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BI-FILTER [1 record]

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Record 1 1981-01-26

English

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

Bi-filters ... They include a thick layer of sand with a homogeneous grading divided into two parts by a central collecting grid. Consequently, filtration is carried out from the top and the bottom towards the middle ...

French

Domaine(s)
  • Mesures antipollution
  • Traitement des eaux usées
CONT

Bi-filtres [...] Ils comportent une couche épaisse de sable à granulométrie homogène séparée en deux fractions par une grille de reprise médiane. La filtration s'effectue donc à partir du haut et du bas vers le milieu [...]

Spanish

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