汚泥の焼結再資源化プロセスに関する研究(3) : 汚泥と他の廃棄物との混合焼結

概要

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Co-operative research between Industry and University has been carried out to utilize the sludge in Tagonoura Bay. Evalution of the sludge sintering process and characterization of sinterd products were reported previously in a series of studies on the recycling process of the dredged-sludge. This work deals with the mixture of dredged-sludge and some wastes such as municipal incinerated ashes and the residual glass dust of incinerated FRP (fiber reinforced plastics) in application of sintering technology developed previously . The following results were obtained : (1) Addition of glass particles to the sludge stimulates the main sintering reaction to increase the shrinkage ratio of sintered products, resulting in their bending fracture strength. (2) Addition of municipal incineration ash to the sludge, on the other hand, reduces the sintering reaction. So the product sintered with mixing a proportion of equal contents results in lower fracture strength than that of (1). (3) The optimum sintering process , with municipal incineration ash only, needs a sintering reaction at higher temperatures than 1200℃. This will give a product with enough fracture strength and without chloride compounds such as NaCl.
東海大学の論文
1998-03-30