Rapid enrichment of anaerobic ammonia oxidation bacteria by combining low nitrogen strength with microbial viability.

• Tác giả: Yue Dong, Bing Li, Chengtun Qu, Yonghui Song, Sike Wang, Heng Yu, Junkai Zhao, Jiane Zuo
• Ngôn ngữ: eng
• Ký hiệu phân loại: 530.1433 Theories and mathematical physics
• Thông tin xuất bản: England : Bioresource technology , 2025
• Bộ sưu tập: NCBI
• ID: 718801

Tóm tắt

The rapid enrichment of anaerobic ammonia oxidation (anammox) bacteria (AnAOB) is challenging owing to their slow growth rate. Substrate supply strategies influence the AnAOB yield and anammox performance. In this study, a feeding strategy for low nitrogen strength with constant substrate concentrations and a hydraulic retention time decreasing over a gradient was investigated in an up-flow sludge blanket reactor. With increasing nitrogen load, the nitrogen removal rate increased from 0.2 to 6.3 kg-N m