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


Record 1 1981-01-26


Subject field(s)
  • Equipment and Tools (Water Supply)
  • Wastewater Treatment

Oil and grease removal as a pre-treatment process at town sewage treatment plants. ... For greater efficiency, a separate oil flotation unit is necessary; air is introduced at the bottom of the aeration zone, and clarification is ensured in a calm zone designed for an ascending velocity of 15 to 20 m/h (5 to 7 gal/[square foot] min) with a maximum speed of 25 m/h (8.5 gal/[square foot] min).


  • Équipement et outillage (Alimentation en eau)
  • Traitement des eaux usées

Dégraissage-déshuilage en prétraitement de station d'épuration d'eaux résiduaires urbaines. [...] Une meilleure efficacité nécessite un dégraisseur-déshuileur séparé, avec insufflation d'air à la partie inférieure de la zone d'aération et sédimentation dans une zone tranquille calculée pour une vitesse ascensionnelle de 15 à 20 m/h, avec un maximum de 25 m/h.


Save record 1

Copyright notice for the TERMIUM Plus® data bank

© Public Works and Government Services Canada, 2021
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau


Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: