Synergistic Integration of Anammox and Endogenous Denitrification Processes for the Simultaneous Carbon, Nitrogen, and Phosphorus Removal

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(24), P. 10632 - 10643

Published: May 31, 2024

The feasibility of a synergistic endogenous partial denitrification-phosphorus removal coupled anammox (SEPD-PR/A) system was investigated in modified anaerobic baffled reactor (mABR) for synchronous carbon, nitrogen, and phosphorus removal. mABR comprising four identical compartments (i.e., C1–C4) inoculated with precultured denitrifying glycogen-accumulating organisms (DGAOs), polyphosphate-accumulating organisms, bacteria. After 136 days operation, the chemical oxygen demand (COD), total efficiencies reached 88.6 ± 1.0, 97.2 1.5, 89.1 4.2%, respectively. Network-based analysis revealed that biofilmed community demonstrated stable nutrient performance under oligotrophic conditions C4. metagenome-assembled genomes (MAGs) such as MAG106, MAG127, MAG52, MAG37 annotated phosphorus-accumulating (DPAOs) MAG146 DGAO were dominated C1 C2 contributed to 89.2% COD consumption. MAG54 MAG16 Candidatus_Brocadia (total relative abundance 16.5% C3 4.3% C4) responsible 74.4% nitrogen through anammox-mediated pathway. Functional gene based on metagenomic sequencing confirmed different capable performing distinct functions specific advantageous microbial groups, facilitating targeted Additionally, conditions, activity bacteria-related genes hzs higher compared hdh. Thus, an innovative method treatment low-strength municipal nitrate-containing wastewaters without aeration presented, mediated by process less land area excellent quality effluent.

Language: Английский

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Review of the mechanisms involved in dissimilatory nitrate reduction to ammonium and the efficacies of these mechanisms in the environment

Environmental Pollution, Journal Year: 2024, Volume and Issue: 345, P. 123480 - 123480

Published: Feb. 5, 2024

Language: Английский

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Rapid start-up sulfur-driven autotrophic denitrification granular process: Extracellular electron transfer pathways and microbial community evolution

Bioresource Technology, Journal Year: 2024, Volume and Issue: 395, P. 130331 - 130331

Published: Jan. 17, 2024

Language: Английский

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Investigating cake layer development and functional genes in formate- and acetate-driven heterotrophic denitrifying AnMBRs

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 485, P. 149623 - 149623

Published: Feb. 15, 2024

Language: Английский

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Mechanisms underlying the interactions and adaptability of nitrogen removal microorganisms in freshwater sediments

Advanced Biotechnology, Journal Year: 2024, Volume and Issue: 2(3)

Published: June 17, 2024

Microorganisms in eutrophic water play a vital role nitrogen (N) removal, which contributes significantly to the nutrient cycling and sustainability of ecosystems. However, mechanisms underlying interactions adaptation strategies N removal microorganisms ecosystems remain unclear. We thus analyzed field sediments collected from freshwater ecosystem, enriched microorganisms, examined their function adaptability through amplicon, metagenome metatranscriptome sequencing. found that activities could be affected potential competition inhibition among microbial metabolic pathways. High-diversity communities generally increased abundance expression functional genes. Further enrichment experiments showed led development simplified but more stable communities, characterized by similar evolutionary patterns tighter interactions, adaptability. Notably, sustained provision NH4+ NO2- during potentially strengthen interconnections denitrification, anaerobic ammonium oxidation (anammox) dissimilatory nitrate reduction (DNRA) processes. Moreover, identification shared traits anammox DNRA implies important cooperative associations microorganisms. Our findings highlight affect adaptive key taxa involved removal.

Language: Английский

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Cooperation and competition between denitrification and chromate reduction in a hydrogen-based membrane biofilm reactor

Water Research, Journal Year: 2024, Volume and Issue: 259, P. 121870 - 121870

Published: June 3, 2024

Language: Английский

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Dissimilatory Nitrate Reduction to Ammonia in the natural environment and wastewater treatment facilities: A comprehensive review

Environmental Technology & Innovation, Journal Year: 2025, Volume and Issue: unknown, P. 104011 - 104011

Published: Jan. 1, 2025

Language: Английский

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Robust rehabilitation of anammox system by granular activated carbon under long-term starvation stress: Microbiota restoration and metabolic reinforcement

Bioresource Technology, Journal Year: 2023, Volume and Issue: 393, P. 130113 - 130113

Published: Nov. 25, 2023

Language: Английский

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Keystone bacteria in a thiosulfate-driven autotrophic denitrification microbial community

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 470, P. 144321 - 144321

Published: June 25, 2023

Language: Английский

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

Bioresource Technology, Journal Year: 2023, Volume and Issue: 391, P. 129950 - 129950

Published: Nov. 4, 2023

Language: Английский

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