The Nitrogen Removal Characteristics of a Novel Salt-Tolerant Bacterium, Enterobacter quasihormaechei DGFC5, Isolated from Municipal Sludge.

ABSTRACT: A novel bacterial strain, Enterobacter quasihormaechei DGFC5, was isolated from a municipal sewage disposal system. It efficiently removed ammonium, nitrate, and nitrite under conditions of 5% salinity, without intermediate accumulation. Provided with a mixed nitrogen source, DGFC5 showed a higher utilization priority for NH₄⁺-N. Whole-genome sequencing and nitrogen balance experiments revealed that DGFC5 can simultaneously consume NH₄⁺-N in the liquid phase through assimilation and heterotrophic nitrification, and effectively remove nitrate via aerobic denitrification and dissimilatory reduction reactions. Single-factor experiments were conducted to determine the optimal nitrogen removal conditions, which were as follows: a carbon-to-nitr

SUBMITTER: Wang B 

PROVIDER: S-EPMC11728697 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature