228 キルン式熱分解溶融プロセスによるカーシュレッダーダストの処理特性(燃焼・ガス化(II))(廃棄物処理技術)

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This paper reports on the results obtained by treating automobile shredded residue in a kiln-type pyrolysis and melting plant. The results are as follows. (1) The amount of recycled aluminum and ferrous metals was about nine times as much as obtained with conventional municipal solid waste (MSW) treatment. (2) Slag leaching performance was excellent and the release of six heavy metals such as Pb,Cr^<6+> satisfied soil environment regulations. No dioxin in slag was detected. Furthermore, metal-Fe content of slag was very low, which is advantageous for slag utilization in the civil engineering field. (3) Due to the high temperature combustion of the pyrolysis gas and recycled carbon at around 1300℃ and a 1.2 air excess ratio, the formation of dioxin was suppressed. Furthermore, as the result of feeding activated carbon to both fabric filters, dioxin emissions were below 0.01ng-TEQ/m^3N at the stack. (4) Although the amount of dechlorinating agent was increased to the fabric filter for high HCl content in the flue gas, bulk reduction of the waste to less than 1/38 was achieved, as compared with 1/200 for MSW treatment.
一般社団法人日本機械学会の論文
2001-07-09