Early Stabilization Method for Landfill Site :

Ono Yusaku, Endo Kazuto, Tojo Yasumasa, Yamada Masato

doi:10.3985/mcwmr.26.22

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Other Title

早期安定型最終処分場技術
早期安定型最終処分場技術 : 廃棄物特性や中間覆土が埋立地や浸出水に与える影響
ソウキアンテイガタサイシュウショブンジョウギジュツ : ハイキブツトクセイヤチュウカンフクドガウメタテチヤシンシュツスイニアタエルエイキョウ
How Waste Properties and Intermediate Cover Soil Influence Landfill Leachate.
――廃棄物特性や中間覆土が埋立地や浸出水に与える影響――

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Description

In Japan, controlled-type solid waste landfills are usually controlled under semi-aerobic conditions, however, an impermeable layer has been made in most of them. Therefore, parts of the waste layer in such landfills tend to be under anaerobic conditions. This paper investigates characteristics of the leachate from the mixture of organic and inorganic waste under the anaerobic state. Factors that could reduce COD and heavy metals in the internal water after it passes through the intermediate cover soil are also explained. Furthermore, the authors clarify the phenomenon whereby Ca²⁺ in the incineration ash is dissolved in leachate and trapped by the intermediate cover soil. This causes the incineration ash to solidify. In addition, the paper mentions how to keep the permeability of waste and intermediate cover soil in landfills in order to induce faster stabilization.<br>　 In conclusion, for maintenance of a landfill site, it is important to take three factors into careful consideration: incompatibility of waste, permeability of landfill site and quality of intermediate cover soils.

Journal

Material Cycles and Waste Management Research

Material Cycles and Waste Management Research 26 (1), 22-34, 2015-01-31

Japan Society of Material Cycles and Waste Management

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