[Inhibitory Kinetics of Free Ammonia (FA) on Ammonia-oxidizing Bacteria (AOB)]

Autor: Hong-Wei, Sun, Xue, Yu, Yu-Xue, Gao, Wei-Wei, Li, Guo-Ping, Qi, Juan, Xu
Rok vydání: 2018
Předmět:
Zdroj: Huan jing ke xue= Huanjing kexue. 39(9)
ISSN: 0250-3301
Popis: In this study, a sequencing batch reactor (SBR) was operated to investigate the inhibitory kinetics of free ammonia (FA) on ammonia-oxidizing bacteria (AOB). At the beginning of the experiment, FA concentrations in influent were altered to achieve stable short-cut nitrification and enrich AOB. Nitritation sludge was then employed to study variations in the specific nitrite production rate (SNiPR) during the ammonia oxidation process of batch tests. Furthermore, a kinetic model of FA inhibition on AOB activity was fitted for statistical analysis. Results showed that SNiPR increased rapidly with increase in FA concentration (0.7 mg·L
Databáze: OpenAIRE