Life Cycle Cost Assessment of Solid Waste Disposal Systems

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  • 廃棄物固化式処分システムのライフサイクルコスト評価に関する研究

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<p>The authors have previously shown that solidification-type repositories reduce LCC compared to conventional repositories. However, there was a problem that the data from the demonstration tests were not reflected in the results. Therefore, the purpose of this study was to demonstrate the usefulness of a solidified landfill by reexamining the condition setting based on the demonstration test data from a simulated solidified landfill set up in the F Landfill Site in Fukuoka City, and by calculating LCC including the period from the start of landfill to ground improvement for site utilization. As a conclusion, it was shown that the LCC per ton of landfill waste is about 2.0% smaller for the solidification type than for the conventional type in the 100,000-ton scale, and about 17.6% smaller for the conventional type in the 1 million-ton scale. In addition, a comparison of LCCs for each life cycle stage shows that the solidification type has a smaller LCC during the construction phase and maintenance period than the conventional type, but a larger LCC during the service period.</p>

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