Mapping anaerobic sludge bed community adaptations to manure supernatant in biogas reactors.

ABSTRACT: In upflow anaerobic sludge bed (UASB) reactors, biomass present as granules allows for long solids retention time. Here, granules from a process treating pulp and paper industrial wastewater were successfully applied as inoculum in UASB reactors treating pig manure supernatant, despite high particle content and high ammonium concentrations in the influent. We did a detailed characterization of archaeal and bacterial communities associated with the inoculum and with the aggregated and dispersed fractions of the influent and the reactors after one year of operation. The granular communities underwent major changes and adapted to the highly distinct conditions without disintegration of the granules. Although the granules persisted in the reactors, non-granular aggregates accumulated, and part

SUBMITTER: Nordgard ASR 

PROVIDER: S-EPMC6203818 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature