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Record 1 1986-02-12

English

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

French

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

La filtration enlève une certaine partie de la DBO5 et de la DCO dissoutes [...] parce que des phénomènes biologiques consommateurs de matière organique s'installent dans la masse filtrante. D'où l'idée de favoriser ces phénomènes grâce à un matériau filtrant doté d'une macroporosité : ainsi a été inventée la biolite, matériau constitué de grains d'argile expansée cuite [...], qui permet de favoriser la nidification des bactéries. Le tableau ci-après donne les rendements d'épuration comparés de filtres à sable et à biolite identiques [...].

Spanish

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