Effects of the Wastewater Flow Rate on Interactions between the Genus Nitrosomonas and Diverse Populations in an Activated Sludge Microbiome

Autor: Takashi, Narihiro, Masaru Konishi, Nobu, Tomoyuki, Hori, Tomo, Aoyagi, Yuya, Sato, Tomohiro, Inaba, Hidenobu, Aizawa, Hideyuki, Tamaki, Hiroshi, Habe
Rok vydání: 2018
Předmět:
Zdroj: Microbes and Environments
ISSN: 1347-4405
Popis: The present study characterized the interactions of microbial populations in activated sludge systems during the operational period after an increase in the wastewater flow rate and consequential ammonia accumulation using a 16S rRNA gene sequencing-based network analysis. Two hundred microbial populations accounting for 81.8% of the total microbiome were identified. Based on a co-occurrence analysis, Nitrosomonas-type ammonia oxidizers had one of the largest number of interactions with diverse bacteria, including a bulking-associated Thiothrix organism. These results suggest that an increased flow rate has an impact on constituents by changing ammonia concentrations and also that Nitrosomonas- and Thiothrix-centric responses are critical for ammonia removal and microbial community recovery.
Databáze: OpenAIRE