Process for drying and granulating sewage sludge

Details Process for drying and granulating sewage sludge Process for drying and granulating sewage sludge

1979-07-09

1981-01-20

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 14, 100 37, 210768, F26B 700, F26B 514

Patent

active

042453968

ABSTRACT:
A process for drying and granulating sewage sludge. Wet sewage sludge is at least partially dried in a thermal drying zone, which preferably is a toroidal dryer. A plasticizer is added to the dried sludge and the resultant mixture is extruded to form fertilizer granules. An extrusion aid may also be admixed with the dried sludge.

REFERENCES:
patent: 4098006 (1978-07-01), Maffet
patent: 4099336 (1978-07-01), Maffet

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