Comparative study of industrial-scale high-solid biogas production from food waste: Process operation and microbiology

Westerholm, Maria; Liu, Tong; Schnürer, Anna

doi:10.1016/j.biortech.2020.122981

Cited by 63 publications

(13 citation statements)

References 45 publications

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“…These two primer sets have previously been shown to adapt well to Illumina sequencing. Moreover, the archaeal community generated from these two primer sets is generally consistent, but with higher resolution in the results for primer set 516F and 915R [44,61,108,109]. However, the results of these two primer sets were somewhat contradictory for sample 1A_204.…”

Section: Possible Bias Introduced By Using Two Different Primers For mentioning

confidence: 64%

Diversity and Abundance of Microbial Communities in UASB Reactors during Methane Production from Hydrolyzed Wheat Straw and Lucerne

et al. 2020

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The use of straw for biofuel production is encouraged by the European Union. A previous study showed the feasibility of producing biomethane in upflow anaerobic sludge blanket (UASB) reactors using hydrolyzed, steam-pretreated wheat straw, before and after dark fermentation with Caldicellulosiruptor saccharolyticus, and lucerne. This study provides information on overall microbial community development in those UASB processes and changes related to acidification. The bacterial and archaeal community in granular samples was analyzed using high-throughput amplicon sequencing. Anaerobic digestion model no. 1 (ADM1) was used to predict the abundance of microbial functional groups. The sequencing results showed decreased richness and diversity in the microbial community, and decreased relative abundance of bacteria in relation to archaea, after process acidification. Canonical correspondence analysis showed significant negative correlations between the concentration of organic acids and three phyla, and positive correlations with seven phyla. Organic loading rate and total COD fed also showed significant correlations with microbial community structure, which changed over time. ADM1 predicted a decrease in acetate degraders after a decrease to pH ≤ 6.5. Acidification had a sustained effect on the microbial community and process performance.

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Section: Possible Bias Introduced By Using Two Different Primers For mentioning

confidence: 64%

Diversity and Abundance of Microbial Communities in UASB Reactors during Methane Production from Hydrolyzed Wheat Straw and Lucerne

et al. 2020

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“…Eventually, the importance of the Clostridia group MBA03 ( Limnochordia ) in experiment 1 at the highest TAN has to be highlighted. This group, abundant in AD (e.g., reference 82 ), is tolerant to medium to high NH 4 + levels ( 83 , 84 ). Members of group MBA03 are suggested to be electroactive ( 85 ) and potentially involved in SAO based on SIP analysis ( 86 ).…”

Section: Discussionmentioning

confidence: 99%

Similar Methanogenic Shift but Divergent Syntrophic Partners in Anaerobic Digesters Exposed to Direct versus Successive Ammonium Additions

et al. 2021

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“…The Firmicutes were found as the most dominant phyla involved in polysaccharides degrading functions [53]. The Cloacimonetes, represented by OTU 2, has been suggested to be involved in the degradation of cellulose, in syntrophic propionate oxidation, and in the degradation of amino acid to acetate, carbon dioxide, and hydrogen, and thus depends on cooperation with hydrogen-consuming and/or acetate-utilizing partners such as Archaea [62,63].…”

Section: Discussionmentioning

confidence: 99%

Microbial Communities and Sulfate-Reducing Microorganisms Abundance and Diversity in Municipal Anaerobic Sewage Sludge Digesters from a Wastewater Treatment Plant (Marrakech, Morocco)

Houari

Ranchou-Peyruse

et al. 2020

Processes

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Both molecular analyses and culture-dependent isolation were combined to investigate the diversity of sulfate-reducing prokaryotes and explore their role in sulfides production in full-scale anaerobic digesters (Marrakech, Morocco). At global scale, using 16S rRNA gene sequencing, Proteobacteria, Bacteroidetes, Firmicutes, Actinobacteria, Synergistetes, and Euryarchaeota were the most dominant phyla. The abundance of Archaea (3.1–5.7%) was linked with temperature. The mcrA gene ranged from 2.18 × 105 to 1.47 × 107 gene copies.g−1 of sludge. The sulfate-reducing prokaryotes, representing 5% of total sequences, involved in sulfides production were Peptococcaceae, Syntrophaceae, Desulfobulbaceae, Desulfovibrionaceae, Syntrophobacteraceae, Desulfurellaceae, and Desulfobacteraceae. Furthermore, dsrB gene ranged from 2.18 × 105 to 1.92 × 107 gene copies.g−1 of sludge. The results revealed that exploration of diversity and function of sulfate-reducing bacteria may play a key role in decreasing sulfide production, an undesirable by-product, during anaerobic digestion.

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Comparative study of industrial-scale high-solid biogas production from food waste: Process operation and microbiology

Cited by 63 publications

References 45 publications

Diversity and Abundance of Microbial Communities in UASB Reactors during Methane Production from Hydrolyzed Wheat Straw and Lucerne

Diversity and Abundance of Microbial Communities in UASB Reactors during Methane Production from Hydrolyzed Wheat Straw and Lucerne

Similar Methanogenic Shift but Divergent Syntrophic Partners in Anaerobic Digesters Exposed to Direct versus Successive Ammonium Additions

Microbial Communities and Sulfate-Reducing Microorganisms Abundance and Diversity in Municipal Anaerobic Sewage Sludge Digesters from a Wastewater Treatment Plant (Marrakech, Morocco)

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