貯水池堆積物の嫌気化にともなう微生物作用と底質鉱物の変化の実験的検討

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タイトル別名
  • Experimental Study of Microbiological and Mineralogical Effects of Reservoir Sediments Under Anaerobic Condition
  • チョスイチ タイセキブツ ノ ケンキカ ニ トモナウ ビセイブツ サヨウ ト テイシツ コウブツ ノ ヘンカ ノ ジッケンテキ ケントウ

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抄録

To evaluate the bottom sediment and water quality change of dam reservoirs, laboratory column experiments using dredged bottom sediment and water of the dam reservoir were conducted for 18 months. The environmental, microbiological and mineralogical changes of the sediment and water in the columns were investigated. Nitrate-reducing and iron-reducing reactions occurred in the 10-12cm depth of the column, and the environment became anaerobic. Denitrification and methane generation due to microorganisms similar to paddy field were observed in the layer, however, the activity of sulfate-reducing bacteria was low. It showed the absence of the sulfate and supply of energy sources in the sediments. No mineralogical change in the sediments was observed under the anaerobic condition.

収録刊行物

  • 水環境学会誌

    水環境学会誌 30 (6), 317-323, 2007

    公益社団法人 日本水環境学会

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