| 摘要 |
PURPOSE:To efficiently and cost-effectively decomposed a volatile org. halogen compd. with lessened energy without forming by-products by bringing a volatile org. halogen compd.-contg. gas and an adsorbent into contact and regenerating the satd. adsorbent with steam, then bringing the regenerated waste liquid into contact with a reducing agent in the presence of a metallic catalyst. CONSTITUTION:The volatile org. halogen compd.-contg. water in a raw water tank 1 is supplied to the upper part of a dissipation column 3 where the water comes into counter current contact with air when the air is blown from a blower 4. The volatile org. halogen compd. is thus migrated to the air side. The compd. is absorbed away by the adsorbent when the water is sent into an adsorption column 6. The removed air is released into the atm. The steam is sent from a steam generator 7 into the adsorption column 6 to regenerate the adsorbent when the adsorbent in the adsorption column 6 attains sated. adsorption. The regenerated waste gas is condensed in a condenser 8 to the regenerated waste liquid. This waste liquid is brought as it is or the aeration gas thereof is brought into contact with the reducing agent, such as gaseous hydrogen, in the presence of the metallic catalyst, by which the volatile org. halogen compd. is decomposed. |
