| 摘要 |
PROBLEM TO BE SOLVED: To provide a judgment method of quickly, simply and properly judging whether or not a final waste disposal site satisfies required requirements for terminating its operation. SOLUTION: The judgment method of judging whether a final waste disposal site wherein waste comprising incineration main ash or incineration residue of city garbage is dumped and disposed of has been sufficiently stabilized or not, uses thermogravimetric analysis in atmospheric air of the evaporation residue of the waste dumped therein from which water contained in the waste or seeping out therefrom has been removed by evaporation, and determines that the stabilization of the final waste disposal site is complete if the ratio of the weight reduction of the evaporation residue corresponding to an exothermic peak of not lower than 200°C and not higher than 400°C relative to the weight reduction thereof corresponding to an exothermic peak of not lower than 400°C and not higher than 500°C has reached 0.4 or below. COPYRIGHT: (C)2009,JPO&INPIT
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