Effect of COD/ NO3−-N ratio on nitrite accumulation and microbial behavior in glucose-driven partial denitrification system

• Published in: Heliyon Vol. 9; no. 4; p. e14920
• Main Authors: Zeng, Zhijie, Wang, Yiying, Zhu, Wenxuan, Xie, Tian, Li, Lingling
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.04.2023; Elsevier
• Subjects: carbon; COD/NO3−-N ratio; community structure; denitrification; Electron acceptor; genus; glucose; microbial communities; Microbial community; nitrites; NO2−-N accumulation; Thauera; NO2−-N accumulation; COD/NO3−-N ratio; Microbial community; Electron acceptor

COD/NO3−-N ratio was considered to be one of the key factors achieving effective nitrite accumulation during partial denitrification. In two parallel reactors incubated with glucose as carbon source at COD/NO3−-N of 3 and 5, respectively, the microbial community structure shift and the nitrite accum...