牛ふんのコンポスト化における有機物分解に及ぼす通気と切り返しの影響

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  • カルヤデイ ジョコヌグロホワヒユ
    The Japanese Society of Agricultural Machinery Graduate School of Life and Environmental Sciences, University of Tsukuba
  • 原野 道生
    The Japanese Society of Agricultural Machinery Graduate School of Life and Environmental Sciences, University of Tsukuba
  • 清水 直人
    The Japanese Society of Agricultural Machinery Graduate School of Life and Environmental Sciences, University of Tsukuba
  • 瀧川 具弘
    The Japanese Society of Agricultural Machinery Graduate School of Life and Environmental Sciences, University of Tsukuba
  • 木村 俊範
    The Japanese Society of Agricultural Machinery Graduate School of Agriculture, Hokkaido University

書誌事項

タイトル別名
  • Degradation of Organic Matter in Cattle Manure Composting by Aeration and Turning in a Packed-Bed Reactor

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A mixture of cattle manure and sawdust was composted using an 18.8 L reactor at aeration rates of 0.05, 0.15, and 0.50L/min.kgdm, employing three turning patterns (no turning, full turning, and turning with position change of the layers). The maximum temperatures for aeration were 64.3°C at 0.05L/min.kgdm, 73.2°C at 0.15L/min.kgdm, and 70.8°C at 0.50L/min.kgdm. An aeration rate of 0.50L/min.kgdm effectively accelerates composting in the early stage. A combination of aeration and the turning operation were found to resulting in different composting process patterns. Organic matter reduction in forced aeration composting can be enhanced with turning and its reduction in composting with full turning was somewhat greater than that for turning with a position change. We propose major composition changes in compost material by aeration and turning in a fabricated packed-bed reactor.

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