Pilot-scale partial nitrification and anaerobic ammonium oxidation system for nitrogen removal from municipal wastewater.

ABSTRACT: Partial nitrification has the advantages of saving energy and reducing the need for carbon sources in municipal wastewater treatment. However, for municipal wastewater with low ammonia, start-up and maintenance of partial nitrification is a worldwide challenge. Here we developed a pilot-scale double sludge system consisting of two sequencing batch reactors for partial nitrification (12 m²) and denitrification/anaerobic ammonium oxidation (denitrification/anammox, 8.4 m²) to treat municipal wastewater. Partial nitrification was maintained at no ammonium remaining with a nitrite accumulation rate of 87.7%. This study found that partial nitrification system effluent chemical oxygen demand increased from 24.8 mg L^-1 to 64.9 mg L^-1 accompanied by tran

SUBMITTER: Su Y 

PROVIDER: S-EPMC11868482 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature