Patent ID: 11952300
Assignee: TRANE INTERNATIONAL INC.
Field: Environmental technology (Chemistry)
Classification: CPC C  Y | IPC C

Claim 11:
12. The anaerobic waste digestion system of claim 11, wherein the first phase particle separator includes the screen separator, and the DCAF separator includes:
a clear well for receiving feedstock particles generally smaller than the predetermined size suitable for digestion,
a plurality of adjusting baffles and separation zones, the adjusting baffles being adapted to cause the residence time and a hydrodynamic trajectory of influent slurry particles in the separation zones to vary with the flow rate of the influent slurry so as to cause particles larger than the predetermined size suitable for digestion to separate from the influent flow and move downward, and to allow particles smaller than the predetermined size suitable for digestion to move laterally into the clear well,
a sludge manifold disposed below the separation zones for receiving particles larger than the predetermined size suitable for digestion, the sludge manifold being adapted to convey the slurry particles larger than the predetermined size suitable for digestion to the screen separator,
a plurality of sludge hoppers disposed below the separation zones for directing downward moving particles into the sludge manifold,
a CO2 manifold connected in fluid communication with the separation zones for admitting CO2 bubbles into the separation zones, so as to cause slurry particles larger than the predetermined size suitable for digestion to float upward,
a scum hopper adapted to receive floating slurry particles from the conveyor and convey the particles to the sludge manifold, the conveyor including a plurality of blades to move floating slurry particles into the scum hopper, and
a seeding line connected in fluid communication between the screen separator and the anaerobic digester to convey effluent to the anaerobic digester, so as to maintain an active bacterial culture for digestion.