Optimization of Sludge Retention Time for Rapid Start-Up and Stable Operation of High-Rate Partial Nitritation in a Continuous Flow Reactor Treating Municipal Wastewater

Опубликована: Янв. 1, 2025

Язык: Английский

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Unveiling interactions between anammox and denitrification from long-term steady-state scale and transient kinetic scale in a granular sludge system

Bioresource Technology, Год журнала: 2025, Номер unknown, С. 132564 - 132564

Опубликована: Апрель 1, 2025

Язык: Английский

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In Situ Sustained Release of High-Value Microbial Products from Waste Activated Sludge for Enhanced Nitrogen Removal in Anammox Coupled with Heterotrophic Denitrification Processes

ACS ES&T Engineering, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Язык: Английский

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A Novel Perspective on the Instability of Mainstream Partial Nitrification: The Niche Differentiation of Nitrifying Guilds

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 28, 2025

Short-cut biological nitrogen removal (sBNR) favors the paradigm shift toward energy-positive and carbon-neutral wastewater treatment processes. Partial nitrification (PN) is a key approach to provide nitrite for anammox or denitritation during sBNR, its stability precondition achieving robust performance. However, maintaining stable mainstream PN process has been long-standing challenge. This review analyzes from microbial ecology perspective, focusing on niche differentiation among nitrifiers. First, we propose that systems are ecologically unstable, failure of due reactivation nitrite-oxidizing bacteria (NOB) can be regarded as behavior restore system stabilization. Thus, primarily relies enhancing between ammonia-oxidizing (AOB) NOB. We then summarize realized niches indigenous nitrifiers within discuss their ecophysiological characteristics (e.g., cell structure substrate affinity) define specific ecological niches. By comparing breadths AOB NOB various axes, further identify different responses (resistance) (resilience) exogenous perturbations. Finally, outlook through an lens. provides insights into instability process, which intended guide derivation optimized strategies single-factor integrated solutions.

Язык: Английский

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Deciphering Nitrogen and Sulfur Metabolic Pathways in Thiosulfate-Driven Denitrification Coupled with Anammox for Enhanced Nitrogen Removal

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116896 - 116896

Опубликована: Май 1, 2025

Язык: Английский

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