飽和酸素水供給による底泥中の微生物活動に関する研究

元データ 2006-08-30 宮崎大学

概要

Abstract At present eutrophication is the big problem for lake area. To improve this problem, saturated dissolved oxygen water was supplied to the sediment and this has increased the microorganism activity thus improvement of the sediments' environment is estimated. In this study, by supplying saturated dissolved oxygen water to the sediment the following results were obtained: 1) the numbers of microorganisms (bacteria, protozoa Tubifex hattai) in the sediment increase, and the microorganism activity are increased. 2)Tubifex hattai appeared inside the sediment surface at day 7 resulting the oxygen penetration into the sediments to be about 16mm. 3)Volatile suspended solids increase, but the number of microorganisms with ability resolving organic matter in the sediment increases thus decrease of organic matter in the sediment is been estimated. 4) Nutrients released from the sediment was controlled

著者

佐伯 雄一 宮崎大農
佐伯 雄一 宮崎大学農学部
山内 正仁 鹿児島工業高等専門学校
増田 純雄 宮崎大学工学部
関戸 知雄 宮崎大学工学部土木環境工学科
後藤 洋規 日本ヒューム株式会社
山内 正仁 鹿児島高専都市環境デザイン工学
関戸 知雄 宮崎大学工学部
佐伯 雄一 宮崎大学農

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