| 摘要 |
A method for removing an organic compound in water at a high efficiency by separating an organic compound, particularly 1,2-dichloroethane, carbon tetrachloride and chloroform, dissolved in water or forming two liquid phases with water from a water phase, comprises: (i) charging water containing an organic compound into a first distillation column A for conducting distillation to take the organic compound and water out of the top of the first distillation column and to obtain a bottom liquor 5 containing the organic compound at a lower content from the bottom of the first distillation column, and (ii) charging the bottom liquor of the first distillation column into a second distillation column D operated at a pressure lower than that in the first distillation column for conducting distillation, to take a gas distillate containing a large amount of the organic compound out of the top of the second distillation column and to obtain a bottom liquor 7 containing the organic compound at such a content as to be lower than the organic compound content in the charged liquor from the bottom of the second distillation column. <IMAGE> |
