Comparison of microbial community structures between mesophilic and thermophilic anaerobic digestion of vegetable waste
The anaerobic digestion performance correlates with the functional microbial community. Mesophilic and thermophilic digestions of vegetable waste were conducted, and dynamics of the microbial community were investigated. The mesophilic and thermophilic collapsed stages occurred at organic loading rates of 1.5 and 2.0 g VS/(L d) due to the accumulation of volatile fatty acids with final concentrations of 2276 and 6476 mg/L, respectively. A high concentration of volatile fatty acids caused the severe inhibition of methanogens, which finally led to the imbalance between acetogenesis and methanogenesis. The mesophilic digestion exhibited a higher microbial diversity and richness than the thermophilic digestion. Syntrophic acetate-oxidizing coupled with hydrogenotrophic methanogenesis was the dominant pathway in the thermophilic stable system, and acetoclastic methanogenesis in the mesophilic stable system. The dominant acidogens, syntrophus, and methanogens were unclassified_f__Anaerolineaceae (8.68%), Candidatus_Cloacamonas (19.70%), Methanosaeta (6.10%), and Methanosarcina (4.08%) in the mesophilic stable stage, and Anaerobaculum (12.59%), Syntrophaceticus (4.84%), Methanosarcina (30.58%), and Methanothermobacter (3.17%) in thermophilic stable stage. Spirochaetae and Thermotogae phyla were the characteristic microorganisms in the mesophilic and thermophilic collapsed stages, respectively. These findings provided valuable information for the deep understanding of the difference of the microbial community and methane-producing mechanism between mesophilic and thermophilic digestion of vegetable waste.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2021 |
|---|---|
| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:44 |
|---|---|
| Enthalten in: |
Bioprocess and biosystems engineering - 44(2021), 6 vom: 16. Juni, Seite 1201-1214 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Ao, Tianjie [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Functional microbial community |
|---|
| Anmerkungen: |
Date Completed 06.12.2021 Date Revised 14.12.2021 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1007/s00449-021-02519-5 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM321504755 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM321504755 | ||
| 003 | DE-627 | ||
| 005 | 20231225175939.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2021 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1007/s00449-021-02519-5 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1071.xml |
| 035 | |a (DE-627)NLM321504755 | ||
| 035 | |a (NLM)33591430 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Ao, Tianjie |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Comparison of microbial community structures between mesophilic and thermophilic anaerobic digestion of vegetable waste |
| 264 | 1 | |c 2021 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 06.12.2021 | ||
| 500 | |a Date Revised 14.12.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a The anaerobic digestion performance correlates with the functional microbial community. Mesophilic and thermophilic digestions of vegetable waste were conducted, and dynamics of the microbial community were investigated. The mesophilic and thermophilic collapsed stages occurred at organic loading rates of 1.5 and 2.0 g VS/(L d) due to the accumulation of volatile fatty acids with final concentrations of 2276 and 6476 mg/L, respectively. A high concentration of volatile fatty acids caused the severe inhibition of methanogens, which finally led to the imbalance between acetogenesis and methanogenesis. The mesophilic digestion exhibited a higher microbial diversity and richness than the thermophilic digestion. Syntrophic acetate-oxidizing coupled with hydrogenotrophic methanogenesis was the dominant pathway in the thermophilic stable system, and acetoclastic methanogenesis in the mesophilic stable system. The dominant acidogens, syntrophus, and methanogens were unclassified_f__Anaerolineaceae (8.68%), Candidatus_Cloacamonas (19.70%), Methanosaeta (6.10%), and Methanosarcina (4.08%) in the mesophilic stable stage, and Anaerobaculum (12.59%), Syntrophaceticus (4.84%), Methanosarcina (30.58%), and Methanothermobacter (3.17%) in thermophilic stable stage. Spirochaetae and Thermotogae phyla were the characteristic microorganisms in the mesophilic and thermophilic collapsed stages, respectively. These findings provided valuable information for the deep understanding of the difference of the microbial community and methane-producing mechanism between mesophilic and thermophilic digestion of vegetable waste | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Functional microbial community | |
| 650 | 4 | |a Mesophilic anaerobic digestion | |
| 650 | 4 | |a Syntrophic acetate-oxidizing | |
| 650 | 4 | |a Thermophilic anaerobic digestion | |
| 650 | 4 | |a Vegetable waste | |
| 700 | 1 | |a Xie, Zhijie |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Pan |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Xiaofeng |e verfasserin |4 aut | |
| 700 | 1 | |a Wan, Liping |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Dong |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Bioprocess and biosystems engineering |d 2002 |g 44(2021), 6 vom: 16. Juni, Seite 1201-1214 |w (DE-627)NLM134274482 |x 1615-7605 |7 nnns |
| 773 | 1 | 8 | |g volume:44 |g year:2021 |g number:6 |g day:16 |g month:06 |g pages:1201-1214 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1007/s00449-021-02519-5 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 44 |j 2021 |e 6 |b 16 |c 06 |h 1201-1214 | ||