TERMIUM Plus®

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

DOUBLE-LAYER FILTER [1 record]

Record 1 2020-09-30

English

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

Most modern water-treatment plants now use rapid dual-media filters following coagulation and sedimentation. A dual-media filter consists of a layer of anthracite coal above a layer of fine sand. The upper layer of coal traps most of the large floc, and the finer sand grains in the lower layer trap smaller impurities.

French

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

Un filtre à double couche (CAG [charbon actif en grains] et sable) est utilisé lorsque la réduction de la turbidité, ainsi que l'adsorption et l'élimination des contaminants sont regroupées dans un procédé faisant intervenir un seul appareil. Le filtre à double couche (habituellement situé après la sédimentation) sera probablement exposé à de plus fortes concentrations de COD [carbone organique dissous], et ce filtre sera épuisé plus rapidement.

Spanish

Campo(s) temático(s)
  • Equipo y herramientas (Abastecimiento de agua)
  • Tratamiento de aguas residuales
  • Tratamiento del agua
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