Comammox Nitrospira cooperate with anammox bacteria in a partial nitritation–anammox membrane bioreactor treating low-strength ammonium wastewater at high loadings

Water Research, Год журнала: 2024, Номер 257, С. 121698 - 121698

Опубликована: Апрель 30, 2024

Язык: Английский

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How to Provide Nitrite Robustly for Anaerobic Ammonium Oxidation in Mainstream Nitrogen Removal

Environmental Science & Technology, Год журнала: 2023, Номер 57(51), С. 21503 - 21526

Опубликована: Дек. 14, 2023

Innovation in decarbonizing wastewater treatment is urgent response to global climate change. The practical implementation of anaerobic ammonium oxidation (anammox) treating domestic the key reconciling carbon-neutral management with sustainable development. Nitrite availability prerequisite anammox reaction, but how achieve robust nitrite supply and accumulation for mainstream systems remains elusive. This work presents a state-of-the-art review on recent advances anammox, paying special attention available pathways (forward-going (from nitrite) backward-going nitrate nitrite)), controlling strategies, physiological ecological characteristics functional microorganisms involved supply. First, we comprehensively assessed nitrite-oxidizing bacteria control methods, outlining that these technologies are transitioning possessing multiple selective pressures (such as intermittent aeration membrane-aerated biological reactor), integrating side stream free ammonia/free nitrous acid suppression recirculated sludge treatment), maintaining high activity ammonia-oxidizing competing oxygen bacteria. We then highlight emerging strategies supply, including production driven by novel microbes (ammonia-oxidizing archaea complete ammonia bacteria) reduction (partial denitrification nitrate-dependent methane oxidation). resources requirement different analyzed, hybrid pathway combining partial nitrification encouraged. Moreover, data-driven modeling process well proactive microbiome proposed hope achieving application. Finally, existing challenges further perspectives highlighted, i.e., investigation nitrite-supplying bacteria, scaling-up from laboratory under real conditions, stable performance fundamental insights this aim inspire advance our understanding about provide robustly shed light important obstacles warranting settlement.

Язык: Английский

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Complete ammonia oxidation (comammox) at pH 3-4 supports stable production of ammonium nitrate from urine

Water Research, Год журнала: 2024, Номер 257, С. 121686 - 121686

Опубликована: Апрель 28, 2024

This study developed a new process that stably produced ammonium nitrate (NH

Язык: Английский

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Sustainable wastewater management through nitrogen-cycling microorganisms

Nature Water, Год журнала: 2024, Номер 2(10), С. 936 - 952

Опубликована: Окт. 14, 2024

Язык: Английский

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A critical review of comammox and synergistic nitrogen removal coupling anammox: Mechanisms and regulatory strategies

The Science of The Total Environment, Год журнала: 2024, Номер 948, С. 174855 - 174855

Опубликована: Июль 20, 2024

Язык: Английский

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Dual intermittent aerations enhance nitrogen removal via anammox in anoxic/oxic biofilm process for carbon limited wastewater treatment

Bioresource Technology, Год журнала: 2025, Номер 419, С. 132096 - 132096

Опубликована: Янв. 18, 2025

Язык: Английский

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Facilitating multiple nitrite for anammox process directly treating municipal wastewater: Optimized organics utilization and microbial composition

Journal of Environmental Management, Год журнала: 2025, Номер 376, С. 124460 - 124460

Опубликована: Фев. 18, 2025

Язык: Английский

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Siderophore-Mediated Cooperation in Anammox Consortia

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

Опубликована: Фев. 17, 2025

It has been widely accepted that iron plays an important role in stimulating the activity of anammox bacteria, which contain many clusters for electron transport cells. However, whether bacteria could directly use and how to uptake Fe(III) have long-time ignored. Here, we found micrometer-scale magnetite with size 10–20 μm significantly promoted bacterial by core uptake. Anammox cannot utilize as they are unable secrete siderophore extracellular transfer intracellular. In anaerobic consortia at presence magnetite, synthesis belonging Alphaproteobacteria, Candidate phylum, Chloroflexi secreted abundant siderophores, combined ionized from form siderophore-Fe(III) complexes. These complexes were then used via a specific outer membrane receptor transported transporter protein periplasm, further releasing Fe(III). Cytochrome c was formed complex reduction, assimilation Fe–S heme B increase capability. This study reveals siderophore-mediated cooperation implies driving nitrogen conversion artificial or natural system.

Язык: Английский

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Mainstream application of the partial denitrification-anammox process for carbon-neutral wastewater treatment: A review

Journal of Water Process Engineering, Год журнала: 2025, Номер 72, С. 107558 - 107558

Опубликована: Март 30, 2025

Язык: Английский

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Nitrous oxide emissions in novel wastewater treatment processes: A comprehensive review

Bioresource Technology, Год журнала: 2023, Номер 391, С. 129950 - 129950

Опубликована: Ноя. 4, 2023

Язык: Английский

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