Patent ID: 6875317
Filing Date: 2005-04-05
Classification: C10B,C10J,Y02P

Abstract:
1. A waste disposal method, characterized in that wastes mainly containing any one or more of raw garbage, waste lumber, and paper diapers are exposed to high-temperature steam in an oxygen-free state to be carbonized, and the wastes having been carbonized by being heated by said high-temperature steam are taken out into the air after said carbonized wastes are exposed to low-temperature steam to decrease the temperature thereof, said wastes being carbonized using said high-temperature steam of 510 to 900° C. produced by further superheating feed steam from a boiler with a steam superheater, said low-temperature steam used to decrease the temperature of said carbonized wastes having a temperature of 100 to 120° C., said steam having been used for disposal of said wastes being deodorized by being mixed with exhaust gas from the boiler or the steam superheater, and by being exposed to a high temperature of 800° C. or higher.