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Digestion Performance and Microbial Metabolic Mechanism in Thermophilic and Mesophilic Anaerobic Digesters Exposed to Elevated Loadings of Organic Fraction of Municipal Solid Waste

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  • Yiming Gao

    (College of Engineering, Northeast Agricultural University, Harbin 150030, China
    Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China)

  • Xiaoying Kong

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China)

  • Tao Xing

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China)

  • Yongming Sun

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China)

  • Yi Zhang

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Xingjian Luo

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Yong Sun

    (College of Engineering, Northeast Agricultural University, Harbin 150030, China)

Abstract

Mesophilic and thermophilic anaerobic digestion reactors (MR and TR) for the organic fraction of municipal solid waste (OFMSW) were tested to reveal the differential microbial responses to increasing organic loading rate (OLR). MR exhibited faster adaptation and better performance at an OLR range of 1.0–2.5 g VS·L −1 ·d −1 , with average profiles of a biogas yield of 0.38 L/gVS added *d at 0.5 g/L*d OLR and 0.69 L/gVS added *d at 2.5 g/L*d OLR, whereas TR had a biogas yield of 0.07 L/gVS added *d at 0.5 g/L*d OLR and 0.44 L/gVS added *d at 2.5 g/L*d OLR. The pyrosequencing results of amplicons revealed the microbial mechanisms of OFMSW anaerobic digestion. Larger shifts in the bacteria composition were observed in the TR with OLR elevation. For methanogens in both reactors, Methanothrix dominated in the MR while Methanosarcina was favored in the TR. Moreover, analysis of the mode and efficiency of metabolism between the MR and TR demonstrated different performances with more efficiency related to the limiting hydrolytic acid step.

Suggested Citation

  • Yiming Gao & Xiaoying Kong & Tao Xing & Yongming Sun & Yi Zhang & Xingjian Luo & Yong Sun, 2018. "Digestion Performance and Microbial Metabolic Mechanism in Thermophilic and Mesophilic Anaerobic Digesters Exposed to Elevated Loadings of Organic Fraction of Municipal Solid Waste," Energies, MDPI, vol. 11(4), pages 1-12, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:952-:d:141452
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    References listed on IDEAS

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    1. Murphy, J.D. & McKeogh, E., 2004. "Technical, economic and environmental analysis of energy production from municipal solid waste," Renewable Energy, Elsevier, vol. 29(7), pages 1043-1057.
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    Cited by:

    1. Fuli Yang & Wenzhe Li & Mingchao Sun & Qiang Li & Mengyi Wang & Yong Sun, 2018. "Improved Buffering Capacity and Methane Production by Anaerobic Co-Digestion of Corn Stalk and Straw Depolymerization Wastewater," Energies, MDPI, vol. 11(7), pages 1-12, July.
    2. Kessara Seneesrisakul & Twarath Sutabutr & Sumaeth Chavadej, 2018. "The Effect of Temperature on the Methanogenic Activity in Relation to Micronutrient Availability," Energies, MDPI, vol. 11(5), pages 1-17, April.
    3. Spyridon Achinas & Johan Horjus & Vasileios Achinas & Gerrit Jan Willem Euverink, 2019. "A PESTLE Analysis of Biofuels Energy Industry in Europe," Sustainability, MDPI, vol. 11(21), pages 1-24, October.
    4. Spyridon Achinas & Gerrit Jan Willem Euverink, 2019. "Feasibility Study of Biogas Production from Hardly Degradable Material in Co-Inoculated Bioreactor," Energies, MDPI, vol. 12(6), pages 1-11, March.
    5. Spyridon Achinas & Gerrit Jan Willem Euverink, 2019. "Effect of Combined Inoculation on Biogas Production from Hardly Degradable Material," Energies, MDPI, vol. 12(2), pages 1-13, January.
    6. Fernando Canul Bacab & Elda España Gamboa & Juan Enrique Ruiz Espinoza & Rosa M Leal-Bautista & Raúl Tapia Tussell & Jorge Domínguez Maldonado & Blondy Canto Canché & Liliana Alzate-Gaviria, 2020. "Two Phase Anaerobic Digestion System of Municipal Solid Waste by Utilizing Microaeration and Granular Activated Carbon," Energies, MDPI, vol. 13(4), pages 1-19, February.
    7. Dimitar Karakashev & Yifeng Zhang, 2018. "BioEnergy and BioChemicals Production from Biomass and Residual Resources," Energies, MDPI, vol. 11(8), pages 1-6, August.

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