LAPSE:2023.33087
Published Article
LAPSE:2023.33087
Links between Process Performance and Microbial Community of Pennisetum Hybrid Co-Digested with Municipal Solid Waste
April 20, 2023
Abstract
In this study, the links between performance and microbial communities were investigated with municipal solid waste (MSW) at two feedstock ratios and eight organic loading rates (OLRs). The co-digestion systems were stably operated at OLRs of 2.0−6.0 g VS/(L·d). The performance of the co-digestion system varied with the feedstock ratio. Compared with the 50:50 (hybrid Pennisetum:MSW) system, the 75:50 system, GM31, obtained increases of 1.93−17.68% and 0.29−23.29% for the specific biogas and methane yields, respectively. Whereas a shift in bacterial and methanogen communities occurred as the operating conditions changed, particularly with OLR variations. The genera Saccharofermentans, Prevotella, Clostridium, Syntrophomonas, and Proteiniphilum became the dominant bacteria for the conversion of carbohydrates and nitrogen compounds as the OLR increased. Meanwhile, a shift from acetoclastic to hydrogenotrophic or multifunctional methanogens was observed.
In this study, the links between performance and microbial communities were investigated with municipal solid waste (MSW) at two feedstock ratios and eight organic loading rates (OLRs). The co-digestion systems were stably operated at OLRs of 2.0−6.0 g VS/(L·d). The performance of the co-digestion system varied with the feedstock ratio. Compared with the 50:50 (hybrid Pennisetum:MSW) system, the 75:50 system, GM31, obtained increases of 1.93−17.68% and 0.29−23.29% for the specific biogas and methane yields, respectively. Whereas a shift in bacterial and methanogen communities occurred as the operating conditions changed, particularly with OLR variations. The genera Saccharofermentans, Prevotella, Clostridium, Syntrophomonas, and Proteiniphilum became the dominant bacteria for the conversion of carbohydrates and nitrogen compounds as the OLR increased. Meanwhile, a shift from acetoclastic to hydrogenotrophic or multifunctional methanogens was observed.
Record ID
Keywords
anaerobic digestion, biogas yield, microbial community, municipal solid waste, Pennisetum hybrid
Subject
Suggested Citation
Zhao Q, He S, Li L, Sun Y, Ren H. Links between Process Performance and Microbial Community of Pennisetum Hybrid Co-Digested with Municipal Solid Waste. (2023). LAPSE:2023.33087
Author Affiliations
Zhao Q: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China; Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
He S: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China
Li L: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; Guangdong Key Laborator
Sun Y: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; Guangdong Key Laborator
Ren H: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China [ORCID]
He S: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China
Li L: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; Guangdong Key Laborator
Sun Y: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; Guangdong Key Laborator
Ren H: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China [ORCID]
Journal Name
Energies
Volume
14
Issue
12
First Page
3651
Year
2021
Publication Date
2021-06-19
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en14123651, Publication Type: Journal Article
Record Map
Published Article
LAPSE:2023.33087
This Record
External Link
https://doi.org/10.3390/en14123651
Publisher Version
Download
Meta
Record Statistics
Record Views
346
Version History
[v1] (Original Submission)
Apr 20, 2023
Verified by curator on
Apr 20, 2023
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2023.33087
Record Owner
Auto Uploader for LAPSE
Links to Related Works