Monthly dynamics of microbial communities and variation of nitrogen-cycling genes in an industrial-scale expanded granular sludge bed reactor.

ABSTRACT:

Introduction

The expanded granular sludge bed (EGSB) is a major form of anaerobic digestion system during wastewater treatment. Yet, the dynamics of microbial and viral communities and members functioning in nitrogen cycling along with monthly changing physicochemical properties have not been well elucidated.

Methods

Here, by collecting the anaerobic activated sludge samples from a continuously operating industrial-scale EGSB reactor, we conducted 16S rRNA gene amplicon sequencing and metagenome sequencing to reveal the microbial community structure and variation with the ever-changing physicochemical properties along within a year.

Results

We observed a clear monthly variation of microbial community structures, while COD, the ratio of volatile suspended solids (VSS)

SUBMITTER: Zhang K 

PROVIDER: S-EPMC9978346 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature