ダイオキシン類汚染土壌・底質の無害化技術(その他の環境関連技術(7),その他の環境関連技術)

概要

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Using the fixed-bed type reaction test facility -filled with quartz sands and equipped with the mass analysis detector, we conducted the decomposition experiment of the ortho-chlorophenol (o-CP) as a precursor of the dioxins, to evaluate the effect of various metal compounds added to the quartz sand. Under the test conditions of 10% O_2 and the reaction temperature of 450℃, we confirmed that the o-CP was decomposed to CO_2, H_20 and HCL It was also found that the catalytic effect of the metal compounds on the decomposition of o-CP was greater in the order of CuCl, CuCl_2, CuO, FeCl_3, Fe_2O_3 and FeO. In the next stage, we conducted the detoxification experiments of the actual soils and sediments contaminated by dioxins using the rotary-kiln type test facility with the treatment capacity of 10 to 20 kg/h, and we confirmed that the dioxins in the soils and sediments were decomposed more than 99% and the vaporization of the dioxins was less enough.
一般社団法人日本機械学会の論文
2004-07-11