排水処理施設からの亜酸化窒素生成抑制を担う細菌群の生理生態の解明とその応用

• Project/Area Number: 14J08245
• Research Category: Grant-in-Aid for JSPS Fellows
• Allocation Type: Single-year Grants
• Section: 国内
• Research Field: Environmental engineering and reduction of environmental burden
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: 宋 康 東京農工大学, 大学院工学研究院, 特別研究員(PD)
• Project Period (FY): 2014-04-25 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥1,700,000 (Direct Cost: ¥1,700,000); Fiscal Year 2015: ¥800,000 (Direct Cost: ¥800,000); Fiscal Year 2014: ¥900,000 (Direct Cost: ¥900,000)
• Keywords: Nitrous oxide / GHG mitigation / wastewater treatment / Nitrous oxide reduction / Gene expression level / anaerobically digested / sludge dewaterability / zero valent iron / N2O-reducing bacteria / aeration rate / internal recycle / MLE process

Outline of Annual Research Achievements

This year, I got Ph.D degree under the title as “Significance of bacteria community and operation conditions on nitrous oxide emission from a biological nitrogen removal system”.The basically idea of this study is to accelerate nitrous oxide (N2O) reduction. In this study, my achievements are: (1) I showed nosZ mRNA as a good indicator for N2O-reducing activity; (2) I identified N2O-reducing bacteria in our reactors’ system; (3) Combined the long-term reactor’s operation and functional analysis, I suggested optimal operation conditions for low N2O emission.

After I got Ph.D degree from Tokyo University of Agriculture and Technology, I visited to the Advanced Water Management Centre (AWMC), University of Queensland (UQ), which is a world-class research center about wastewater treatment technology. What I have learned there are: (1). Using free nitric acid (FNA)-based technology to achieve simultaneous nitrification and denitrification (SND) during biological nitrogen removal process. (2). Improving dewaterability of anaerobically digested sludge by innovative methods (combined conditioning with persulfate and zero-valent iron; combined zero valent iron and hydrogen peroxide conditioning).

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] Role of oxidants in enhancing dewaterability of anaerobically digested sludge through Fe (II) activated oxidation processes: hydrogen peroxide versus persulfate (2016)
  • Author(s): Kang Song, Xu Zhou, Yiqi Liu, Yanyan Gong, Beibei Zhou, Dongbo Wang, and Qilin Wang
  • Journal Title: Scientific Reports Volume: 6 Issue: 1 Pages: 1-9
  • DOI: 10.1038/srep24800
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Improving dewaterability of anaerobically digested sludge by combination of persulfate and zero valent iron (2016)
  • Author(s): Kang Song, Xu Zhou, Yiqi Liu, Guo-Jun Xie, Dongbo Wang, Tingting Zhang, Chunshuang Liu, Peng Liu, Beibei Zhou, Qilin Wang
  • Journal Title: Chemical Engineering Journal Volume: 295 Pages: 436-442
  • DOI: 10.1016/j.cej.2016.03.064
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Effects of aeration and internal recycle flow on nitrous oxide emissions from a Modified Ludzak Ettinger process fed with glycerol (2015)
  • Author(s): Kang Song，Toshikazu Suenaga, Willie F. Harper Jr., Tomoyuki Hori, Shohei Riya, Masaaki Hosomi, Akihiko Terada
  • Journal Title: Environmental Science and Pollution Research Volume: 22 Issue: 24 Pages: 19562-19570
  • DOI: 10.1007/s11356-015-5129-8
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Impact of carbon sources on nitrous oxide emission and microbial community structure in an anoxic/oxic activated sludge system (2015)
  • Author(s): Kang SONG，Willie F. Harper Jr., Tomoyuki Hori, Shohei Riya, Masaaki Hosomi, Akihiko Terada
  • Journal Title: Clean Technologies and Environmental Policy Volume: 17 Issue: 8 Pages: 2375-2385
  • DOI: 10.1007/s10098-015-0979-9
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Effect of carbon sources on nitrous oxide emission in a Modified Ludzak Ettinger process (2015)
  • Author(s): Kang SONG，Shohei Riya, Masaaki Hosomi, Akihiko Terada,
  • Journal Title: Water Science and Technology Volume: 72 Issue: 4 Pages: 572-578
  • DOI: 10.2166/wst.2015.250
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Abundance, transcription levels and phylogeny of bacteria capable of nitrous oxide reduction in a municipal wastewater treatment plant. (2014)
  • Author(s): Kang SONG，Suenaga, T., Hamamoto, A., Satou, K., Riya, S., Hosomi, M., Terada, A.
  • Journal Title: Journal of Bioscience and Bioengineering. Volume: 118 Issue: 3 Pages: 289-297
  • DOI: 10.1016/j.jbiosc.2014.02.028
  • Peer Reviewed
• [Presentation] Effect of aeration rate and internal recycle flow rate on nitrous oxide emission in a Modified Ludzak Ettinger process fed with glycerol (2015)
  • Author(s): Kang Song, Shohei Riya, Akihiko Terada, Masaaki Hosomi.
  • Organizer: IWA- Nutrient Removal and Recovery: moving innovation into practice, Poland
  • Place of Presentation: Gdansk, Poland
  • Year and Date: 2015-05-18
  • Int'l Joint Research
• [Presentation] Effects of aeration and internal recycle flow on nitrous oxide emission in a Modified Ludzak Ettinger process. (2015)
  • Author(s): Kang Song,
  • Organizer: 2h IWA-Malaysia Young Water Professionals conference, Malaysia
  • Place of Presentation: Malaysia
  • Year and Date: 2015-03-17 – 2015-03-20
• [Presentation] Effect of carbon sources on nitrous oxide emission in a Modified Ludzak Ettinger process. (2014)
  • Author(s): Kang Song,
  • Organizer: 9h IWA-International symposium on waste management problems in Agro-Industries,
  • Place of Presentation: Kochi University ( Nankoku, Kochi, Japan)
  • Year and Date: 2014-11-24 – 2014-11-26