Enhancing the Stability of Partial Nitritation Anammox in Mainstream Municipal Wastewater Treatment: Biological Foundations, Control Strategies, and Future Perspectives
Key intensification strategies were highlighted, including fine-tuned dissolved oxygen control, decoupling of hydraulic and solids retention times, reinforcement of biofilm and granular sludge structures, and fine-tuned dissolved oxygen control.
This review systematically summarizes the latest advances, key challenges, and engineering application strategies of partial denitrification/anammox (PD/A) technology, with a particular focus on plug-flow biosystems. The plug-flow process is widely used, yet its effluent often fails standards due to low C/N ratios. To...
Partial nitritation and anammox (PNA) in membrane-aerated biofilm reactors (MABRs) offers a sustainable pathway for mainstream wastewater treatment; however, its application is often limited by the persistence of nitrite-oxidizing bacteria (NOB). This study demonstrated the feasibility of achieving the acidic PNA proce...
Dongdong Xu, Yan Lu, Tao Liu et al.· Water Research· 0 citations
Wastewater from industries, municipalities, or the agricultural sector contains huge amounts of nitrogenous substances, causing serious risks to the immediate locality and public health. Anammox technology is recognized as a preferred option for treating nitrogenous wastewater due to its sustainability, cost-effectiven...
Adegoke Isiaka Adetunji, S. T. Gumbi· Applied Water Science· 0 citations
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.
Hao-Ran Liang, Jin-Jin Liu, Zhao-Zhi Wang et al.· Bioresource Technology· 0 citations
With increasing concerns over eutrophication control and carbon‐neutral wastewater treatment, simultaneous nitrogen and phosphorus removal under low‐temperature conditions remains a critical challenge. Conventional biological nutrient removal processes suffer from high energy demand, external carbon requirements, and...
Zhen-Le Lei, Yu-Jie Cao, Yu-Xue Liu et al.· Environmental Progress &...· 0 citations
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...
Xiaodi Li, Bo Wang, Wei Zeng et al.· Bioresource Technology· 0 citations
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