Synergistic coupling of anammox and mixotrophic sulfide-driven denitrification for extensive nitrogen removal

Establishment and stable operation of sulfide-driven denitrification-Anammox process treating wastewater with minimal nitrous oxide emissions.

Sulfide-driven partial denitrification serves as a remedial strategy for suboptimal partial nitrification-anammox performance.

The partial nitrification-anammox (PNA) process applied to low C/N municipal wastewater treatment is often constrained by unstable nitrite supply and nitrate accumulation. In this study, a coupled suboptimal partial nitrification, sulfide-driven partial denitrification, and anammox (sPN-SPDA) process was developed in a...

Chlorite-Mediated Regulation of Nitrite Accumulation and Nitrogen Removal in Integrated Partial Denitrification/Anammox Biofilter.

Achieving stable and efficient nitrite accumulation in integrated partial denitrification/anammox (PD/A) processes is typically constrained by substrate competition among microorganisms, posing a significant challenge for large-scale engineering applications. This study proposes a novel strategy for regulating nitrogen...

Anammox-driven advanced nitrogen removal from high-strength ammonia wastewater: Multi-pathway synergism and microbiome spatial remodeling.

A continuous-flow anoxic-aerobic integrated fixed-film activated sludge (A/O IFAS) system centered on anammox to treat mature landfill leachate with an extremely low BOD5/N ratio serves as a reliable technical case to advance the engineering application of anammox.

Performance and functional flora of simultaneous nitrogen removal, desulfurization and electricity generation in sulfide autotrophic denitrification-anammox-MFC coupled system.

In this study, a novel SAD-anammox-MFC coupled system was constructed for simultaneous nitrogen removal, desulfurization, and electricity generation. The optimal total nitrogen (TN) removal efficiency of 82.1% was achieved under the following conditions: a sludge inoculation ratio (SADB:AnAOB) of 1:2, external resistan...

Balancing sulfur accumulation and nitrous oxide emissions during sulfide autotrophic denitrification in moving-bed biofilm reactor-based bioscrubbers.

Sulfide autotrophic denitrification (SADN) is a promising strategy for integrating biogas desulfurization with nitrogen removal in anaerobic digestion-based treatment systems. However, its application in moving bed biofilm reactors (MBBRs) remains limited by biosulfur (S0) accumulation and nitrous oxide (N2O) emissions...