Effect of dissolved oxygen concentration on performance and mechanism of simultaneous nitrification and denitrification in integrated fixed-film activated sludge sequencing batch reactors

Bioresource Technology, Journal Year: 2023, Volume and Issue: 387, P. 129616 - 129616

Published: Aug. 6, 2023

Language: Английский

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New insights into substrates shaped nutrients removal, species interactions and community assembly mechanisms in tidal flow constructed wetlands treating low carbon-to-nitrogen rural wastewater

Water Research, Journal Year: 2024, Volume and Issue: 256, P. 121600 - 121600

Published: April 11, 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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Biochar and zero-valent iron alleviated sulfamethoxazole and tetracycline co-stress on the long-term system performance of bioretention cells: Insights into microbial community, antibiotic resistance genes and functional genes

Environmental Research, Journal Year: 2024, Volume and Issue: 248, P. 118271 - 118271

Published: Jan. 21, 2024

Language: Английский

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Nitrogen and sulfur cycling and their coupling mechanisms in eutrophic lake sediment microbiomes

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 928, P. 172518 - 172518

Published: April 15, 2024

Language: Английский

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Effect of root exudation on community structure of rhizosphere microorganism of three macrophytes during treating swine wastewater

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 376, P. 124551 - 124551

Published: Feb. 16, 2025

Language: Английский

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High-efficient nitrogen and phosphorus removal and its mechanism in a partially unsaturated constructed wetland with Fe-C micro-electrolysis substrate

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 431, P. 133252 - 133252

Published: Oct. 31, 2021

Language: Английский

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Co-composting of faecal sludge and carbon-rich wastes in the earthworm's synergistic cooperation system: Performance, global warming potential and key microbiome

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 857, P. 159311 - 159311

Published: Oct. 8, 2022

Language: Английский

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Exploring recycled agricultural wastes for high-rate removal of nitrogen in wastewater: Emphasizing on the investigation of the inner driving force and comparison with conventional liquid carbon sources

Water Research, Journal Year: 2022, Volume and Issue: 226, P. 119292 - 119292

Published: Oct. 25, 2022

Language: Английский

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Seasonal succession of microbial community co-occurrence patterns and community assembly mechanism in coal mining subsidence lakes

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: Feb. 3, 2023

Coal mining subsidence lakes are classic hydrologic characteristics created by underground coal and represent severe anthropogenic disturbances environmental challenges. However, the assembly mechanisms diversity of microbial communities shaped such environments poorly understood yet. In this study, we explored aquatic bacterial community ecological processes in during winter summer using 16S rRNA gene sequencing. We observed that clear structure was driven seasonality more than habitat, α-diversity functional were significantly higher (p < 0.001). Canonical correspondence analysis indicated temperature chlorophyll-a most crucial contributing factors influencing season variations lakes. Specifically, explained 18.26 14.69% variation, respectively. The variation deterministic but dominated stochastic summer. Compared to winter, network exhibited a average degree, modularity, keystone taxa (hubs connectors network), thereby forming highly complex stable structure. These results illustrate heterogeneity provide new insights into revealing effects seasonal succession on lake ecosystems.

Language: Английский

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