Sewage sludge and organic garbage composting apparatus

Details Sewage sludge and organic garbage composting apparatus Sewage sludge and organic garbage composting apparatus

1990-12-06

1992-04-07

Lacey, David L.

Chemistry: molecular biology and microbiology

Miscellaneous

435312, 435313, 422184, 422209, 261 87, 366281, 366282, 366283, C12M 1107

Patent

active

051028034

ABSTRACT:
An apparatus for composting city sewage sludge and organic garbage to provide rich humus topsoil for city and private use. A continuous rotation of an aeration lift arm over the floor of a cylindrical tank, lifts the sludge to split it open to provide controlled dynamic aeration therewithin and to maintain bacteria action over periods of time and on demand in response to a temperature probe set at 150 degrees Fahrenheit. Cooperating equipment comprises an air blower, a motor driven arm operable upon a central drive sleeve device to rotate the aerator lift arm, and an exhaust pump for removing hot gases resulting from the bacteria action. The full compost mass is lifted over an inclined surface to a height and spilled over a raised trailing edge of the aerator arm closed with a back wall plate. The back wall plate has valved openings through which varying amounts of air are delivered from the hollow aerator arm to different radially volume-extended mass areas. These openings are supplied from plenum spaces with damper valves adjustably controlled from a switchbox exteriorly carried on the motor drive arm. A motor drive mechanism carried on the drive arm has a sprocket pinion that travels along a sprocket chain stationarily carried on the fixed sprocket on the top of the tank to pull the arm thereabout.

REFERENCES:
patent: 1618461 (1923-01-01), Matchette
patent: 3400051 (1968-09-01), Hofschneider
patent: 3905585 (1975-09-01), Wallman
patent: 4249828 (1981-02-01), Condolios
patent: 4255389 (1981-03-01), Jung et al.

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