Performance and microbial characteristics of biomass in a full-scale aerobic granular sludge wastewater treatment plant.

ABSTRACT: By modification of the operational conditions of batch reactors, a municipal wastewater treatment plant was upgraded from activated sludge to aerobic granular sludge (AGS) technology. After upgrading, the volume of the biological reactors was reduced by 30%, but the quality of the effluent substantially improved. The concentration of biomass in the reactors increased twofold; the average biomass yield was 0.6 g MLVSS/g COD, and excess granular sludge was efficiently stabilized in aerobic conditions. Canonical correspondence analysis based on the results of next-generation sequencing showed that the time of adaptation significantly influenced the microbial composition of the granules. In mature granules, the abundance of ammonium-oxidizing bacteria was very low, while the abundance of the n

SUBMITTER: Swiatczak P 

PROVIDER: S-EPMC5766719 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature