Journal
BIORESOURCE TECHNOLOGY
Volume 216, Issue -, Pages 446-452Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.05.098
Keywords
Anaerobic digestion; Illumina; Microbial community
Funding
- Xylem, Inc.
- U.S. Environmental Protection Agency (EPA) [FP-91766901-0]
Ask authors/readers for more resources
Sustainable municipal wastewater recovery scenarios highlight benefits of anaerobic membrane bioreactors ( AnMBRs). However, influences of continuous seeding by influent wastewater and temperature on attached-growth AnMBRs are not well understood. In this study, four bench-scale AnMBR operated at 10 and 25 degrees C were fed synthetic ( SPE) and then real ( PE) primary effluent municipal wastewater. Illumina sequencing revealed different bacterial communities in each AnMBR in response to temperature and bioreactor configuration, whereas differences were not observed in archaeal communities. Activity assays revealed hydrogenotrophic methanogenesis was the dominant methanogenic pathway at 10 degrees C. The significant relative abundance of Methanosaeta at 10 degrees C concomitant with low acetoclastic methanogenic activity may indicate possible Methanosaeta-Geobacter direct interspecies electron transfer. When AnMBR feed was changed to PE, continual seeding with wastewater microbiota caused AnMBR microbial communities to shift, becoming more similar to PE microbiota. Therefore, influent wastewater microbiota, temperature and reactor configuration influenced the AnMBR microbial community. (C) 2016 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available