TERMIUM Plus®

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

UP STREAM TANK [2 records]

Record 1 2011-09-01

English

Subject field(s)
  • Anti-pollution Measures
  • Water Pollution
  • Wastewater Treatment
CONT

Air stripping is a technology in which volatile organic compounds(VOCs) are transferred from extracted water to air. Typically, air stripping takes place in a packed tower(known as an air stripper) or an aeration tank. The air stripper includes a spray nozzle at the top of the tower. It sprays groundwater that has been pumped to the surface over the packing in the column. As the water descends, air is forced up through the column, stripping off the volatile compounds.... Air strippers transfer contaminants from one medium to another. There is no destruction of the contaminant. Consequently, the risks of emitting pollutants into the air must be carefully evaluated. Often, the air stream(or off-gas) is treated before it is emitted to the atmosphere.

French

Domaine(s)
  • Mesures antipollution
  • Pollution de l'eau
  • Traitement des eaux usées
CONT

Le strippage à l'air consiste à extraire l'eau souterraine et à l'écouler goutte à goutte dans un appareil qui volatilise les contaminants au moyen d'un jet d'air circulant à contresens de l'eau. Les méthodes d'aération possibles comprennent les tours à garnissage, l'aération par diffusion d'air, l'aération à plateaux et l'aération par pulvérisation.

Spanish

Save record 1

Record 2 1989-10-10

English

Subject field(s)
  • Mineral Processing (Metallurgy)
DEF

Tank into which ore pulp is fed steadily and subjected to the sorting of a stream of hydraulic water which rises at controlled rate. Heavier or coarser equal settling particles gravitate down and away via a bottom discharge, while lighter ones are carried up and out.

OBS

To scalp: to screen or sift (as grain, meal, or ore) in order to remove foreign materials or to separate out coarser grades.

French

Domaine(s)
  • Minéralurgie (Métallurgie)
DEF

Appareil utilisé dans les laveries métalliques pour séparer en catégories de grosseur des produits fins entraînés en suspension dans l'eau.

CONT

Les produits rassemblés à la base d'un hydroclasseur sont lavés sur une table; l'eau qui déborde d'un hydroclasseur avec le minerai fin qu'elle entraîne va dans l'hydroclasseur suivant, qui donne des produits plus fins, etc. Le principe des hydroclasseurs est le même que celui des caisses pointues, mais la circulation du liquide y est plus rationnelle.

Spanish

Save record 2

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