| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an exhaust gas processing method which supplies the exhaust gas containing bad smell components or moisture to a regenerative combustion type of deodorizer without condensing the bad smell components in its distributing valve or a duct. SOLUTION: A method of processing exhaust gas supplies a dehumidifying column 6 with exhaust gas containing bad smell components discharged from a dehydrated sludge drier 3, cools it to a specified temperature, and then supplies this exhaust gas to a deodorizer. The heat is exchanged between the air supplied separately and the exhaust gas from the drier, it is supplied to the exhaust gas from the dehumidifying column after being heated. This exhaust gas is supplied for deodorization to a regenerative combustion type deodorizer 10 which is equipped with a plurality of heat accumulating chambers 11A and 11B which performs the supply of exhaust gas to the combustion chamber 13, the supply of purge gas, and the discharge of the processing gas whose bad smell components are thermally cracked in the combustion chamber by switching them in order in every specified time, after being heated to above the temperature of condensation of bad smell components besides being over the dew concentration point of the moisture within the exhaust gas.</p> |
