Membrane aerated biofilm reactors for mainstream partial nitritation/anammox: Experiences using real municipal wastewater.

ABSTRACT: This study investigated the potential of Membrane-Aerated Biofilm Reactors (MABRs) for mainstream nitrogen removal via partial nitration/anaerobic ammonium oxidation (anammox). Four laboratory-scale MABRs were operated with real municipal wastewater characterized by low concentrations of nitrogen (varying between 31 and 120 mg-NH₄-N L^-1) and the presence of biodegradable organic carbon (soluble COD (sCOD) between 7 and 230 mg-O₂ L^-1). Two reactors were operated with different aeration strategies (intermittent vs. continuous), the other two with differences in biomass retention (recirculation or removal of detached biomass). Keeping a constant HRT caused instabilities due to difficulties with setting the optimal oxygen flux for the respective surf

SUBMITTER: Bunse P 

PROVIDER: S-EPMC7494511 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature