TOSHIKAZU SUENAGA

Last Updated :2025/01/08

Affiliations, Positions
Hiroshima University, Assistant Professor
Web Site
https://polymer3.hiroshima-u.ac.jp/en/index.html
E-mail
suenagathiroshima-u.ac.jp
Other Contact Details
1-4-1 Kagamiyama Higashihiroshima Hiroshima Pref., JAPAN, 739-8527, Japan
TEL : (+81)82-424-4558 FAX : (+81)
Self-introduction
My research theme is including as follows: improvement of wastewater treatment using microbial communities, development of greenhouse gas mitigation technologies targeting nitrous oxide and methane, and analysis of environmental microbial communities and clarification of their physiological activities.

Basic Information

Major Professional Backgrounds

  • 2016/04/01, 2018/03/31, Japan Society for the Promotion of Science, Research Fellowship for Young Scientists (DC2)
  • 2018/04/16, 2019/03/31, Tokyo University of Agriculture and Technology, Chemical Engineering Department, Faculty of Engineering, Project Assistant Prfessor
  • 2019/04/01, 2021/03/31, Tokyo University of Agriculture and Technology, Global Innovation Research Institute, Project Assistant Professor

Educational Backgrounds

  • Tokyo University of Agriculture and Technology, Graduate School of Engineering, Department of Applied Chemistry, Japan, 2013/04/01, 2018/03/31
  • Tokyo University of Agriculture and Technology, Faculty of Engineering, Chemical Engineering Department, Japan, 2009/04/01, 2013/03/31

Academic Degrees

  • Tokyo University of Agriculture and Technology

Research Fields

  • Engineering;Process / Chemical engineering;Biofunction / Bioprocess
  • Environmental science;Environmental conservation;Environmental engineering and reduction of environmental burden

Research Keywords

  • Molecular microbiology
  • Nitrogen cycle
  • Global warming
  • Wastewater treatment
  • Chemical engineering
  • Environmental engineering
  • Environmental microbiology

Affiliated Academic Societies

  • THE SOCIETY OF CHEMICAL ENGINEERS, JAPAN
  • THE JAPANESE SOCIETY OF MICROBIAL ECOLOGY
  • JAPAN SOCIETY ON WATER ENVIRONMENT

Educational Activity

Course in Charge

  1. 2024, Undergraduate Education, Second Semester, Experimental Chemical Engineering
  2. 2024, Undergraduate Education, First Semester, Chemical Engineering Exercise II
  3. 2024, Undergraduate Education, Second Semester, Chemical Engineering Exercise III
  4. 2024, Undergraduate Education, Year, Graduation Thesis
  5. 2024, Graduate Education (Master's Program) , 3Term, Special Exercises on Chemical Engineering B
  6. 2024, Graduate Education (Master's Program) , 4Term, Special Exercises on Chemical Engineering B
  7. 2024, Graduate Education (Master's Program) , Academic Year, Special Study on Chemical Engineering
  8. 2024, Graduate Education (Master's Program) , Academic Year, Special Study on Chemical Engineering
  9. 2024, Graduate Education (Doctoral Program) , Academic Year, Special Study on Chemical Engineering

