Microbiome of Seven Full-Scale Anaerobic Digestion Plants in South Korea: Effect of Feedstock and Operational Parameters

In this study, the microbiomes linked with operational parameters in seven mesophilic full-scale AD plants mainly treating food waste (four plants) and sewage sludge (three were analyzed. The results obtained indicated lower diversity evenness of microbial population digestion (SD) compared to (FD) plants. Candidatus Accumulibacter dominated (up 42.1%) SD due immigration from fed secondary 89%). Its potential activity was correlated H2 production, which related dominance hydrogenotrophic methanogens (Methanococcus). FD plants, a balance between methylotrophic pathways found, while Flavobacterium Levilinea played an important role during acidogenesis. also expressed sensitivity ammonia substantial differences hydraulic retention time (HRT), organic loading rate (OLR), total ammonium nitrogen (TAN) among studied did not influence archaeal methane production pathway. addition, bacterial genera responsible for acetate through syntrophy homoacetogenesis (Smithella, Treponema) present all studied.