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All issues Volume 8 (2023) Renew. Energy Environ. Sustain., 8 (2023) 8 Full HTML
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Table 1

The proportion of archaea with more than 0.1% abundance detected by the 16S Metabarcoding analysis in the microbial community.

Family Genus MG2 (%) MG11 (%) MG12 (%) Substrate
Mathanobacteriaceae Unidentified 0 0.3 0 NA
Mathanobacteriaceae Methanobacterium 0 0.1 0.9 H2, CO2, formate
Mathanobacteriaceae Methanothermobacter 0 10.3 0.2 H2, CO2
Mathanomicrobiaceae Methanoculleus 0 0 0.1 H2, CO2, formate
Mathanosarcinaceae Methanosarcina 0.2 0.1 0 H2, CO2, acetate, methanol

Sample MG2: initial inoculum (thermophilic anaerobic sludge); MG11: carbon felt (cathode) in the BES reactor after 1-week of anaerobic digestion and 7 weeks of BES operation, and MG12 bulk solution in cathodic chamber after 1-week anaerobic digestion; NA = not applicable.

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