Anaerobic digester for organic waste

Details Anaerobic digester for organic waste Anaerobic digester for organic waste

1979-10-01

1981-06-23

Garris, Bradley

Gas: heating and illuminating

Generators

Retort

48197A, 71 10, 210608, 210612, 210629, 210180, 435313, 435316, 435801, 435802, 435167, 422184, 422230, 422231, C02F 1104, C12M 104, C12P 502

Patent

active

042748380

ABSTRACT:
Organic wastes, such as animal manure, are fed into an elongated digester tank at one end thereof in slurry form. The slurry slowly moves to the other end of the tank for subsequent disposal. During the residence time in the tank decomposition of the waste occurs yielding methane gas and carbon dioxide. A cover over the digester collects the gas generated. A heat exchange arrangement causes transverse stirring of the slurry as it passes through the tank enhancing the decomposition process. Scum suppressors on the surface of the slurry prevent interference with the formation and release of the methane gas. The settling of solids is controlled by the use of gas jets disposed along the bottom of the tank.

REFERENCES:
patent: 1314955 (1919-09-01), Flicker
patent: 1690682 (1928-11-01), Imhoff et al.
patent: 3246761 (1966-04-01), Bryan et al.
patent: 3981803 (1976-09-01), Coulthard
patent: 4100023 (1978-07-01), McDonald
patent: 4169048 (1979-09-01), Albers, Sr.

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