Process and device for biological treatment of sewage

摘要

Biological treatment of sewage containing heterotrophic or autotrophic microorganisms, consisting in that the sewage is separated by filtration of the microorganisms particularly in a biological reactor 1 with the aid preferably of a granular filtration layer 3 which is cleaned during the infiltration process by a regeneration apparatus 7 equipped with a washing drum 8a with horizontal rods and a conduit 10 through which the sludge is discharged towards the activation tank. <IMAGE>