All Stories

  1. Effects of Applied Voltage on the Microbial Communities at the Anode and Cathode During Methane Fermentation

    Article • Fermentation, August 2025, MDPI AG

    Mitsuhiko Koyama

  2. Effect of bubble size on microbial community in intermittently-aerated activated sludge process in wastewater treatment

    Article • Process Biochemistry, May 2025, Elsevier

    Mitsuhiko Koyama

  3. Treatment of synthetic slaughterhouse wastewater using integrated UV/H2O2/TiO2 photocatalytic advanced oxidation process enhanced by yeast‐assisted dissolved air floatation

    Article • Water Environment Research, April 2025, Wiley

    Mitsuhiko Koyama

  4. Advanced anaerobic digestion by co-immobilization of anaerobic microbes and conductive particles in hydrogel for enhanced methane production performance

    Article • Biochemical Engineering Journal, January 2025, Elsevier

    Mitsuhiko Koyama

  5. Integrated nutrient recycling: Ammonia recovery from thermophilic composting of shrimp aquaculture sludge via self-heated bench-scale reactor and mango plant growth enhancement by the compost

    Article • Waste Management, May 2024, Elsevier

    Mitsuhiko Koyama

  6. Utilization of first-order mass action kinetic models to elucidate the mechanism of methane fermentation of glycerol

    Article • Biochemical Engineering Journal, November 2023, Elsevier

    Mitsuhiko Koyama

  7. Combined effects of various conductive materials and substrates on enhancing methane production performance

    Article • Biomass and Bioenergy, November 2023, Elsevier

    Mitsuhiko Koyama

  8. The effect of calcium hydroxide addition on enhancing ammonia recovery during thermophilic composting in a self-heated pilot-scale reactor

    Article • Waste Management, July 2023, Elsevier

    Mitsuhiko Koyama

  9. Effect of oxygen deficiency on organic matter decomposition during the early stage of composting

    Article • Waste Management, April 2023, Elsevier

    Mitsuhiko Koyama

  10. Enhancing methane recovery by intermittent substrate feeding and microbial community response in anaerobic digestion of glycerol

    Article • Renewable Energy, March 2023, Elsevier

    Mitsuhiko Koyama

  11. Effect of storage time on organic matter decomposition during composting by inoculating enriched microorganisms

    Article • Environmental Technology & Innovation, February 2023, Elsevier

    Mitsuhiko Koyama

  12. Complexity of acclimatization substrate affects anaerobic digester microbial community response to organic load shocks

    Article • Environmental Research, January 2023, Elsevier

    Mitsuhiko Koyama

  13. Comparison between Conventional Treatment Processes and Advanced Oxidation Processes in Treating Slaughterhouse Wastewater: A Review

    Article • Water, November 2022, MDPI AG

    Mitsuhiko Koyama

  14. Effects of oxygen supply rate on organic matter decomposition and microbial communities during composting in a controlled lab-scale composting system

    Article • Waste Management, November 2022, Elsevier

    Mitsuhiko Koyama

  15. Co-occurrence network analysis reveals loss of microbial interactions in anaerobic digester subjected to repeated organic load shocks

    Article • Water Research, August 2022, Elsevier

    Mitsuhiko Koyama

  16. Effect of hydrothermal treatment on organic matter degradation, phytotoxicity, and microbial communities in model food waste composting

    Article • Journal of Bioscience and Bioengineering, April 2022, Elsevier

    Mitsuhiko Koyama

  17. Influence of lignocellulosic components on the anaerobic digestibility of aquatic weeds: Comparison with terrestrial crops

    Article • Industrial Crops and Products, April 2022, Elsevier

    Mitsuhiko Koyama

  18. Effect of enzymatic pre-treatment on thermophilic composting of shrimp pond sludge to improve ammonia recovery

    Article • Environmental Research, March 2022, Elsevier

    Mitsuhiko Koyama

  19. Short-term changes in the anaerobic digestion microbiome and biochemical pathways with changes in organic load

    Article • The Science of The Total Environment, March 2022, Elsevier

    Mitsuhiko Koyama

  20. Inoculation of Neurospora sp. for improving ammonia production during thermophilic composting of organic sludge

    Article • The Science of The Total Environment, January 2022, Elsevier

    Mitsuhiko Koyama

  21. Effect of seeding materials on organic matter degradation and microbial community succession during model organic waste composting

    Article • Biocatalysis and Agricultural Biotechnology, October 2021, Elsevier

    Mitsuhiko Koyama

  22. Effect of Aeration Methods on the Organic Matter Degradation, Microbial Community and Their Catabolic Function During Composting

    Article • Waste and Biomass Valorization, September 2021, Springer Science + Business Media

    Mitsuhiko Koyama

  23. Mechanism of cell proliferation during starvation in a continuous stirred tank anaerobic reactor treating food waste

    Article • Bioprocess and Biosystems Engineering, May 2021, Springer Science + Business Media

    Mitsuhiko Koyama

  24. Tolerance of Tetraselmis tetrathele to High Ammonium Nitrogen and Its Effect on Growth Rate, Carotenoid, and Fatty Acids Productivity