Research Activities

Academic Papers

  1. Quest for Nitrous Oxide-reducing Bacteria Present in an Anammox Biofilm Fed with Nitrous Oxide, Microbes and Environments, 39(1), 1-12, 20240328
    Link to Paper Search Results by DOI
  2. Application of Eco-Feed Produced by Aurantiochytrium sp. L3W Using Solid Food Waste for Producing Hirodai-dori Products Containing Omega-3 Fatty Acids, JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 57(1), 20241231
    Link to Paper Search Results by DOI
  3. Microaerophilic Activated Sludge System for Ammonia Retention toward Recovery from High-Strength Nitrogenous Wastewater: Performance and Microbial Communities, ENVIRONMENTAL SCIENCE & TECHNOLOGY, 57(37), 13874-13886, 20230907
    Link to Paper Search Results by DOI
  4. Valorization of Solid Food Waste as a Source of Polyunsaturated Fatty Acids Using Aurantiochytrium sp. L3W, WASTE AND BIOMASS VALORIZATION, 14(9), 2945-2956, 202309
    Link to Paper Search Results by DOI
  5. Exploring the Functions of Efficient Canonical Denitrifying Bacteria as N 2 O Sinks: Implications from 15 N Tracer and Transcriptome Analyses, Environmental Science and Technology, 56(16), 11694-11706, 20220802
    Link to Paper Search Results by DOI
  6. Low nitrous oxide concentration and spatial microbial community transition across an urban river affected by treated sewage, WATER RESEARCH, 216, 20220601
    Link to Paper Search Results by DOI
  7. N2O Reduction by Gemmatimonas aurantiaca and Potential Involvement of Gemmatimonadetes Bacteria in N2O Reduction in Agricultural Soils, Microbes and Environments, 37(2), 20220422
  8. Organic carbon determines nitrous oxide consumption activity of clade I and II nosZ bacteria: Genomic and biokinetic insights, WATER RESEARCH, 209, 20220201
    Link to Paper Search Results by DOI
  9. Nitrous oxide-sink capability of denitrifying bacteria impacted by nitrite and pH, CHEMICAL ENGINEERING JOURNAL, 428, 20220115
    Link to Paper Search Results by DOI
  10. Combination of N-15 Tracer and Microbial Analyses Discloses N2O Sink Potential of the Anammox Community, ENVIRONMENTAL SCIENCE & TECHNOLOGY, 55(13), 9231-9242, 20210706
    Link to Paper Search Results by DOI
  11. Metagenomic Insights Into Functional and Taxonomic Compositions of an Activated Sludge Microbial Community Treating Leachate of a Completed Landfill: A Pathway-Based Analysis, FRONTIERS IN MICROBIOLOGY, 12, 20210430
  12. Temperature and oxygen level determine N2O respiration activities of heterotrophic N2O-reducing bacteria: Biokinetic study, BIOTECHNOLOGY AND BIOENGINEERING, 118(3), 1330-1341, 20201211
  13. Enrichment, Isolation, and Characterization of High-Affinity N2O-Reducing Bacteria in a Gas-Permeable Membrane Reactor, Environmental Science & Technology, 53(20), 12101-12112, 20191015
  14. Biokinetic characterization and activities of N2O-reducing bacteria in response to various oxygen levels, Frontiers in Microbiology, 9, 20180410
  15. Influence of feedstock-to-inoculum ratio on performance and microbial community succession during solid-state thermophilic anaerobic co-digestion of pig urine and rice straw, Bioresource Technology, 252, 127-133, 20180301
  16. Exploration and enrichment of methane-oxidizing bacteria derived from a rice paddy field emitting highly concentrated methane, JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 130(3), 311-318, 202009
  17. Eco-compatible biochar mitigates volatile fatty acids stress in high load thermophilic solid-state anaerobic reactors treating agricultural waste, BIORESOURCE TECHNOLOGY, 309, 123366-123366, 202008
  18. Identification of a Metagenome-Assembled Genome of an Uncultured Methyloceanibacter sp. Strain Acquired from an Activated Sludge System Used for Landfill Leachate Treatment, MICROBIOLOGY RESOURCE ANNOUNCEMENTS, 9(32), 202008
  19. Complete Genome Sequence of Methylosinus sp. Strain C49, Methane-Oxidizing Bacterium Harboring phaABC Genes for Polyhydroxyalkanoate Synthesis, MICROBIOLOGY RESOURCE ANNOUNCEMENTS, 9(27), 202007
  20. Complete Genome Sequence of Pseudomonas putida Strain TS312, Harboring an HdtS-Type N-Acyl-Homoserine Lactone Synthase, Isolated from a Paper Mill, MICROBIOLOGY RESOURCE ANNOUNCEMENTS, 9(13), 202003
  21. Spatial and daily variations of nitrous oxide emissions from biological reactors in a full-scale activated sludge anoxic/oxic process, Journal of Bioscience and Bioengineering, 127(3), 333-339, 201903
  22. Draft Genome Sequence of Azospira sp. Strain I13, a Nitrous Oxide-Reducing Bacterium Harboring Clade II Type nosZ, MICROBIOLOGY RESOURCE ANNOUNCEMENTS, 6(20), 201805
  23. Counter-diffusion biofilms have lower N2O emissions than co-diffusion biofilms during simultaneous nitrification and denitrification: Insights from depth-profile analysis, WATER RESEARCH, 124, 363-371, 201711
  24. Efficacy of a high-pressure jet device for excess sludge reduction in a conventional activated sludge process: Pilot-scale demonstration, CHEMICAL ENGINEERING JOURNAL, 326, 78-86, 201710
  25. Nitrite oxidation kinetics of two Nitrospira strains: The quest for competition and ecological niche differentiation, JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 123(5), 581-589, 201705
  26. Free nitrous acid and pH determine the predominant ammonia-oxidizing bacteria and amount of N2O in a partial nitrifying reactor, APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 101(4), 1673-1683, 201702
  27. Effects of aeration and internal recycle flow on nitrous oxide emissions from a modified Ludzak-Ettinger process fed with glycerol, ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 22(24), 19562-19570, 201512
  28. Identification of a predominant effect on bacterial cell disruption and released organic matters by a high-pressure jet device, BIOCHEMICAL ENGINEERING JOURNAL, 101, 220-227, 201509
  29. High-pressure jet device for activated sludge reduction; Feasibility of sludge solubilization, BIOCHEMICAL ENGINEERING JOURNAL, 100, 1-8, 201508
  30. Abundance, transcription levels and phylogeny of bacteria capable of nitrous oxide reduction in a municipal wastewater treatment plant, JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 118(3), 289-297, 201409
  31. Immobilization of Azospira sp. strain I13 by gel entrapment for mitigation of N2O from biological wastewater treatment plants: Biokinetic characterization and modeling, Journal of Bioscience and Bioengineering, 126(2), 213-219, 2018

Awards

  1. 2018/09, Orugano Awards, Japan Society of Water Environment
  2. 2017/08, Excellent Poster Awards, Japanese Society of Microbial Ecology
  3. 2015/03, Kurita Awards, Japan Society of Water Environment

Social Activities

History as Committee Members

  1. A committee of journal topics, 2023/01, 2024/12, The Society of Chemical Engineers， Japan
  2. Secretary-general, 2021/06/01, 2023/05/31, Chugoku-Shikoku Branch， Japan Society on Water Environment
  3. Committee member, 2021/04/01, 2023/03/31, The Society of Chemical Engineers Japan， Branch of Chugoku-Shikoku Area
  4. Treasurer, 2021/04/01, 2023/03/31, Division of Environment， The Society of Chemical Engineers Japan