TREATMENT OF INCINERATION WASTE GAS

摘要

PROBLEM TO BE SOLVED: To efficiently collect heavy metals, dioxin and fly ash in a state easy in the treatment of the collected ash. SOLUTION: In this treating method of incineration furnace waste gas of two stages constituted of a pre-stage for removing mainly the heavy metals, dioxin and fly ash and a post-stage for removing mainly an acidic gas, the operation of the pre-stage is carried out by spraying an activated carbon for adsorbing the heavy metals and dioxin and an alkali for absorbing SOx in the waste gas and using a bag filter at <=180 deg.C. As the alkali for absorbing SOx, Ca(OH)2 , NaHCO3 or the mixture in preferably used.