Characterisation of microbial communities for improved management of anaerobic digestion of food waste
| Autor: | Nadieh de Jonge, Åsa Davidsson, Jeppe Lund Nielsen, Jes la Cour Jansen |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
020209 energy
02 engineering and technology 010501 environmental sciences 01 natural sciences Bioreactors Bioremediation RNA Ribosomal 16S Anaerobic digestion Microbial community 0202 electrical engineering electronic engineering information engineering Anaerobiosis Waste Management and Disposal 0105 earth and related environmental sciences Microbiota Food waste Biogas production Pulp and paper industry Manure Refuse Disposal Substrate type Microbial population biology Wastewater Food Full scale Environmental science Methane Anaerobic exercise |
| Zdroj: | de Jonge, N, Davidsson, Å, la Cour Jansen, J & Nielsen, J L 2020, ' Characterisation of microbial communities for improved management of anaerobic digestion of food waste ', Waste Management, vol. 117, pp. 124-135 . https://doi.org/10.1016/j.wasman.2020.07.047 |
| ISSN: | 0956-053X |
| Popis: | Anaerobic digestion of food waste is an attractive and increasingly popular technology within waste management and energy recovery. A better understanding of the microbiology associated with anaerobic digestion of food waste will provide new insight into the operational conditions required for optimizing this process, as well as its potential for utilisation in co-digestion systems. Eighteen full-scale reactors processing varying proportions of food waste under diverse operational configurations were subjected to microbial community analysis by amplicon sequencing of the 16S rRNA and mcrA genes to capture the bacterial and methanogenic populations. Statistical correlations between microbial populations, plant design and operating conditions revealed that the microbial communities were shaped by operational parameters such as the primary substrate type and operational temperature, while the methanogenic communities showed a more reactor specific distribution. The distribution of microbes based on the waste processed in the surveyed digesters was explored, as well as the presence of specialist populations such as syntrophs and methanogens. Food waste digester communities were not associated with a strong microbial fingerprint compared to other waste types (wastewater and manure) but contained greater abundance and unique syntrophic acetate oxidising populations, suggesting that co-digestion with food waste may improve the functional diversity of anaerobic digesters. |
| Databáze: | OpenAIRE |
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