TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

denitrification [2 records]

Record 1 2015-09-23

English

Subject field(s)
  • Water Treatment (Water Supply)
  • Biochemistry
  • Biotechnology
DEF

The reduction of nitrate or nitrite to liberate nitrogen or nitrous oxide, usually by the action of bacteria.

OBS

denitrification: term and definition standardized by ISO.

French

Domaine(s)
  • Traitement des eaux
  • Biochimie
  • Biotechnologie
DEF

Réduction des nitrates et des nitrites libérant de l'azote ou de l'oxyde nitreux, généralement sous l'action des bactéries.

OBS

dénitrification : terme et definition normalisés par l'ISO.

Spanish

Campo(s) temático(s)
  • Tratamiento del agua
  • Bioquímica
  • Biotecnología
DEF

Reducción de nitrato y/o nitrito a nitrógeno [u óxido] de nitrógeno, generalmente bajo la acción de bacterias.

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Record 2 2007-07-19

English

Subject field(s)
  • Biochemistry
  • Tillage Operations (Agriculture)
DEF

A process by which nitrates or nitrites are reduced with the formation of nitrites nitrogen oxides, ammonia, or free nitrogen and which is commonly brought about (as in the soil or in sewage) by denitrifying bacteria usually resulting in the escape of nitrogen into the air.

CONT

Denitrification takes place under special conditions in both terrestrial and marine ecosystems. In general, it occurs when oxygen ... is depleted, and bacteria turn to nitrate in order to respire organic matter. Because our atmosphere is rich with oxygen, denitrification only takes place in some soils and groundwater, wetlands, poorly ventilated corners of the ocean, and in seafloor sediments.

French

Domaine(s)
  • Biochimie
  • Travaux du sol (Agriculture)
CONT

La dénitrification est un phénomène biochimique qui s'opère en profondeur dans le sol, sous l'action de bactéries spécifiques, satisfaisant leur besoin en oxygène en sol hypoxique ou anoxique, par une désoxygénation des ions nitrates.

OBS

Les nitrates du sol sont transformés en azote gazeux ou en composés volatils, perdus pour les plantes.

Spanish

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