Patent ID: 11142474

Abstract:
The facility comprises: —a first tank (1) comprising separation means (15) extending over a portion of the height of the tank, so as to define a central compartment, or tube (11), a peripheral compartment, or ring (12), and a compartment for stirring and biochemical exchanges (16) in the bottom portion of the tank, comprising stirring means (17), —a second tank (2) comprising separation means (25) extending over a portion of the height of the tank, so as to define a central compartment, or tube (21), a peripheral compartment, or ring (22), and a compartment for stirring and biochemical exchanges (26) in the bottom portion of the tank, comprising stirring means (27), —means (ALIM) for feeding the waste to be treated into the first ring—means (T) for transferring the partially treated waste from the first tube to the second ring, —means (EVAC) for discharging the treated waste out of the second tube, —advantageously pneumatic means (4, 43, 44) for circulating the waste from the first ring to the second tube.