Stimulation of waste decomposition in an old landfill by air injection

研究成果: ジャーナルへの寄稿学術誌査読

15 被引用数 (Scopus)

抄録

Three pilot-scale lysimeters were operated for 4.5 years to quantify the change in the carbon and nitrogen pool in an old landfill under various air injection conditions. The results indicate that air injection at the bottom layer facilitated homogeneous distribution of oxygen in the waste matrix. Substantial total organic carbon (TOC) decomposition and methane generation reduction were achieved. Considerable amount of nitrogen was removed, suggesting that in situ nitrogen removal via the effective simultaneous nitrification and denitrification mechanism is viable. Moreover, material mass change measurements revealed a slight mass reduction of aged MSW (by approximately 4.0%) after 4.5 years of aeration. Additionally, experiments revealed that intensive aeration during the final stage of the experiment did not further stimulate the degradation of the aged MSW. Therefore, elimination of the labile fraction of aged MSW should be considered the objective of in situ aeration.

本文言語英語
ページ(範囲)66-74
ページ数9
ジャーナルBioresource Technology
222
DOI
出版ステータス出版済み - 12月 1 2016

!!!All Science Journal Classification (ASJC) codes

  • バイオエンジニアリング
  • 環境工学
  • 再生可能エネルギー、持続可能性、環境
  • 廃棄物管理と処理

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