TERMIUM Plus®

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

RECALCITRANT SUBSTANCE [1 record]

Record 1 2015-12-01

English

Subject field(s)
  • Pollutants
  • Water Treatment (Water Supply)
DEF

A substance whose chemical composition remains unchanged by natural processes or is changed only extremely slowly, for example one which is not biodegradable in a sewage treatment process.

OBS

conservative substance; persistent substance; recalcitrant substance; refractory substance: terms and definition standardized by ISO.

French

Domaine(s)
  • Agents de pollution
  • Traitement des eaux
DEF

Substance dont la composition chimique demeure inchangée sous l'action des processus naturels ou est modifiée extrêmement lentement, par exemple, lorsqu'une substance n'est pas biodégradable dans un procédé de traitement des eaux usées.

OBS

substance rémanente; substance persistante; substance récalcitrante; substance réfractaire : termes et définition normalisés par l'ISO.

Spanish

Campo(s) temático(s)
  • Agentes contaminantes
  • Tratamiento del agua
DEF

Sustancia cuya composición química permanece inalterada por los procesos naturales, o que se modifica sólo de manera muy lenta por ejemplo, una sustancia que no es biodegradable en un proceso de tratamiento de aguas residuales.

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