| 摘要 |
PROBLEM TO BE SOLVED: To provide a waste gas treatment method and a treatment apparatus capable of detoxicating a waste gas containing water-insoluble and combustion- supporting halogen gases as harmful gases while maintaining high detoxification ratio and safety at low running cost. SOLUTION: In a waste gas treatment method for detoxicating water-insoluble and combustion-supporting halogen gases, hydrogen gas is mixed with a waste gas containing these gases and the brought into contact with a reduction catalyst to carry out reduction reactions and then the produced hydrogen halide gases are absorbed in an absorption solution by a wet type scrubber or adsorbed in an adsorbent in an adsorption apparatus. The water-insoluble and combustion- supporting halogen gases are preferably chlorine, nitrogen trifluoride, chlorine trifluoride, or a gas mixture containing two or more of these gases. |
