| 摘要 |
<p>PURPOSE:To enhance the removal efficiency of a noxious gas, to conserve the use amount of an absorbent and to reduce operation cost, by providing plural dry waste gas treating systems injected with the powdery absorbent and collecting a reaction product in series. CONSTITUTION:An absorbent is at first injected into the waste gas 1 of an incinerator in a front stage gas treating system 5a by an injection apparatus 2a and HCl in the waste gas is removed in an absorptive reaction part 3a. A reaction product D1 is collected by a dust collector 4a. Subsequently, the absorbent is further injected into the treated gas in a post stage gas treating system 5b by an injection apparatus 2b and HCl is further removed in an absorptive reaction part 3b. After a reaction product D2 is collected by a dust collector 4b and the purified gas is discharged into the atmosphere from a chimney 7.</p> |
