| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
This study aimed at clarifying stabilization scenario of the waste and concrete strategy of leachate management for landfill sites located in arid regions. Specific objectives are (1) prediction of the period and amount of leachate generation, (2) elucidating the drying process of waste, and (3) confirmation of the decomposition possibility of organic matter by column experiment. From the water balance model using weather data, it was found that leachate generated from landfill in the dry area mainly originates from waste and its production stops gradually after the filling work is completed. Based on the result obtained by column experiments and the precise model of the drying process, it was revealed that though the surface drying quickly progresses, due to the decreases of the liquid water transfer, the deep part of the landfill layer retains moisture for a long-time. Besides, it also became clear that the decomposition of organic matter ceases due to the promotion of drying.
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