| 摘要 |
PROBLEM TO BE SOLVED: To provide a treating method for detoxifying organic chlorine compounds such as tetrachloroethylene contained, for example, in industrial waste water, groundwater or soil, into a harmless state at normal temperature and pressure in a short time. SOLUTION: This treating method for the organic chlorine compounds comprises processes of: extracting the organic chlorine compounds from a treated solution containing the organic chlorine compounds and transferring it into an organic solvent; and bringing a reducing catalyst into contact with the extracted solution and reducing the organic chlorine compounds. An 8C or less alcohol is used as the organic solvent in the extraction process, and the reduction treatment is carried out at the normal temperature and pressure. The organic solvent of at least one kind selected from methanol, ethanol and propanol, and a reduction catalyst with a metal having a reduction action carried on the surface of activated carbon, are preferably used. COPYRIGHT: (C)2004,JPO&NCIPI |
