Preparation and Characterization of PVDF-TiO2 Composite Membranes Blended with Different Mw of PVP for Oily Wastewater Treatment using Submerged Membrane System
DOI:
https://doi.org/10.11113/jt.v69.3396Keywords:
Polyvinylidene fluoride, polyvinylpyrrolidone, ultrafiltration, oily solution, hydrophilicityAbstract
Polyvinylidene fluoride (PVDF) hollow fiber ultrafiltration (UF) membranes consisted of TiO2 and different molecular weight (Mw) of polyvinylpyrrolidone (PVP) (i.e. 10, 24, 40 and 360 kDa) were prepared to treat synthesized oily wastewater. The membrane performances were characterized in terms of pure water flux, permeate flux and oil rejection while the membrane morphological properties were studied using SEM and AFM. PVDF-TiO2 composite membrane prepared from PVP40k was found as the optimum membrane due to its high flux and high rejection during filtration process, recording      45 L/m2.h and 80% respectively, when tested using 250 ppm oily solution under submerged condition. The experimental results demonstrated that with increasing Mw of PVP, PVDF-TiO2 membrane had higher protein rejection, smaller porosity and smoother surface layer. With increasing oil concentration from 250 to 1000 ppm, the permeate flux of the PVDF-PVP40k was obviously decreased while the oil rejection was gradually increased due to the additional selective layer formed on the membrane surface. Based on the findings, the PVDF-TiO2 membrane with PVP40k can be considered as a potential membrane for oily wastewater industry due to the high permeate flux and oil rejection.Â
References
Basri, H., Ismail, A. F. & Aziz, M. 2011. Polyethersulfone (PES)–silver Composite UF Membrane: Effect of Silver Loading and PVP Molecular Weight on Membrane Morphology and Antibacterial Activity. Desalination. 273: 72–80.
Chakrabarty, B., Ghoshal, A. K. & Purkait, M. K. 2008. Preparation, Characterization and Performance Studies of Polysulfone Membranes Using PVP as an Additive. J Membr. Sci. 315: 36–47.
Firman, L. R., Ochoa, N. A., Marchese, J. & Pagliero, C. L. 2013. Deacidification and Solvent Recovery of Soybean Oil by Nanofiltration Membranes. J Membr. Sci. 431: 187–196.
Jung, B., Yoon, J. K., Kim, B. & Rhee, H.-W. 2004. Effect of Molecular Weight of Polymeric Additives on Formation, Permeation Properties and Hypochlorite Treatment of Asymmetric Polyacrylonitrile Membranes. J Membr. Sci. 243: 45–57.
Knudsen, B. L., Hjelsvold, M., Frost, T. K., Svarstad, M. B. E., Grini, P. G., Willumsen, C. F., Torvik, H. & Statoil, A. 2004. Meeting the zero discharge challenge for produced water. Proceeding of the Seventh SPE International Conference on Health, Safety, and Environment in Oil and Gas Exploration and Production. Calgary, Alberta, Canada.
Lang, W.-Z., Shen, J.-P., Wei, Y.-T., Wu, Q.-Y., Wang, J. & Guo, Y.-J. 2013. Precipitation Kinetics, Morphologies, and Properties of Poly(vinyl butyral) Hollow Fiber Ultrafiltration Membranes with Respect to Polyvinylpyrrolidone Molecular Weight. Chem. Eng. J. 225: 25–33.
Langlet, M., Permpoon, S., Riassetto, D., Berthomé, G., Pernot, E. & Joud, J. C. 2006. Photocatalytic Activity and Photo-induced Superhydrophilicity of Sol–gel Derived TiO2 Films. J Photoch. Photobio. A. 181: 203–214.
Liu, F., Hashim, N. A., Liu, Y., Abed, M. R. M. & Li, K. 2011. Progress in the Production and Modification of PVDF Membranes. J Membr. Sci. 375: 1–27.
Oh, S. J., Kim, N. & Lee, Y. T. 2009. Preparation and Characterization Of PVDF/Tio2 Organic–inorganic Composite Membranes for Fouling Resistance Improvement. J Membr. Sci. 345: 13–20.
Painmanakul, P., Sastaravet, P., Lersjintanakarn, S. & Khaodhiar, S. 2010. Effect of Bubble Hydrodynamic and Chemical Dosage on Treatment of Oily Wastewater by Induced Air Flotation (IAF) Process. Chem. Engi. Res. Des. 88: 693–702.
Pan, Y., Wang, T., Sun, H. & Wang, W. 2012. Preparation and Application of Titanium Dioxide Dynamic Membranes in Microfiltration of Oil-in-Water Emulsions. Sep. Purif. Technol. 89: 78–83.
Rahimpour, A., Jahanshahi, M., Rajaeian, B. & Rahimnejad, M. 2011. TiO2 Entrapped Nano-composite PVDF/SPES Membranes: Preparation, Characterization, Antifouling and Antibacterial Properties. Desalination. 278: 343–353.
Šećerov Sokolović, R., Sokolović, S. & Šević, S. 2009. Oily Water Treatment Using a New Steady-state Fiber-bed Coalescer. J Hazard. Mater. 162: 410–415.
Wahi, R., Chuah, L. A., Choong, T. S. Y., Ngaini, Z. & Nourouzi, M. M. 2013. Oil Removal from Aqueous State by Natural Fibrous Sorbent: An Overview. Sep. Purif. Technol. 113: 51–63.
Wang, D., Li, K. & Teo, W. K. 1999. Preparation and Characterization of Polyvinylidene Fluoride (PVDF) Hollow Fiber Membranes. J Membr. Sci. 163: 211–220.
Xu, Z.-L., Chung, T.-S. & Huang, Y. 1999. Effect of Polyvinylpyrrolidone Molecular Weights on Morphology, Oil/Water Separation, Mechanical and Thermal Properties of Polyetherimide/Polyvinylpyrrolidone Hollow Fiber Membranes. J Appl. Polym. Sci. 74: 2220–2233.
Yi, X. S., Yu, S. L., Shi, W. X., Wang, S., Sun, N., Jin, L. M. & Ma, C. 2013. Estimation of Fouling Stages in Separation of Oil/Water Emulsion Using Nano-Particles Al2O3/TiO2 Modified PVDF UF Membranes. Desalination. 319: 38–46.
Yuan, Z. & Dan-Li, X. 2008. Porous PVDF/TPU Blends Asymmetric Hollow Fiber Membranes Prepared with the Use of Hydrophilic Additive PVP (K30). Desalination. 223: 438–447.
Zhang, Z., An, Q., Ji, Y., Qian, J. & Gao, C. 2010. Effect of Zero Shear Viscosity of the Casting Solution on the Morphology and Permeability of Polysulfone Membrane Prepared via the Phase-Inversion Process. Desalination. 260: 43–50.
Downloads
Published
Issue
Section
License
Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.
