So ISHIZAKI / D4
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SoIshizaki

Research topic

Characteristics of the bacteria causing severe membrane fouling in membrane bioreactor treating municipal wastewater

Research abstract

Membrane bioreactors (MBRs) have emerged as one of the innovative technologies in advanced wastewater treatment, but membrane fouling is the bottleneck for widespread use of MBRs. Especially in the application for microfilter and ultrafilter membrane, biofouling is one of the most serious operational problems in membrane application. Microbial activity has been regarded as the most important factor on of membrane fouling. However, there is little information on which bacteria in MBRs have a significant potential to lead membrane fouling and their characters. The purpose of this study is evaluations of bacterial potential on membrane fouling, identification of their characteristics.

Publication
  1. Oxidation of glucose by syntrophic association between Geobacter and hydrogenotrophic methanogens in microbial fuel cell
    Oyiwona, G.E., Ogbonna, J., Anyanwu, C.U., Ishizaki, S., Kimura, Z., Okabe, S.
    Biotechnology Letters, 39(2), 253-259.
  2. Impact of anodic respiration on biopolymer production and consequent membrane fouling
    Ishizaki, S., Terada, K., Miyake, H., Okabe, S.
    Environmental Science & Technology, 2016, 50(17), 9515-9523.
  3. Membrane fouling potentials and cellular properties of bacteria isolated from fouled membranes in a MBR treating municipal wastewater
    Ishizaki, S., Fukushima, T., Ishii S., Okabe, S.
    Water Research, 2016, 100, 448-457.
  4. External CO2 and water supplies for enhancing electrical power generation of air-cathode microbial fuel cells
    Ishizaki, S., Fujiki, I., Sano, D. and Okabe, S.
    Environmental Science and Technology, 2014, 48(19), 11204-11210.
International conference presentations
  1. Evaluations of biofouling potential of the bacteria isolated form the MBR treating municipal wastewater by a corss-flow filtration system
    So Ishizaki
    2nd International Doctraol Symposium with Partner Universities.
    Hokkaido University, Sapporo, Japan.
    Oct. 24-25th, 2013
  2. Improvement of MFC performance by increasing CO2 partial pressure in a cathode chamber
    Ishizaki, S., Fujiki, I., Sano, D., and Okabe, S.
    The 4th IWA-ASPIRE.
    Tokyo, Japan.
    Oct. 2-6, 2011.
  3. Improvement of air-cathode MFCs performance by increasing CO2 partial pressure in a cathode chamber
    Ishizaki, S., Fujiki, I., Sano, D., and Okabe, S.
    3rd International Microbial Fuel Cell Conference.
    Leeuwarden, The Netherlands.
    Jun. 6th-8th, 2011.
Awards
2016 November Poster award, The Society for Biotechnology, Japan, Northern Japan Branch Sapporo Symposium