PROCEDURE AND INSTALLATION OF BIOLOGICAL TREATMENT, MAINLY FOR NITRIFICATION AND / OR DENITRIFICATION OF A WASTE WATER CONTAINING NITROGENATED CONTAMINATION.

摘要

PROCEDURE FOR THE BIOLOGICAL TREATMENT OF A WASTEWATER TO BE TREATED THAT HAS NITROGENATED CONTAMINATION, ACCORDING TO WHICH: AN INCIDENT CURRENT OF THIS WATER IS INTRODUCED IN A MIXING AREA OF AT LEAST ONE COMPARTMENT (A, A '', A ") IN WHICH, BY TURBULENT MECHANICAL AGITATION, IS PLACED IN SUSPENSION IN THIS WATER A GRANULAR MATTER LITTLE CONSUMABLE AND LOWLY SOLUBLE, LOADING BIOMASS, WHICH IS MAINTAINED AT A CONSTANT MASS CONCENTRATION; THIS WATER IS CIRCULATED IN A GRANULAR MATTER IN A SEPARATION ZONE (B, B '', B "), FROM WHICH CLARIFIED WATER IS EXTRACTED, ON THE ONE hand, AND BY OTHER GRANULAR MATTER LOADED WITH BIOMASS; AND ALMOST TOTALITY OF THE ACTIVE BIOMASS FIXED ON SUCH GRANULAR MATERIAL TO THE MIXING AREA IS RETURNED BY FORCED RECYCLING (A, A '', A ").