Internal mechanism of microbial nitrogen removal under prolonged low-temperature stress: A focus on microbial communities, metabolic pathways, and microbial function

Chemical Engineering Journal, Год журнала: 2024, Номер 500, С. 157522 - 157522

Опубликована: Ноя. 1, 2024

Язык: Английский

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Boosting low-temperature sulfur-based autotrophic-heterotrophic denitrification using electrical stimulation in a continuous-flow bioreactor

Journal of Water Process Engineering, Год журнала: 2025, Номер 70, С. 107087 - 107087

Опубликована: Янв. 25, 2025

Язык: Английский

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Genome-resolved metagenomic analysis reveals a novel denitrifier with truncated nitrite reduction pathway from the genus SC-I-84

Water Research, Год журнала: 2025, Номер 282, С. 123598 - 123598

Опубликована: Апрель 16, 2025

Язык: Английский

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Differences in microbial methane metabolism to carbon species determine outcome of denitrification versus DNRA competition in low C/N mariculture wastewater treatment system

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116855 - 116855

Опубликована: Апрель 1, 2025

Язык: Английский

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A new strategy for greenhouse gas emission reduction in the anaerobic/anoxic/oxic biological treatment process using exogenous N-acyl-homoserine lactones, a quorum-sensing signaling molecules

Water Science & Technology, Год журнала: 2024, Номер 90(10), С. 2764 - 2783

Опубликована: Ноя. 11, 2024

ABSTRACT In this study, the impact of exogenous N-acyl-homoserine lactones (AHLs) on greenhouse gas (GHG) emissions in anaerobic/anoxic/oxic (A/A/O) systems was analyzed by manipulating type and dosage AHLs. The mechanism behind AHLs’ effects GHG explored through changes microbial community structure. Findings revealed that N-octanoyl-homoserine lactone (C8-HSL) high-dose N-dodecanoyl-homoserine (C12-HSL) increased emissions, while low-dose C12-HSL decreased them. Moreover, C8-HSL promoted methane (CH4) nitrous oxide (N2O) production affecting sludge particle size. Bacterial analysis highlighted Acinetobacter Flavobacterium's roles N2O acetate methanogens synthesis. Metabolic pathway showed acetic acid (CH3COOH) methanogenic main pathway; influenced emission changing reductase (Nos) abundance. This research underscores AHL-based quorum sensing's potential mitigating during activated wastewater treatment, offering insights into their application key activities. Limitations include absence reduction signaling molecules need for further investigation accumulation.

Язык: Английский

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Importance of natural pyrite in treating carbon-constraint wastewater by constructed wetland-microbial fuel cells

Process Safety and Environmental Protection, Год журнала: 2024, Номер unknown

Опубликована: Дек. 1, 2024

Язык: Английский

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