  10. Lin, H., et al., A critical review of extracellular polymeric substances (EPSs) in membrane bioreactors: Characteristics, roles in membrane fouling and control strategies. Journal of Membrane Science, 2014. 460: p. 110-125.
    11.
  11. Clech, P. L., Jefferson, B., Chang, I. and Judd, S., Critical flux determination by the flux-step method in a submerged membrane bioreactor. Journal of Membrane Science, 2003. 227(1–2): p. 81-93.
    12.
  12. Yamato, N., Kimura, K., Miyoshi, T. and Watanabe, Y., Difference in membrane fouling in membrane bioreactors (MBRs) caused by membrane polymer materials. Journal of Membrane Science, 2006. 280(1–2): p. 911-919.
    13.
  13. Tavakol Moghadam, M. et  al., Improved antifouling properties of TiO2/PVDF nanocomposite membranes in UV-coupled ultrafiltration. J. APPL. POLYM. SCI. , 2015. 132(21): p. 41731-41731.
    14.
  14. Zhang, G., et al., Novel polysulfone hybrid ultrafiltration membrane prepared with TiO2-g-HEMA and its antifouling characteristics. Journal of Membrane Science, 2013. 436: p. 163-173.
    15.
  15. Mulder , M., Basic principles of membrane technology. 1996: Kluwer Academic Publishers.
    16.
  16. Okhovat A., Ghafarian V., Ehsan Saljooghi, polymeric membrane fabrication, modification and characterization. 2013: Iranian Students Booking Agency (In Persian).
    17.
  17. Razmjou, A., Mansouri, J. and Chen, V., The effects of mechanical and chemical modification of TiO2 nanoparticles on the surface chemistry, structure and fouling performance of PES ultrafiltration membranes. Journal of Membrane Science, 2011. 378(1–2): p. 73-84.
    18.
  18. Rahimpour, A., Madaeni, S. S., Taheri, A. H. and Mansourpnanh, Y., Coupling TiO2 nanoparticles with UV irradiation for modification of polyethersulfone ultrafiltration membranes. J. Membr. Sci. , 2008. 313p. 158-169.
    19.
  19. Mendret, J., Brosillon S. , Hydrophilic composite membranes for simultaneous separation and photocatalytic degradation of organic pollutants Sep. Purif. Technol., 2013. 111: p. 9-19.
    20.
  20. X. Bian, Yang X. , X. Lu, Effect of Nano-TiO2 Particles on the Performance of PVDF, PVDF-g-(Maleic anhydride), and PVDF-g-Poly(acryl amide) Membranes. Ind. Eng. Chem. Res., 2011. 50: p. 12113–12123.
    21.
  21. Teow, Y. H., Ahmad, A. L., Lim, J. K. and Ooi, B. S., Preparation and characterization of PVDF/TiO2 mixed matrix membrane via in situ colloidal precipitation method. Desalination, 2012. 295: p. 61-69.
    22.
  22. Lim, B., Choi, B., Yu, S. and Lee, C., Effects of operational parameters on aeration on/off time in an intermittent aeration membrane bioreactor. Desalination, 2007. 202(1): p. 77-82.
    23.
  23. Salgin, S., Salgin, U. and Bahadir, S., Zeta Potentials and Isoelectric Points of Biomolecules: The Effects of Ion Types and Ionic Strengths. Int. J. Electrochem. Sci., 2012. 7: p. 12404 – 12414.
    24.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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