Robust nitrogen removal through simultaneous denitrification and anammox driven by alkaline sludge fermentation liquid at varying nitrification levels.
Operational instability of partial nitrification (PN) remains a major barrier to mainstream energy-efficient wastewater treatment. Here, a stable simultaneous denitrification-anammox system driven by alkaline sludge fermentation liquor (ASFL) under varying nitrification levels (PN, complete nitrification, and their coe...