Application of AC/TiO2 Dynamic Membrane in Fouling Decline of Polymeric Membrane Support for Oily Wastewater Treatment

Document Type : Research Paper

Authors

Chemical Engineering Department, Babol Noshirvani University of Technology, Iran

Abstract

Oily wastewater is important environmental pollution which leads to irreparable damages to the environment. Ultrafiltration process is considered as a commonly used process is oily wastewater process. In the current study, two types of (AC/TiO2) dynamic membranes (pre-coated and self-forming dynamic membrane) was used for oily wastewater treatment to decrease fouling of ultrafiltration membrane. The pre-coated dynamic membrane decreased fouling of the of ultrafiltration membrane while the self-forming membrane intensified the membrane fouling after three cycles of filtration. The COD rejection rate obtained for self-forming dynamic membrane was 45% that is more than the pre-coated dynamic membrane and polymeric membrane, this result shows high separation efficiency for this membrane. The obtained result showed that the pre-coated (AC/TiO2) dynamic membrane can be considered as a good candidate to control the fouling effect of ultrafiltration membrane in oily wastewater treatment.
 

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[1]. Salahi A., Abbasi M. and Mohammadi T., “Permeate flux decline during UF of oily wastewater: Experimental and modeling,” Desalination, Vol. 251, No. 1-3, pp. 153-160, 2010.##
[2]. Pan Y. Q., Wang W., Wang T. H. and Yao P. J.: “Fabrication of carbon membrane and microfiltration of oil-in-water emulsion: an investigation on fouling mechanisms,” Journal of Separation and Purification Technology, Vol. 57, pp. 388–393, 2007.##
[3]. Zhong J., Sun X. J. and Wang C. L., “Treatment of oily wastewater produced from refinery processes using flocculation and ceramic membrane filtration,” Journal of Separation and Purification Technology, Vol. 32, pp. 93–98, 2003.##
[4]. Pan Y., Wang T., Sun H. and Wang W., “Preparation and application of titanium dioxide dynamic membranes in microfiltration of oil-in-water emulsions,” Journal of Separation and Purification Technology, Vol. 89, pp. 78–83, 2012.##
[5]. Yu L., Han M. and He F., “A review of treating oily wastewater,” Arabian Journal of Chemistry, pp. 1913-1922, 2017.##
[6]. Lu D., Cheng W., Zhang T., Lu X., Liu Q., Jiang J., Ma J., “Hydrophilic Fe2O3 dynamic membrane mitigating fouling of support ceramic membrane in ultrafiltration of oil/water emulsion,” Journal of Separation and Purification Technology, Vol. 165, pp. 1–9, 2016.##
[7]. Rahimpour A. and Madaeni S., “Improvement of performance and surface properties of nano-porous polyethersulfone (PES) membrane using hydrophilic monomers as additives in the casting solution,” Journal of Membrane Science, Vol. 360, pp. 371–379, 2010.##
[8]. Fu X., Yang H., Sun Huihua., Lu G. and Wu J., “The multiple roles of ethylenediamine modification at TiO2/activated carbon in determining adsorption and visible-light-driven photoreduction of aqueous Cr(VI),” Journal of Alloys and Compounds, Vol. 662, pp. 165-172, March 2016.##
[9]. Zhao Y., Tan Y., Wong F., Fane A. and Xu N., “Formation of dynamic membranes for oily water separation by crossflow filtration,” J. Sep. Purif. Technol. Vol. 44, pp. 212–220, 2005.##
[10]. Chen C. C. and Chiang B. H., “Formation and characteristics of zirconium ultrafiltration dynamic membranes of various pore sizes,” J. Membr. Sci. Vol. 143, pp. 65–73, 1998.##
[11]. APHA/AWWA/WEF, Standard Methods for the Examination of Water and Wastewater, 19th ed., American Public Health Association/American Water Works Association/Water Environmental Federation, Washington, DC, USA. 1995.##
[12]. Jung Y. C. and Bhushan B., “Wetting behavior of water and oil droplets in threephase interfaces for hydrophobicity/philicity and oleophobicity/philicityy,” Langmuir Journal, Vol. 25, pp. 14165–14173, 2009.##
[13]. Meng F., Liao B., Liang S., Yang F., Zhang H. and Song L., “Morphological visualization, componential characterization and microbiological identification of membrane fouling in membrane bioreactors (MBRs),” J. Membr. Sci. Vol. 361, pp. 1–14, 2010.##
[14]. Wang X., Hu Zh., Chen Y., Zhao G., Liu Y. and Wen Z., “A novel approach towards high-performance composite photocatalyst of TiO2 deposited on activated carbon,” Appl. Surf. Sci. Vol. 255, pp. 3953-3958, 2009.##
[15]. Huang D., Miyamoto Y., Ding J., Gu J., Zhu S., Liu Q., Fan T., Guo Q. and Zhang D., “A new method to prepare high-surface-area N–TiO2/activated carbon:, Mater. Lett. Vol. 65, pp. 326-328, 2011.##