Composting system utilizing air recirculation

Details Composting system utilizing air recirculation Composting system utilizing air recirculation

1991-04-16

1992-09-08

Spear, Frank

Liquid purification or separation

Processes

Treatment by living organism

55 89, B01J 800

Patent

active

051455811

ABSTRACT:
An in-vessel composting system wherein the exhaust gas from aerated compost feed material is pretreated by scrubbers and then by a chiller/condenser. A small portion of this cool, relatively dry, ammonia-free gas is passed through an activated carbon column and discharged to the atmosphere. The remaining portion of the exhaust gas is supplemented by ambient air to make-up for the volume of air vented and recirculated through the composting system until such time as the system requires a fresh supply of oxygen. The system is then recharged by blowing in ambient air and venting the spent recirculating air.

REFERENCES:
patent: 3895916 (1975-07-01), Rosner
patent: 4010098 (1977-03-01), Fassell
patent: 4882058 (1989-11-01), Burton
patent: 4956002 (1990-09-01), Egarian
patent: 5017351 (1991-05-01), Rafson

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