Regulation of key N2O production mechanisms during biological water treatment

Carlos Domingo-Felez*, Barth F. Smets

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Nitrous oxide (N2O) is a potent greenhouse gas emitted during biological treatment of residual waters and can contribute significantly to the carbon footprint of the overall treatment, potentially offsetting energy-positive strategies. N2O production is mediated by three known biological pathways and through abiotic reactions, driven by biologically generated substances such as hydroxylamine and nitrite. The contributions of these different mechanism are determined by the environmental conditions and the resident microbial community. The newly discovered phenotypic diversity among aerobic ammonia oxidizers and the modularity of denitrifying pathway determines N2O emissions. Isotopic methods can be used to quantify N2O production pathways in water treatment systems, and mechanistic models can already predict N2O emissions, but limitations on their accuracy and precision still exist.
Original languageEnglish
JournalCurrent Opinion in Biotechnology
Volume57
Pages (from-to)119-126
ISSN0958-1669
DOIs
Publication statusPublished - 2019

Keywords

  • Water Treatment Techniques
  • Air Pollution Sources
  • Environmental Engineering
  • Organic Compounds
  • Inorganic Compounds
  • Amines
  • Ammonia
  • Carbon footprint
  • Greenhouse gases
  • Nitrogen oxides
  • Accuracy and precision
  • Biological treatment
  • Different mechanisms
  • Environmental conditions
  • Microbial communities
  • Phenotypic diversity
  • Production mechanisms
  • Water treatment systems
  • Biological water treatment

Cite this

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title = "Regulation of key N2O production mechanisms during biological water treatment",
abstract = "Nitrous oxide (N2O) is a potent greenhouse gas emitted during biological treatment of residual waters and can contribute significantly to the carbon footprint of the overall treatment, potentially offsetting energy-positive strategies. N2O production is mediated by three known biological pathways and through abiotic reactions, driven by biologically generated substances such as hydroxylamine and nitrite. The contributions of these different mechanism are determined by the environmental conditions and the resident microbial community. The newly discovered phenotypic diversity among aerobic ammonia oxidizers and the modularity of denitrifying pathway determines N2O emissions. Isotopic methods can be used to quantify N2O production pathways in water treatment systems, and mechanistic models can already predict N2O emissions, but limitations on their accuracy and precision still exist.",
keywords = "Water Treatment Techniques, Air Pollution Sources, Environmental Engineering, Organic Compounds, Inorganic Compounds, Amines, Ammonia, Carbon footprint, Greenhouse gases, Nitrogen oxides, Accuracy and precision, Biological treatment, Different mechanisms, Environmental conditions, Microbial communities, Phenotypic diversity, Production mechanisms, Water treatment systems, Biological water treatment",
author = "Carlos Domingo-Felez and Smets, {Barth F.}",
year = "2019",
doi = "10.1016/j.copbio.2019.03.006",
language = "English",
volume = "57",
pages = "119--126",
journal = "Current Opinion in Biotechnology",
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publisher = "Elsevier",

}

Regulation of key N2O production mechanisms during biological water treatment. / Domingo-Felez, Carlos; Smets, Barth F.

In: Current Opinion in Biotechnology, Vol. 57, 2019, p. 119-126.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Regulation of key N2O production mechanisms during biological water treatment

AU - Domingo-Felez, Carlos

AU - Smets, Barth F.

PY - 2019

Y1 - 2019

N2 - Nitrous oxide (N2O) is a potent greenhouse gas emitted during biological treatment of residual waters and can contribute significantly to the carbon footprint of the overall treatment, potentially offsetting energy-positive strategies. N2O production is mediated by three known biological pathways and through abiotic reactions, driven by biologically generated substances such as hydroxylamine and nitrite. The contributions of these different mechanism are determined by the environmental conditions and the resident microbial community. The newly discovered phenotypic diversity among aerobic ammonia oxidizers and the modularity of denitrifying pathway determines N2O emissions. Isotopic methods can be used to quantify N2O production pathways in water treatment systems, and mechanistic models can already predict N2O emissions, but limitations on their accuracy and precision still exist.

AB - Nitrous oxide (N2O) is a potent greenhouse gas emitted during biological treatment of residual waters and can contribute significantly to the carbon footprint of the overall treatment, potentially offsetting energy-positive strategies. N2O production is mediated by three known biological pathways and through abiotic reactions, driven by biologically generated substances such as hydroxylamine and nitrite. The contributions of these different mechanism are determined by the environmental conditions and the resident microbial community. The newly discovered phenotypic diversity among aerobic ammonia oxidizers and the modularity of denitrifying pathway determines N2O emissions. Isotopic methods can be used to quantify N2O production pathways in water treatment systems, and mechanistic models can already predict N2O emissions, but limitations on their accuracy and precision still exist.

KW - Water Treatment Techniques

KW - Air Pollution Sources

KW - Environmental Engineering

KW - Organic Compounds

KW - Inorganic Compounds

KW - Amines

KW - Ammonia

KW - Carbon footprint

KW - Greenhouse gases

KW - Nitrogen oxides

KW - Accuracy and precision

KW - Biological treatment

KW - Different mechanisms

KW - Environmental conditions

KW - Microbial communities

KW - Phenotypic diversity

KW - Production mechanisms

KW - Water treatment systems

KW - Biological water treatment

U2 - 10.1016/j.copbio.2019.03.006

DO - 10.1016/j.copbio.2019.03.006

M3 - Journal article

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VL - 57

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JO - Current Opinion in Biotechnology

JF - Current Opinion in Biotechnology

SN - 0958-1669

ER -