TERMIUM Plus®

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FILTRATION LENTE [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1982-03-11

English

Subject field(s)
  • Water Treatment (Water Supply)
OBS

The object of slow filtration is to purify surface waters without prior coagulation or sedimentation. The colloidal matter is coagulated by the enzymes secreted by algae and by microorganisms which are retained on the sand (biological membrane).

French

Domaine(s)
  • Traitement des eaux
OBS

La filtration lente a pour but l'épuration des eaux de surface, sans coagulation ni décantation préalable. La coagulation des matières colloïdales est réalisée par les diastases secrétées par des algues et des micro-organismes qui se fixent sur le sable (membrane biologique).

Spanish

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