    Article • Frontiers in Bioengineering and Biotechnology, January 2021, Frontiers

    Mitsuhiko Koyama

  25. Novel wet-solid states serial anaerobic digestion process for enhancing methane recovery of aquatic plant biomass

    Article • The Science of The Total Environment, August 2020, Elsevier

    Mitsuhiko Koyama

  26. Ammonia recovery and microbial community succession during thermophilic composting of shrimp pond sludge at different sludge properties

    Article • Journal of Cleaner Production, April 2020, Elsevier

    Mitsuhiko Koyama

  27. Conditions for continuous cultivation of Chlorella sorokiniana and nutrient removal from anaerobic digestion effluent of aquatic macrophytes

    Article • International Biodeterioration & Biodegradation, April 2020, Elsevier

    Mitsuhiko Koyama

  28. Characterizing the microbial community involved in anaerobic digestion of lipid-rich wastewater to produce methane gas

    Article • Anaerobe, February 2020, Elsevier

    Mitsuhiko Koyama

  29. Effect of aeration method on organic matter degradation and ammonia emission of composting in a laboratory-scale reactor

    Article • Journal of Material Cycles and Waste Management, December 2019, Springer Science + Business Media

    Mitsuhiko Koyama

  30. Seasonal Changes in the Chemical Composition and Anaerobic Digestibility of Harvested Submerged Macrophytes

    Article • BioEnergy Research, December 2019, Springer Science + Business Media

    Mitsuhiko Koyama

  31. Changes in the microbial community during the acclimation process of anaerobic digestion for treatment of synthetic lipid-rich wastewater

    Article • Journal of Biotechnology, December 2019, Elsevier

    Mitsuhiko Koyama

  32. Lactic acid bacteria modulate organic acid production during early stages of food waste composting

    Article • The Science of The Total Environment, October 2019, Elsevier

    Mitsuhiko Koyama

  33. Effect of Ca(OH)2 dosing on thermophilic composting of anaerobic sludge to improve the NH3 recovery

    Article • The Science of The Total Environment, June 2019, Elsevier

    Mitsuhiko Koyama

  34. Succession of microbial community during vigorous organic matter degradation in the primary fermentation stage of food waste composting

    Article • The Science of The Total Environment, June 2019, Elsevier

    Mitsuhiko Koyama

  35. Enhanced fermentative hydrogen production from industrial wastewater using mixed culture bacteria incorporated with iron, nickel, and zinc-based nanoparticles

    Article • Water Research, March 2019, Elsevier

    Mitsuhiko Koyama

  36. Production of high-concentration bioethanol from cassava stem by repeated hydrolysis and intermittent yeast inoculation

    Article • International Biodeterioration & Biodegradation, March 2019, Elsevier

    Mitsuhiko Koyama

  37. Nutrient removal from anaerobic digestion effluents of aquatic macrophytes with the green alga, Chlorella sorokiniana

    Article • Biochemical Engineering Journal, February 2019, Elsevier

    Mitsuhiko Koyama

  38. Effect of temperature on thermophilic composting of aquaculture sludge: NH3 recovery, nitrogen mass balance, and microbial community dynamics

    Article • Bioresource Technology, October 2018, Elsevier

    Mitsuhiko Koyama

  39. Enhancement of microalgal production through bacterial mineralization of ethylene glycol

    Article • Journal of Environmental Biology, September 2018, Triveni Enterprises

    Mitsuhiko Koyama

  40. High ammonia tolerance on growth rate of marine microalga Chlorella vulgaris

    Article • Journal of Environmental Biology, September 2018, Triveni Enterprises

    Mitsuhiko Koyama

  41. Modern lake ecosystem management by sustainable harvesting and effective utilization of aquatic macrophytes

    Article • Limnology, September 2018, Springer Science + Business Media

    Mitsuhiko Koyama

  42. Anaerobic co-digestion of alkali-pretreated submerged macrophytes and acidified food waste for reduction of neutralizing agents

    Article • International Biodeterioration & Biodegradation, November 2017, Elsevier

    Mitsuhiko Koyama

  43. Effect of operating temperature on anaerobic digestion of the Brazilian waterweed Egeria densa and its microbial community

    Article • Anaerobe, October 2017, Elsevier

    Mitsuhiko Koyama

  44. Effect of alkaline pretreatment on mesophilic and thermophilic anaerobic digestion of a submerged macrophyte: Inhibition and recovery against dissolved lignin during semi-continuous operation

    Article • Bioresource Technology, August 2017, Elsevier

    Mitsuhiko Koyama

  45. Inhibition of anaerobic digestion by dissolved lignin derived from alkaline pre-treatment of an aquatic macrophyte

    Article • Chemical Engineering Journal, March 2017, Elsevier

    Mitsuhiko Koyama

  46. Enhancing anaerobic digestibility of lignin-rich submerged macrophyte using thermochemical pre-treatment

    Article • Biochemical Engineering Journal, July 2015, Elsevier

    Mitsuhiko Koyama

  47. Anaerobic digestion of submerged macrophytes: Chemical composition and anaerobic digestibility

    Article • Ecological Engineering, August 2014, Elsevier

    Mitsuhiko Koyama