Exploration of the relationship between biogas production and microbial community under high salinity conditions.

ABSTRACT: High salinity frequently causes inhibition and even failure in anaerobic digestion. To explore the impact of increasing NaCl concentrations on biogas production, and reveal the microbial community variations in response to high salinity stress, the Illumina high-throughput sequencing technology was employed. The results showed that a NaCl concentration of 20 g/L (H group) exhibited a similar level of VFAs and specific CO₂ production rate with that in the blank group, thus indicating that the bacterial activity in acidogenesis might not be inhibited. However, the methanogenic activity in the H group was significantly affected compared with that in the blank group, causing a 42.2% decrease in CH₄ production, a 37.12% reduction in the specific CH₄ generation r

SUBMITTER: Wang S 

PROVIDER: S-EPMC5430677 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature