Ammonia-oxidizing archaea and complete ammonia-oxidizing Nitrospira in water treatment systems

Water Research X, Год журнала: 2022, Номер 15, С. 100131 - 100131

Опубликована: Март 14, 2022

Nitrification, the oxidation of ammonia to nitrate via nitrite, is important for many engineered water treatment systems. The sequential steps this respiratory process are carried out by distinct microbial guilds, including ammonia-oxidizing bacteria (AOB) and archaea (AOA), nitrite-oxidizing (NOB), newly discovered members genus Nitrospira that conduct complete (comammox). Even though all these nitrifiers have been identified within systems, their relative contributions nitrogen cycling poorly understood. Although AOA contribute nitrification in wastewater plants, they generally outnumbered AOB. In contrast, comammox typically dominate relatively low environments such as drinking treatment, tertiary aquaculture/aquarium filtration. Studies focus on abundance oxidizers may misconstrue actual role nitrifying guilds play a system. Understanding which active useful further optimization systems rely removal. This review highlights known distributions suggests future research directions will help assess identify factors influence activity.

Язык: Английский

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Enrichment of comammox bacteria in anammox-dominated low-strength wastewater treatment system within microaerobic conditions: Cooperative effect driving enhanced nitrogen removal

Chemical Engineering Journal, Год журнала: 2022, Номер 453, С. 139851 - 139851

Опубликована: Окт. 19, 2022

Язык: Английский

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Ubiquitous occurrence and functional dominance of comammox Nitrospira in full-scale wastewater treatment plants

Water Research, Год журнала: 2023, Номер 236, С. 119931 - 119931

Опубликована: Март 29, 2023

Язык: Английский

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Co-Occurrence and Cooperation between Comammox and Anammox Bacteria in a Full-Scale Attached Growth Municipal Wastewater Treatment Process

Environmental Science & Technology, Год журнала: 2023, Номер 57(12), С. 5013 - 5023

Опубликована: Март 13, 2023

Cooperation between comammox and anammox bacteria for nitrogen removal has been recently reported in laboratory-scale systems, including synthetic community constructs; however, there are no reports of full-scale municipal wastewater treatment systems with such cooperation. Here, we report intrinsic extant kinetics as well genome-resolved characterization a integrated fixed film activated sludge (IFAS) system where co-occur appear to drive loss. Intrinsic batch kinetic assays indicated that majority the aerobic ammonia oxidation was driven by (1.75 ± 0.08 mg-N/g TS-h) attached growth phase, minimal contribution ammonia-oxidizing bacteria. Interestingly, portion total inorganic (∼8%) consistently lost during these assays. Aerobic nitrite eliminated possibility denitrification cause loss, while anaerobic resulted rates consistent stoichiometry. Full-scale experiments at different dissolved oxygen (DO = 2 - 6 mg/L) setpoints persistent loss partly sensitive DO concentrations. Genome-resolved metagenomics confirmed high abundance (relative 6.53 0.34%) two Brocadia-like populations, within Ca. Nitrospira nitrosa cluster were lower (0.37 0.03%) Nitrosomonas-like oxidizers even (0.12 0.02%). Collectively, our study first time co-occurrence cooperation system.

Язык: Английский

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Key enzymes, functional genes, and metabolic pathways of the nitrogen removal-related microorganisms

Critical Reviews in Environmental Science and Technology, Год журнала: 2024, Номер 54(23), С. 1672 - 1691

Опубликована: Май 16, 2024

Biological nitrogen removal is a classic technique for removing from wastewater that has been studied extensively and gives high rate, energy efficiency, relatively environmentally benign. Using biological processes to treat the diverse components of requires thorough understanding microorganisms pathways involved. However, information regarding participating in remains limited. This review presents current knowledge researches into these microorganisms, including ammonia oxidizing bacteria, archaea, complete oxidation nitrite-oxidizing anaerobic ammonium denitrifying heterotrophic nitrification-aerobic denitrification bacteria. The metabolic enzymatic reactions involved cycle abovementioned are demonstrated. key enzymes, functional genes, removal-related were discussed. Additionally, advantages different oxidation, denitrifying, HN-AD described. Finally, limitations strategies unraveling presented. aim improve our principle advanced allow possible improvements treatment be identified.

Язык: Английский

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Contrasting response of comammox Nitrospira, ammonia oxidising bacteria, and archaea to soil pH and nitrogen inputs

The Science of The Total Environment, Год журнала: 2024, Номер 924, С. 171627 - 171627

Опубликована: Март 11, 2024

This study aimed to investigate the effect of soil pH change, and nitrogen amendment on ammonia oxidiser abundance comammox Nitrospira community composition. The experimental design used mesocosms placed in a temperature-controlled incubator for 90 days. A Templeton silt loam was as its physiochemical properties are typical region's dairy farms. results showed that clade B preferred natural (pH 6.1–6.2) with no applied nitrogen. Furthermore, synthetic urine (N700) decreased B. may have been because large amounts available N700 treatments inhibited growth Nitrospira. These suggest while present New Zealand farm soils, but their role nitrification very high environment under patch grazed pastures be limited. Further research is needed confirm this. In contrast comammox, AOB (dominated by Nitrosospira) responded positively application urine. response greatest (7.1), followed then low (4.9) soils. due difference availability. At pH, ammonia/ammonium equilibrium favours production. Calculated availability accurately predicted amoA gene abundance. Interestingly, AOA (which predominantly made up Thaumarchaeota group I.1b E) seemed prefer soils over pH. specific lineage present. did not respond

Язык: Английский

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The growth of submerged plant Potamogeton crispus L. affected complete ammonia oxidizers in the rhizosphere

Applied Soil Ecology, Год журнала: 2025, Номер 208, С. 105991 - 105991

Опубликована: Фев. 27, 2025

Язык: Английский

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Abundance and functional importance of complete ammonia-oxidizing bacteria (comammox) versus canonical nitrifiers in temperate forest soils

Soil Biology and Biochemistry, Год журнала: 2020, Номер 145, С. 107801 - 107801

Опубликована: Апрель 4, 2020

Язык: Английский

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Temperature and salinity drive comammox community composition in mangrove ecosystems across southeastern China

The Science of The Total Environment, Год журнала: 2020, Номер 742, С. 140456 - 140456

Опубликована: Июнь 25, 2020

Язык: Английский

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Iron-carbon galvanic cells strengthened anaerobic/anoxic/oxic process (Fe/C-A2O) for high-nitrogen/phosphorus and low-carbon sewage treatment

The Science of The Total Environment, Год журнала: 2020, Номер 722, С. 137657 - 137657

Опубликована: Март 2, 2020

Язык: Английский

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