Brief description of the diffusion of sludge in the digester a bed of sludge, and the digester a bed of sludge corresponding

摘要

The present invention relates to a device for the diffusion of the sludge (10) in the digester to bed of sludge, particularly of large diameter. According to the invention, the digester comprises a. a bottom (11) consisting of a solid wall (12) is raised to its outer periphery (13); b. a cover (14) formed of a wall (15) is perforated with holes (16) distributed so as to leave a passage for the diffusion between 15% and 45% of the surface of the wall, preferably between 25% and 35%, preferably 30%; c. a power supply (17) of the diffuser placed at the center of the cover and opening out into the space formed by the combination of the bottom and cover of the diffuser, the assembly back cover / constituting a closed and sealed, the distance between the bottom and the cover being at least between 5 and 15 cm, preferably 10 cm.