Effects of biomass feedstock and hydrothermal temperature on the molecular composition and bioavailability of invasive plant-based hydrochar-derived dissolved organic matter.

Response of microbial nitrogen removal to sinuosity in river bends: mechanisms and development of physics-informed neural networks model.

Insights into impact of tire additives on activated sludge systems: Treatment performance, extracellular polymeric substances, and microbial community.

Ozonation before and after nitrogen removal: Consequences for ozone demand in light of the new urban wastewater treatment directive.

Synergy of potential and reduced graphene oxide enhances anaerobic nitrogen removal at 10°C: performance and mechanism.

Impacts of typical nitrogenous disinfection byproducts on advanced nitrogen removal in constructed wetlands: Insights from microbial activity and community response.

Unravelling microbial community succession and kinetics of marine anammox bacteria: Hydrazine-enhanced nitrogen removal from saline wastewater.

Tuning the influent sulfur-to-nitrogen ratio to mitigate nitrous oxide emissions in a sulfite-driven autotrophic denitrification system.

Low‑intensity aeration enhances algal-bacterial synergy to improve nitrogen removal from wastewater with low carbon-to-nitrogen ratio.

Convergent enrichment of core functional guilds involved in Fe-N metabolism in anammox and activated sludge: Insights into genome-resolved metagenomics.

Artificial regulation of aerobic and anaerobic layers interface enhanced efficient nitrogen removal by weaving insulating grid and conductive carbon fiber in membrane aerated biofilm reactor.

The performance and mechanism of sodium carboxymethyl cellulose in promoting the anaerobic ammonium oxidation coupled with Fe (III) reduction.

Nitrogen loading fluctuations impact microbial community assembly and functional redundancy in anammox reactors.

Immobile iron-rich particles enhance simultaneous nitrogen removal and phosphorus retention in treatment wetlands.

Simultaneous nitrification and denitrification microbial fuel cells (SND-MFC) for nitrogen removal and bioelectricity recovery: a review of performances, mechanisms, microorganisms, and applications.

In-Situ sulfur implantation efficiently promoting nitrogen removal in low-carbon anoxic-oxic systems.

Anodic potential and conductive carrier synergistically drive nitrite-free extracellular electron transfer-dependent anaerobic ammonium oxidation (Anammox) in mixed microbial communities.

The siphon downflow hanging sponge (siphon DHS) was developed by integrating a siphon tube to create anoxic and anaerobic zones for enhanced denitrification. However, limited aerobic volume resulted in low nitrification rates. In this study, the siphon DHS reactor volume was modified (50:25:25=aerobic: anoxic: anaerobic zones), and an influent bypass system (20% to the anoxic zone) was integrated to enhance simultaneous nitrification-denitrification. The integrated design achieved 76% nitrification and 20% total nitrogen (TN) removal, representing a threefold improvement over conventional DHS while maintaining 86% soluble chemical oxygen demand removal. The bypass system enhanced denitrification by providing sufficient organic matter to the anaerobic zone, while modified volume ratios enhanced nitrification. Microbial analysis revealed increased denitrifier abundance (Comamonadaceae: 14%) and reduced nitrite accumulation. The integrated design achieved 44% cost reduction for nitrogen removal while maintaining high treatment efficiency, providing a sustainable decentralized wastewater treatment solution.

Fe2+ primarily regulates nitrate nitrogen removal from groundwater in sulfur-driven autotrophic denitrification systems by regulating nitrite reduction.

Temperature-dependent effects of lanthanum-modified bentonite on sediment nitrogen removal processes and the underlying microbial mechanisms.