| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for simply performing the decomposition of dioxins contained in fly ash, soil or the like without forming toxic byproducts. SOLUTION: The decomposition method, which decomposes or dechlrinates dioxins in an object to be treated by bringing dioxins contained in the object to be treated to a Grignard reagent state, consists of a dehydration process for removing moisture of the object to be treated containing dioxins, a mixing process for mixing a magnesium powder with the object to be treated obtained in the dehydration process, a heating process for heating the object to be treated at least at one point of time selected from points of time before, after and during the mixing process and an acceleration liquid adding process for adding an acceleration liquid, which generates reducing reaction, to dioxins held to the Grignard reagent state in the object to be treated obtained after the mixing process and the heating process.
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