Bacterial community analysis in upflow multilayer anaerobic reactor treating high-solids organic wastes.

ABSTRACT: A novel anaerobic digestion configuration, the upflow multi-layer anaerobic reactor (UMAR), was developed to treat high-solids organic wastes. The UMAR was hypothesized to form multi-layer along depth due to the upflow plug flow; use of a recirculation system and a rotating distributor and baffles aimed to assist treating high-solids influent. The chemical oxygen demand (COD) removal efficiency and methane (CH₄ ) production rate were 89% and 2.10 L CH₄ /L/d, respectively, at the peak influent COD concentration (110.4 g/L) and organic loading rate (7.5 g COD/L/d). The 454 pyrosequencing results clearly indicated heterogeneous distribution of bacterial communities at different vertical locations (upper, middle, and bottom) of the UMAR. Firmicutes was the dominant (>70%)

SUBMITTER: Cho SK 

PROVIDER: S-EPMC6585729 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature