Application of external carbon source in heterotrophic denitrification of domestic sewage: A review

The Science of The Total Environment, Год журнала: 2022, Номер 817, С. 153061 - 153061

Опубликована: Янв. 11, 2022

Язык: Английский

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Vertically stratified methane, nitrogen and sulphur cycling and coupling mechanisms in mangrove sediment microbiomes

Microbiome, Год журнала: 2023, Номер 11(1)

Опубликована: Апрель 5, 2023

Abstract Background Mangrove ecosystems are considered as hot spots of biogeochemical cycling, yet the diversity, function and coupling mechanism microbially driven cycling along sediment depth mangrove wetlands remain elusive. Here we investigated vertical profile methane (CH 4 ), nitrogen (N) sulphur (S) genes/pathways their potential mechanisms using metagenome sequencing approaches. Results Our results showed that metabolic pathways involved in CH , N S were mainly shaped by pH acid volatile sulphide (AVS) a depth, AVS was critical electron donor impacting oxidation denitrification. Gene families denitrification significantly ( P < 0.05) decreased could be coupled S-driven denitrifiers, such Burkholderiaceae Sulfurifustis surface (0–15 cm). Interestingly, all denitrifier metagenome-assembled genomes (MAGs) appeared to incomplete denitrifiers with nitrate/nitrite/nitric oxide reductases (Nar/Nir/Nor) but without nitrous reductase (Nos), suggesting sulphide-utilizing groups might an important contributor 2 O production sediment. methanogenesis reduction increased depth. Based on both network MAG analyses, sulphate-reducing bacteria (SRB) develop syntrophic relationships anaerobic oxidizers (ANMEs) direct transfer or zero-valent sulphur, which would pull forward co-existence methanogens SRB middle deep layer sediments. Conclusions In addition offering perspective distribution genes/pathways, this study emphasizes role emissions various possible ANMEs The exploration provides novel insights into future synthetic microbial community construction analysis. This also has implications for predicting ecosystem functions within context environmental global change.

Язык: Английский

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A new insight on simultaneous water purification and greenhouse gas reduction by constructing sulfur-siderite driven autotrophic denitrification pathways in constructed wetlands

Water Research, Год журнала: 2025, Номер 274, С. 123130 - 123130

Опубликована: Янв. 15, 2025

Язык: Английский

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Intensifying anoxic ammonium removal by manganese ores and granular active carbon fillings in constructed wetland-microbial fuel cells: Metagenomics reveals functional genes and microbial mechanisms

Bioresource Technology, Год журнала: 2022, Номер 352, С. 127114 - 127114

Опубликована: Апрель 5, 2022

Язык: Английский

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Recent advances in constructed wetlands methane reduction: Mechanisms and methods

Frontiers in Microbiology, Год журнала: 2023, Номер 14

Опубликована: Фев. 3, 2023

Constructed wetlands (CWs) are artificial systems that use natural processes to treat wastewater containing organic pollutants. This approach has been widely applied in both developing and developed countries worldwide, providing a cost-effective method for industrial treatment the improvement of environmental water quality. However, due large carbon inputs, CWs is produced varying amounts CH

Язык: Английский

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Effects of anaerobic oxidation of methane (AOM) driven by iron and manganese oxides on methane emissions in constructed wetlands and underlying mechanisms

Chemical Engineering Journal, Год журнала: 2024, Номер 495, С. 153539 - 153539

Опубликована: Июнь 26, 2024

Язык: Английский

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

The Science of The Total Environment, Год журнала: 2024, Номер 928, С. 172518 - 172518

Опубликована: Апрель 15, 2024

Язык: Английский

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Evaluation of organic matter and nitrogen removals, electricity generation and bacterial community responses in sediment microbial fuel cell coupled with Vallisneria natans

Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(3), С. 110058 - 110058

Опубликована: Май 5, 2023

Язык: Английский

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Greenhouse gas emissions from constructed wetlands: A bibliometric analysis and mini-review

The Science of The Total Environment, Год журнала: 2023, Номер 906, С. 167582 - 167582

Опубликована: Окт. 4, 2023

Язык: Английский

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Greenhouse Gases Emissions of Constructed Wetlands: Mechanisms and Affecting Factors

Water, Год журнала: 2023, Номер 15(16), С. 2871 - 2871

Опубликована: Авг. 9, 2023

Constructed wetlands (CWs) widely applied for wastewater treatment release significant greenhouse gases (GHGs), contributing to global warming. It is essential characterize the comprehensive source-sink effects and affecting factors of GHGs in CWs, offering references guidance designing operating CWs better control GHG emissions. However, current reviews focus on individual emission mechanisms. With aid Web Science Core Collection database, relevant literature carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) emissions after 2010 was collected organized. As highlighted review, can produce transmit these into atmosphere, forming sources sequestration CO2 through plants photosynthesis, sinks GHGs. Their overall performance depends many factors. Hybrid Cyperus papyrus, alternifolius, Iris pseudacorus, adsorption substrates like Fe-C, low temperatures, a C/N ratio five are beneficial mitigation CWs. Future studies should in-depth research mechanisms benefits microorganisms relation This review provided understanding major bridging gap this field, helping researchers clarify context, providing valuable in-sights further scientific investigations.

Язык: Английский

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