Heterotrophic nitrification and aerobic denitrification process: Promising but a long way to go in the wastewater treatment

The Science of The Total Environment, Год журнала: 2021, Номер 805, С. 150212 - 150212

Опубликована: Сен. 10, 2021

Язык: Английский

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Genomics and nitrogen metabolic characteristics of a novel heterotrophic nitrifying-aerobic denitrifying bacterium Acinetobacter oleivorans AHP123

Bioresource Technology, Год журнала: 2023, Номер 375, С. 128822 - 128822

Опубликована: Март 4, 2023

Язык: Английский

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Wastewater Treatment Using Constructed Wetland: Current Trends and Future Potential

Processes, Год журнала: 2021, Номер 9(11), С. 1917 - 1917

Опубликована: Окт. 27, 2021

Constructed wetlands (CW) is an environmentally friendly technique for removing pollutants from wastewater and has been applied to municipal wastewater, petroleum refinery agriculture drainage, acid mine etc. The past decade seen a remarkable number of innovations in the exponentially growing field microbiology. This manuscript covers critical review key aspects CW, such as various types contaminants their removal mechanisms, degradation pathways, challenges opportunities, materials, applications, theory with focus on recent advances last three decades. In addition, attempt taken project future CW facilitate these by framing unsolved problems CW. Guidelines are prepared fast-growing through standardization design aspects. evaluation current state-of-the-art technology provides definitions performance metric nomenclature effort unify community. It also contains outlook emerging trends proposes research development directions.

Язык: Английский

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Heterotrophic nitrification and aerobic denitrification by a novel Acinetobacter sp. TAC-1 at low temperature and high ammonia nitrogen

Bioresource Technology, Год журнала: 2021, Номер 339, С. 125620 - 125620

Опубликована: Июль 21, 2021

Язык: Английский

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Novel Alcaligenes ammonioxydans sp. nov. from wastewater treatment sludge oxidizes ammonia to N₂ with a previously unknown pathway

Environmental Microbiology, Год журнала: 2021, Номер 23(11), С. 6965 - 6980

Опубликована: Сен. 28, 2021

Summary Heterotrophic nitrifiers are able to oxidize and remove ammonia from nitrogen‐rich wastewaters but the genetic elements of heterotrophic oxidation poorly understood. Here, we isolated identified a novel nitrifier, Alcaligenes ammonioxydans sp. nov. strain HO‐1, oxidizing hydroxylamine ending in production N 2 gas. Genome analysis revealed that HO‐1 encoded complete denitrification pathway lacks any genes coding for homologous known monooxygenases or oxidoreductases. Our results demonstrated denitrified nitrite (not nitrate) O at anaerobic aerobic conditions respectively. Further experiments inhibition did not stop production. A gene cluster ( dnfT1RT2ABCD ) was cloned enabled E . coli accumulated hydroxylamine. Sub‐cloning showed dnfAB dnfABC already cells produce further 15 NH 4 SO Transcriptome these three dnfA , dnfB dnfC were significantly upregulated response stimulation. Taken together, concluded has dnf this previously unknown di rect amm onia ox idation (Dirammox)

Язык: Английский

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Characterization of a novel salt-tolerant strain Sphingopyxis sp. CY-10 capable of heterotrophic nitrification and aerobic denitrification

Bioresource Technology, Год журнала: 2022, Номер 358, С. 127353 - 127353

Опубликована: Май 21, 2022

Язык: Английский

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Simultaneous heterotrophic nitrification and aerobic denitrification (SND) for nitrogen removal: A review and future perspectives

Environmental Advances, Год журнала: 2022, Номер 9, С. 100254 - 100254

Опубликована: Июнь 8, 2022

The lack of fresh water has accelerated efforts to improve the current treatment technology for reclamation wastewater. Simultaneous heterotrophic nitrification and aerobic denitrification (known as SND) nitrogen removal drawn increasing attention due its' high efficiency low cost. Comparing with traditional removal, SND process can achieve simultaneous within a reactor unit. Despite considerable strains isolation from various environment, application its influencing parameters, mechanism are poorly elicited represent major challenges in basic study application. review begins an update on state knowledge functioning is followed by engineering applications associated key impact parameters study. advantages shortcomings also concluded provide theoretical technical support practical optimization. following topics highlights discussion metabolic pathway SND, including most recent discovery novel oxidase dnfA (oxidizes hydroxylamine N2) strain, Alcaligenes sp. HO-1. Finally, recommended future directions related strategies proposed. Specifically, paper proposed using multi-omics strategy. Understanding will help us apply more efficiently

Язык: Английский

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Biological nitrogen removal and metabolic characteristics of a novel cold-resistant heterotrophic nitrification and aerobic denitrification Rhizobium sp. WS7

Bioresource Technology, Год журнала: 2022, Номер 362, С. 127756 - 127756

Опубликована: Авг. 9, 2022

Язык: Английский

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The advance of heterotrophic nitrification aerobic denitrification microorganisms in wastewater treatment

Bioresource Technology Reports, Год журнала: 2023, Номер 22, С. 101495 - 101495

Опубликована: Июнь 1, 2023

Язык: Английский

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Firmicutes and Bacteroidetes as the dominant microorganisms for ammonium nitrogen wastewater treatment with a low C/N ratio in BCOR

Journal of Water Process Engineering, Год журнала: 2024, Номер 65, С. 105851 - 105851

Опубликована: Июль 28, 2024

Язык: Английский

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