循環式準好気性埋立における浄化機構のモデル解析

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タイトル別名
  • Numerical Simulation of Self-Purification Capacity in a Recirculatory Semi-Aerobic Landfill Layer with Solid Waste
  • ジュンカンシキ ジュン コウキセイ ウメタテ ニ オケル ジョウカ キコウ ノ

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In order to elucidate the mechanism of self-purification in solid waste layers under recirculatory semi-aerobic landfill conditions, experiments were performed with lysimeters simulating, semi-aerobic landfills with or without recycling leachate, and the numerical simulations for the behavior of leachate organic carbon and nitrogenous components in solid waste layers under recirculatory semi-aerobic landfill conditions were carried out.<BR>Data from the experiments indicated that, in a solid waste layer, the depths where the biodegradation of nitrogenous components by nitrification and denitrification occurred, were very different among the semi-aerobic landfill type and the recirculatory semi-aerobic landfill type. The observed concentrations of organic carbon and nitrogen in the leachate were simulated with comparatively good coincidence by two Liquid Regions Models dividing the liquid phase in a solid waste layer into the stream region and stagnant one.

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